Providing, Supplying and Laying PipeLine For Technical Villages Kamalpur, Aakba, Ruppura Up to their Existing Sump Under MandR to Modhera Group RWSS

Estimated Cost : Rs.

Gujarat Water Supply & Sewerage Board

Zone-2, AHMEDABAD

Bid Documents for Design, Build & Operate Contract for

BREAK UP FOR INTERIM PAYMENTS ...............................................

Volume-III, Price Bid, Page No.-

Name of Work:- “Providing ,Supplying and Laying Pipe Line For Technical Villages

Kamalpur, Aakba, Ruppura Up to their Existing Sump Under M&R to Modhera

(1) The bidder shall quote his firm and fixed price for the entire work under this

Contract, defined in more details in various sections of this bid document.

(2) The rates and prices shall be submitted in the electronic formats given by n-

procure which is called Schedule-B. Rates and prices received in any other

formats will be rejected and the Bids will be disqualified.

(3) It will be entirely at the discretion of the Employer to accept or reject the

bidder’s proposal, without giving any reasons whatsoever and the bidder shall

not be permitted to withdraw his bid on this account.

be free supplied from the by client.

(5) In Schedule-B the Bidder shall quote prices for the items on lump sum / unit

rate as called for against the BOQ item.

in Schedule-B only will be considered for price evaluation & shall form a part

of the Contract Agreement.

and evaluation.

(8) The Bidder shall quote his prices for Operation & Maintenance in Schedule-C.

Bidder shall give year wise break up of cost for 5 years O&M in Schedule-C/1 to

Schedule-C/5 separately for Schedule-C. The total shall be inline to the price

quoted in Schedule-C. The total shall be carried forward to Schedule-B for

comparison and evaluation.

(9) Wherever for a particular item the quantities have been specified payment

shall be on unit rate basis and unit variation in quantity will be paid with pro

(10) Each item is to be individually priced online and the amounts shall be added

of prices shall be left blank except where the item description requires the

item to be priced on "as applicable” basis. The item shall not be priced if it is

“not applicable” to the bidder’s design, in which case the bidder shall add the

words “NOT APPLICABLE”. The wording in the item description is for subject

matter guidance only; clause references are indicative only and all other

relevant clauses shall also be referred to. The prices shall allow for all the

works covered under the bid and all liabilities and contractual obligations

whether separately specified or not. Items against which no prices are quoted

shall not be separately paid for and the bidder shall be deemed to have

covered the cost of execution of such items (according to the requirements of

the bid document) in the prices quoted for other items.

executed for satisfactory working/safety of the system as specified, will not be

separately paid for by the Employer when executed and shall be deemed to be

already covered by other items and rates listed in the price sheets No extra

Volume-III, Price Bid, Page No.-

payment shall be given for any item which is required to complete and perform

the pendency of the Contract. In case of any discrepancy noted in the various

corrections if any will be considered for financial evaluation of the bid.

(13) Schedule ‘D gives the basis of interim payment for construction of civil works.

(14) The bidder shall be deemed to have allowed in his price for provision,

maintenance and final removal of all temporary works of whatsoever nature

required for construction including temporary bunds, diverting water,

pumping, de-watering etc. for the proper execution of works. The rates shall

also be deemed to include any works and setting out that may be required to

be carried out for laying out of all the works involved.

(15) Prices shall be filled online only.

Contract, the Specifications and other sections of these bid documents and

these documents are to be taken as mutually explanatory of one another.

(17) The bidder shall interpret the data furnished and carry out any additional

survey work, or investigation work required at his own cost.

(18) The prices quoted shall also include the cost of materials utilized for testing.

(19) The bidder should acquaint himself with the site conditions including the

access to Work site. The successful bidder shall have to make suitable access

to work sites at his own cost. These accesses will be used by the other

contractors working for GWSSB.

and the prices shall include all the equipments / materials / accessories and

services required as per the specifications. The bidder shall fill in the price

schedule furnished.

(21) The amount to be quoted for O & M / year shall be as per Volume-II, General

Conditions of Contract, Clause No. 1, and Security Deposit.

(22) 1% of the value of work will be deducted from the Running bill against labour

cess which is non-refundable.

(23) Third Party Inspection / CSC agency will be deployed by GWSSB and charges of

the same will be borne by GWSSB.

(24) Any expenditure incurred by inspection/ CSC agency for the work misinformed

by the contractor and charges of inspection/ CSC agency without any work due

to misinformation shall be recovered from the contractor.

(25) The rates quoted shall be exclusive of GST, but inclusive of all other taxes,

duties which shall not be paid extra. While GST will be paid for admissible part

of actual work done at the approved tender rates and tender conditions of

price variations. GST shall be paid as per prevailing rates at the time of

payment. The TDS shall be deducted at source as per provision of IT rules and

(26) The rates should be quoted exclusive of GST but inclusive of all other taxes as

per Volume-1 (B), General Conditions of Contract, Clause No.

(27) The process requires that the bidder shall quote his price for the work

shall remain firm and fix during the entire period of performance of the

contract except price variation allowed for supply of MS/DI/PVC/GI pipe as per

Volume-II Clause No. 59, General Conditions of Contract.

Volume-III, Price Bid, Page No.-

(28) Payment shall be made for the components for which lump sump prices are

quoted, as per the schedule of payment. Total cost will be worked out on the

basis of work done of individual items and rates quoted against those

particular items only.

(29) Royalties: The contractor shall be liable to pay the royalty of the quarried

materials/ minerals used in the construction of works at the rates specified in

the Narmada Water Resources, Water Supply & Kalpsar Dept. Resolution No.

GEN-2010-595- (6)- M.I.Cell ( K-1) Dt. 29-4-2011 ( Gujarati Version Copy

enclosed) and shall be recovered from the running bills of the work from time

to time and remaining amount if any shall be recovered from the final bill

before releasing the security deposit of the work. The contractor shall furnish

the statement showing the quantity of quarried materials / minerals from

whom purchased ( with full address of the seller) and copies of the bills for

purchase to the Executive Engineer of the in charge of the work. The

contractor shall also furnish such additional information as regards royalty

payment to the competent authority.

(30) Agency shall have to take Insurance policy and intimate to GWSSB along with

the evidence within time limit. In case of non compliance entire responsibility

shall be rest with the agency and required amount shall be recovered from any

due amount of the agency.

(31) GWSSB can recover penalty amount from the agency for not taking the

insurance. Though the penalty amount is recovered, responsibility of the

agency for taking insurance shall be continued and will not be escaped from

the responsibility.

(32) The contractor shall apply fair means of stock maintenance and shall adopt

accounting standard as may be prescribed under GST Act as applicable in the

state of Gujarat. For arriving at the difference in procurement prices due to

introduction of GST it will be open for the Board to ask for original invoices,

lorry receipt, weigh bridge slips, payment details and such other documents as

may be required for the purpose.

(33) The claim of contractor regarding GST shall have to be backed by

documentary evidence substantiating the actual payment of tax duly certified

by the competent tax authority. The final decision regarding the quantum of

claim amount to be recovered or reimbursed shall be of the competent

authority of the GWSSB and shall be binding on the contractor.

Signature of contractor Executive Engineer

P. H. Works Division

Volume-III, Price Bid, Page No.-

Bidders are required to fill up all the blank spaces in this Bid Form.

THE EXECUTIVE ENGINEER,

PUBLIC HEALTH WORKS DIVISION,

SUB: “Providing ,Supplying and Laying Pipe Line For Technical Villages Kamalpur,

Aakba, Ruppura Up to their Existing Sump Under M&R to Modhera Group RWSS”

The bidder shall quote his firm and fixed price for the entire work under this Contract, defined in

more details in various sections of this bid document.

1. Having visited the site and examined the Bid Documents, Drawings, Conditions of Contract,

including Addenda/Amendments to the above, for the execution of the above Contract, we the

undersigned offer to design, Engineer, procure, construct, complete, commission, operate and

maintain the whole of the said works for 2 years from the date of commissioning including

defects liability period as given in Conditions of Contract and in conformity with the drawings,

Documents, including Addenda Nos.__________ (insert numbers) for Lump sum fixed price of

Construction including free trial run for three months or such other sum as may be ascertained

in accordance with the conditions.

2. I/We agree that

a) if we fail to provide required facilities to the Employer’s representative or any other

person/Agency by the Employer to perform on his behalf for carrying out the inspection and

testing of materials and workmanship.

b) if we incorporate into the Works, materials before they are tested and approved by the

Engineer’s representative.

c) if we fail to deliver pure water of required quantity according to the conditions/stipulations

of the Contract, the Engineer will be at liberty to take any action including termination of

Contract and impose at his absolute discretion any penalties, and/or reject the work.

3. We undertake, if our Bid is accepted, to complete and deliver the works in accordance with

the Contract within 15 months, inclusive of monsoons, from the date or receipt of Letter of

Acceptance issued to us by you.

4. We agree to abide by this Bid for a period of 180 days from the Last date of submission of the

bill and it shall remain binding upon us and may be accepted at any time before the expiry of

5. In the event of our Bid being accepted, we agree to enter into a formal Contract Agreement

with you incorporating the conditions of Contract there to annex but until such agreement is

prepared this Bid together with your written acceptance thereof shall constitute a binding

Contract between us.

6. We agree, if our Bid is accepted, to furnish performance /Security in the forms and of value

specified in the Clause 1 of Volume-II, “General Conditions of Contract”.

7. We have independently considered the amounts of liquidated damages shown in Appendix to

Bid and agree that they represent a fair estimate of the damages likely to be suffered by you

in the event of the work not being completed by us in time.

8. We understand that you are not bound to accept the lowest or any Bid you may receive.

Volume-III, Price Bid, Page No.-

(Name of the Person)

Company Seal _____________________

Duly authorized to sign Bid for and on behalf of (fill in block capitals)

Witness Signature ___________________________

Volume-III, Price Bid, Page No.-

Name of Work:- “Providing ,Supplying and LayingPipe Line For Technical Villages

Kamalpur, Aakba, Ruppura Up to their Existing Sump Under M&R to Modhera

Group RWSS”programme’’

The bidder shall quote his firm and fixed price for the entire work under this Contract,

defined in more details in various sections of this bid document.

Schedule showing the approximately the materials to be supplied to the contractor from

government stores for the work to be executed and the rate at which they are to be charged.

Rate at which the

Sr. material will be charged Place of

Particular Qty.

No. to the contractor Delivery

1. The contractor submitting the Tender shall see that the rate in Schedule-A are filled in by the

Engineer in Charge at the time of issue tender.

2. The contractor while submitting the tender shall provide his own arrangement at his own cost

for loading, unloading, and transporting safety to the site of work the cement stipulated in

3. Binding wire of 15 gauge of thinner gauge required for placing the reinforcement in position

shall be provided at his own cost.

4. All the materials required for the items other than labour in Schedule-A but available with the

dept. will be issued on request to the contractor. (for use in this contract only) at prevailing

market rates or departmental issue rates whichever is higher.

5. All the surplus materials supplied by the dept. As mentioned in schedule-A should be handed

over to the Department by the contractor at the Govt. stores as directed.

6. The materials mentioned in schedule-A shall have to be checked for their correctness and

soundness by the contractor before taking the delivery of the materials from the Government.

7. Necessary cement will be purchased by the agency at their own cost from open market.

8. The persons of firm submitting the Tender should see that rates in the above schedule are

filled up by the Executive Engineer, on the issue of form prior to the submission of the Tender.

9. Carting of above materials should be done by contractor at his own cost.

10. Contractor should return the balance materials in good and acceptable condition, otherwise

recovery at the double rates will be affected in view of Clause 12.4.

Signature of Executive Engineer Deputy Executive Engineer

contractor Public Works Division P.H.Sanitary Unit

Mehsana Modhera

Volume-III, Price Bid, Page No.-

NAME OF WORK :- Providing ,Supplying and Laying Pipe Line For

Technical Villages Kamalpur, Aakba, Ruppura Up to their Existing Sump

Under M&R to Modhera Group RWSS .

Qty. Unit Item Rate Per Amount

Providing and supplying in standard length

ISI mark rigid unplasticised PVC pipes

suitable for potable water with ring fit joint

including cost of rings, as per IS

specification no. 4985/1988 including all

local and central taxes, transportation, freight

charges, octroi, inspection charges, loading,

unloading, conveyance to the departmental

stores and including cost of jointing meterial

(B) Test pressure 6 kg per sq.mt

2250.00 Rmt (i) PVC pipe 110 mm dia. 199.00 Rmt

(GWSSB Revised SOR 2022-23,I

320.00 Rmt (ii) PVC pipe 160 mm dia. For Shankhalpur 420.00 Rmt

Providing and supplying ISI mark CI D/F

Sluice Valves as per IS:14846 (Latest

Edition) of following class and diameter

including all taxes, insurance, transportation,

freight charges, octroi, inspection charges,

loading, unloading,conveyance to

departmental stores, stacking etc. complete.

Sluice valves with ISI mark only (PN-1 With

hand wheel /cap operated (PD type short body)

6 No. 100 mm dia 3563.00 No.

1 No. 150 mm dia. 5848.00 No.

Providing and supplying at Store or site of

work including Freight, Loading, Unloading,

Stacking, Insurance and all taxes etc.

(i) P. V. C. Tail Piece with P. V. C. Flange

12 No. (ISI) Heavy duty (Moulded)-110 mm dia. 320.00 No.

1 No. (ii) PVC tee (moulded) 2000X110 mm dia 407.00 No.

Volume-III, Price Bid, Page No.-

(iii) PVC bend 90 degree (moulded) 110 mm

Manufacture, supply and delivery of cast iron

detachable joints(CID Joint),complete with

joint flange, dully drilled in synthetic rubber

siling rings, manufacture from styene

butadine rubber (SBR) and other required

accessories such as nut bolts, etc. confirming

to IS specification 8794/ 1988 or it;s latest

revision, if any suitable for use with A.C.

pressure pipe, delivery of joints including it;s

accessories including loading, unloading,

carting, stacking, insurance, all taxes, octroi,

Long Coller oversize suitable to PVC/ HDPE

2 No. (2) 160 mm Class - 6 for Shankhalpur 387.00 No.

Providing and supplying C.I Air valves of

approved make &quality of following class

and diameter including all taxes, insurance,

transportation, freight charges, octroi,

inspection charges, loading, unloading,

conveyance to deparimenial stores, stacking

Air valves double acting (S2)

8.00 No. 25 mm dia. 661.00 No.

Excavation for pipe line trenches for water

supply, sewerage line, manhole etc. all with

shoring and struting if required as per

required gradient and line including safety

provisions using site rails and stacking

excavated stuff including up to all required

lead cleaning the site etc. complete for all

lifts and strata as specified.

(A) In all sorts of soil and soft murrum

1542.00 Cum (1) Up to 1.50mt depth 89.00 Cum

Volume-III, Price Bid, Page No.-

Lowering, laying, fixing and jointing

PVC/uPVC/cPVC pipes and specials of

following class and diameter including cost

of conveyance from stores to site of works

including cost of labour, material, cement

solvent, giving satisfactory hydraulic testing

as per ISI code.

2250.00 Rmt 110mmdia 19.00 Rmt

320.00 Rmt 160mm dia 28.00 Rmt

Lowering, laying and jointing in position

following C. I. / D/F Reflux valves, Butterfly

valves, Sluice valves and Air valves

including cost of all labour, jointing material,

including nut bolts and giving satisfactory

hydraulic testing, etc. complete .

6 No. 100 mm dia 439.00 No.

1 No. 150mm dia 585.00 No.

Refilling the pipeline trenches incl. ramming,

1514.00 Cmt watering, consolidating desposal of surplus 22.00 Cmt

stuff as directed within a radius of 3 km.

Construction of valves chambers in brick or

bela stone masonary, locally available in C.

M. 1:6.Foundation concrete 150 mm thick in

C. C. 1:4:8of trap metal size 25 mm to

mm thick, inside cement plaster in C. M. 1:3

and cement pointing outside in C. M. 1:3 and

top cover of precast RCC slab 100 mm thick

(with key hole in two parts, each with

handles or MS Bar etc. complete as given

size) Upto 1 Mt. depth from G. L. to pipe

invert level incl. complete civil works but

excl. cost of excavation and refilling.WIth

cast in situ RCC slab in one single piece with

fixing of CI-MH Frame and cover (excl. cost

of CI-MH Frame and cover) with 23 mm

thick brick masonary wall in C.M.1:6

Size of 0.90 m x 0.90 m and 1.0 m deep

20 No. With precast slab in two parts 15 cm. thick 7738.00 No.

Volume-III, Price Bid, Page No.-

Providing and laying ordinary cement

concrete 1:2:4 (1- Cement 2- coarse sand : 4-

graded stone aggregates 20 mm nominal

2.70 Cmt size) and curing complete excluding the 3551.61 Cmt

cost of formwork in (A) Foundation and

plinth (more than 10 ton)

Lowering, laying & jointing in position C.I/

D.F Sluice valves and air valves including

8.00 No. cost of all labour, jointing material, including 199.00 No.

nut bolts and giving satisfactory hydraulic

testing etc. comp.

Air Valves double ball flanged 25 mm dia

Supply of horizontal mono submesible pump

3 Phase 400 / 440 V, 50 C/s AC supply and

2900 RPM IS: 14220 MOC: Casing- CI FG

260, Impeller: Bronze LTB II, Shaft: S.S

of following capacity as per GWSSB's

specifications.

1.00 Set Minimum 10 HP 18792 Set

Supply of DOL / Star Delta starter suitable

for local & remote pump control application

consisting of MPCB, overload relay and

contactors as per Type II coordination

1.00 No. including digital voltmeter, analogue 9128 No.

ammeter with selector switch, run hour

meter, required protective relays & control

accessories of following capacities as per

GWSSB's specifications: S. D. 10 HP

Supply of PVC insulated flat submersible

cable as per detailed technical specifications

65.00 RMT 87.00 RMT

of GWSSB conforming to IS 694, IEC

RMT Supply of ISI mark GI pipes with coupling of

following class & diameter.

Supply of GI fittings & specials viz bends,

30.00 kg flanges, threaded tappers, nipples, coupling, 112.7 kg

reducers etc of required size.

Volume-III, Price Bid, Page No.-

Supply of horizontal mono submesible pump

3 Phase 400 / 440 V, 50 C/s AC supply and

2900 RPM IS: 14220 MOC: Casing- CI FG

1.00 Set 260, Impeller: Bronze LTB II, Shaft: S.S 410 15552.00 Set

of following capacity as per GWSSB's

specifications.: S.M. 2.2, Q: 360 LPM, H @

24 Mts, Minimum 5.5 HP

Supply of DOL / Star Delta starter suitable

for local & remote pump control application

consisting of MPCB, overload relay and

contactors as per Type II coordination

1.00 Nos including digital voltmeter, analogue 8383.00 Nos

ammeter with selector switch, run hour

meter, required protective relays & control

accessories of following capacities as per

GWSSB's specifications: D. O. L. 7.5 HP

Supply of PVC insulated flat submersible

cable as per detailed technical specifications

50.00 RMT of GWSSB conforming to IS 694, IEC 60227 58.00 RMT

Supply of CI double flanged reflux valve as Nos

per IS 5312 of PN 1.0 rating with ISI mark.

1.00 Nos 100mm 5348 Nos

Providing & fitting kitkat pattern porcelain 555.37 Set

cut out with base (ecah set of 03) of

2.00 Set ampers current capacity suitable to 500 V to

be erected on 01 wooden board of required

size with hardware etc.

Supply & erection of ELCB / RCCB conforming 2750 No

to IS: 12640 and having sensitivity of 30 mA and

short circuit withstand capacity of 6 KA and

suitable for operation on 3 phase and neutral

2.00 No V having characteristic of quick action &

tripping with all advance feature & do not

incorporate any electronic component for

following maxim rating.: 40 AMP

Volume-III, Price Bid, Page No.-

Providing & fitting pipe type earthing having

150 cm long and 25 mm dia G I pipe with

LS coupling & buch burried in specially prepared LS

2.00 earth pit complete with necessary 8 SWG G I 583.93

earth wire inclduing using charcoal / coke and

salt in required quantity.

Installation, testing & commissioning of

horizontal mono submersible pump set including

lowering, laying of GI pipe line, fitting of vlaves,

LS control panel board including testing etc. LS

Job complete with all required hardware, jointing & Job

other sundry materials.

Total Estimated Rs.

I / We am / are willing to carry out the work at______________________________% above / Below

percent (should be written in figure and words) of the estimated rates mentioned above amount of my

/ our tender works out as under.

Estimated amount put to tender : Estimated amount put to Tender :

Deduct________% above Add________% above

Signature of Executive Engineer Deputy Executive Engineer

contractor Public Works Division P.H.Sanitary Unit

Mehsana Modhera

Volume-III, Price Bid, Page No.-

1. As mentioned in the Conditions of contract, the Contract being a lump sum type

turnkey Contract on EPC basis, the provision of measurement will be applicable only

for the assessment of value of work done for inclusion in any interim certificate for

part payment to the Contractor.

2. The Schedule specifies the procedure for all such assessment of the items specified in

3. Each item of Schedule-B has been divided into broad components. The Employer's

Representative shall assess the value of each component as indicated in paragraph

4. Percentages are indicated against each component of each items specified in Schedule

B, based on the Employer's best appreciation of the value of the component as related

to the total costs of the concerned item as whole. A head titled (any other item(s)) is

included in each breakdown of schedule and the tenderer shall at the time of

tendering indicate any additional items which he considers necessary but cannot be

covered by any of the heads indicated in the breakup.

5. The percentage breakup as indicated in the Schedule may differ from that

corresponding to the tenderer’s scheme and design and he should take this into

account while quoting his lump sum prices for the items specified in Schedule-B.

6. The contractor shall, after approval of his detailed designs and drawings furnish to the

Employer's Representative an initial bill of quantities to all major items, to be

reviewed and updated periodically with the Employer's Representative. This bill of

quantities will be used for assessment of percentage progress of the component at any

stage. By measurement jointly taken by the Employer's Representative and the

Contractor, mutually agreed and entered in the measurement books in the form and

by the method approved by the Employer's Representative, and signed jointly by both

Signature of contractor Executive Engineer

P. H. Works Division

Volume-III, Price Bid, Page No.-

Item No.1: Providing and supplying in standard length ISI mark rigid unplasticised

PVC pipes suitable for potable water with ring fit joint including cost of rings, as per

IS specification no. 4985/1988 including all local and central taxes, transportation,

freight charges, octroi, inspection charges, loading, unloading, conveyance to the

departmental stores and including cost of jointing material etc. complete.

(1) 110 mm Dia 6Kg/Cm2

(2) 160 mm Dia 6Kg/Cm2

1. The contract shall be covering manufacturing, supplying and delivering of;

"Unplasticized PVC pipes along with elastomeric sealing ring (EPDM Rubber) Joint

bearing ISI Mark as per relevant Indian Standards with conforming to relevant

Indian Standard and sufficient quantity of Solvent Cement Solution"

2.1 UPVC PIPE WITH ELASTOMARIC SEALING RING:

The UPVC Pipes and UPVC Couplers to be manufactured supplied and delivered under the

scope of this contract shall be manufactured in accordance and conforming to IS:4985-

2000 or its latest revision or amendments with ISI certification mark. Elastomeric sealing

ring shall be in accordance with one of the types as per IS 5382 & it shall be EPDM rubber

ring with ISI mark.

2.2 UPVC COUPLERS AND SOLVENT CEMENT SOLUTION:

UPVC Couplers shall be conforming to IS:4985-2000 OR its latest revision/amendment.

Solvent Cement Solution shall be of a laboratory grade.

3. TEMPERATURE VARIATIONS:

All the pipes and couplers to be manufactured, supplied and delivered shall be subjected

to weather conditions like sun, dust, rain, wind as available in State of Gujarat. They shall

be also subjected to carry and convey drinking water under variable temperature

conditions ranging from 4 C0 to 45 C0.

Volume-III, Price Bid, Page No.-

4. TENDER PRICE:

The tender price shall include all labour, material and machinery cost necessitated to be

a) Proper manufacturing of the Ring fit PVC Pipes/Couplers/Elastomeric sealing ring

manufacturing facility preferably certified with ISO: 9001:2000.

b) All tests required to be undertaken at manufacturers premises.

c) Transportation of the pipes/couplers either by Rail and/or Road services with all the

covers duly and appropriately insured.

d) Delivery of pipes/couplers with proper loading, unloading, stacking at GWSSB store as

indicated by Engineer-in-charge.

e) Further towards proper maintenance and discharged and all contractual obligations.

5. DELIVERY SCHEDULE:

The delivery schedule shall be as under,

Material shall be offered for inspection within 30 days from the date of R.P.A.D./ Fax /

Courier/Speed Post/ e-mail of order whichever is earlier. The total delivery time

shall be considered as 30 days + time for inspection (i. e. from the date of inspection

offered to the date of issue of inspection release note) by Third party inspection

agency (Normally within one week but maximum within two-week time) + 12 days

transportation time. Extension of time limit on account of materials rejected during the

inspection will not be permitted. In case of emergency the delivery period can be less with

mutual consent.

The methods of marking all the pipes to be delivered under scope of contract shall ensure

that all the information will remain legible even after transportation, storage in open space

etc. In general, the legible and indelible marking upon the goods shall indicate the

a. Manufacturer’s name or trade mark.

b. Outside diameter.

c. Class of pipe and pressure rating.

d. Batch or lot number.

Volume-III, Price Bid, Page No.-

e. ISI certification mark on each pipe.

f. Purchasers mark as “GWSSB” be inscribed.

g. Any other important matter that the manufacturer or purchaser deems fit to be

7. PACKING AND HANDLING:

When the materials are transported at Railway Risk special packing as per IRCA rules are

absolutely necessary for which the extra cost, if any, shall be borne in total by supplier

The supplier shall have proper handling instruments/equipment’s and shall follow to a

suitable method of handling of pipes as may be approved by Engineer, while unloading

and stacking material in the stores.

8. MATERIAL & WORKMANSHIP:

8.1 General requirements of materials and workmanship shall mean any material or

article either raw or finished one required to be used in the manufacturing process of

8.2 All the material shall be new and of high quality.

8.3 In case, if material is not specified by relevant ISS for manufacturing part or the whole

as item, the supplier shall prepare specification in concurrence with manufacturer and

shall seek approval of Engineer prior to its use in the manufacture.

B TECHNICAL SPECIFICATION FOR UPVC PIPES

1. SUPPLY OF MATERIAL

The general requirement relating to supply of material and manufacture of UPVC Pipes

and shall be conforming to the relevant Indian Standard Specification No 4985-2000 or its

latest revision. The pipe shall be with ISI mark.

1.1 UPVC Pipes and couplers shall be conforming to and manufactured as per IS:4985-

2000 OR with its latest revision or amendments.

1.2 The dimensions, material compositions, tests etc. shall be as per IS:4985-2000 or with

its latest revision or amendments. Each pipe shall be marked with ISI certification mark.

1.3 The minimum & maximum wall thickness of the pipe shall be as specified IS:4985-

Volume-III, Price Bid, Page No.-

1.4 The colour of pipes & couplers to be supplied under the scope of this tender shall be

light grey as per Clause No. 10.1 i. e. Visual Appearance of IS 4985-2000.

1.5 PVC pipes with elastomeric sealing ring joint pipe it shall be as per IS specification

1.6 PVC Pipe should be purchase only as per attached Vender list herewith.

2. UPVC COUPLERS

2.1 The material composition for UPVC Coupler shall be as per the material composition of

UPVC Pipes as per IS:4985/2000.

2.2 The size, pressure & manufactures name shall be mark on couplers also to identify the

class of coupler either class and size should be marked on couplers too or colour bends

shall be as per the colour shown in IS:4985/2000 Clause No.10.1

3. SOLVENT CEMENT SOLUTION

The quality of solvent cement solution shall be of a good quality. For each size of pipes

offered for inspection sample coupler with two pieces from two pipes shall be coupled with

solvent cement offered for inspection (as these are supposed to be coupled in field) and

this coupled unit shall be kept for hydraulic test at requisite pressure for the stipulated

time and observed for confirmation to IS:4985-2000.

4. Elastomeric sealing ring

It shall be in accordance with one of the types (Type - 1 to Type – 6) as per ISS 5382. The

sealing ring shall be EPDM rubber ring. The sealing ring shall be with ISI mark. The

lubricant applied for jointing of elastomeric rubber ring shall be of good quality and

comply the following specifications.

a. Must have paste like consistency and be ready for use, preferably soap jelly.

b. Has to adhere wet and dry surfaces of UPVC pipes and rubber ring.

c. Must be non-toxic.

d. Must be water soluble

e. Must non affecting physio-chemical and organoleptic properties of drinking water

carried on the pipe.

f. Must not have an objectionable odour.

g. Must not harmful to the skin.

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5. The Tests as per ISS 4985-2000 will be carried out by Third Party Inspecting

agency fixed by GWSSB as follows.

5.1 Sampling: Sampling should be done as per Clause No. 12 of IS 4985-2000.

5.2 Visual Appearance: The visual appearance of pipes shall be as per Clause No. 10.1 of

5.3 Opacity: The opacity tests for pipes shall be carried out as per Clause No. 10.2 of IS

5.4 Reversion Test: The Reversion Test shall be carried out as per Clause No. 10.4 of IS

5.5 Vicat Softning Temperature Test: The Vicat Softning Temp. Test shall be carried out

as per Clause No. 10.5 of IS 4985-2000.

5.6 Density: This test shall be carried out as per Clause No. 10.6 of IS 4985-2000. The

value shall be between 1.40 & 1.46.

5.7 Sulphated Ash Content Test: This test shall be carried out as per Clause No. 10.7 of

IS 4985-2000. The Sulphated Ash Content in PVC Pipe shall not exceed 11%.

5.8 Resistence to External Blows at 00 C: This test shall be carried out as per Clause

6. LONG TERM TEST:

a) (1) Type test and internal hydrostatic pressure test (as per clause No.11.1 of IS- 4985-

2000) and (2) Test for effect on Water (as per clause No. 10.3 of IS- 4985/2000) shall be

carried out as prescribed in IS-4985-2000 or its latest revision or amendments at fixed

intervals as specified by BIS.

However, GWSSB or Third party inspection / CSC agency fixed by GWSSB can verify the

certificates for these tests and representative of GWSSB or TPI can also remain present

during the tests if required and agency shall not have any objection for the same.

(b) Deposit for type test:

As per the clause No. 10(b) 1% of the value of the order quantity (excluding S.T.) is to be

kept in the deposit for type test till agency produces certificate based on samples collected

& tested as per BIS standards read with "SCHEME OF TESTING AND INSPECTION -

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The rates quoted shall be inclusive of insurance, freight / carting charges, loading,

unloading & stacking at store or site of works with excise duty exemption in 110 mm Dia.

6kg/Sq.cm PVC Pipe but exclusive of CST/GST (VAT). The CST/ GST (VAT) & entry tax if

any will be paid extra as actual on production of documentary proof of payment.

Inspection of materials at factory site shall be carried out jointly by the third party

Inspecting Agency as fixed by GWSSB & Concerned Executive Engineer of GWSSB when

pipe Length is more than 1000 Mtr.)

The supplier on receipt of supply order from GWSSB shall intimate the third party

inspection agency & concerned Executive Engineer to carry out inspection as soon as

material is ready.

The inspection calls for PVC Pipes, Couplers, Solvent Cement and elastomeric sealing ring

shall be given. If the sealing rings are not offered for inspection, the inspection note only

for pipes will not be issued by third party inspection agency. Inspection will be carried out

normally within one weeks time and on receipt of such intimation the inspecting agency

will inspect the materials as per the specification and on satisfying itself, will mark the

inspection marks on all pipes and issue inspection note to supplier and concerned

During third party inspection if the material offered for inspection is rejected by third

party Inspection agency in that case the third party inspection agency will mark the

rejection marking and will take other precautionary measures so that the rejected material

cannot be used in GWSSB in future.

Sample coupler and two pieces from two pipes shall be coupled with Solvent Cement

offered for inspection (as these are supposed to be coupled in field). This coupled unit

shall be kept for Hydraulic Test at requisite test pressure for the stipulated time and shall

be observed for conformation to IS:4985. Sample of pipes shall also be coupled with

elastomeric sealing ring and this test shall be carried out accordingly.

As regards post-delivery quality inspection of pipes, samples shall be collected by

Concerned officer/ Quality Control & Vigilance Unit of GWSSB & will be tested at

CIPET/GIRDA or any other agency as decided by GWSSB. Counter Reference Sample shall

also be collected at the time of joint Pre-delivery inspection in presence of the third party

inspection agency, the concerned Executive Engineer and the manufacturer with their

signatures on the sample and shall remain in custody of the concerned consignee and will

be tested at CIPET/GIRDA or any other agency as decided by GWSSB in case of doubt. For

inspection purpose the manufacture has to go in for line stencilling for identifying size and

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class for proper separation. The stock of offered material shall be in manageable batches

with adequate space lie spreading the pieces etc. to permit proper inspection and

inspection authority to be present during stamping so as to ensure that only actually

cleared material is stencilled. The inspected material should not be loaded after sunset to

avoid inadvertent dispatch of wrong material.

The payment shall be made as per Rmt basis.

a) PRICE VARIATION FOR UPVC PIPES:(Applicable)

The price variation will be based on Prime Grade 67 GER 01 (Formerly known as A Grade 67 GER 092)

announced by RIL from time to time.

For purpose of variation, 900Kgs of PVC resin will be considered for one tonne of PVC pipes. In the event of

any variation, prices will be calculated as:

P Price Variation per tonne

A Current Price of PVC resin per tonne fixed by RIL (as published on GWSSB

Website) (Price without GST) as on dated which is offered for pipe inspection.

B Price of PVC resin per tonne as per as published on GWSSB Website (Price

without GST) on last date of online bid sub mission (i.e last date of online

submission as per the n- procure website log)

C Weight of pipe (In this case value of C= 1 Tonne)

Note: Price of PVC resin per tonne shall be considered after deducting regional subsidy if any

declared by the RIL.

Condition for variation in price of uPVC PIPES:

1. No Ceiling for Escalation for difference in the cost of uPVC Pipe will be applicable.

2. This Clause shall be operative from the date of Signing of Agreement and up to the expiry of original

time limit of Tender.

3. The contractor shall have to give undertaking at the time of claiming their bills for price

variation as under:

"We hereby certify that the uPVC resin of the uPVC Pipes for which the bill preferred is not purchased

through any Government or Semi Government undertaking at the concession rate"

4. Price Variation (payable/Recoverable) on Extra and Excess Items shall be allowed upto increase of 10%

(due to Excess + Extra) of overall total length of respective type of pipelines (PVC or DI or MS or HDPE)

mentioned in BOQ of the tender.

5. If the time limit is extended without penalty, then in such case price variation (positive/negative) on

the pipes shall be applicable restricted to the Bill of Quantities mentioned in tenders plus Excess and

Extra Subject to Clause 4 above. For that part of the extended time for completion, wherein delay is

attributable to contractor for the quantities procured during such time period, no positive price

variation (Extra payable to contractor) shall be admissible but negative price variation (Recovery

against quoted price) shall be admissible. For this purpose, days on which penalty is imposed shall be

counted backwards from the actual date of completion.

6. Price Variation shall be calculated by concern Division office and shall be verified by paying Authority

prior to making payment.

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7. This formula shall be used only for uPVC Pipeline for calculating Price Variation.

8. This clause will be applied to the work irrespective of the cost of the work.

9. The final amount of variation payable / recoverable shall be calculated only on basis of final

publication of resin rate announced by IPCL.

10. In case of any discrepancy/dispute regarding application of price variation clause, decision of concerned

Chief Engineer shall be final and binding to the contractor.

Item No- 2 & 8 Providing, supplying, Lowering, Laying & Jointing in position

following ISI mark CI D/F Sluice Valves, Butterfly Valves & Reflux Valves of

following class and diameter including all taxes, insurance, transportation, freight

charges, octroi, inspection charges, loading, unloading, conveyance to departmental

stores, stacking, all labour, jointing material, including nut bolts and giving

satisfactory hydraulic testing etc. complete. Sluice valves with ISI mark only (A1)

PN-1 With hand wheel /cap operated (PD type short body)

(1) 100 mm dia C.I.D.F. Sluice valve Class PN-1.

(2)100 mm dia C.I.D.F. Sluice valve Class PN-1.

The work shall be carryout as per the description of the item and as per specification laid

down in PWD Hand book vol. I & II and instruction of Engineer in charge.

The sluice valve shall be of approved quality and as per ISS 780 OR latest revision with ISI

mark with hand wheel. Rate including necessary freight loading unloading, carting,

insurance & all taxes etc. complete.

Sluice valve and should be procured from the approved and ISI marked.

For sluice valve necessary jointing materials such as nuts bolts rubber packing shall have

to be supplied by the contractor without extra cost. It shall be fixed as per the instruction

of Engineer in charge.

No leakage shall be observed if observed shall be rectified by the contractor without any

The payment shall be made on number basis.

Item No- 3 Providing and supplying at Store or site of work including Freight,

Loading, Unloading, Stacking, Insurance and all taxes etc. complete

Specials as per site requirement shall be supplied by the contractor. The specials should

be as per standard and shall be got approved by the Engineer in charge before being used.

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The specials should be perfectly in working condition and having necessary threads holes

etc. as per standard.

PVC specials should be as per IS standard specification and should be price make. All the

specials should be suitable for PVC pipes for which it is being used.

The payment shall be made on No. basis as per Payment schedule.

Item No- 4 Manufacture, supply and delivery of cast iron detachable joints(CID

Joint),complete with joint flange, dully drilled in synthetic rubber siling rings,

manufacture from styene butadine rubber (SBR) and other required accessories such

as nut bolts, etc. confirming to IS specification 8794/ 1988 or it;s latest revision, if

any suitable for use with A.C. pressure pipe, delivery of joints including it;s

accessories including loading, unloading, carting, stacking, insurance, all taxes,

octroi, etc. complete.

Joints as per site requirement shall be supplied by the contractor. The Joints should be

as per standard and shall be got approved by the Engineer in charge before being used.

The Joints should be perfectly in working condition and having necessary threads holes

etc. as per standard.

Joints should be as per IS standard specification and should be price make. All the

Joints should be suitable for PVC pipes for which it is being used.

1. The payment shall be made on No. basis as per Payment schedule.

ITEM NO. 5 Providing and supplying C.I. Air valves of approved make & quality of

following class and diameter including all taxes, insurance, transportation, freight

charges, octroi, inspection charges, loading, unloading, conveyance to departmental

stores, stacking etc. complete

25 mm dia Double acting Air valve

ISI mark C.I. Air valve shall be supplied by contractor.

Necessary bolts, nuts, rubber packing tools and plant shall be supplied by the contractor

without any extra cost.

The valve shall be fixed to the entire satisfaction as directed by Engineer in charge

Necessary excavation and refilling shall be done by agency at own cost.

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Medium duty G.I. pipe of 3.00 mtr. Length with required coupling or flange at both ends of

the pipe shall be brought by agency at own cost.

Necessary fitting of Air valve pipe shall be done by agency at own cost. Proper fixing must

be done. If leakage found, the same will be rectify by agency.

After laying GI pipe The raised G.I. pipe protected with RCC in CC 1:2:4 column of

mtr dia. size & 2.40 mtr height with base footing of 0.60 X 0.60 X 0.60 mtr at bottom with

required additional excavation incl. bolts, rubber packing, form work etc. complete.

Payment shall be made on Number basis.

Item No.:-6 Excavation for pipe line trenches for water supply, sewerage line,

manhole etc. all with shoring and struting if required as per required gradient and

line including safety provisions using site rails and stacking excavated stuff

including up to all required lead cleaning the site etc. complete for lifts and strata

1.1 The excavation for trenches will generally, refer to open excavation for trenches in

wet / dry conditions for pipe laying work.

2.0 CLEARING OF SITES:

2.1 The site on which the pipelines are to be laid and shown on plan and the area

required for setting out and other operations shall be cleared and all obstruction loose

stones and materials, rubbish of all kinds, stumps, brushwood as trees shall be removed

as directed the roots shall be entirely grubbed up.

2.2 The products of the clearing to restocked in such a place and in such a manner, as

directed by the engineer in charge.

2.3 In jungle clearings, all trees not specially marked for preservation, bamboo’s jungle

wood and brushwood shall be cut down their roots grubbed up. All wood and materials

from the clearing shall be the property of the Board shall be arranged as directed by the

Board Engineer or his authorized agent, the material pronounced as useful by the

Engineer will be conveyed and properly stacked as directed within the specified limit.

Unless materials will be burnt or otherwise disposed of as directed.

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2.4 All holes or hollows whether originally existing or produced by digging up roots,

shall be carefully filled up with earth, well earth, well rammed levelled off, as may be

3.0 SETTING OUT:

The center lines of all pipe trenches etc. shall be given by the Engineer-in-charge and it

will be the responsibility of the contractor to install substantial reference marks, bench

marks, etc. and maintain then as long as required true to line, level curve and slopes. The

contractor shall assure full responsibility for alignment, and dimension of trench.

The labour materials etc. required for setting out and establishing benchmarks and other

reference marks shall be arranged by the contractor at his own cost.

4.0 EXCAVATION:

4.1 The excavation incl. Bailing out of water for the pipe trenches shall also incl.

Removal of all materials of whatever nature and whether wet or dry condition necessary

for laying of pipelines exactly in accordance with alignment, levels grades and curves

shown on the plans or as directed by the Engineer-in-charge. Trenches shall be excavated

to the exact width and depth according to the size of pipe and the sides shall be left

vertical as for as possible or according to the angle of repose various soils. Unless there is

a specific extra provision in the contract for shoring and strutting or for cutting side slopes

the contractor shall at his own cost do the necessary shoring and strutting or cutting of

slopes to a safe of repose or both approved by the Engineer-in-charge. The contractor shall

notify the Engineer before starting excavation to enable him to take cross sectional levels

for purpose of measurements before the ground is disturbed. The bottom of the trenches

shall be levelled both longitudinally and transversely or slopped as directed by the

Engineer. The contractor shall at his own cost to remove such portions of boulders or

rocks, as are rectified to make the bottom of the trench level. No filling shall be allowed to

bring the trench to level. If by contractor’s mistake excavation is made deeper than shown

on the plans and if ordered by the Engineer the extra depth shall have to be made with

selected excavated stuff only with watering, remedying etc. as directed, by the Engineer

and at the cost of the contractor. Other hard excavation shall be cleared of all sorts and

loose materials and cut to firm surface, either level, stepped as directed by the Engineer.

The Engineer may order such charges in the dimensions and alignment of pipe trench as

may be deemed necessary to secure satisfactory cover over pipeline. The contractor shall,

at his own expense, make provision for bailing out of draining water and the trenches

shall be kept free of water, during laying work.

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After each excavation is completed, the contractor shall notify the Engineer to that effect

and no laying of pipeline will be allowed to laid until Engineer has approved the depth and

dimensions of trenches level and measurements.

5.0 SHORING AND STRUTTING:

Shoring & strutting and dewatering if required shall have to be carried out by the

contractor, for which any extra charge will not be paid

During excavation if water connections, sewage connections, telephone lines khalkuwa

(soak pits) etc. are damaged by the contractor, the same shall have to be restored by the

contractor without any extra payment.

6.1 The trenches shall be strongly fenced and red light signal shall be kept at night and

arrangement of watchman to prevent accidents should be done, sufficient care protective

measure shall be taken to see that the excavation shall not affect or damage the adjoining

structure. The contractor shall be entirely responsible for any injury to life and damage to

the properties etc. Necessary protection work such as guide ropes, crossing places,

barricades, caution boards etc. shall be provided by the contractor.

7.0 The excavation in all sorts of soil, hard murrum, soft rock or hard rock or any type

of soil shall have to be carried out up to the required depth by the agency

8.0 DISPOSAL OF EXCAVATED STUFF

8.1 No excavated stuff from trench are to be placed even temporarily nearer than

meter or greater distance up to 90 meter or as prescribed by the Engineer from the outer

edge of trench. All excavated material will be the property of the board. The rate of

excavated includes sorting out of useful materials and stacking then separately as directed

within specified lead. The excavated stuff suitable and useful for refilling or for other use

shall be stacked at convenient places. The materials not useful in any wet shall be

disposal off as directed by the Engineer from the outer edge of trench.

8.2 The site should be cleared off on completion of work.

9.0 ADDITIONAL REQUIREMENTS

At the joints of pipes, the trench shall be excavated to an additional depth of 15 cm. and

width of 30 cm. And length of 15 cm. beyond the edge of collar on both the sides or as

directed. The rate includes for such extra excavation made at the joints. The trenches

shall be excavated perfectly in straight line. The bottom of the trench shall be kept as per

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invert level or as directed. To maintain the proper slope the usual method of site rails and

boning rods shall be adopted. The contractor shall have to provide and fix and maintain

sight rails and boning rod without any extra cost.

If the contractor fails or makes delay to give hydraulic test of the pipe line laid in any of

the section, without any genuine reason, he shall be responsible to get any part of the

length trenches refill in such case i.e. before tasting for safety of pedestrian and/or

vehicular traffic as found necessary by the engineer-in-charge without any extra cost. If

found necessary any directed by the Engineer-in-charge. The contractor shall have to

excavate the refilled trenches, during hydraulic test without any extra cost.

At all road crossings, trenches shall be excavated only for half width of the road and pipe

shall be laid. The other half shall be excavated only after back filling over the laid pipeline

is done so as to make it suitable for the traffic. The contractor shall provide direction when

the pipeline is to be laid along the road as required and shall maintain the diversion or

any part of it, without any extra cost. At all road crossings, the pipe shall be laid below the

9.2 The contractor shall break the road surface by excavation chiselling to the exact

width and length as shown on the drawing or as directed by the Engineer-in-charge.

The excavated stuff shall be deposited in uniform layers to avoid mixing with other kind of

materials at non-objectionable place or as directed by the Engineer-in-charge.

10.1 Excavation in excess of the sanctioned dimensions shall not be measured not paid

for and if an ordered by the Engineer the contractor shall have to fill up the excess depth

with excavated stuff with watering ramming etc. (Completed as specified) for trench

without any extra payment to the contractor.

10.2 The item of excavation shall include unless and otherwise mentioned.

(a) Clearing of site

(b) Setting out work including all materials and labour.

(c) Providing and subsequently removing, shoring and strutting outing

(d) Excavation and removal and staking of all excavated stuff as directed.

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(e) Necessary protection including labour materials equipment etc. to ensure safety

and protection against risk or accident.

(f) Providing facilities for inspection and damage to property if caused during progress

(g) Compensation for injury to life and damage to property if caused during progress of

(h) Restoring of water supply connections, sewer connections, telephone

lines, khalkuwa soapiest etc. if damaged by contractor without extra

(i) Dewatering of excavated pit trench during the progress of work.

(j) Clearing the site on completion of works directed by the Engineer.

UNIT OF RATE: The unit of rate shall be per Cum.

Item No.:- 7 Lowering, laying and jointing PVC pipes and specials of following class

and diameter including cost of conveyance from stores to site of works including

cost of labour, material, except cement solvent, giving satisfactory hydraulic testing

as per ISI code.

Pipe and fittings shall be lifted from manufacturing site to site of work at his own cost.

During transportation any damage shall be occure to pipes for fittings the replacement of

pipes or fittings given by the contractor at-least own cost.

Before laying the pipes it shall be brushed throughout the length so that dust or soil can

be removed. The fittings should also be brushed. The pipes shall be laid in trenches in

The jointing material such as coupling & Solution etc. to be supplied by the contractor.

All the specials such as bends, tees, reducers etc. shall be fixed as per instruction of

engineer-in-charge in the pipeline. The pipe shall be hydraulically tested during the testing

no leakage shall be observed. If leakage observed, it shall be set right by the contractor at

its own cost as per the instruction of Engineer-in-charge.30% payment shall be made after

hydraulic testing of pipe line.

Payment shall be made on running metre basis.

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Item No- 8 Lowering, Laying & Jointing in position following ISI mark CI D/F Sluice

Valves, Butterfly Valves & Reflux Valves of following class and diameter including all

taxes, insurance, transportation, freight charges, octroi, inspection charges, loading,

unloading, conveyance to departmental stores, stacking, all labour, jointing

material, including nut bolts and giving satisfactory hydraulic testing etc. complete.

Sluice valves with ISI mark only (A1) PN-1 With hand wheel /cap operated (PD type

(1) 100 mm dia C.I.D.F. Sluice valve Class PN-1.

(2) 160 mm dia C.I.D.F. Sluice valve Class PN-1.

1.The work shall be carryout as per the description of the item and as per specification

laid down in PWD Hand book vol. I & II and instruction of Engineer in charge.

2.The sluice valve shall be of approved quality and as per ISS 780 OR latest revision with

ISI mark with hand wheel. Rate including necessary freight loading unloading, carting,

insurance & all taxes etc. complete.

3.Sluice valve and should be procured from the approved and ISI marked.

4.For sluice valve necessary jointing materials such as nuts bolts rubber packing shall

have to be supplied by the contractor without extra cost. It shall be fixed as per the

instruction of Engineer in charge.

5. No leakage shall be observed if observed shall be rectified by the contractor without any

The payment shall be made on number basis

Item No- 9 Refilling the pipeline trenches incl. ramming, watering, consolidating

desposal of surplus stuff as directed within a radius of 3 km.

The work shall be carried out as per the description of the item in Schedule-B & as per the

specification laid down in P.W.D. handbook vol. I & II.

The excavated earth shall be used after getting approval of the Engineer in charge proper

consolidation and watering shall be done.

The payment shall be made on Cum basis.

ITEM NO. 10 Construction of valves chambers in brick or bela stone masonry, locally

available in C. M. 1:6. Foundation concrete 150 mm thick in C. C. 1:4:8 of trap

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metal size 25 mm to 40 mm thick, inside cement plaster in C. M. 1:3 and cement

pointing outside in C.

M. 1:3 and top cover of precast RCC slab 100 mm thick (with key hole in two parts,

each with handles or MS Bar etc. complete as given size) Upto 1 Mt. depth from G. L.

to pipe invert level incl. complete civil works but excl. cost of excavation and

refilling, with cast in situ RCC slab in one single piece with fixing of CI-MH Frame

and cover (excl. cost of CI-MH Frame and cover) with 23 mm thick brick masonry

wall in C.M.1:6

size of chamber 0.90 X 0.90 m and 1 Mt. deep with precast slab in two parts.15mm

size of chamber 0.60 X 0.60 m and 1 Mt. deep with precast slab in two parts.15mm

Materials such as Cement, sand, coarse aggregate, bricks, reinforcement, water etc. to be

used for this work shall be confirming to specification laid down in material section.

Chamber shall be constructed at places approved by the Employer’s Representative.

Where valves are provided for maintenance of the pipeline.

Excavation / P.C.C.

Excavation, shoring, dewatering/ P.C.C. etc. for the pits of chambers, laying of pipes and

fittings/specials shall be done in accordance with Employer’s Requirements described

elsewhere in the document.

The bed concrete 150 mm thick for chamber shall be done in C.C. 1:4:8 as directed by the

Engineer-in-charge using trap metal of 25 mm to 40 mm.

Bricks used for construction of manholes shall conform to the relevant Indian Standards.

They shall be sound, hard, and homogeneous in texture, well burnt in kiln without being

vitrified, table moulded, deep red, cherry or copper coloured, of regular shape and size and

shall have sharp and square and parallel faces. The bricks shall be free from pores, chips,

flaws or humps of any kind. Bricks containing ungrounded particles, which absorb water

more than 1/6th of their weight when soaked in water for twenty-four hours, shall be

rejected. Over burnt or under burnt bricks shall be liable to rejection. The bricks shall give

a clear ringing sound when struck and shall have a minimum crushing strength of

kg/sq.cm. The class and quality requirements of bricks shall be as laid down in IS:

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The size of the brick shall be 23.0 x 11.5 x 7.5 cm. unless otherwise specified; but

tolerance up to 3 mm in each direction shall be permitted. Only full-size brick shall be

used for masonry work. Brick bats shall be used only with the permission of Employer’s

Representative to make up required wall length or for bonding. Sample bricks shall be

submitted to the Employer’s Representative for approval and bricks supplied shall

conform to approved samples. If required by the Employer’s Representative, brick sample

shall be tested as per IS: 3495 by Contractor. Bricks rejected by the Employer’s

Representative shall be removed from the Site within 24 hours.

Mortar for masonry shall be as per IS: 2250. Chambers shall be constructed in brick

masonry with cement mortar (1:6) unless otherwise specified. Gauge boxes for sand shall

be of such dimensions that one bag containing 50 kg. of cement forms one unit. The sand

shall be free from clay, shale, loam, alkali and organic matter and shall be of sound, hard,

clean and durable particles. Sand shall be as approved by the Employer’s Representative.

If required by the Employer’s Representative sand shall be thoroughly washed till it is free

of any contamination.

For preparing cement mortar, the ingredients shall first be mixed thoroughly in dry

conditions. Water shall then be added and mixing continued to give a uniform mix of

required consistency. Cement mortar shall be used within 25 minutes of mixing. Mortar

left unused in the specified period shall be rejected.

The Contractor shall arrange for tests on mortar samples if so required by Employer’s

Representative. Re-tempering of mortar shall not be permitted.

All bricks shall be thoroughly soaked in clean water for at least one hour immediately

before being laid. The cement mortar for brick masonry work of Chambers shall be in the

proportion specified in drawing. Brick work 230 mm thick and over shall be laid in

English Bond unless otherwise specified. 115 mm thick brick work shall be laid with

stretchers. For laying bricks, a layer of mortar shall be spread over the full width of

suitable length of the lower course. Each brick shall be pressed into the mortar and

shoved into final position so as to embed the brick fully in mortar. Bricks shall be laid

with frogs uppermost.

All brickwork shall be in plumb and square/ circular unless otherwise shown on drawing

and true to dimensions shown. Vertical joints in alternate courses shall come directly one

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over the other and be in line. Horizontal courses shall be levelled. The thickness of brick

courses shall be kept uniform. For walls of thickness greater than 230 mm both faces

shall be kept in vertical planes unless otherwise specified. All interconnected brickwork

shall be carried out at nearly one level so that there is uniform distribution of pressure on

the supporting structure and no portion of the work shall be left more than one course

lower than the adjacent work. Where this is not possible, the work shall be raked back

according to bond (and not saw toothed) at an angle not exceeding 45 degrees. But in no

case the level difference between adjoining walls shall exceed

1.25 M. Workmanship shall conform to IS:

Brick shall be so laid that all joints are well filled with mortar. The thickness of joints shall

not be less than 6 mm and not more than 10 mm. The face joints shall be raked to a

minimum depth of 12 mm by raking tools daily during the progress of work when the

mortar is still green, so as to provide a proper key for the plastering to be done. When

plastering is not required to be done, the joints shall be uniform in thickness and be

struck flush and finished at the time of lying. The face of brickwork shall be cleaned daily

and all mortar droppings removed. The surface of each course shall be thoroughly cleaned

of all dirt before another course is laid on top. If mortar in the lower courses has begun to

set, the joints shall be raked out to a depth of 12 mm before another course is laid.

All joints in masonry shall be raked to a depth of 12 mm with hooked tool made for the

purpose when the mortar is still green and in any case within 48 hours of its laying. The

surface to be rendered shall be washed with fresh clean water free from all dirt, loose

material, grease etc. and thoroughly wetted for 6 hours before plastering work is

commenced. Concrete surfaces to be rendered will however be kept dry. The wall should

not be too wet but only damp at the time of plastering. The damping shall be uniform to

get uniform bond between the plaster and the wall.

The proportion of the cement mortar shall be as approved on relevant drawings. Cement

shall be mixed thoroughly in dry condition and then just enough water added to obtain a

workable consistency. The quality of water, sand and cement shall be as per relevant I.S.

The mortar thus mixed shall be used immediately and in no case shall the mortar be

allowed to remain for more than 25 minutes after mixing with water.

Curing of plaster shall be started as soon as the applied plaster has hardened enough so

as not to be damaged. Curing shall be done by continuously applying water in a fine spray

and shall be carried out for at least 7 days.

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Plastering shall be done on inner face of brick masonry in cement mortar (1:3) and 15 mm

thick unless otherwise specified.

Cement pointing in C: M (1:3) shall be done on outside the chamber including racking out

joints, curing etc. complete as directed by the engineer-in-charge.

Cement Concrete Block

The C.C. blocks for the chamber shall be constructed in cement concrete of M15 grade to

take care of weight of valves.

Pipe Entering or Leaving Chamber

Whenever a pipe enters or leaves a chamber, bricks on edge must be cut to a proper form

and laid around the upper end of the pipe so as to form an arch. All around the pipes,

there shall be a joint of cement mortar (1:2) 13 mm thick between it and the bricks.

Precast Reinforced Cement Concrete Slab with key holes

Precast Reinforced cement concrete top slab shall be casted in pieces for covering the

chamber. Necessary keyholes shall be provided at appropriate place for operation of

spindle of valve. The minimum thickness of slab shall be 100mm and same shall be casted

in C.C. of M20 grade. The required reinforcement shall be provided. The top & bottom

surface of precast slab shall be finished with cement mortar 1:3.

Measurement and Payment

Measurement shall be paid on number basis as per payment schedule.

Extra depth of valve chamber. beyond 1.00 mt. depth.

The work shall be measured and paid for additional meter depth of chamber beyond 1.0 m

depth. The work in general shall be carried out as per instructions & approval of engineer

ITEM NO. 11 Providing and laying ordinary cement concrete 1:2:4 (1- Cement 2-

coarse sand : 4- graded stone aggregates 20 mm nominal size) and curing complete

excluding the cost of formwork in (A) Foundation and plinth (more than 10 ton

1.The work shall be carried out as per the description of the item and as per the

specification laid down in PWD hand book vol. I & II (Revised) and as per the

instruction of engineer in charge.

2. The proportion of the concrete shall be one part of an approved quality Portland cement

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four parts of sand and eight parts of coarse aggregate by volume.

3.The sand shall be course angular sharp free from any impurities such as foreign

materials dirt, dust etc.

4. Coarse aggregates shall be of black trap stone. It shall be hard angular. It shall be free

from any impurities, such as dirt, dust or any foreign materials. The size of the coarse

aggregates shall be of 6mm to 20mm size.

5. The cement shall be of approved quality ISI mark Portland cement for RCC work. The

make shall be as approved by E.I.C.

6. The ingredient shall be mixed on water tight platform in dry condition and potable

shall be added & water cement ratio is to be maintained as per I.S 450-1980 / it

revise Addition in required quantity to achieve desired workability of mix. The mixing shall

be done the by machine mixer.

7. The necessary centering and form work shall have to be provided by the contractor

without any extra cost. It must be leak proof T & P articles required for the job shall

have to be brought by the contractor without any extra cost.

8. The work shall be carried out in such a way as to get the smooth surface without

requirement of plaster. During concreting, consolidation shall be done by the using the

needle vibrator.

The payment shall be made on Cumt. basis.

ITEM NO. 12 Lowering, laying & jointing in position C.I/ D.F Sluice valves and air

valves including cost of all labour, jointing material, including nut bolts and giving

satisfactory hydraulic testing etc. comp.

1.The work shall be carryout as per the description of the item and as per specification

laid down in PWD Hand book vol. I & II and instruction of Engineer in charge.

2.The Air valve shall be of approved quality and as per ISS 780 OR latest revision with ISI

mark with hand wheel. Rate including necessary freight loading unloading, carting,

insurance & all taxes etc. complete.

3.Air valve and should be procured from the approved and ISI marked.

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4.For air valve necessary jointing materials such as nuts bolts rubber packing shall have

to be supplied by the contractor without extra cost. It shall be fixed as per the instruction

of Engineer in charge.

5.No leakage shall be observed if observed shall be rectified by the contractor without any

The payment shall be made on number basis

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MECHANICAL SPECIFICATION

Supply of horizontal mono submersible pump 3 Phase 400 / 440 V, 50 C/s AC supply and 2900 RPM IS:

MOC: Casing- CI FG 260, Impeller: Bronze LTB II, Shaft: S.S. 410 of following capacity as per GWSSB's

specifications.

13 Q: 720 LPM, H @ 25 Mts, Minimum 10 HP

18 Q: 360 LPM, H @ 24 Mts, Minimum 5.5 HP

Supply of DOL / Star Delta starter suitable for local & remote pump control application consisting of MPCB,

overload relay and contactors as per Type II coordination including digital voltmeter, analogue ammeter with

selector switch, run hour meter, required protective relays & control accessories of following capacities as

per GWSSB's specifications

Supply of PVC insulated flat submersible cable as per detailed technical specifications of GWSSB conforming

Supply of ISI mark GI pipes with coupling of following class & diameter.

11.1 80 mm Dia Heavy Duty

Supply of GI fittings & specials viz bends, flanges, threaded tappers, nipples, coupling, reducers etc of

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Supply of CI double flanged reflux valve as per IS 5312 of PN 1.0 rating with ISI mark.

21.2 100 mm Dia

Providing & fitting KitKat pattern porcelain cut out with base (each set of 03) of 63 amperes current capacity

suitable to 500 V to be erected on 01 wooden board of required size with hardware etc..

Supply & erection of ELCB / RCCB conforming to IS: 12640 and having sensitivity of 30 mA and short circuit

withstand capacity of 6 KA and suitable for operation on 3 phase and neutral 415 V having characteristic of

quick action & tripping with all advance feature & do not incorporate any electronic component for following

Providing & fitting pipe type earthing having 150 cm long and 25 mm dia GI pipe with coupling & buch buried

in specially prepared earth pit complete with necessary 8 SWG GI earth wire including using charcoal / coke

and salt in required quantity.

Installation, testing & commissioning of horizontal mono submersible pump set including lowering, laying of

GI pipe line, fitting of valves, control panel board including testing etc. complete with all required hardware,

jointing & other sundry materials.

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GENERAL TECHNICAL CONDITIONS & REQUIREMENTS

1 SCOPE OF CONTRACT

1.1 This specification covers the manufacturing, testing at manufacturer’s site, delivery at site, unloading,

handling and storage at site, complete erection, final checkup painting, testing and commissioning of three

phase horizontal mono block submersible pumping machineries at various villages with electrical &

mechanical equipments like control panel, power and control cable wiring and grounding (earthing), valves,

discharge pipe, and associated accessories to be supplied under this contract to achieve a guaranteed

performance coordinated with commercial conditions of the contract to the entire satisfaction of GWSSB.

1.2 Any minor / hidden item of work either supply and / or erection of materials / equipment which have not

been specifically mentioned in the specifications but are necessary to complete the work for trouble free and

efficient operation and guaranteed performance of the entire plant / system / equipment offered shall deemed

to be included within the scope of this contract and shall be provided by contractor without any extra cost to

1.3 The project information is indicated in the enclosed specification. It is advisable that the bidder should

visit the site (s) and apprise himself of all the site conditions prior to preparing the bid.

2 EQUIPMENTS AND SERVICES TO BE INCLUDED BY CONTRACTOR UNDER THESE

SPECIFICATIONS:

2.1 Mechanical and electrical works required at various villages.

2.2 Pumping machineries at various villages with all the accessories as per specifications and data sheets.

Discharge G. I. pipe work including fittings from sump to ESR, HGLR and / or direct distribution is in to the

vendor's scope as indicated by the GWSSB with necessary pipe support etc shall be included in the offer.

2.3 C. I. Sluice Valves, reflux / check / non return valves etc. as per specifications. The individual delivery of

each pump shall be provided with Sluice Valves & reflux (NRV) valves with velocity in delivery piping and

valves limited to maximum 2.5 meter / second.

2.4 Pressure gauges Glycerin filled with siphon & cock arrangement of suitable range as per specifications

with installation.

2.5 415 Volt cubical control panels etc. as per specifications.

2.6 Power and control cables etc as per specifications and requirement for the pumping stations.

2.7 Earthing (Grounding) systems for the pumping stations as per specification and requirement.

2.8 L. T. electrical wiring with XLPE Aluminum armoured cable & PVC insulated flat submersible copper

cable including lugs etc.

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2.9 The contractor shall take the responsibility for all the testing and inspections at manufacturer's works to be

conducted in manner as specified in this specification in the presence of GWSSB's representative. No charges

towards arranging such inspection shall be paid separately to the contractor. The third party inspection shall be

carried out by the designated TPI jointly in the presence of the GWSSB’s representative. The inspection

charges for such TPI agency shall initially be borne by the contractor, which shall be reimbursed by GWSSB

on production of money receipt i. e. documentary evidence.

2.10 Transportation of all equipments packed in the specified way from the manufacturer’s works to the

project site inclusive of all intermediate handling.

2.11 Unloading of equipments from railway wagons / trucks at site handling and proper storing at site (s) in

the approved way under security.

2.12 Opening of package, checking, tallying, sorting out and inspection of equipment received at the site (s)

and lodging of insurance claims if any.

2.13 Taking delivery of equipments / materials from contractor’s site stores, transportation to erection site. If

erection is delayed the contractor shall arrange for proper storage of the equipment / material in proper way.

2.14 Erection, inspection, testing start up and running of the equipment and complete plant at guaranteed

2.15 Erection of pipe and valves including all necessary hot deep GI bolts, nuts, sleeves, insert plates

etc to complete the piping system.

2.16 Furnishing all erection and commissioning supervision service. The contractor shall also arrange for

maintenance of equipment during guarantee and commissioning period.

2.17 The contractor shall also arrange technical expert of equipment from proprietary supplier to site as and

when felt necessary until the commissioning guarantee run of the plant is completed.

2.18 In case of change in the motor rating depending on the efficiency, the ratings of the associated

electrical equipments shall be modified accordingly.

2.19 Initial filling of oil lubricants, grease etc for the equipment.

2.20 Complete list of commissioning and maintenance spares parts for first 12 months trouble free operation

and maintenance of the mechanical and electrical equipment.

2.21 Complete list of recommended spare parts for two years operation and special tools and tackles for

erection and regular operation and maintenance of the mechanical and electrical equipment shall be

furnished as per schedule of spare parts and accessories tools.

2.22 Required Nos. of all relevant drawings, Data and instruction manuals.

2.23 All ancillary work as per price bid.

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2.24 Any item of work either supply and / or erection of material equipment which have not been

specifically mentioned in the specification but if necessary to complete the work for trouble free and

efficient operation and performance of the entire plant / system / equipment offered, shall deemed to

be included within the scope of his contract and shall be provided by contractor without any extra

cost to the GWSSB.

It is the intention of the GWSSB to achieve coordinated effect among all the activities viz. civil,

mechanical & electrical. The installation of machinery is linked up with civil construction of pumping station

testing and commissioning work is linked up with the obtaining of electrical connection / power.

GWSSB no doubt will be doing his best to see that these inter connected activities are completed at

appropriate time. However, contractor is not entitled for any claim, escalation of whatsoever for

commissioning at a date later than the stipulated time. Necessary extension of time will be granted in case if it

is established that the erection / testing / commissioning could not be achieved in stipulated time on account of

reasons beyond the control of contractor. This factor should be carefully noted as no claim whatsoever nature

will be entertained on an account of such situations.

The contactor has to furnish guarantee for all the equipments supplied by him for complete pumping station

for a period of 12 months from the date of handing over the pumping station to GWSSB / concerned Gram

The contractor has to furnish the BAR – Chart & PERT Chart for the pumping station and the same followed

strictly so as to commence the pumping station as per the schedule.

CO ORDINATION BETWEEN DIFFERENT AGENCIES

It is the responsibility of the contractor to co ordinate with different agencies i.e. sub supplier and civil

contractor so as to commissioning the pumping station in scheduled time.

EQUIPMENT & SERVICE TO BE EXCLUDED FROM THIS PORTION OF THE CONTRACT

Rising main beyond the vendor's scope of supply.

Construction of the pumping station and M.C.C. Room.

THIRD PARTY INSPECTION

Inspection and testing of the major electro - mechanical equipments such as Horizontal Mono

Submersible pumping machineries, Cubical Control Panels and Valves shall be carried out by third party

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inspection agency in the presence of GWSSB's representative (i.e. jointly) at manufacturers’ works. QAPs

along with manufacturers’ cross sectional drawings, characteristic curves (if any), material (s) of construction

etc. for three phase horizontal mono submersible pumps, cubical control panels, SLV & NRV shall have to be

submitted by the bidder & get them approved prior to their procurement invariably. For all other items like

XLPE Al cable & flat PVC copper cables, GI - MS pipes with specials, pressure gauge etc. internal test /

quality / calibration certificates shall have to be furnished for review / acceptance.

4.1 That the equipment installed complies with specification in all particulars and is of the correct rating for

the duty and site conditions.

4.2 That all items operate efficiently and quietly to meet the specified requirements.

4.3 That all non current carrying metal work is properly and safely grounded in accordance with the

specifications.

The contractor shall provide all necessary instruments and labour for testing and shall make adequate

records of test procedures and readings, shall repeat any tests requested by the consultant / GWSSB

and shall provide test certificates signed by a properly authorized person such test certificates shall

Cover all works.

4.4 If tests fail to demonstrate the satisfactory nature of the installation or any part thereof then no claims for

the extra cost of modifications, replacements, or retesting will be considered. GWSSB's decision as to what

constitutes a satisfactory test shall be final. The above general requirements as to testing shall be read in

conjunction with any particular requirements specified elsewhere.

5 GWSSB reserves right to ask for the corporate guarantee from any or all the bidder for the performance

and overall completeness in accordance to GWSSB’s requirements. Specifically, for in time completion of

contractual works in accordance to the technical requirements in best workmanship manner.

5.1 GWSSB reserves the right to spilt the work / distribute the works among bidders.

5.2 GWSSB reserves the right to accept or reject the tenders with technical deviation, at the

discretion of competent authority.

GENERAL SPECIFICAITONS FOR SUPPLY OF EQUIPMENTS

This part covers conditions pursuant to the contractor and will form an integral part of the contract. The

following provisions shall supplement general conditions, detailed specification and requirements.

2. LIMIT OF CONTRACT

Equipments furnished shall be complete in every respect with all mountings, fittings, fixtures and standard

accessories normally provided with such equipments and / or needed for erection, completion and safe

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operation of the equipments as required by applicable codes though they may not have been specifically

detailed in the technical specification, unless included in the list of exclusions. All similar standard

components / parts of similar standard equipments provided shall be interchangeable with one another.

3. ENGINEERING DATA

3.1 The contractor shall furnish complete engineering data of each set of equipment such as name of

manufacturer, the type of model of each principal item of equipment proposed to be furnished and

erected in the annexure, standard catalogues, design, the specification number and the name of the

project. If the standard catalogue pages are submitted the applicable items shall be indicated there in.

All titles, noting, markings, and writing on the drawing shall be in English. All dimensions should be

in metric units.

3.2 All manufacture fabrication works in connection with equipment prior to the approval of the

drawing shall be at the contractor's risk. The contractor may make any changes in the design which

are necessary to make any equipment confirm to the provisions and intent of the contract and such

changes will again be subject to the approval by the GWSSB. Approval the contractor's drawing or

works by the GWSSB shall not relieve the contractor from any of the responsibility and liabilities

under the contract.

3.3 Drawings shall include all installation and detailed piping drawings wherever applicable. All

piping 100 millimeter and larger shall be routed in detail and smaller pipe shall be shown

schematically or by isometric drawings. All drawings shall be fully corrected to agree with actual "As

Built" construction.

4. DESIGN IMPROVEMENTS

4.1 GWSSB may propose changes in the specification of the equipment or quality thereof and if the

parties agree upon any such changes the specification shall be modified accordingly.

4.2 If any such agreed upon change is such that it affects the price and schedule of completion, the

party shall agree in writing as to the extent of any change in the price and / or schedule of

completion before the contractor proceeds with the change. The following such agreement provision

thereof shall be deemed to have been amended accordingly.

5. The following documents shall be sent by registered post to the GWSSB by contractor within

days from the date of dispatch, to enable the GWSSB to make progressive payments to the

INVOICE (6 copies)

PACKING LIST ( 6 copies )

TEST CERTIFICATE ( 3 copies )

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5.1 The contractor shall prepare detailed packing list of all packages and containers, bundles & loose material

forming each and every consignment dispatched to site. The contractor shall further be responsible for making

all necessary arrangements or loading, unloading and other handling right from his work till the site and also

till the equipment is erected, tested and commissioned. He shall be solely responsibility for proper storage and

safe custody of all equipments.

5.2 All fine, rental, demurrages, warfare and other expenses incurred due to delayed clearance of the material

or any other reason shall be to the account of the contractor.

6. PROTECTION TO PLANT

6.1 All coated surface shall be protected against abrasions impact, discolorations and any other

damages. All exposed threaded portion shall be suitably protected with either a metallic or non-

metallic protecting device. All ends of all valves and piping and conduit equipment connections shall

be properly sealed with suitable device to protect them from damage. The parts which are likely to

get rusted due to exposure to weather, shall also be properly treated and protected in a suitable

7. MATERIALS HANDLING AND STORAGE

7.1 All the equipment furnished under the contract and arriving at the site shall be properly received,

unloaded, transported and stored in the storage spaces by the contractor at his cost.

7.2 Contractor shall be responsible for examining all the dispatches and notify the GWSSB

immediately of any damage, shortage, discrepancy etc for the purpose of the GWSSB information

only. The contractor shall submit to the GWSSB every week a report detailing all the receipts during

the work. However the contractor shall be solely responsible for any shortages or damage in transit,

handling and / or in storage and erection of the equipment at the site.

7.3 The contractor shall maintain and accurate and exhaustive record detailing out the list of all

equipment received by him for the purpose of erection and keep such record open for the inspection

of the GWSSB at any time.

7.4 All equipment shall be handled very carefully to prevent any damage or loss. No bare wire

ropes, string etc shall be used for unloading and/or handling of the equipment stored shall be properly

protected to prevent damage either to the equipment or to the floor where they are stored. The

equipment from the store shall be moved to the actual location of the appropriate time so as to avoid

damage of such equipment at site.

7.5 All electrical panels, motors and such other devices shall be properly dried by heating before

they are installed and energised. Motor bearings, slip rings, commutates and other exposed parts shall be

protected against moisture ingress and corrosion during storage and shall be periodically inspected. Heavy

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rotating parts is assembled conditions shall be periodically rotated to prevent corrosion due to prolonged

All the electrical equipment, such as Motors etc shall be tested for insulation resistance at least once in

three months from the date of receipt till the date of commissioning and record of such measured insulation

values maintained by the contractor. Such records shall open for inspection by the GWSSB.

7.6 The consumables and other supplies likely to deteriorate due to storage must be thoroughly

protected and stored in a suitable manner to prevent damage or deterioration in quality by storage.

7.7 All the materials stored in the open or dusty location must be covered with suitable water proof

and flame proof covering material wherever applicable.

7.8 The contractor shall be responsible for making suitable indoor storage facilities to store all

equipments which require indoor storage. Normally all the electrical equipment, such as motors and

consumable like electrodes, lubricants, etc shall be stored in the closed storage space. The GWSSB in

addition may direct the contractor to move certain other materials which in GWSSB opinion will

require indoor storage, to indoor storage areas which the contractor shall strictly comply with.

8. CONTRACTOR'S MATERIALS AT GWSSB SITE

8.1 The contractor shall bring to site (s) all equipment, component, parts, materials including construction

equipments, tools and tackles for the purpose of the works under intimation to the GWSSB all such

goods from the time of their being brought shall not on any account be removed or taken away by

the contractor or his subcontractor without the written permission of the GWSSB. The contractor shall

nevertheless be solely liable and responsible for any loss or destruction thereof and damage thereto.

8.2 The GWSSB shall have the lien on such goods for any sum or sums which may at any time be due to

owing to him by the contractor, under in respect of or by reasons of the contract. After giving a fifteen (15)

days notice in writing of his intention to do so, the owner shall be at liberty to sell and dispose of any such

goods in such as be shall think fit including public auction or private treaty and to apply the proceeds in

or towards the satisfactions of such or sums due as aforesaid

After the completion of the works, the contractor shall remove from the site under the direction

of the purchaser the materials such as construction equipments, erection tools, and tackles scaffolding

etc with the written permission of the GWSSB. If the contractor fails to remove such materials

GWSSB to do so then the GWSSB shall have the liberty to dispose of such materials and credit the

proceeds thereof to the account of the contractor.

9. FACILITIES TO BE PROVIDED BY THE GWSSB

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The contractor shall advice GWSSB within fifteen (15) days from the date of acceptance of the

letter of intent, about his exact requirements of space for storage area, pro-assembly and fabrication

areas etc. The above requirement shall be reviewed by the GWSSB and land if available will be

given to the contractor for construction of his temporary structures like storage shed etc for his own

as well as his sub use. It will not be binding to owner GWSSB to spare the land if not available.

In that case contractor shall have to make his own arrangements. The material once supplied shall have

to be stored and preserved by agency up till the commission. Agency may deploy the person to protect the

materials supplied by agency at their own cost.

10. CONSTRUCTION MANAGEMENTS

10.1 Time is the essence of the contract and the contractor shall be responsible for performance of his

works in accordance with the specified construction schedule. If at any time the contractor is falling

behind schedule, he shall make necessary action to make good for such delays by increasing his

work force or by working overtime or over wise accelerate the progress of the work to comply with

the schedule and shall communicate such action in writing to the GWSSB satisfying that his action

will compensate for the delay . The contractor shall not be allowed any extra compensation for such

11. CONTRACTOR’S CO OPERATION WITH THE GWSSB

In case where the performance of the erection work by the contractor, the operation of the

system facilities of the GWSSB such erection work of the contractor shall be scheduled to be

performed only in the manner stipulated by GWSSB and the same shall be acceptable at all times to

the contractor. The GWSSB may impart such restrictions on the facilities if provided to the contractor such

as electricity, water etc as the GWSSB may think fit in the interest of itself and the contractor. The

contractor shall strictly adhere to such restrictions and cooperate with the GWSSB. It will be the

responsibility of the contractor to provide all necessary temporary instrumentation and other measuring

devices required during the start-up and operation of equipment systems which are erected by him.

Before commissioning of any machine all old lubricants, greases etc shall be thoroughly removed, the

part cleaned of all deleterious material and shall be freshly lubricated by sealed lubricants, of exact

specifications.

12. CO OPERATION WITH OTHER CONSTRUCTIONS & FOR GWSSB

The contractor shall agree to cooperate with the GWSSB other contractor and consultants of GWSSB and

freely exchange with them such technical information and economical design features to avoid unnecessary

duplication of efforts .The contractor shall attend design coordination meetings at his own cost whenever

13. FIELD OFFICE RECORDS

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13.1 The contractor shall maintain at his site office up to date copies of all drawings specifications and

other contract documents and any other supplementary data complete with all the latest revisions thereto.

The contractor shall also maintain in addition, the continuous records of all changes to the above contract

documents, drawings, specifications, supplementary data etc. affected at the field and on completion of his

total assignment under the contract shall incorporate all such changes on the drawings and other

engineering data to indicate as installed conditions of the equipments furnished and erected under the

contract. Such drawings and engineering data shall be submitted to the GWSSB in required number of

14. DESIGN COORDINATION

14.1 The contractor shall be responsible for the selection and design of appropriate equipments to

provide the basic coordinated performance of the entire system. The design requirements are detailed out

in technical specifications. The design of various components, sub assemblies and assemblies shall be done,

such that it facilities easy field assembly and maintenance. All the relating components shall be so

selected that the natural frequency of the compact unit is not critical at or close to the operating

range of the unit.

15. QUALITY ASSURANCE PROGRAMME

To ensure that the equipment and services under scope of this contract whether manufactured or

performed within the contractor's work or at his sub contractor's premises or at the owner's site or at any other

place of work are in accordance with the specifications. The contractor shall adopt suitable quality assurance

programme to such activities at all points necessary. Such programme shall be outlined by the contractor

and shall be finally accepted by the purchaser after discussions before the start of contract, and such

agreed programme shall form part of the contract.

16. DEFECTS IN WORK OF OTHER CONTRACTOR

16.1 The GWSSB shall be notified promptly by the contractor of any defects in the other contractor works,

the GWSSB shall determine the corrective measures if any required to rectify this situation after joint

inspection work and such decision by the GWSSB shall be binding on the contractor.

17. UNFORSEEN WORKING CONDITIONS

17.1 The contractor shall confirm all his field operations to those works which can be performed

without subjecting the equipment and materials to adverse effects, during inclement weather

conditions, monsoon, storms etc and during other unfavorable construction conditions. No field

activities shall be performed by the contractor under conditions which might adversely affect the

quality and efficiency thereof, unless special precaution or measures are taken by the contractor in a

proper and satisfactory manner in the performance of such works and with the concurrence of the

purchaser. Such unfavorable construction conditions will in no way relieve the contractor from his

responsibility to perform the works as per schedule.

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18. PROTECTIVE GUARDS.

18.1 Suitable guards shall be provided for protection of personal on all exposed rotating and / or moving

machine parts. All such guards with necessary spaces and accessories shall be designed for easy

installation and removal for maintenance purposes.

19.1 If the manufacture has special requirement relating to the welding procedures for welds at the terminals

of the equipment to procedure procured by the owned separate specifications. The requirement shall be

submitted to the GWSSB in advance of commencement of erection work.

20. NOISE AND VIBRATIONS

20.1 The equipment supplied and erected by the bidder will comply with best design and erection and its

working shall be within permissible noise and vibration levels.

21. EQUIPMENT BASES

21.1 A cast iron or welded steel base plate shall be provided for all rotating equipment which is to

be installed on a concrete base unless otherwise agree by the GWSSB each base plate shall support

the unit and its drive assembly shall be of a neat design with anchoring the units.

22. SHAFT ALIGNMENTS

All the shafts of rotating equipment shall be properly aligned to these of the machine equipments

to as perfect and accuracy as practicable. The equipment shall be free from excessive vibration so as

to avoid over heating of bearing or other conditions which may tend to shorten the life of the

equipment. All bearings shafts and other rotating parts shall be thoroughly cleaned and suitable

lubricated before starting.

All the drive motors and other equipment shall suitable dowelled after alignment of shaft with

tapered machine dowels as per direction of the GWSSB.

All exposed metal parts of the equipments including piping, structures railings etc. wherever

applicable after installation unless otherwise specified shall be surface protected and shall be first

painted with primer paint, after thoroughly cleaning all such parts of all dirt, rust, greases, oils and

other foreign materials by wire brushing, scraping or sand blasting and the same being inspected and

approved by the Board for painting. Afterwards the above parts shall be finished with two coats of

alloyed resin machinery enamel paints. The quality of the finished paints shall be as per standards of

BIS or equivalent and shall be of the shade & colour approved by the GWSSB

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25. COLOUR CODE FOR PIPE SERVICES

25.1 All pipe services wherever applicable are to be painted accordance with the owner's standard

colour scheme by the contractor.

26. LUBRICATION

Equipments shall be lubricated by system suitable for duty of the equipment. Lubricant level

indicators wherever provided shall be furnished and parked to indicate proper levels under both

standstill and operating conditions.

27. FIRST FILLING OF CONSUMABLES OIL AND LUBRICANTS:

All the first fill of consumables such as oils, lubricants and essential chemicals etc. which will be required

to put the equipment covered under the scope of the specifications into successful trial operation. They shall be

furnished by the contractor unless specifically excluded under the in these specification and

CHECKOUT CONTROL SYSTEMS:

After completion of wiring and cable furnished under separate specifications and laid as per the terms noted

by the board the contractor shall check out the operation of all control system for the equipments

furnished and installed under these specification and documents.

28. EQUIPMENT PERFORMANCE GUARANTEE

The performance guarantees of the equipments under the scope of the contract are detailed separately in

the technical specifications. These guarantees shall supplement the general performance guarantee provisions

covered under general terms and conditions.

In the event of any emergency where in the judgment of the Board, delay would cause serious loss or

damage, repairs or adjustments may be made by the GWSSB or a third party chosen by the GWSSB without

notice to the contractor or by surety. In the event such action is taken by the purchaser the contractors will be

notified promptly and he shall assist whenever possible in making the necessary corrections. This shall not

extinguish the contractor's liability under the terms and conditions of the contractor.

The cost of any special or general overhaul rendered necessary during the maintenance period due to the

defect in the plant or defective work carried out the contractor the same shall be borne by the contractor.

In case of this effective parts which are not repairable at site but are essential for the

commercial operation of the equipment, the contractor and the GWSSB shall naturally agree to a

programme of replacement of renewal which will minimize interruption to the maximum extent, in to

operation of the equipment. At the end of guarantee period the contractors liability except for the

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latest defects in respect of goods supplied by sub contractor to the contractor where a longer

guarantee (More than 12 months) is provided by sub - contractors, the owner shall be entitled to the

benefit of such longer guarantee. Then provisions contained in this clause will not be applicable.

If the owner has not operated the equipment according to generally approved industrial practices

and in accordance with the conditions of operation specified and in accordance the operating manuals,

30. RECOMMISSIONING TRIALS - TESTS START – UP

On completion of erection of the equipment and before start up each items of the equipment shall be

thoroughly cleaned and then inspected jointly by the GWSSB and the contractor for correctness and

completion of installation and acceptability for start up, loading to initial pre-commissioning tests at site.

The list of pre-commissioning tests to be performed shall be as mutually agreed and include in the contractor's

quality assurance programme. The contractors commissioning / start up board specifically identified as far as

possible and the contractor shall be responsible for carrying out all pre-commissioning tests. On completion of

inspection checking after pre-commissioning tests are satisfactorily over, the complete shall be placed on

initial operation during which period the complete equipment shall be operated integral with sub systems and

supporting equipments as complete plant.

31. TRIAL OPERATION

The plant shall then be on trial operation during which period all necessary adjustments shall made while

operating over the full load-range enabling the plant to be made ready for performance and guarantee tests.

The duration of trial operation of the complete equipment should be thirty (30) days from the date of

successful testing & commissioning of all the equipments. The trial operation shall be considered successful

provided that each item of equipment can operate continuously at the specified operating characteristics, for

the period of trial operation.

For the period of trial operation, the time of operation with any load shall be counted. Minor interruptions

not exceeding two (2) days at a time caused during the continuous operation shall not affect the total

during of trial operation.

However, if in the opinion of the, purchaser, the interruption is long, the operation shall be prolonged for

the period if interruption. A trial report comprising of observations and recordings of various parameters to be

measured in respect of the above trial operation shall be prepared by contractor. This report, besides recording

the details of the observation during trial run shall also including the dates of starts and finish of the trial

operation and shall be signed by the representative of both the parties.

The report shall have sheets, recording all the details of interruptions occurred adjustment made and any

minor repairs done during the trial operation, based on the observation necessary modification / repairs to the

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plant shall be carried out by the contractor to the full satisfaction of the GWSSB, to enable the latter on to

accorded permission to carry out performance and guarantee tests on the plant.

32. PERFORMANCE AND GUARANTEE TEST

32.1 The final test as to the performance and guarantees shall be conducted at site (s) by the GWSSB. The

contractor shall make the equipment ready for such tests and assist the GWSSB conducting such tests free of

cost, such test shall be commenced after the successful completion of trial operation.

32.2 These trends shall be binding on both the parties of the contract to determine compliance of the

equipment with the performance guarantee.

32.3 The available instrumentation and control equipment will be used during such tests and the GWSSB will

calibrate all such measuring equipment and devices as far as practicable. However, immeasurable parameters

shall be taken into account in a reasonable manner by the G.W.S.S.B, for the requirement of these tests. The

tests will be conducted for the specified duty and as near to the specified conditions as practicable. The

GWSSB will apply proper correction in calculation to take into account condition, which should not

correspond to the specified condition.

32.4 Any special equipment, tools tackles required for the successful completion of the performance and

guarantee tests shall be provided by the contractor, free of cost.

32.5 The guaranteed performance figure of the equipments shall be provided by the contractor during

these performance and guarantee cost should the results of these tests show any depressed from the

guaranteed values, the contractor shall modify the equipments as required to enable them to meet the

guarantees. In such case performance and guarantee tests shall be repeated one month, from the date of

equipment is ready for re-tests and all cost for modification including labour materials and the cost of

additional testing prove that the equipment meets the guarantees shall be borne by the contractor.

32.6 The specific tests to be conducted on equipments have been brought out in the technical specifications.

32.7 Performance and guarantee tests shall make allowance for instrumentation error as may be

decided by the GWSSB.

33. REGISTRATION AND STATUTORY INSPECTION:

33.1 All registration and statutory inspection fees if any in respect of this work pursuant to this contract shall

be to the account of the contractor. However, any registration statutory inspection fees lawfully payable

under the provision of statutory laws and its amendments from time to time during erection in respect of the

plant equipment ultimately to be owned by the owner shall be to account of the owner. Should any such

inspection or registration need to be rearranged due to the fault of the contractor or his sub-contractor the

additional fees for such inspection and / or registration shall be borne by the contractor.

34. WORKS AND SAFETY REGULATION

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34.1 The contractor will notify the GWSSB of his intention to bring on the site any equipment or

any container with liquid or gaseous fuel or other substance which may create hazard. The GWSSB

shall have the right to prescribe the conditions for up keep of such hazardous materials.

Before the contractor connects any electrical appliances to any plug or socket belonging to the

other contractor or owner he shall:

Satisfy the Engineer in charge of GWSSB that the appliance is in good working conditions.

(b) Inform the GWSSB of the maximum current rating voltage and phases power factor the appliances.

(c) Obtain permission of the Board detailing the sockets to which the appliances may be connected.

34.2 The GWSSB shall not grant permission to connect until it is satisfied that

(a) The appliance is in good condition and is fitted with suitable plug

(b) The appliance is fitted with a suitable cable having two earth conductors, one of which shall be

earthed metal sheet surrounding the cores.

34.3 No electrical cable in use by the contractor / GWSSB shall be disturbed without prior permission.

No weight of any description will be placed on any such cable and no ladder or similar equipment

will rest against or be attached to it, under which such equipment or container may be handled and used

during the performance of the work and the contractor shall strictly adhere to such instruction. The

GWSSB shall have the right to inspect any construction plant and to forbid its use if in its opinion it

is unsafe. No claims due to such prohibition shall be entertained by the GWSSB.

34.4 Where it is necessary to provide and / or store petroleum products petroleum mixtures and explosives, the

contractor shall be responsible for carrying out such provision and / or storage in petroleum Act

explosives Act 1948 and petroleum inspector of Explosives of India. All such storage shall have prior

approvals of the GWSSB in case any statutory authority the contractor shall be responsible for

obtaining the same.

35. ELECTRICAL SAFETY REGULATIONS:

35.1 In no circumstances shall the contractor interfere with fuse and electrical equipment belonging to

the GWSSB or other contractors.

35.2 No work shall be carried out on any live equipment. The equipment shall be made safe by the GWSSB

and a permit to work be issued before work is carried out.

35.3 The contractor shall employ the necessary number of qualified full time electricians to maintain

temporary electrical installation.

GENERAL REQUIREMENTS (ADDITIONAL)

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1. Employer’s Drawings (if any)

1.1. The drawings listed in the tender document are the Employer’s drawings and are provided by the

Employer as illustrative of the specification.

1.2. All data and information furnished in the drawings by the Employer is given in good faith but the

Employer does not accept the responsibility for the completeness and accuracy thereof. The same shall be

verified by the contractor promptly pointing out errors or discrepancies thereof to the Engineer.

2. Drawings Furnished by the Employer (if any)

2.1. The contractor shall carefully check all drawings and / or instructions furnished by the Engineer in charge

(EIC) before commencing any work, and shall inform the EIC in writing, within a day from the receipt of the

same, of any errors or omissions discovered, or of the difficulty to execute any works or part thereof in

compliance with these drawings and / or the written instructions received from the EIC. Failing to do this, he

shall be liable to execute at his own cost the necessary alterations to any works resulting from these errors or

2.2. The contractor will be furnished with 2 copies of any such drawings prepared by the Engineer. The

contractor will also be furnished with two copies of all instructions as may be issued by the Engineer. One

copy of all such drawings and instructions issued to the contractor shall be kept in his office at the site. No

drawing or instruction shall be considered valid unless it has been signed by the Engineer.

3. Drawing Sheet Format

3.1. All drawings provided by the contractor shall be on standard size sheets, prepared on computer with Auto

Cad 14 and shall show the following particulars in a title block located in the lower right hand corner, in

addition to the name of contractor and equipment manufacturer, date, scale, drawing number, revision number

(R0 for drawings submitted initially, R1, R2, etc. for drawings submitted subsequently) and title:

Gujarat Water Supply & Sewerage Board / Name of Project: Regional Water Supply Scheme

A blank space of 90 mm x 100 mm shall be provided for the Engineer’s approval stamp and provision shall be

made for details of revisions to be recorded.

3.2. All drawings submitted by the bidder / contractor shall use the English language and preferably SI units.

All drawings shall be clearly and fully cross referenced to the other drawings as relevant.

4. Tender / Contract Drawings

4.1. Drawings submitted by the bidder shall show all the essential items of the plant offered together with

sufficient details to enable the general arrangement of the Plant to be determined.

4.2. The outline dimensional drawings submitted by the contractor shall include the following in addition to

overall dimensions:

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Parameters of equipment

Support details

Foundation pocket details

4.3. The drawings to be provided by the Bidder / Contractor shall include the following, but shall not be

limited to those listed:

(* Indicates the drawings/documents to be submitted)

Sr. Description To be To be submitted after

No. submitted the award of the

with the Contract

Outline Dimensional Drawing

1 Pumping Machinery (Horizontal mono submersible) *

2 Induction motor with separate terminal box for:

(a) Line / Neutral side terminals with phase segregation

(b) Resistance temperature detectors

Cross Sectional Drawing with Materials of Construction

2 Motor for above *

3 Pump Performance curves at rated RPM : Q Vs H, *

4 Q Vs H curves super-imposed on system resistance *

5 Performance Test Records of pumps (same as the *

6 Pump ISO efficiency Curve *

7 Starting Current Vs time *

8 Characteristics under cold and hot conditions *

5. Submission and Approval of Drawings

5.1. The following shall be the procedure for submission and approval of drawings:

5.1.1. The contractor shall submit 3 copies of the drawings to the Employer. All the drawings are to be

signed by the contractor or his authorized representatives

5.1.2. The EIC will review the drawings and, if found fit for approval, the Employer will return 2 copies to

the contractor duly approved.

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5.1.3. In case the drawings / documents are not fit for approval but worth for review, the EIC will mark the

comments on the drawings and return 2 copies to the contractor. In such case, the contractor shall resubmit the

revised drawings within two weeks as per sub clause 5.1.1 above and the same shall be repeated till the

drawings are finally approved as per sub clause 5.1.2 above.

5.1.4. If the submitted drawings / documents are not worth for review, the contractor will be informed

5.1.5. On receipt of the approved drawings as per sub clause 5.1.2 above, the contractor shall submit floppy

and documents to the employer.

5.1.6. After tests on completion, the contractor shall submit, within 15 days of the conclusion of the tests,

CD’s of the “As Built Drawings” to the Employer.

5.2. When the drawings are received by the EIC after revision by the contractor, he will only review the

revision made and hence the contractor shall carefully identify all the revised details / dimensions and also

describe the revisions in the revision block.

5.3. No drawings, with corrections made after taking the prints, will be accepted.

5.4. Approval of drawings by the Engineer shall not relieve the contractor of his responsibility in terms of the

6. Operation and Maintenance Manuals

6.1. The operation and maintenance manuals shall be arranged to provide separate volumes for each

principal section of the Works and they shall relate to as built conditions and shall include all necessary

drawings and diagrams for a proper understanding of the works.

6.2. The operation and maintenance manual shall be approved in draft form initially prior to

commencement of erection by the EIC and shall cover all items of the Works. For this purpose, three draft

copies shall be submitted to the EIC. A mere collection of manufacturers’ descriptive leaflets will not be

acceptable in satisfaction of this clause. The operation and maintenance manual shall comprise both operating

instructions and maintenance instructions.

6.3. The manuals shall include, but not be limited to the following information:

6.3.1. Descriptive overview of the whole of the works.

6.3.2. Descriptions of all systems installed, including mechanical, electrical, instrumentation, control

systems with relevant design and operating parameters.

6.3.3. Descriptions of all equipment supplied including manufacturers’ leaflets, which shall be scheduled for

easy reference.

6.3.4. Schedules and manufacturers’ catalogues for all equipment supplied, giving duties, electrical load, etc.

6.3.5. Schedules of all equipment suppliers (and their local agents) including names, addresses, telephone &

facsimile numbers and e-mail ID.

6.3.6. Start up, operation and shut down instructions for all parts of the works. These shall include step by

step directions on setting the plant to work listing all adjustments and settings necessary for the current

functioning of the plant.

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6.3.7. Instructions on monitoring of plant performance and sample log sheets for each plant item, to be filled

by operators on a routine basis.

6.3.8. “Dos” and “Don’ts” in plant operation: Operator’s attention shall be drawn to all operations

considered to be dangerous to operators or likely to cause damage to the plant.

6.3.9. Procedures to deal with breakdown and emergencies

6.3.10. Safety requirements

6.3.11. Checking, testing and replacement procedures to be carried out on all plant items on a daily weekly

and monthly basis or at longer intervals to ensure trouble free operation. Full maintenance instructions for all

equipment including planned maintenance schedules or charts giving daily, weekly, monthly, quarterly, half

yearly, annual overhaul instructions together with recommended lubricants and spares. These shall also

include details of routine maintenance work that will be within the competence of the normal maintenance

staff and notification of maintenance work that will have to be done by the manufacturer, his agent or other

specialist operator.

6.3.12. Fault locations and remedy charts to facilitate tracing the cause of malfunctions or break down and

correcting faults.

6.3.13. Complete list of recommended lubricants and lubrications charts.

6.3.14. A ‘spares schedule’ which shall consist of a complete list of item wise spares for all plant items with

ordering references and part numbers.

6.3.15. A complete list of manufacturer’s instructions for operation and maintenance of all bought out

equipment. The list shall be tabulated in alphabetical order giving the name of supplier / manufacture,

identification of the Plant item giving the model number and the literature provided including instruction

leaflets and drawing numbers.

6.3.16. Step by step procedure for the dismantling, repair and re assembly of all items of equipment.

6.3.17. Part list and drawings or exploded diagrams for each item of plant with construction particulars,

materials of construction, mating components, clearances and tolerances, maximum wear permitted before

replacements are to be done, etc

6.3.18. Record drawings of all systems installed, including general arrangements, conduit and wiring,

trunking systems, wiring diagrams, control schematics and valve charts etc. to a reduced scale.

6.4. The contractor shall furnish 3 copies of the Operation and Maintenance Manual for each station. Each

volume shall be durable and permanently bound within a stiff binder of a design to be approved by the

Employer. They shall permit the subsequent incorporation of revisions to be necessary during the defect

liability period.

7. Protection and Packing for Transportation

7.1. Before any plant is dispatched from manufacturer’s works it shall be properly prepared and packed

and the contractor shall give the Employer at least 14 days notice that these preparations are to commence.

7.2. Prior to dispatch the plant shall be adequately protected by painting or by other approved means for

the whole period of transit, storage and erection, against corrosion and incidental damage, including the effects

of vermin, sunlight rain, high temperatures and humid atmospheres. The contractor shall be responsible for the

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plant being so packed and / or protected as to ensure that it reaches the Site intact and undamaged. The plant

shall be packed to withstand rough handling in transit and all packages shall be suitable for storage including

possible delays in transit.

7.3. The contractor shall be deemed to have included in the schedule of prices for all materials and packing

cases necessary for the safe package, conveyance and delivery and storage of the plant with all protective and

preservation measures.

7.4. Cases containing rubber rings, bolts and other small items shall not normally weigh more than 50 kg gross

per case. No one package or bundle shall contain items of plant intended for incorporation in more than one

section of the works. All items of plant shall be clearly marked for identification against the packing list.

7.5. Eye bolts, lifting hooks and brackets shall be provided for lifting the boxes, crates and packages. Every

crate or package shall contain a packing list in a waterproof envelope. A duplicate copy of the packing list

shall be sent by post to the EIC at site.

7.6. All crates, packages, etc. shall be clearly marked with a waterproof material to show the weight and where

the slings should be attached, and shall also have an indelible identification mark relating them to the packing

lists. Packing cases shall be nonreturnable. Contractor shall have to clear the site including packing material.

7.7. Electrical equipment shall be enclosed in sealed air tight package with hygroscopic material, before being

placed in packing cases on shock absorbent materials and secured by means of battens.

8. Delivery, Unloading and Storing at Site

8.1. The Contractor shall be responsible for checking all materials delivered to site (s) and shall keep the

EIC or his representative fully informed of the state of deliveries. The contractor shall carry out, at his cost, all

instructions of EIC for proper unloading, preservation, maintenance, storage and security of materials

delivered to site until he fulfills all his obligations under the contract.

8.2. The contractor shall erect and maintain on the site (s) any temporary storage facility as required and

approved by the EIC. If built up shed or area is provided by the Employer depending upon availability, the

contractor shall have to pay rent as finalized by the EIC.

8.3. Multiple handling and movement of materials during storage and retrieval shall be avoided.

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MATERIALS AND WORKMANSHIP

1. Introduction

1.1. This part of the specification sets out the general standards of materials to be supplied and the

workmanship required to be ensured by the contractor. All component parts of the works shall, unless

otherwise specified, comply with the provisions of this part or be subject to the approval of the Employer.

Particular attention shall be paid to a neat, orderly and well arranged installation carried out in a methodical

competent manner.

2. Reference Specifications and Standards

2.1. Where reference is made in the Specification to a British Standard Specification (hereinafter

abbreviated to `B.S’) issued by the British Standards Institution of 2, Park street, London W.I., or to an Indian

Standard Specification (I.S.) issued by the Bureau of Indian Standards, (earlier known as Indian Standard

Institution), Manak Bhavan, 9 Bahadur shah Zafar Marg, New Delhi 110 002, or American Society for Testing

and materials (ASTM) issued by ASTM 1916 Race Street, Philadelphia, P.A., 19103, U.S.A. or American

national Standards Institute (ANSI) issued by ANSI 1430, Broadway, New York, N.Y., 10018, U.S.A. or

Japanese Industrial Standards (JIS) issued by Japanese Standards Association, 4-1-24, Akasaka, Minato-Ku,

Tokyo 107, Japan or to any other equivalent Standard it shall be to the latest revision of that Standard at the

tender opening date.

2.2. The contractor may propose at no extra cost to the Employer, the use of any relevant authoritative

internationally recognized Reference Standard.

2.3. All details, materials and equipment supplied and workmanship performed shall comply with the

specified Standards. If bidder offers equipment to other Standards, the equipment / material should be equal or

superior to those specified and full details of the difference shall be supplied.

2.4. In the event of conflict between this specification and the codes for equipment, provisions of this

specification shall govern. Certain specifications issued by national or other widely recognised bodies are

referred to in this specification. In referring to the Standard Specifications the following abbreviations are

IS : Indian Standard

ANSI : American National Standards Institute

API : American Petroleum Institute

ASME : American Society of Mechanical Engineers

ASTM : American Society of Testing and Materials

AWS : American Welding Society

AWWA : American Water Works Association

ISO : International Organization for Standardization

DIN : Deutsches Institute fur Normung

BS : British Standard

IEC : International Electrotechnical Commission

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IEE : Institution of Electrical Engineers

IEEE : Institute of Electrical and Electronic Engineers

NEMA : National Electrical Manufacturers Association

AGMA : American Gear Manufacturer’s Association

3. Materials General

3.1. All materials incorporated in the works shall be the most suitable for the duty concerned and shall

be new and of reputed make / approved quality, free from imperfections and selected for long life and

minimum maintenance. Non destructive tests, if called for in the Specification, shall be carried out. All

submerged moving parts of the plant, or shafts and spindles or faces etc. in contact with them shall be of

corrosion resistant materials. All parts in direct contact with various chemicals, shall be completely resistant

to corrosion, or abrasion by these chemicals, and shall maintain their properties without aging due to the

passages of time, exposure to light or any other cause.

4. Workmanship General

4.1. Workmanship and general finish shall be of first class quality and in accordance with best

workshop practice.

4.2. All similar items of the plant and their component parts shall be completely interchangeable. Spare

parts shall be manufactured from the same materials as the originals and shall fit all similar items. Machining

fits on renewable parts shall be accurate and to specified tolerances so that replacements can be readily

installed. All equipment shall operate without excessive vibration and with minimum noise. All revolving

parts shall be truly balanced both statically and dynamically so that when running at normal speeds at any load

up to the maximum there shall be no vibration due to lack of balance.

4.3. All parts which can be worn or damaged by dust shall be totally enclosed in dust proof housings.

All materials incorporated in the works shall be the most suitable for the duty concerned, free from

imperfections and selected for long life and minimum maintenance. All necessary accessories required for

satisfactory and safe operation of the plant shall be supplied by the contractor unless it is specifically excluded

from his scope. Suitable provision by means of eyebolts or other means are to be provided to facilitate

handling of all items that are too heavy or bulky for lifting and carrying by two men.

4.4. If, after installation, the operation or use of the materials or equipment furnished by the contractor

proves to be unsatisfactory. The Employer shall have the right to operate or use such materials or equipment

until correction of defects, errors or omissions, by repair or by partial or complete replacement, can be made

without interfering with the plant operations. Except for any warranty provided for elsewhere in this contract

or unless otherwise agreed upon in advance, the period of such operation or use, pending correction of defects,

will not exceed 1 year.

5.1. Welding shall comply with the latest revision of the BS 5135 Code.

5.2. Welders shall be qualified in accordance with the requirement of the appropriate section of BS

4871. The Engineer shall have the right to call for further qualification from time to time from any welder

who in the opinion of the EIC does not produce weld in accordance with the qualification. Each welder shall

be assigned a number and letter. Each welded end shall clearly be identified as to its welder marking the

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welder’s code adjacent to the welds. A record chart shall be maintained for each welder showing the

procedures, for which he has qualified, the date of such qualification, the type of defects produced and their

frequency. The EIC shall disqualify the welder whose work requires a disproportionate amount of repairs. All

procedures where required shall be qualified as per BS EN 283-3.

5.3. Inspection and quality of surveillance shall not be limited to the examination of finished welds.

The techniques employed shall be based on methods which are known to produce good results and which have

been verified at Site by actual demonstration.

5.4. Haphazard striking of the electrodes for establishing an arc shall not be permitted. The arc shall be

struck either on the joint or on a starting tag. The starting tag shall be of the same material or a material

compatible with the base metal being welded. In case of any inadvertent strike on place other than the welding,

the area affected shall be ground flushed and examined by liquid penetration method.

5.5. Generally, a stringer bead technique shall be used with a slight oscillation of necessary to avoid

slag and to minimize the number of beads needed to fill exceed 3 times the wire diameter. Vertical welds shall

be made in upward direction. For all pipes above 300 mm dia., welding shall be done whenever possible, by

welders working simultaneously along both sides of the pipe.

5.6. The root pass shall have less than 1.5 mm internal reinforcement. Defects like icicles, burn through

and excessive “such back” etc. shall be cause for rejection of welds.

5.7. Final welds shall be suitable for appropriate fabrication of the non-destructive examination of the

weld. If grinding is necessary, the weld shall be blended into the parent metal without gouging or thinning of

the parent metal in any way. Uneven and excessive grinding may be a cause for rejection. Fillet weld shall

preferably be convex and free from undercutting and overlap at the toe of weld. Convexity and concavity shall

not exceed 1.5 mm. The leg lengths shall not exceed the specified size by more than 1.5 mm.

5.8. All attachments such as lugs, brackets and other non pressure parts shall also be done by qualified

welders in accordance with the design details and materials specifications. Temporary attachments shall be

removed in a manner that will not damage the parent metal. Areas of temporary attachments shall be dressed

smooth and examined by ultrasonic or liquid penetration methods.

5.9. All tack welds shall be made using qualified procedure and welders, the number of size of tack

welds shall be kept as small as to consist of adequate strength and joint alignments. All tack welds shall be

examined visually for defects and if found defective shall be completely removed. As welding proceeds, tack

welds shall be either removed completely or shall be properly prepared by grinding or filling their starting

ends so that they may be satisfactorily incorporated in the welds. Unacceptable defects shall be removed by

grinding machine or chipping or gouging. Flame gouging may be permitted provided gouged surfaces are

ground at least by 1.0 mm below the deepest indentation.

5.10.All weld repairs shall be carried out using the approved welding procedures and welders. Re welded areas

shall be reexamined by the methods specified for the original welds and repair procedures shall be duly

qualified by the EIC’s representative.

6. Pre heating and Post heating Treatment

6.1. Pre heating and post heating treatment shall conform to the relevant application codes. Preheating

not exceeding 1210 C for all carbon steel construction above 25 mm thickness would be mandatory. Such pre

heating would be maintained during flame cutting, flame or arc gouging, welding and repairs and may be

done by gas heating by gas torches / gas rings with neutral flame. The temperature shall be checked by

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temperature indicating crayons. However, such pre heating will not be necessary for welds less than 6 mm

size. In large diameter pipe fabricated out of plate materials, production control test plates in accordance with

the BS 4870 part 1 Table 6 to represent 30 % of the long seams and each welder’s performance would be

7.1. All electrodes shall be stored in their original sealed containers under dry conditions. Electrodes

shall remain identified until consumed. All electrodes shall be dried before use. Drying ovens shall be

provided in work areas for drying purposes. Electrodes withdrawn from oven shall be promptly used and

excess unused electrodes shall be promptly returned to oven.

8. Examination / NDT / Radiography

8.1. The various stages of examination and types shall be as stipulated in the respective fabrication

Codes. Radiographic examination shall be carried out as per provisions of BS 2600 or BS 2910. Ultrasonic

tests where called for shall be carried out as per provisions of BS 3926, magnetic particle tests shall be carried

out as per BS 6072. Liquid penetration tests shall be carried out as per BS

9. Stainless Steel Welding

9.1. All welding consumable such as electrodes, filler weirs, argon gas for shielding and purging shall

be of high quality and the proposed brand shall be furnished for approval of the EIC. Weld deposits shall have

similar or higher physical properties and similar chemical composition to the members joined.

9.2. All electrodes shall be purchased in sealed containers only and stored in their packing intact. The

packets opened shall be consumed as early as possible. The electrodes removed from the containers shall be

kept in holding ovens at temperatures recommended by electrode manufacturer. Special care shall be taken in

avoiding mixing of electrodes in the oven. The electrodes and filling wires shall be free from rust, oil, grease,

earth and other foreign matter.

9.3. Argon gas with purity 99.5 % shall be used for shielding and purging. The purity of gas shall be

certified by the gas manufacturers.

9.4. Non destructive examination of the welds shall be carried out to ensure quality of weld.

9.5. The electric current for welding shall be direct current, straight polarity (electrode negative). The

welding current shall be kept minimum possible to ensure minimum heat affected zone in the parent material.

Other side of the weld joint shall be periodically flushed with argon gas.

10.1. Cast iron shall be of standard grey close grained quality. The structure of the castings shall be

homogeneous and free from non metallic inclusions and other injurious defects. All surfaces of castings which

are not machined shall be smooth and shall be carefully fettled to remove all foundry irregularities.

10.2. Minor defects in depth not exceeding 12.5 percent of total metal thickness and which will not ultimately

affect the strength and serviceability of the casting may be repaired by approved welding techniques. The EIC

shall be notified of large defects and no repair welding of such defects shall be carried out without prior

approval of the EIC. If the removal of metal for repair should reduce the stress resisting cross section of the

casting by more than 25 percent, or to such an extent that the computed stress in the remaining metal exceeds

the allowable stress by more than 25 percent, then casting shall be rejected. Test coupons cast simultaneously

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with the main castings shall be identified to check physical, chemical analysis of casting. Major defects on

casting are not acceptable. Castings repaired by welding for minor defects shall be stress relieved after such

welding. Non destructive tests as directed by the EIC will be required for any casting containing defects whose

extent cannot otherwise be judged, or to determine where repair welds have been properly made.

11.1. All major stress bearing forging shall be made to a Standard specifications. Forging shall be subjected to

magnetic particle testing or dye penetration test at the areas of fillets and change in section. The testing shall

be conducted after rough machining (10 microns). Any defect which will not machine out during the final

machining, will be gouged out fully, inspected by dye penetration or magnetic particle inspection to ensure

that the defect is fully removed and repaired using an approved repair procedure. Any indication, which proves

to penetrate deeper than 2.5 % of the finished thickness of the component, shall be reported to the EIC giving

the details like location, length, width and depth. For the magnetic particle inspection the choice of wet or dry

particles shall be at the Contractor’s discretion.

11.2. All forging shall be demagnetized after test and shall be heat treated for the relief of residual stresses.

12. Design Life

12.1. The works as a whole shall be new, of sound workmanship, robustly designed for a long reliable

operating life and shall be capable of 24 hours per day continuous operation for prolonged period in the

climatic and working conditions prevailing at the Site, and with the minimum of maintenance. Particular

attention shall be given to temperature changes, the stability of paint finish for high temperatures, the rating of

engines, electrical machinery, thermal overload services, cooling systems and the choice of lubricants for

possible high and prolonged operating temperatures. The contractor shall be called upon to demonstrate this

for any component part either by service records, or evidence of similar equipment already installed elsewhere

or relevant type tests. Routine maintenance and repair shall as far as possible not requires the services of

highly skilled personnel.

12.2. The plant shall be designed to provide easy access to and replacement of component parts which are

subject to wear, without the need to replace whole units. No parts in contact with water shall have a life from

new to replacement or repair of less than five years.

12.3. Design features shall include the protection of plant against damage caused by vermin, dirt, dust and

dampness and to reduce risk of fire. Plant shall operate without undue vibration, and parts shall be designed to

withstand the maximum stresses under the most severe condition of normal service. Materials shall have a

high resistance to change in their properties due to the passage of time, exposure to light, temperature and any

other cause which may have a detrimental effect upon the performance or life of the Works.

12.4. Plant located outside lockable areas / building shall have additional features to prevent unauthorized

13. Lubrication

13.1. A complete schedule of recommended oils and other lubricants shall be furnished by the contractor. The

number of different types of lubricants shall be kept to a minimum. The schedule and the name of the supplier

of the lubricants shall be submitted to the EIC.

13.2. Contractor shall indicate indigenously available equivalent lubricants with complete specification, to

enable the Employer to arrange for regular supply.

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13.3. Where lubrication is effected by means of grease, preference shall be given to a pressure system which

does not require frequent adjustment or recharging. Frequent, for this purpose, means more than once in a

month and grease systems having shorter periods between greasing should be avoided. Where necessary for

accessibility grease nipples shall be placed at the end of the extension piping, and, when a number of such

points can be grouped conveniently, the nipples shall be brought to a battery plate mounted in a convenient

position. All grease nipples shall be of the same size and type for every part of the plant. Arrangements shall

be provided to prevent bearings being overfilled with either grease or oil.

13.4. Where more than one type of special grease is required a grease gun for each special type shall be

supplied and permanently labeled.

13.5. Oil containers shall be supplied complete with oil level indicators of the sight glass type, or where this is

not practicable, with dipsticks. The indicators shall show the level at all temperatures likely to be experienced

in service. The levels shall be clearly visible in the sight glass type from the normal access floor to the

particular item of Plant and they shall be easily dismantled for cleaning. All sight glasses shall be firmly held

and enclosed in metal protection in such manner that they cannot be accidentally dislodged.

13.6. All lubrication systems shall be designed so as not to cause a fire or pollution hazard and particular care

shall be taken to prevent leakage of lubricants and to avoid leaking lubricants coming into contact with any

electrical equipment, heated surfaces or any other potential source of fire.

14.1. Each item of the plant shall have permanently attached to it in a conspicuous position, a nameplate and

rating plate. Upon these shall be engraved or stamped, the manufacturer’s name, type and serial number of

plant, details of the loading and duty at which the item of plant has been designed to operate, and such

diagrams as may be required by the EIC. All indicating and operating devices shall have securely attached to

them or marked upon them designations as to their function and proper manner of use.

14.2. Name plates, rating plates and labels shall be of a non-flame propagating materials, either non

hygroscopic or transparent plastic with engraved lettering of a contrasting colour. Fixing shall be by means of

non corrosive screws, drive rivets or adhesives shall not be used.

14.3. Warning labels shall be provided where necessary to warn of dangerous circumstances or substances.

Inscriptions or graphic symbols shall be black on a yellow background.

14.4. Instruction labels shall be provided where safety procedures such as wearing of protective clothing are

essential to protect personnel from hazardous or potentially hazardous conditions. These labels shall have

inscriptions or graphic symbols in white on a blue background.

15. Nuts, Bolts, Studs and Washers

15.1. Nuts, bolts, studs and washers for incorporation in the plant shall conform to the requirements of the

appropriate standard. Nuts and bolts shall be of the best quality of specified grade, machined on the shank and

under the head and nut

15.2. Fitted bolts shall be a light driving fit in the reamed holes they occupy, shall have the screwed portion of

such a diameter that it will not be damaged in driving and shall be marked in a conspicuous position to ensure

correct assembly at site.

15.3. Washers, locking devices and anti vibration arrangements shall be provided where necessary. Jointing

hardware for the entire Plant shall be provided with sufficient spares to cater for site losses.

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15.4. Where bolts pass through structural members taper washers shall be fitted, where necessary, to ensure

that no bending stress is caused in the bolt. Where there is a risk of corrosion, bolts, nuts and studs shall be

designed so that the maximum stress does not exceed half the yield stress of the material under any conditions.

All bolts, nuts and washers which are subject to frequent adjustment or removal in the course of maintenance

and repair shall be made of nickel bearing stainless steel.

15.5. The contractor shall supply all holding down, alignment and leveling bolts complete with anchorages,

nuts, washers and packing required to attach the plant to its foundations, and all bed plates, frames and other

structural parts necessary to spread the loads transmitted by the plant to concrete foundations without

exceeding the design stresses.

16. Allowance for Wastage

16.1. The contractor shall supply reasonable excess quantities to cover wastage of those consumable which

will be normally subject to waste during erection, commissioning and setting to Work.

17. Painting – General

17.1. The contractor shall be responsible for the cleaning, preparation for painting, and priming or otherwise

protecting, as specified, all parts of the plant at the place of manufacture prior to packing.

17.2. Parts may be cleaned but surface defects may not be filled in before testing at the manufacturer’s works.

Parts subject to hydraulic test shall be tested before any surface treatment. After test, all surfaces shall be

thoroughly cleaned and dried out, if necessary by washing with an approved de-watering fluid prior to surface

treatment. Except where the specification provides to the contrary all painting materials shall be applied in

strict accordance with the paint manufacturer’s instructions.

17.3. All protective coatings shall be suitable for use in warm humid climates. All primers, under coats and

finishes shall be applied by brush or airless spray, except where otherwise specified. Consecutive coats shall

be in distinct but appropriate shades. All paints shall be supplied from the store to the painters, ready for

application, and addition of thinners or any other material shall be prohibited.

18. Painting at Place of Manufacture

18.1. Steel and cast iron parts shall be sand blasted to near white cleaning before painting. Edges, sharp covers

etc. shall be ground to a curve before sand blasting. A primer coat of a zinc rich epoxy resin based coating

with at least 75 microns dry film thickness is to be provided. In addition the parts are to be provided with

adequate number of coats of coal tar epoxy polyamine coating to a dry film thickness of 175 microns including

primer coating.

19. Painting at Site

19.1. Immediately on arrival at the site, all items of plant shall be examined for damage to the paint coat

applied at the manufacturer’s works, and any damaged portions shall be cleaned down to the bare metal, all

rust removed, and the paint coat made good with similar paint.

19.2. After erection, such items which are not finish painted shall be done so and, items that have been finish

painted at the manufacturer’s works shall be touched up for any damaged paint work. For finish painting, two

coats of synthetic enamel conforming to IS: 2932 shall be applied. Dry film thickness of each coat shall be at

least 25 microns.

19.3. The dry paint film thickness shall be measured by Electrometer or other instruments approved by the

Employer. In order to obtain the dry film thickness specified, the contractor shall ensure that the coverage rate

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given by the paint manufacturer will enable this thickness to be obtained. Strength of adhesion shall be

measured with an adhesion tester and this value shall not be less than 10 kg/cm 2. Painted fabricated steel work

which is to be stored prior to erection shall be kept clear of the ground and shall be laid out or stacked in an

orderly manner that will ensure that no water or dirt can accumulate on the surface. Suitable packing shall be

laid between the stacked materials. Where cover is provided, it shall be ventilated.

20. Noise and Vibration

20.1. The Contractor shall provide a quiet installation. All items of plant and equipment shall be carefully

chosen with a view to minimizing sound levels.

20.2. The Contractor shall provide and fix all material for the prevention of transmission of noise and vibration

through the structure. Where appropriate all fans, A/C package unit, compressors and other motif plant shall

be mounted on resilient mountings. All rotating plant shall be statically and dynamically balanced.

21. Galvanizing

21.1. Wherever galvanizing has been specified the hot dip process shall be used. The galvanized coating shall

be of uniform thickness. Weight of zinc coatings for various applications shall not be less than those indicated

a) Fabricated steel

i Thickness less than 2 mm but 340 gms / sq mm

not less than 1.2 mm

ii Thickness 2 mm and above 460 gms / sq mm

i Up to nominal size M10 270 gms / sq mm

ii Over M10 300 gms / sq mm

21.2. Galvanising shall be carried out after all drilling, punching, cutting, bending and welding operations have

been carried out. Burrs shall be removed before galvanizing. Any Site modification of galvanized parts should

be covered well by zinc rich primer and aluminum paint.

22. Support for Pipe work & Valves

22.1. All necessary supports, saddles, slings, fixing bolts & foundation bolts shall be supplied to support the

pipe work. Valve and other equipments mounted in the pipe work shall be supported independent of the pipes

to which they connect.

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DETAILED TECHNICAL SPECIFICATIONS FOR

HORIZONTAL MONO SUBMERSIBLE PUMP MOTOR SET WITH

MECHANICAL and ELECTRICAL EQUIPMENT & ACCESSORIES

1 SCOPE OF CONTRACT

1.1 This specification covers the manufacturing, testing at manufacturer’s site, delivery at site, unloading,

handling and storage at site, complete erection, final check-up painting, testing and commissioning of

three phase horizontal mono block submersible pumping machineries at various villages with electrical &

mechanical equipment like control panel, power and control cable wiring and grounding (earthing),

valves, discharge pipe, and associated accessories to be supplied under this contract to achieve a guaranteed

performance coordinated with commercial conditions of the contract to the entire satisfaction of GWSSB.

1.2 Any minor / hidden item of work either supply and / or erection of materials / equipment which have

not been specifically mentioned in the specifications but are necessary to complete the work for trouble

free and efficient operation and guaranteed performance of the entire plant / system / equipment offered

shall deemed to be included within the scope of this contract and shall be provided by contractor

without any extra cost to the GWSSB.

1.3 The project information is indicated in the enclosed specification. It is advisable that the bidder

should visit the site (s) and apprise himself of all the site conditions prior to preparing the bid.

2 EQUIPMENTS AND SERVICES TO BE INCLUDED BY CONTRACTOR UNDER THESE

SPECIFICATIONS:

2.1 Mechanical and electrical works required at various villages.

2.2 Pumping machineries at various villages with all the accessories as per specifications and data

sheets. Discharge G I pipe work including fittings from sump to ESR, HGLR and / or direct distribution

is in to the vendor's scope as indicated by the GWSSB with necessary pipe support etc. shall be included in

2.3 CI Sluice Valves, reflux / check / non return valves etc. as per specifications. The individual delivery of

each pump shall be provided with Sluice Valves& reflux (NRV) valves with velocity in delivery piping and

valves limited to maximum 2.5 meter /second.

2.4 415 Volt cubical control panels etc. as per specifications.

2.5 Power and control cables etc. as per specifications and requirement for the pumping stations.

2.6 Earthing (Grounding) systems for the pumping stations as per specification and requirement.

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2.7 LV electrical wiring with XLPE Aluminium armoured cable & PVC insulated flat submersible

copper cable including lugs etc.

2.8 The contractor shall take the responsibility for all the testing and inspections at manufacturer's

works to be conducted in manner as specified in this specification in the presence of GWSSB's

representative. No charges towards arranging such inspection shall be paid separately to the contractor.

The third party inspection shall be carried out by the designated TPI jointly in the presence of the GWSSB’s

representative. The inspection charges for such TPI agency shall initially be borne by the contractor, which

shall be reimbursed by GWSSB on production of money receipt i. e. documentary evidence.

2.9 Transportation of all equipment packed in the specified way from the manufacturer’s works to the

project site inclusive of all intermediate handling.

2.10 Unloading of equipment from railway wagons / trucks at site handling and proper storing at site (s) in

the approved way under security.

2.11 Opening of package, checking, tallying, sorting out and inspection of equipment received at the site (s)

and lodging of insurance claims if any.

2.12 Taking delivery of equipment/materials from contractor’s site stores, transportation to erection site. If

erection is delayed the contractor shall arrange for proper storage of the equipment / material in proper way.

2.13 Erection, inspection, testing start up and running of the equipment and complete plant at guaranteed

2.14 Erection of pipe and valves including all necessary hot deep GI bolts, nuts, sleeves, insert

plates etc. to complete the piping system.

2.15 Furnishing all erection and commissioning supervision service. The contractor shall also arrange for

maintenance of equipment during guarantee and commissioning period.

2.16 The contractor shall also arrange technical expert of equipment from proprietary supplier to site as and

when felt necessary until the commissioning guarantee run of the plant is completed.

2.17 In case of change in the motor rating depending on the efficiency, the ratings of the associated

electrical equipment shall be modified accordingly.

2.18 Initial filling of oil lubricants, grease etc. for the equipment.

2.19 Complete list of commissioning and maintenance spares parts for first 12 months trouble free

operation and maintenance of the mechanical and electrical equipment.

2.20 Complete list of recommended spare parts for two years operation and special tools and

tackles for erection and regular operation and maintenance of the mechanical and electrical

equipment shall be furnished as per schedule of spare parts and accessories tools.

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2.21 Required Nos. of all relevant drawings, Data and instruction manuals.

2.22 All ancillary work as per price bid.

2.23 Any item of work either supply and / or erection of material equipment which have not been

specifically mentioned in the specification but if necessary to complete the work for trouble free and

efficient operation and performance of the entire plant / system / equipment offered, shall deemed to

be included within the scope of his contract and shall be provided by contractor without any

extra cost to the GWSSB.

THIRD PARTY INSPECTION

Inspection and testing of the major electro - mechanical equipment such as Horizontal Mono Submersible

pumping machineries, Cubical Control Panels and Valves shall be carried out by PMC / third party

inspection agency (TPI) in the presence of GWSSB's representative (i.e. jointly) at manufacturers’ works.

QAPs along with manufacturers’ cross sectional drawings, characteristic curves (if any), material (s) of

construction etc. for three phase horizontal mono submersible pumps, cubical control panels, SLV & NRV

shall have to be submitted by the bidder & get them approved prior to their procurement invariably. For all

other items like XLPE Al cable & flat PVC copper cables, GI - MS pipes with specials etc. internal test /

quality / calibration certificates shall have to be furnished for review / acceptance.

4.1 That the equipment installed complies with specification in all particulars and is of the correct rating for

the duty and site conditions.

4.2 That all items operate efficiently and quietly to meet the specified requirements.

4.3 That all non-current carrying metal work is properly and safely grounded in accordance with the

specifications.

The contractor shall provide all necessary instruments and labour for testing and shall make

adequate records of test procedures and readings, shall repeat any tests requested by the

consultant / GWSSB and shall provide test certificates signed by a properly authorized

person such test certificates shall Cover all works.

4.4 If tests fail to demonstrate the satisfactory nature of the installation or any part thereof then no

claims for the extra cost of modifications, replacements, or retesting will be considered. GWSSB's

decision as to what constitutes a satisfactory test shall be final. The above general requirements as to

testing shall be read in conjunction with any particular requirements specified elsewhere.

5 GWSSB reserves right to ask for the corporate guarantee from any or all the bidder for the performance

and overall completeness in accordance to GWSSB’s requirements. Specifically, for in time completion of

contractual works in accordance to the technical requirements in best workmanship manner.

5.1 GWSSB reserves the right to spilt the work / distribute the works among bidders.

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5.2 GWSSB reserves the right to accept or reject the tenders with technical deviation, at the

discretion of competent authority.

Following equipment and accessories are to be designed and supplied as per relevant IS

standards and technical specifications described herein at various villages as per quantities

specified in schedule B.

THREE PHASE HORIZONTAL MONO SUBMERSIBLE PUMP SETS

The three phase horizontal mono submersible pump sets for village level water supply scheme

should be as per IS: 14220 / 1994 with latest revision.

The standard specifies the technical requirement for three phase horizontal mono submersible

pump sets commonly used in sump for handling clear cold water for application in water supply.

The duty point of the pump set should be located at the optimum efficiency point of the pump

rating curves and there should not be steep fall in efficiency in the operating range as specified I n

Annexure-VI. The verification of the pump sets performance will be as per relevant latest IS at

rated voltage. The pump with lesser number of stages will be preferred. RPM of pump set shall be

Company shall be offer the efficiency within -5 digit at pump operating head range at +10% to - 25%

(i. e. if company shall be offer 50% efficiency at duty point, 45% efficiency shall be maintained

at pump head operating range +10% to -25%) three phase, 50Hz, 415 (+10% - 15%) volts, 2900 RPM.

Minimum motor horse power rating, cable size, starting system and delivery size shall be as per

ANNEXURE - IV attached. In case, if the motor rating exceeds the minimum rating given in the

annexure-IV, then the starting method as applicable shall have to be given accordingly.

Pump casing should be free from blow holes, sludge inclusion and other detrimental defects.

Casing should be provided with renewable wearing rings except in radial flow pump set. Casing

should be hydraulically tested up to 1.5 times shut off pressure.

The shut-off head of the pump shall be 5% or more than the maximum head (operating range).

Impeller should be of closed type ensuring required performance and free of cavitation. The

material of impeller shall be as per Annexure – V.

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The shaft for pump &motor shall be common i.e. uni-built.Below the impeller shaft assembly, shaft protection

sleeve shall be provided. It shall have surface finishing of 0.75 Microns. The material of shaft shall be as per

Submersible motor shall confirm to IS: 9283 / 1994 with latest revision. It should be totally enclosed

squirrel cage induction type water cooled and water lubricated, sealed against entry from outside water.

The windings shall be of wet type. The thrust bearing should be of wet type water lubricated and designed to

take all untoward load at most unfavorable running conditions. Front and rear bearing housing and thrust

bearing housing should preferably be fixed separate replaceable bolts/studs and (not threaded connections) to

the starter to facilitate easy dismantling.

Full proof sealing arrangement by sand guard shall be preferred in the motor inlet body to prevent open well

water impurities like sand, silt from entering the motor bearing. Stator and motor should be impregnated with

a superior varnish class-B thermal insulation properties by vacuum pressure on stator cold rolled stamping

Rotor shall be painted with Polyurethane paint & backed properly under controlled temperature condition and

not by manual or gravity flow to remove air pocket so that these are thoroughly filled up by varnish. Motor

rotor should be preferably lead shot blasted. Subsequently, rotor body should be baked repeatedly under

controlled conditions to ensure long life of paint and hard finish to the surface to avoid corrosion before power

The rotor shaft shall be as per Annexure–V and provided with sleeves having materials as per Annexure-V in

the bearing portion. The windings should be accessible to facilitate checking and locating any faults without

disturbing all the coils and also to enable replacement of any defective coils. It should be possible to

rewind the stator with readymade pre-tested coils in order to save time during the repair. Kelvin Bridge/digital

resistance meter shall be treated preferable for measurement of hot and cold resistance of winding for

evaluated temperature rise. Full proof arrangement should be made for stopping the rotating of shifting of

stampings inside the stator body due to operation of pump sets. Earth leakage current should not be

more than 50 mili-amperes at rated voltage.

The quoted HP of motor shall meet following conditions,

Minimum power margin over and above the duty points shall be 15%.The offered motor should not have

output rating less than that mentioned in ANNEXURE-IV (under the column Minimum HP) in any case.

The Motor rating shall be equal to or up to 10% higher than that mentioned in ANNEXURE- IV according to

offered overall efficiency. However the motor shall not get overloaded during the specified head range of

+10% to -25% over duty point head as per IS.

The motor should not get overloaded in the range of + 10% & -25% of the specified pump head. The meaning

of overload will be as per IS:

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All rotating parts should be individually balanced if applicable on machine for mini mum 700 RPM

according to the relevant IS and vibrations of the assembly during testing shall not exceed 80 microns

peak to peak as per relevant IS.

Brass drain plug, SS suction strainer and compensating device shall be provided.

The motor shall be painted and baked under controlled condition or powder coated with easy

assembling of winding.

Winding shall be subjected to 1.5 KV for 30 seconds and shall have matching grooves for stopping

stamping from rotation and shifting.

Stampings shall be treated chemically to recover unwanted substance and impurities.

Rotor shall be lead/sand shot blasted. Thrust plate lapping shall be done on machine and the limit

shall be 0.3 Micron.

Stator end ring shall be of bronze metal or SS / MS as applicable.

Stator shall be re-windable with readymade pretested coils in each type of motor offered.

Contractor shall submit cross sectional drawing of pump motor with clear indication of material specification

for the major components covered under this specification.

Method of Starting

Up to 7.5 HP Direct On Line Starter, 08 HP to 20 HP Star – Delta Starter and 21 HP and above Auto

Transformer Starter

Motor shall be provided with three core flat PVC Copper water proof and flexible Cable of minimum 5 meter

length of suitable size. The cross sectional area should be sufficient so as not to cause voltage drop of more

than 2.5% of nominal voltage i.e. 10volts at 400 volts throughout the length of the cable. Size of the flat cable

as per ANNEXURE-IV. Cable shall be with ISI Mark (IS:694) manufactured by GWSSB approved venders.

The method of marking all the pumps to be delivered under scope of this contract shall ensure that all the

information will remain legible even after transportation, storage in open space etc. In general the legible and

marking upon the goods shall indicate the followings.

1) Manufacturer’s Brand name and/or Trade Mark. / Model Embossed / Engraved.

2) Year of manufacturing.

3) Any other important matter that the manufacturer deems fit to be inscribed.

4) BEE Logo is preferable. Manufacturer may give BEE logo voluntarily.

Name plate on corrosion resistant materials shall be affixed on the pump sets with the following

1 Name of Manufacturer

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3 Serial Number

4 Delivery Size (NRV) size in mm mm

5 Number of Stage No.

6 Head in meter at Duty Point Meter

7 Operating Head range for overloading requirement Meter

8 Discharge at Duty Point LPM

9 Overall Efficiency at Duty Point %

10 Motor rating KW

11 Rated Current Ampere

12 Rated Voltage (V) with Variation Volt

13 Rated Speed RPM

14 Frequency (Hz) Hz

16 Connection Star / Delta

17 Type of Duty (Whether Continuous or Not)

18 Minimum Submergence Required meter

19 Year of Manufacture

Pump shall be tested as per IS: 14220 and IS: 11346 and motor will be testedas per I.S: 9283 at

manufacturer's works.

Contractor has to give inspection call with internal test report in specimen sheet shown in IS:

The pump manufacturer has to maintain and produce proper record such as calibration of instrument

etc. for verification by inspecting agency.

The leakage current of pump set shall not exceed 50 mills amperes at rated voltage. The manufacturer

shall furnish their quality assurance plan to the inspecting agency who will review the same to their

Rejection of any kind during inspection will be viewed seriously.

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The manufacturer shall have to provide material test certificate for impeller / shaft for

chemical properties carried out at NABL accredited / Government approved laboratory for

The inspecting agency shall dismantle the pump set precisely to carry out the strip test which shall also

include thorough review of the material used with reference to the relevant tests. If required to ensure,

the use of proper material they may also suggest to carry out any of the required tests excluding HV

Routine inspection as per pump test record sheet at the time of supply will be carried out

jointly by the PMC and GWSSB.

The type test certificate as per IS: 9283 from Government Laboratory/ NABL accredited approved

laboratory for each HP range / frame size of submersible motor shall invariably be submitted for

review and acceptance during performance testing @ manufacturers’ works. It shall not be stale i. e.

older than two years.

However if such tests are not carried out previously the same shall have to be carried out at the time of

Pump & motor shall be packed in a suitable wooden box acceptable to buyer.

Material for Components of Horizontal Mono Submersible Pump as per IS: 14220 / 1994 with Latest

Sr. Name of Parts Materials of Construction

1 Shaft sleeve when used Grade X20 Cr 13 Conforming to IS: 1570(Part-5)

2 Motor bearing housing and base Grade FG 260 of IS: 210/1993

3 Pump & Motor Shaft (Common) SS AISI

4 Bearing Bush Leaded tin bronze Grade LTB4

5 Rotor Electrical sheet steel and electro grade copper rods

conforming to IS: 613/1984

6 Stator Core Electrical sheet steel and PVC insulated winding wire

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conforming to IS: 8783/1978

7 Winding Wire As per relevant IS: 14220 and IS:

8 Breather and Diaphragm Nitrile Rubber

9 Cable Three Core Flat PVC Copper Cable with IS Mark

10 Cable Gland Nitrile Rubber

11 Thrust Bearing face combinations Carbon / Stainless Steel

12 Water drain plug Bronze

13 Impeller Leaded Tin Bronze LTB 2 of IS :318/1981

14 Casing Cast Iron Grade FG 260 of IS: 210/1993

15 Sand Guard SS

16. Studs SS AISI

Quoted Efficiency at Head Range at +10 % to – 25 % of Three Phase Horizontal Mono

Submersible Pumps shall be as follows

Sr. Discharge in Head in Minimum Minimum +10 % -25 %

No. LPM Meter HP Overall Head Head

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CONTROL PANEL BOARD

Supply of fully automatic air break type panel up to 7.5 HP Direct On Line, Star - Delta from 8 to

HP above 20 HP Auto Transformer Control Panels for submersible pumps suitable for operation on

415 (+ 10% to -15%) Voltage,3 Phase, 50 + 3% Hz AC supply. Control panels shall comprise of

MCB/MCCB, Overload relays, Contactors and Accessories. The details of equipment / accessories

for each type of panels are given in enclosed data sheet.

Control panel shall be dust and vermin proof as per IP41 and fabricated out of minimum 1.5 mm CR

sheets for all panels. Control panel shall be wall-mounting type for DOL / Star Delta and for ATS

wall mounting-cum-pedestal type. All items inside the panel shall be mounted on steel base plate. All

metal parts shall be thoroughly cleaned, degreased and made free from rust. Control panels shall be

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powder coated. The color shade of panel shall be RAL 7032 for entire panel and component

mounting plate should be Orange only. Size of the enclosure shall be as mentioned in the drawings

All bolts, nuts, screws, washers shall be Galvanized Zinc / Cadmium plated and passivity and full

protection from dust rubber lining shall be provided. Entry of suitable size cable shall be provided at

the bottom of the control panel for outgoing cable to submersible motor. There shall be one suitable

entry on bottom of control panel for incoming cable. Layout on the door will be as per drawing

(attached). For closing the door two half turn door locks (Top and Bottom) operated by a screw

driver type key should be provided. One key is provided by the supplier with each control panel.

The cable entries for incoming and outgoing cable shall be provided with rubber grommets, at bottom

WIRING AND TERMINALS

Power supply to control panel and internal control panel wiring shall be done with PVC insulated

copper conductor / strip having 660/1100 V grade insulation. Control wiring shall be done with

square mm copper conductors and shall be terminated with adequately sized compression type lugs

for connections to the equipment terminals and the terminal strips. Each wire shall be identified at

both ends by PVC ferrules. Not more than 2 wires shall be terminated at one terminal. Proper type

and size of terminals shall be used keeping in view the components for which they are used, so that

sufficient surface contact can be achieved. Screws and bolts should be used as per corresponding size

and hole. It shall be done to the satisfaction of inspection authority. Incoming and outgoing

connections to be made at terminals only Clip on type terminals shall be used for wiring up to

square mm and for conductors larger than 10 square mm bolt type terminals shall be provided.

Terminals may also be permissible on epoxy insulator with copper strip and hardware of proper size.

The size of incoming cable shall be provided as per table I here under:

Sr. Type of control panel Size of incoming Terminal strip for outgoing

No. conductor terminal conductor

1 DOL up to 3 HP Panel 1 x 3 x 2.5 sq.mm 1 No. - 2.5 sq.mm

2 DOL up to 5 HP Panel 1 x 3 x 2.5 sq.mm 1 No. - 2.5 sq.mm

3 DOL up to 7.5 HP Panel 1 x 3 x 4.0 sq.mm 1 No. - 4.0 sq.mm

4 S-D 8 to 10 HP Panel 1 x 3 x 6.0 sq.mm 2 Nos. - 4.0 sq.mm

5 S-D 11 to 15 HP Panel 1 x 3 x 6.0 sq.mm 2 Nos. - 4.0 sq.mm

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6 S-D 16 to 20 HP Panel 1 x 3 x 10.0 sq.mm 2 Nos. - 6.0 sq.mm

7 ATS 21 to 30 HP Panel 1 x 3 x 16.0 sq.mm 1 No. - 16.0 sq.mm

Provision shall be provided for connecting the earth. All non-current carrying metallic parts of the

equipment shall be earthed. Two “L” shaped earth bus of aluminum (19 mm x 3 mm) shall be

connected between base plate and the body of the panel. Also necessary provision of earthling on

door shall be made to connect main earthing.

Labels shall be provided for each equipment mounted on the panel and all labels shall be engraved in

Gujarati Language on 3 ply-laminated sheets or anodized aluminum. These shall be fastened to the

panels by screws and not by adhesive. All mounted equipment shall have identification with paint

inside the panels. Instruction for operation of panel shall be engraved in Gujarati language on 3 ply

laminated sheet or anodized Aluminium. These should be fastened to the front side of panel door by

screws and not by adhesive.

Checking and removal of components shall be possible without disturbing adjacent equipment. All

auxiliary equipment’ shall be easily accessible incoming supply terminals shall be shrouded with

plastic covers to prevent accidental contact.

MCCB FOR ATS AND MCB FOR DOL / STAR – DELTA

1) FIXED THERMAL MAGNETIC TYPE

2) BREAKING CAPACITY (ICU) SHOULD BE MINIMUM 10 KA UP TO 200 A AND

MINIMUM 35KA FOR 225 A AND ABOVE (ICU = 50% OF ICS)

3) ALL ACCESSORIES SHOULD BE FIELD FIT TABLE TYPE

4) RATED INSULATION VOLTAGE SHOULD BE MINIMUM 600 V

5) CERTIFIED POLLUTION DEGREE FOR ENVIRONMENT FOR MCCB SHOULD BE AS

1) SHOULD BE SUITABLE FOR ISOLATION FUNCTION AS SPECIFIED IN IEC 60898 /

2) SHOULD HAVE IP-20 PROTECTION WITH POSITIVE CONTACT INDICATION

3) SHOULD BE OF "C" TYPE TRIPPING CLASS SUITABLE FOR MOTOR APPLICATION

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4) ENERGY LIMITATION CLASS SHOULD BE III

5) AVERAGE SUITABLE LIFE SHOULD GREATER THAN 20,000 FOR 32 A AND

FOR MORE THAN 32 A RATING

6) BREAKING CAPACITY SHOULD BE MINIMUM 10KA

MCCB / MCB for main circuit shall be with Triple Pole and separate neutral. It shall be mounted

inside the panel on base plate and the operating trigger shall be front of the panel in such a way that

only trigger is seen fitted in a Hooper type box as shown in drawings. A separate MCCB / MCB for

capacitors should be mounted as suitable place inside the enclosure. The current rating shall be as per

Sr. Type of Control Panel FOR MAIN FOR CAPACITOR Range of

No. Board CIRCUIT CT

Capacity of Capacitor

MCB / MCCB KVAr

1 DOL up to 3 HP Panel 16 AMP MCB - 0 10/5 AMP

2 DOL up to 5 HP Panel 20 AMP MCB - 0 15/5 AMP

3 DOL up to 7.5 HP Panel 25 AMP MCB 6 AMP MCB 3 20/5 AMP

4 S-D 8 to 10 HP Panel 32 AMP MCB 6 AMP MCB 3 30/5 AMP

5 S-D 11 to 15 HP Panel 50 AMP MCB 10 AMP MCB 4 50/5 AMP

6 S-D 16 to 20 HP Panel 63 AMP MCB 10 AMP MCB 5 60/5 AMP

ATS 21 to 30 HP Panel 75/80 AMP 16 AMP MCB

The contactors shall be air break type having AC-3 duty rating. The contactor shall be suitable for

operation on 415+10% and -15% voltages. Current shall be as per Table-III. All contactors shall be

suitable to perform at ambient temperature - 20 0 C to 450 C. The insulation class coil shall be B or

higher. Minimum life of operating cycle as under in million

1) Mechanical - a) 15 up to 32 A, b) 10-33 A to 80 A and c) 5-81 A to 400 A

2) Electrical - a) 1 up to 70 A, b) 0.75 - 71 A to 150 A and c) 0.5-151 A to 400 A

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OVERLOAD RELAYS (IN CASE OF DOL / STAR DELTA / ATS)

Overload relays shall be three element positive acting ambient temperature compressed type within

built single phasing prevention mechanism and adjustable setting range to ensure protection against

overload and single phasing. Bimetal relays shall be manually and auto reset type. Should have 1 No

+ 1 NC or 1C/O potential free auxiliary contact. Ratings shall be as per Table-III. Overload relays

should be same make as per contactor as far as possible.

CONTACTORS & MCCB / OVERLOAD RELAYS

Sr. Type of Control Panel Delta/ Relay Range

No. board Step in Amps.

Contactor Contactor

Contactor (Approx.)

1 DOL up to 3 HP Panel 16 - - 3-5

2 DOL up to 5 HP Panel 16 - - 6-10

3 DOL up to 7.5 HP Panel 22/25 - - 10-16

4 S-D 8 to 10 HP Panel 16 16 16 6-10

Overload relay shall be provided considering following

For DOL: 1.6 times of Maximum HP

For Star - Delta: 0.96 times of Maximum HP

For ATS up to 80 HP: 1.5 times of Maximum HP

For ATS above 80 HP: 1.4 times of Maximum HP

It shall be within calculation range having margin at upper side for future. It shall be manually or

auto reset type.

Temperature compensation: -200 to +550 C

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CONTROL SUPPLY:

415 (+10% - 15%) voltage, 3 Phase, 50 ± 3% Hz AC supply.

Door push button shall be provided for control circuit in such a way that motor supply shall be cut off

when door is opened.

415 / 230 V transformer shall be provided for supply to MFM.

AUTO TRANSFORMER

Auto transformers shall be air cooled type having 3 tapping of 60%, 70% and 80%. The same should

be wound with copper wire. The size of the wire shall be determined as per the HP of the motor.

Stampings of reputed make and winding wire with ‘E’ Class insulation shall be used. This shall also

be suitable for 6 starts per hour. Maximum temperature rise should not be more than 115 0 C as per IS.

Kordnoffercircuits as per IS should be adopted in ATS Panel. ATS shall be provided with Thermal

Overheat Protector (TOP) in each coil of transformer in such a way to cut the supply of control

circuit to save the transformer from overheating. Thermal Overheat Protector (TOP) rating shall be

900 C with addition on account of 10% tolerance i.e. 1000 Centigrade ± 10%.It shall have an Acrylic /

Hylem sheet over the transformer and to absorb humming rubber sheet shall be provided below auto

i) Auto transformer shall be vacuum impregnated.

ii) Testing of transformers shall withstand full load starting current (6 x 1.5 x HP x Tapping 2) for

six starts per hour. Each kick shall be of 15 seconds duration as per relevant IS.

iii) (%) Percentage regulation of voltage shall be within 10%.

iv) Excitation current at no load at rated voltage shall be less than 10% of rated current.

v) Lamination shall preferably be CRGO (Cold Rolled Grain Oriented) alternative CRNGO.

Re-wire able control fuse shall be provided for DOL, Star Delta, and ATS Panels 16A 415 Volts

Star Delta: Electronic Star Delta changes over time 0 to 30 seconds.

ATS: Thermal / Electro - Pneumatics / Electronic timer for change over in start to run shall be

provided. Control wiring may change as per type of timer and contactors.

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MULTIFUNCTION METER

Digital type CT Operated multifunction meter, 3 lines display i.e. showing any three parameters at a

time, of class 1accuracy shall be provided showing A, V, Hz, Pf, KW, KWH etc. Range of three

numbers CT shall be as per Table-II

INDICATING LAMPS:

Light emitting diode red color lamp shall be used at 230 V and size of lamp holder shall be 22.5 mm.

For DOL / STAR DELTA For ATS

Over load Trip Start

PUSH BUTTONS (22.5 MM DIA)

Push button colors shall be as follows

Timer Falls (ATS) Yellow

Overload Reset (ATS) Black

SINGLE PHASING PREVENTER

Single phasing preventer with auto switch shall be operating on negative phase sequence components

principals and shall be voltage sensing type only. It shall operate satisfactorily from 320 to 480 V. cut

off voltage shall be 320 V and 480 V. Timing range of delay shall start from 0 to 45 seconds. Toggle

switch for Auto-SPP-By Pass shall be provided on the front of the unit. There must be an indication

when 3 phases are balanced. When one fuse blows, indication light would go off. The wiring

diagrams of SPP should be provided on the unit (SPP).

The length of cable for panels shall be provided with 3 meters suitable size (as per table-I) flat PVC

Copper submersible cable of 660/1100 V grade duly crimped with lugs of both ends. And an

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additional wire of 2.5 sq.mm (Black) single core shall be provided with 3phase incoming cable from

neutral point to UGVCL supply. The cable shall be IS Marked and from GWSSB approved vendor.

APP 415/440 Volts AC UGVCL approved capacitor with test report shall be provided with necessary

connections. Test Certificate shall have to be provided in duplicate for each panel. Capacitor shall be

inside the panel. Capacity of capacitor is tabulated in the Table-II. (Different units of Capacitor are

acceptable but total KVAr shall not be less than specified in Table-II).

Test and Inspection

1) Tests shall be carried out at panel builders’/ manufacturer’s works under his care and expense.

2) Following tests as per applicable standards & code shall be conducted during inspection.

a) HV IR for All panels - 2.0 KV for power test Circuit for 1 Minute- 1.0 KV For

Control Circuit

b) Meager All panels test as per relevant IS

c) Functional test (All panels)

d) Temperature rise test for autotransformer only one from each category out of lot of

any number of panels offered for inspection.

3) The test report of the concerned equipment / components from the concerned vendor shall

have to be provided to inspecting agency for review and acceptance

EQUIPMENT MAKES

Unless approved in writing equipment/components of following make approved by CPRI / EARDA

Tested shall only be acceptable.

MCB / MCCB L & T SIEMENS, ELCON, STANDARD, C & S, GE, HAVELLS,

SCHNEIDER, HPL, INDO-ASIAN, BCHand GWSSB Approved

Contactors L&T, SIEMENS, YULE, JSL, C&S, GE, BCH, SCHNEIDER,

HAVELLS, PECO, INDO-ASIAN and GWSSB Approved Vendors Make

Overload Relays L&T, SIEMENS, SCHNEIDER, GE, YULE, JSL, C&S, BCH,

HAVELLS, T/M, GS, PECO, INDO-ASIAN and GWSSB Approved

Timers L&T, JSL, ELLICO, C&S, BCH, GELCO, INDO-ASIAN and GWSSB

Approved Vendors Make

Push Buttons L&T, SIEMENS, TEKNIC, VAISHNO, C&S, MATHURA and GWSSB

(22.5 mm) Approved Vendors Make

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CT Coil Approved by CPRI / ERDA Tested

Door Push Button REPUTED and GWSSB Approved Vendors Make

Digital Meters AE, IMP, MECO, RISHABH (L&T), TRINITY, EL-MESURE, HPL,

INDOTECH, NIPPEN, SELEC, GELCO, ELLICO and GWSSB

Approved Vendors Make

Terminals TOSHA, ELMEX, TECHNOPLAST, PI, CONNECT WELL, AIRON,

VIRAL and GWSSB Approved Vendors Make

Single Phase MINILEC, GELCO, ELLICO, AMBILIN OR Any other make approved

Preventer (Auto by CPRI / ERDA Tested as per GWSSB Specification for each Rating and

Switch) GWSSB Approved Vendors Make

Incoming Cable GWSSB Approved with IS Marked

Indicating Lamps AIRON, ESSEN, IEC, B.C.H., VAISHNO, CONCORD, TEKNIC,

(LED) ELCOM, MATHURA and GWSSB Approved Vendors Make

Rewire able Fuse WILLY, KEW, SUPER, PEW and GWSSB Approved Vendors Make.

Auto Transformer SUN, ELEMBICA, SUECO, ELTECH OR Any other make approved by

CPRI/ERDA Tested as per GWSSB Specification for each Rating and

GWSSB Approved Vendors Make.

Capacitor G.E.B. Approved make and GWSSB Approved Vendors Make.

APPLICABLE I S STANDARDS

Control Panel and equipment shall conform to following OR relevant I.S. specifications.

a) General requirement of switchgear and control gear voltage not

IS: 13947 / Part-I

exceeding 1000 Volts

IS: 13947 Part-II Degree of protection provided for switchboard

IS: 13947 Part-IV Contractor AC Voltage not exceeding 1000 Volts

IS: 13947 (Part- I

Motor starter for voltage not exceeding 1000 Volts

b) IS: 2705 Specifications for Current Transformer

c) Code of practice for installation and maintenance of induction

motor starter AC voltage not to exceeding 1000 Volts

d) Multi-Function Meter

Suppliers shall have to supply Control Panel Board as per approved SLD / Wiring Diagram/BOM

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The Monogram of “GWSSB” should be screen printed on the panel.

Sample BOM for DOL / STAR DELTA and ATS CONTROL PANEL

Sr. No. Description DOL Qty. S-D Qty. ATS Qty.

1 MCB (For Motor) 1

2 Contactor 1 3

3 Overload Relay 1 1

Motor Start 1 1

Overload Relay Reset

5 Indicating Lamps

Overload Trip 1 1

6 Digital Multi-Function Meter 1 1

7 CT for Multi-Function Meter 3 3

Single phasing Preventer (Auto

9 Capacitor 1 1

10 MCB / MCCB for Capacitor 1 1

12 Control Fuse 3 3

13 Auto Transformer

Note: The use of contactors and overload relays in the control panel shall be of one make as far as possible.

G. I. HEAVY DUTY PIPES

Supply of ISI marked heavy duty 50 mm, 65 mm, 80 mm, 100 mm and 125 mm NB dia. HFS/

HFIW/ ERW column pipes duly threaded at both ends as per actual requirement. The pipes shall have

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to be manufactured as per IS: 1239/2004 with latest amendment. The HR coil conforming to IS:

10748 Grade-2 with appropriate thickness shall be used to manufacture pipes.

The threading shall be as per drawing attached herewith. The length of male threads of pipe shall be

as mentioned in the drawing, out of which some portion of length shall be taper threading and the

remaining portion shall be parallel threading so as to match with the coupling for proper tightening

and load sharing. The pipe ends shall be threaded for 8 TPI. The pipe shall be in length of 3 or

meters (± 150mm) which shall be measured as per IS: 1239 i.e. the length of tube shall be inclusive

of socket on one end with tight threading.

Size Length of Pipe (± 150mm)

80mm 3 Meters or 6 Meters

100mm 3 Meters or 6 Meters