Construction Of Various Roads In Kamrej Taluka-(1)Construction of Kolibharthana village to Nansad village Main road, Ta. Kamrej, Dist. Surat.(2)Construction of Vav-Virvas bridge to connecting Vav-jokha road. Ch 0/0 to 0/200 km, Ta. Kamrej, Dist. Surat. (3)Construction of Shampura Sankrutik bhavan faliya to vihan road. Ch 0/0 to 0/900 km, Ta. Kamrej Dist. Surat. (4)Construction of Karjan Ghala road. Ch 0/0 to 0/650 km, Ta. Kamrej Dist. Surat. (2nd time)

Name of Work:-. Providing to EI in Primary School Of Timarva Village,

Ta. Choryasi, Dist. Surat..

Tender document contain Pages 1 to 55 Page

B Instruction to tenderers

B Forms of tender for electrical work (induplicate with) 2-3

schedule of time limit

C General Conditions 4-6

D General Conditions of Contract for electrical works 7-16

E Specification for electrical works 17-38

F General requirements 38-47

G Specifications of earthing

H Notes :- Approved Makes For the Year 2006-2007 49-55

K Tender Notice

(i) Amount put to tender Rs.

(ii) Security Deposit Rs.

(iii) Earnest Money Rs. (Bank Guarantee will not be accepted)

(iv) Tender Fee Rs.

Last Date of Receipt of Tenders by R.P.A.D. / Speed Post Dt.__________

Executive Engineer

R&B Deptt., Surat

Instruction to Tenders

1. Tenders sealed and marked on the out side for

“ will be received undersigned

upto the day of

in the form of “Tender for Electrical Works” here to annexed.

2. The tenders shall state precisely in his tender the type and description of the materials.

Plant and stores he process to use for the work is to process to use materials, plant or

stores of other than Indian manufacture and of the country of origin of the same.

3. The officer with whom deposits are to be made, or the whom securities are to be

endorsed in accordance with clause 3 of General Conditions of contract for Electrical.

4. The work must be carried out in accordance with General Condition of Contract for

Electrical Works, and the general specification for electrical works Government building.

5. Plans may be seen, in the office of the Executive Engineer Ahmedabad Elect. Division

No.1 Ahmedabad.

Department R & B

6. The Governor of Gujarat does not undertake to accept the to west or any tender.

Executive Engineer

R&B Deptt., Surat

Form of Tender for Electrical Works

R&B Department.

1. I / We do hereby tender to execute the whole the work.

Describe in the accompanying tender for the several sums, and in the case of measured works, at the

several rates, set forth in the tender work to attached and signed by me / us and should this tender be

accepted. I / we further undertake to complete the work within times stated below reckoned for the date

of acceptance of tender namely.

2. I / we do agree and bind my self / our selves to abide by and fulfill the general condition of

contract and the special Condition of Contract annexed to the Specification or in default there of

to pay to the purchaser, as reasonable compensations for such breach of such conditions, the

sums of money mentioned in

the said condition.

3. I / we further agree to make good at my / our own expense all defect in the which appear within

twelve from the date branding the installation into beneficial use when such defect are due to

defective workmanship or material executive of supplied by me / us.

4. I / we hereby declare that my / our near relative are not working in this Division or its sub-division

as an Executive Engineer, Dy. Executive Engineer, Assistant Engineer, Additional Assistant

Engineer, Overseer, Divisional Accountant, Store Keeper, Manager of Atithi / Vishram Gruh and

in the circle as Superintending Engineer, as to day (Note 5 below para 200 of GPWD Manual

The above tender is hereby accepted by me for and on behalf if the Governor of Gujarat.

Executive Engineer

R&B Deptt., Surat

Form of Tender for Electrical Works

R&B Department.

1. I / We do hereby tender to execute the whole the work.

Describect in the accompanying tender for the several sums, and in the case of measured works, at the

several rates, set forth in the tender work to attached and signed by me / us and should this tender be

accepted. I / we further undertake to complete the work within times stated below reckoned for the date

of acceptance of tender nemely.

2. I / we do agree and bind my self / our selves to abide by and fulfill the general condition of

contract and the special Condition of Contract annexed to the Specification or in default there of

to pay to the purchaser, as reasonable compensations for such breach of such conditions, the

sums of money mentioned in

the said condition.

3. I / we further agree to make good at my / our own expense all defect in the which appear within

twelve from the date branding the installation into beneficial use when such defect are due to

defective workmanship or material executive of supplied by me / us.

4. I / we hereby declare that my / our near relative are not working in this Division or its sub-division

as an Executive Engineer, Dy. Executive Engineer, Assistant Engineer, Additional Assistant

Engineer, Overseer, Divisional Accountant, Store Keeper, Manager of Atithi / Vishram Gruh and

in the circle as Superintending Engineer, as to day (Note 5 below para 200 of GPWD Manual

The above tender is hereby accepted by me for and on behalf if the Governor of Gujarat.

Executive Engineer

GENERAL CONDITIONS

1. The work of the Electrical Installation shall be carried out as per I.S. specifications I.S.

Specifications I.S. 782 Code part I, II & III - 1982-82 of practice of Electrical wiring and fitting in

For Hospital I.S. 7732 of

For Educational Installation I.S. 108941 –1984

For Aluminium Conductor I.S. 398 - 1984 Part III

2. The fitting should be fixed with mild steel hooks to be supplied and erected and duly

grouted in the cement concrete by the contractor wherever possible the decision of the Ex.Eng.

in respect to the feasibility of providing such hooks in the cement concrete, shall be final and

building on the contractors.

3. The work shall have to be completed within the prescribed time limit unless the

extension in the time limit at the instance and the request of the contractor is granted by the

authorities in which case, the application for the extension in time limit have to be made by the

contractors by registered post before the date of expire of the schedule time limit under the

4. The amount of Rs. 1-00 for each empty wooden box of ceiling fan and 0-05 paise for

each empty wooden box of Table fan issued to the contractors for the work as per schedule B of

the work shall be recovered form the Contractors.

5. Material required for the work shall be supplied to the contractor as per rates mentioned

in the schedule "A" attached herewith and the cost of materials will be recovered form their bills.

6. The tender documents required shall have to be filled in either in ink or by ball pen.

7. In addition to the above the tender will also be liable to the rejected outright if -

(i) And of the pages of the tender is/are removed or replaced.

(ii) In the case of "Item rate" tender, the rates not entered in ink in figures and works

and the total of each item and grand total are not struck by the tender or in ink in

and the total of each item and grand total are not struck by the tender or in ink in

the last column of schedule "B" under his signature

(iii) All Corrections additions of pasted slips are not initled by the tender.

(iv) The tender in the case of a firm, each partner or the person or the person holding

the power of attorney there of does not sign to the signature is/are not attested

by witness on page 8 of the tender in the space provided for purpose.

8. A certificate of registration as approved contractors should be attached with the tender.

9. In respect of tenders from the Co-operative society a solvency certificate of an amount

equal to 20% of amount of the work put to tender will have to be produced along with

tender or a certificate, regarding the borrowing capacity of the society issued by the legal

Assistant, Directorate of Cottage Industries will have to be produced along with tender.

10. The several documents forming the contract are the essential parts of the contract and

requirement occurring in one is as binding as though occurring in all, they are intended

to be mutually explanatory and complementary and to describe and provide for a

11. In the event of any discrepancy to several document forming the contract or in any one

document the following order of precedence should apply.

(a) Dimension and quantities :

(ii) Schedule 'B' and the tender form

(iii) Specification

On drawing figures, dimensions unless obovio in contract will followed in preference to

sealed dimension.

(b) Description :

(i) Schedule 'B' of the tender from

(iii) Specifications

In case of defective description or an ambiguity the Ex. Engineer in change should issue

further instructions directing in what manner the works is to be carried out is being

understood that the last modern practice is to be followed. The contractor should

forthwith comply with such instruction.

12. The contractor should take no advantage of any apparent error, Omission in drawings or

a specifications and the Executive Engineer in charge should be permitted to make full

the intent of the plans and specifications.

13. Controlled materials (Essentially certificate)

(i) As regards "Controlled materials, the R&B Dept. will help to arrange for the

permites as for as possible and the contractor is occuring the same, All incidental

charges in procuring these materials shall be borne by the permit as far as

possible by the contracter himself. Through the R&B Dept. will help to arrange for

the permit as far as possible and help the contractor in obtaining the materials, it

shall not accept any responsibility for any delay or loss on account of delay

caused to the contractor while obtaining the same.

(iii) The contractor shall submit the Ex. Engineer or his representative to inspect the

stock of the contra rolled materials by him at any time whenever the Ex. Engineer

or his reprehensive so desire sentives so desire.

14. The tender for the work shall remain open for a period (90/120*) day from the stipulated

date of receiving of the tenders for this work and that the tenders shall not be allowed to

withdraw or modify the offer on his own after handing over the tender to postal authorities for

dispatch. If any tenders withdraws or makes and modifications or additions in the terms and

conditions of his tender not acceptable to the Government (Public Works Department) then the

Government shall without prejudice to any right remedy be at liberty to forfeit in full the said

earnest money absolutely.

15. The contractor shall employ only such labourers who shall produce a valid certificate of

having been vaccinated against small pox within in period of last three years.

16. The contractor shall provide drinking water facilities to the workers, labourers to comply

with the provisions, the engineer in charge shall gives notice for such facility to the workers,

labourers within a period often days from the date of the notice in writing the Engineer in charge

shall three upon make the arrangement for the drinking water at the cost of the contractor.

17. The contractor shall provide the amenity of shade and Sheller to the workers, labourers

and their children on Govt. work as soon as the work start. If the contractor fails to provide

shade and shelter than the Govt. shall provide the same at the cost of the contractor.

Govt. Resolution PWD No. TNC-2172(i) 76-C Dt.4-7-1973.

18. Challan for earnest money @ 1% of the estimated cost must accompany the tender.

Tendered may pay earnest money upto Rs.50,000 in cash or the form of Crossed Demand Draft

or in case of tendered is member or only IEEMA Deposit at call receipts of Nationalized or

schedule co-operative Bank having 5 years standing drawn in favour if Executive Engineer,

Divisional Officer concerned. However in respect of the works estimated to cost above Rs.50

lacs the amount of earnest money in excess of Rs.50,000 can be offered in contractor as his

choice in the form of Bank Guarantee of the Scheduled Bank only. The Bank Guarantee in such

cases will be furnished in the following form in such cases also, the amount of first Rs.50,000

will paid only in the form of cash or crossed demand draft or fixed deposit receipts or deposit as

at call receipts worth the validity period of not less than 6 months of the nationalised or

Scheduled or Co-operative Bank having five years standing. The Contractor who have secured

exemption certificate for payment of earnest money by depositing Lump Sum earnest money

Deposit need not pay earnest money, but produce the certified copy of the exemption certificate

along with the tender.

Where as M/s. therein after called the Tenders is desirous and preferred to tender for

works in accordance with the terms and conditions of the tender for the work of and where as

we. Bank agree to give the tendered guarantee for the earnest Money.

1. Therefore, we hereby affirm that we are guarantors on behalf of the Tendered

upto total Rupees in worlds Rs. (in figures) and we undertake to pay to Executive Engineer

Division Department of Government of Gujarat the (name of Govt. previous notice of judicial or

to be specified) upto his first written demand without demur, without delay and without the

necessary of a previous notice of judicial or administrative procedures and without the

necessary to prove to the Bank the defects or shortcomings or debits of the contractor any sum

within the limit of Rs. .

2. We further agree that the Guarantee herein contained shall remain in full force

and effect during the period that would be taken for the acceptance of tender.

However, unless a demand of claim under this guarantee is made on us in

writing on or before the (Date to be specified - will not be less than 180 days form the date of

opening the tender) well shall not revoke the guarantee thereafter.

3. We undertake not to revoke the guarantee during in currency except with the

previous consent of the Executive Engineer Division in writing.

4. We instly undertake not to revoke the guarantee for any charge in constitution of

the Tenderer or of the Bank

Date Signature & Seal of Guarantor

20. The rates should be written both in words and figures inclusive of all taxes duties.

21. The percentage additions in total amount tendered of any items in not allowed however if

21. The percentage additions in total amount tendered of any items in not allowed however if

over all reductions in percentage is offered the same should be stated in the prescribed clause

end of scheduled "B" in words.

Strike out whichever is not applicable and figures.

If no reduction is to made the gap should be filled by the word NIL

Note As per Govt. Reso No. CDN/1269-PAC/51-C dt.15-4-1978

22. Safeguards :

(a) That percentage and the tender amount by each contractor shall actually be

shown to the other contractor who maybe present at the time of opening the tenders.

(b) That a tender with any erasures and/or over writing in percentage (both in word

and in figures) shall be rejected outright.

(c) That insertions and or correction in the percentage quoted (both in words and in

figures) resulting into increase in the value of the work shall be liable to be rejected outright

unless it is authenticated by the officer opening the tender at the time of opening tender as well

as the contractors they may be present at the time of opening tender and

(d) That any other correction or insertions shall be authenticated by the officer

opening the tender and the intending bidders who may be present.

23. Wherever secured advance has been granted the contractor should provide necessary

sign board indicating the fact of hypothecation of the materials to the Govt. and exhibited the

same publicly prominently. (Govt. in P.W.D. Resol No. PWD-2675-IB-90566-C dtd. 30-11-77).

24. The contractor should be give a written undertaking while applying for the grant of

secured advance in case of the agreement indenture bond already prescribed to the effected

that the has not taken or caused to be taken nor shall be taken or caused to be taken any

advance on the same materials on which secured advance is applied for form any other person

firm, corporation, limited company or any financing institution like Bank etc. by hypothecating or

pledging the materials (Govt. in P.W.D. Resolution No. PWD 2675-B/905-66C, dtd. 30-11-77)

25. Secured advance will be paid after producing equivalent amount of Bank Guarantee of

Schedule Bank (R&B D G.R.No. PWN-1090/U-O-13(5)-C. dated 4-10-1997).

26. Any error in quantity or amount in Schedule "B" showing items of works and figures

quoted by a tendered in the rates column, the description in words shall prevail.

(a) In the event of a discrepancy between description in words and figures quoted by

a tendered in the rates column, the description in words shall prevail.

(b) In the event of an error occurring in the amount column, and in carrying forward

totals shall be corrected.

(c) Any rounding off of amounts against items of in totals shall be ignored. The

tendered sum so a tered shall for the purpose of tender be substituted for the sum original

tendered and considered for acceptation.

27. Battens shall be teakwood for acceptable quality and shall be varnished before fixing in

28. Wooden-cup board should be polished on both the sides.

29. Income-tax clearance certificate in revised form should invariably be attached with the

tender papers Other wise tender may not be considered.

30. Whenever Government materials are issued the contractor shall be responsible for the

safe custody and proper use of the materials.

31. Loose electric fitting connections should be done at the time of handing over possession

of building to the concernment civil/Administrative department is responsible for fitting.

32. (i) Late tenders (I.E. tender received after the specified time of opening) Delayed

tender (i.e. tenders received before the time of opening but after the due date & time of receipt

of tenders) and post tender offers shall not be opened and considered at all.

(ii) The tenders received (by registered post after the time of date specified in the tender

notice) shall not be received by the concerned office from the postman for which date and time

may not be recorded on the cover of the tenders to when tender was refused by the Divisional

Accountant on the Divisional Head or any other person in charge.

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Signature of Contractors Executive Engineer

General Conditions of Contract for Electrical works in the building and Communication

General Conditions of Contract

1. Definitions of terms:

In construing the general conditions and the annexed specification the following words

shall have the meaning here assigned to them unless there is something in the his successors

The "governor of Gujarat" shall include his successors and assigns.

The "Engineer" shall mean the Ex. Engineer, Electrical Division, for the time being

attached to the Public works Department of the Gujarat State or such other officer as may be

appointed by the Ex. Engineer, Electrical Division to supervise the work on behalf of the

Governor of Gujarat.

The "Contractor" shall mean the Tenderer whose tender, shall be accepted by the

Governor of Gujarat and shall include the tenderer's legal personal representatives of

successors and assigns.

"Plant" shall mean and include any machine any machine fixed of movable, use for the

generation or transmission of power of actuated by power.

"Work" or "Works" shall mean the whole the plant and material to be provided and work

to be done executed of carried out by the contractor under the contract.

The "Contract" shall mean all the documents by which the agreement by the contractor

to be provided to execute of carry out the plant work or works shall be constituted or in or by

which the terms of such agreement or any of them are contained or set forth specially as per

these General conditions, any special conditions attached to or issued with these conditions.

The specification, the Drawing, the invitation for Tenders (if any) of any other letter. notice or

document upon or with reference to which the Tender is made and the Schedule of prices (if

any) furnished by the contractor with these his Tenders.

The "Specification" shall mean the specification annexed to these General conditions

and the Schedule thereto (if any).

The "Site" shall mean the whole of the premises, buildings and grounds in or upon which

the Plant works or works is or are to be provided. Exacted done or carried out.

The "Drawings" shall mean the drawings issued with the specification which will

ordinarily be identified by being signed by the Engineer and any further drawings submitted by

the contractor with his tender and duly signed by him and accepted or approved by the Engineer

and all other drawings supplied or furnished by the contractor or by the Engineer in accordance

with these General conditions.

The "Special Conditions" shall mean the special conditions of contractor (if any) attached

to general condition.

The "Schedule" shall mean the schedule or schedule attached to the specification.

2. Contractor to inform himself fully :

The contractor shall be deemed to have carefully examined the invitation for Tender (if

any) the general and any special conditions, the specification and Drawings and the Schedule of

price(in any). In case off discordance or want of agreement between or amongst the several

things herein described and the grounds or data of the contract then these conditions shall have

precedence of and be held to be more correct and binding and in like manner detailed drawings

shall be held to be more correct. and binding then general drawings and in like than drawing

made to a smaller scale, or for general instruction and figured dimensions shall be held to be

more correct than dimensions be scale but subject nevertheless in case of doubt or dispute as

to any of the matters aforesaid to the determination and decision of Engineer as hereafter is

more particularly mentioned and provided always that nothing herein contained shall limit the

powers of the Engineer herein after mentioned.

3. Security Deposit :

The Person/persons whose tender is accepted (hereinafter called the

"Contractor" which expression shall unless excluded by or repugnant to the context include his

Legal heirs, executors, administrators and assignees) shall (a) Deposit with the Executive

Engineer a sum sufficient to make up the full security deposit specified in the tender in cash or

Government securities (as mentioned in para 208 of Gujarat Public Works Department Manual

Vol.1) duly transferred in the name of the Executive Engineer or fixed deposit receipts or Term

Deposits of Narmada Project in the name of the Executive Engineer within a period of 10 days

form the date of receipt of the Notification of acceptance of his tender, or (b) (i) deposit fifty

percentage of the total security deposits as specified in the tender form with the Executive

Engineer in form of small saving schemes or securities of Sardar Narmada Nigam or F.D. Rs. of

scheduled Bank. However, the Contractor can deposit twenty five percentage of total security

deposit in the form of Govt. security (as mentioned in para 208 of Gujarat Public Works

Department Manual Vo.(1) or Term Deposits of Narmada Project duly transferred in the

Name of the Executive Engineer, or fixed deposit receipts in the name of the Executive

Engineer within a period of ten days form the / date of receipt of notification of acceptance of his

tender. If the security deposit is not paid within the above specified time, no work order will be

issued till the issue about delay is finally decided by the competent authority (b) (ii) The

Government shall be deemed to have been authorized to deduct the balance of fifty percentage

of the security deposit as specified in the tender form the amounts that become payable to the

contractor form the work done the contract form time to time, such deduction shall not exceed

ten percentage of the amount so payable and the whole amount paid in cash or by way of

deduction shall be held by Government by way of security deposit. For the works whose

estimated amounts is more that become payable to the contractor for the work done the

contract form time to time, such deduction shall not be held by Government by way of security

deposit. For the works whose estimate amount is more than rupees fifteen lacs, the Contractor

shall have to give the performance bond supported but F.D.R. or Unconditional. So that same

can be encased without giving any reason by the Executive Engineer Non Transferable and

Irrevocable Bank Guarantee of any schedule bank equivalent to five percentage of the

estimated amount put to tender along with the initial security deposits. All compensation,

Liquidated damages or other sums or money payable by the contractor to Government under

the terms of this contract shall be deducted form or recouped by the realization of a sufficient

part of his security deposit, or form the interest arising there form or performance bond form any

sums which may sums which may due or may become due by Government to the Contractor on

any whatsoever and whatsoever and whether in respect of this contract, any other contract or

otherwise. In the event of his security deposit being reduced by reason of any such deduction or

recumbent as aforesaid, the contractor shall within ten days thereafter, make good in cash or in

Government securities transferred as aforesaid, any sum or sums, required to make good the

shortfall in the amount of the security deposit. The securities deposit, when paid as above shall

at the cost of the depositor, do converted into interest bearing Government securities in the

name of Executive Engineer provided that the depositor has expressly desired this in writing.

This is subject to the condition that twenty five percentage of the total security deposit must be

held in the form of small saving schemes or Term Deposits of Narmada Project. If the full

amount of the security deposit to be considered as considered as cancelled and legal steps

shall be taken against the contractor for recovery of the amounts.

Fifty percentage of the Security Deposit along with performance bond shall become

refundable within fifteen days after the final completion certificate issued a per Clause-25. All

dues under this contract or other contract. or otherwise, including the royalty charge if "No Due-

Certificate" is not produced by the contractor shall be recovered form the final certificate is

issued as per clause-25. The remaining fifty percentage of the security deposit shall be

refunded after expiry of the Defect Liability period as per clause-33 after deducting there form

the amount of expenses, is any Government under this contract.

Performance Bond

(The date of his bond must not be prior the date of the instrument in connection with which it is

Principal (Contractor)

Sum of bond (express in words and figure)

Contract No. and date of contract

Know all men by these presents, that we, the Principal and surety above named are held and

firmly bound upto the ..................................... hereinafter called the Employer in the amount

stated for payment of which sum, well and truly to be made, we bind ourselves, our heirs,

executors, administrators and successors jointly and severally, firmly by these presents subject

to the provision of which the aforesaid Contractor on demand and without demand on a claim

being make by the Employer.

The condition of this obligation is such, that whereas the principals have entered in to a

contract with the Employer numbered and dates as Shown above? and hereto attached for the

Principal shall well and truly perform and fulfill all the undertakings, covenants, terms, conditions

and agreements of said contact during the original terms of the said Contract and extensions

there of that may be granted by the Employer with or without notice to the surety

and during the life or any guarantee required under the contract and also well and truly perform

and fulfill all the undertakings, covenants, terms, conditions agreements of the surety which the

employer may sustain by reason of failure or default on the paid of said Principal so to do.

We ........................................... further agree that agree that the grantee here. contained shall

remain in full force and effect the dues of the employer under or by for the validity of the said

Contract, and that it shall continue to be enforceable all the dues of the employer under by

virtue of the Contract have been fully paid and its claims satisfied or discharged or till the

Employer certifies that the terms and conditions of the Contract have been full and property

earned out by the said Contractor and accordingly discharges the grantee. Unless demand or

claim under this guarantee is made on us writing on or before the ............................. we shall be

discharged from all liability under this guarantee thereafter.

IN WITNESS WHERE OF the above bounded parties have executed this instrument under

their several seals on the date indicated above the name and corporals seal of each corporate

partly being hereto affixed and these presents duty signed by its undersigned representatives,

pursuant to authority of its governing body.

In the presence of witness individual

Attested Corporate surety

For and on behalf of the Employer

4. Mistake in contractor's Drawings

The Contractor shall submit such drawings as may be required and shall be responsible

for any discrepancies, errors omissions in any drawings other particulars supplied by him

notwithstanding that such drawings or particulars may been approved by Engineer.

5. Patent Rights etc.

The contractor shall fully indemnify the Governor of Gujarat against all actions, suits

claims demands, costs, charges expenses arising form or incurred by reason of any

infringement or alleged infringement, plan, of any letters patent, design, trademark or name

copyright or other protected rights in respect of any machine, plant, work materials thing or

system or method of using fixing working or arrangement used or fixed or supplied by contractor

but this in indemnity shall not extend or apply to any action suit claim, demand cost charges or

expenses arising form or incurred by reason of the use of the work or any part thereof otherwise

then in the manner of for a purpose contemplated by the contract all royalties and other similar

payments which may have to paid for the use of any machine, plants, work, material thing

system or method as aforesaid (whether payable in on sum or by installment or otherwise) shall

be covered by the contract price and payable by the contractor.

In the event of any claim or demand being made or suit brought against the Governor of Gujarat

in respect of any such matter or matters as all negotiations for the settlement of such claim or

demand and such action aforesaid the contractor shall be duly notified, thereof, and he shall

conduct or suit also be conducted by him subject if and so fat as Governor of Gujarat shall think

proper under the Supervision & Control of Governor of Gujarat through the officer duly

authorized on his behalf.

6. Excess over Tender quantities, Extra items & Variations in Specifications,

6.1 The Engineer-in-charge shall have power to make any late rations additions in or to the

original specifications drawings design instructions that may appear to him to be

necessary of advisable during the progress of the work and contractor shall be bound to

carry out the work in accordance with any instructions in this connection which to him in

writing signed by the Engineer-in-charge and such alternation shall not invalidate the

contract additional work which the contractor may be directed to do in the manner above

specified as part of the work shall be carried out by the contractor on the manner above

specified as part of the work shall be carried out by the contractor in the same conditions

in all respect on which the agreed to the work and at the same rate as are specified in

under for the main work

6.2 Except that when the quantity of any item exceeds the quantity as in the tender by more

than 30% contractor will be paid for the Quantity in excess of 30% at the rate entered in

the S.O.R. of the year during which the excess in quantity is first executed and for the

materials consumed in excess quantity the rate for the materials to be charged would be

the basic rate taken into account for tag the fixing the rate for the S.O.R. at above

instead of the rate stipulated in schedule-A.

6.3 If the additional or altered work includes any class of whirl for which no rate is specified

in these contract.

(i) At the rate derived form the item within the contractor which is comparable to the

one involving additional altered class of work where there are more than one comparable items,

the item of the contract which in nearest in comparison with regard to class or classes of the

work involved shall be selected and the decision of the superintending Engineer as to the

nearest comparable item shall be final and binding on the contractor.

(ii) If the cannot be derived in accordance with (i) above, such class of works shall

be carried out at the rate angered in the Schedule of Rates of the Division for the year in which,

the tender was received, increased or decreased by the percentage by which the tender

received increased or decreased by the percentage by which the tender amount is more or less

as compared to the amount arrived at the rates in the "Schedule of Rates" Divisions in the year

in which the tender was received. If the Schedule of rates calculated considering such items

which were included in the "Schedule of Rates of the Division for the year and or materials

concerned on such item the rate to be charged would be the basic rate taken into account for

fixing the rate in S.O.R. referred to above instead of the rate.

(iii) If is not possible to arrive at the rate form(i) and (ii) above, such class of work shall

be carried out at the rate decided by the competent authorities on the basis of detailed rate

analysis after hearing the contractor before as committee of two superintending Engineers

stationed at the same place or the nearest place.

6.4 If the additional or altered work, for which no rate is entered in the "Schedule or Rates"

of the Division is ordered to be carried out before the rate is agreed upon, then the contractor

shall within seven days of the date of receipt by him of the order of carry out the work, inform

the Engineer-in-charge does not agree to this rates, the shall be notice in writing be at liberty to

cancel his order to carryout such class of work and arrange to carry it out in such manner as he

may consider fit advisable, provided always that if the contractor shall commence work or inure

any expenditure in regard thereof before the rates shall have been determined as lastly herein

before mentioned, then in such cases he shall only be entitled to be paid in respect of the work

carried out or expenditure incurred by him prior to the date of the determination of the rate as

aforesaid according to such rate or rates as shall be fixed by the Engineer-in-charge. In the

event of the dispute the decision the Superintending Engineer of the Circle shall be final.

Where, however, the work is to be executed according to the designs, drawings and

specifications recommences by the contractor and accepted by the competent authority, the

alternation above referred to shall be within the scope of such designs drawings and

specifications appended to the tenders.

The time limit for the completion of the work shall be extended in the proportion that the

increase in the cost occasioned by alternations bears to the cost of the original contract work

and the certificate of the Engineer-in-charge as to such proportion shall final and conclusive.

7. Work man ship and materials :

The works shall be carried out in all respects with workmanship and materials of the best

and most substantial and approved qualities to the entire satisfaction of the Engineer who may

reject any plant, apparatus of material or work ship which slab in his opinion be of defective

quality any such rejection to be final and conclusive. The contractor shall at his own expenses

provide all material labour, haulage, power, tools, tackles and apparatus necessary to execute

and complete the works and plant in the manner aforesaid.

8. Use of work pending completion :

The Governor of Gujarat shall be at liberty at any time to put into beneficial use the

whole or any part of the work he may desire to use pending the formal completion and taking

over of the same.

9. Subletting of contract :

The contractor shall not without the consent in writing of the Governor of Gujarat under

the hand of the Engineer assign or sublet the contract nor make any sub contract with an

person or persons for the execution of any portions of the work other than for raw materials, or

for any part of the work of which the manufacturers are named on his contract.

10. Protection and liability for a accidents, Theft and Damage :

The contractor shall at all items until the commencement of the period maintenance as

provided in clause 16 property and sufficiently cover up and protect all materials delivered on

site form damage or injury by exposure to the weather and shall take every proper precaution

against accident, damage or injury on the same from any cause. The contractor shall be and

remain answerable and liable for all accident and damage thereto which until the

commencement of the period of maintenance as provided for under clause 16 may arise or be

occasioned by the acts or omissions of the contractor or his workmen, agents, servants or sub-

contractors and all looses and damages arising from such accidents damage or injuries and

aforesaid shall be made good in the most complete and substantial manner by and at sole cost

of the contractor and to the satisfaction of the Engineer.

Provided that should the Engineer certify, that the work has been completed but that owning to

circumstances over which the contractor has no control he work cannot be taken the contractor

shall nor be held liable for any loss of or damage to the work occasioned by such delay in taking

over and occurring more than one month after date of completion of the work as certified by the

Until the work shall be or deemed to be taken over as hereafter provided the contractor

shall also indemnify to Government of Gujarat from and against all claims and demands, suits

proceedings, cost and expenses in respect in respect of or in connection with any injury to

person or damage to property by whomsoever sustained or by defective for thefts of any

property of the Governor of Gujarat or of other committed by any employees of his own or his

subcontractors and shall be liable for the costs of replacing any property stolen.

11. Insurance :

Subject as hereinafter provided the contractor shall at his own expense insure and at all

times prior to the commencement of the period of maintenance keep insured against destruction

or damage by fire or earthquake storm and tempest such plant and materials ordered for the

work as may for the time being be upon the site for the full value of such plant and materials.

12. Materials brought on the site :

All materials tools and tackle brought to and delivered upon the site for the purpose of

the work shall from the time of their being so brought vest in and be the property of the

Governor of Gujarat but may be used for the purpose of the work but for that purpose only and

not on any account be removed or taken away by the contractor or any other person without the

express permission in writing of the Engineer but the contractor shall nevertheless (subject as

hereinafter provided) be solely liable and responsible for any loss or destruction thereof or

damage unless resulting from causes beyond the contractor's control not being causes

insurance against destruction or damage from which is provided for in clause 11.. The Governor

of Gujarat shall have a lien on such materials, tools and tackle for any sum which may to any

time prior to the completion of the works be due or owing to him the contractor under in respect

of or by reason of the contract and shall be at liberty to sell and dispose of any of such

materials, tools and tackle remaining after the completion of the works in such manner as he

shall think fit, and to apply the proceeds in or towards the satisfaction of such sum or sums so

due or owing as aforesaid but subject to such lien and power of sale and disposal such surplus

materials, tools and tackle shall being to the contractor and may be removed and disposed of by

him as he shall think fit after the lien is withdrawn by the Engineer-in-charge.

If the contractor shall at any time fail in the opinion of the Engineer to proceed with the

work with due diligence and expedition or shall refuse, neglect or omit to comply with any orders

given to him in writing by the Engineer-in-accordance with the provisions of the conditions or

shall commit any other breach of the provision of the contract, the Engineer shall be at liberty to

give notice in writing to the contractor to make good the failure neglect. omission or the

Engineer shall be at liberty to give notice in writing to the contractor to make good the failure

neglect. omission or breach complained of and should be contractor shall fail to comply with any

such notice within such period as may be prescribed in such period as may be prescribed in

such notice then and in such case the Governor of Gujarat shall be at liberty to employ

workmen other than those of the contractor to perform and execute the work in respect of which

the failure neglect or omission referred to in such notice shall have been committed or occurred.

If the Governor of Gujarat shall think fit, it shall be lawful for him to enter into a new contract with

any other persons, or person, for the execution of such part of the work as may not have been

executed and in that event the Governor of Gujarat shall without incurring any liability to the

contractor be entitled to use all or any of the materials, tools, tackle or there things which may

then be on site for the purpose of completing the work or any part there of and to provide any

additional materials, tools, or tackle required for the purpose and the cost of executing any such

work and providing any such materials shall be paid by the contractor to the Governor of Gujarat

Subject to and after satisfaction of the lien of the Governor of Gujarat for any sum due to

him by the Contractor for any expenses cost or charges incurred in the completion of the work,

all materials , tools, tackle or other thing remaining on the site and unsold after such completion

shall forthwith hereafter be removed by the contractor.

14. Replacement of Defective work or material :

If during the progress of the work the Engineer shall notify in writing to the contractor that

in his opinion the Contactor has executed any unsound or imperfect work, or has supplied any

materials inferior in quality to those stipulated for by the contractor, the contractor shall at his

own expense, within ten days of his receiving the notice proceed with due expedition to remove

or after and reconstruct or replace the work or as the case may be supplied fresh materials up

to the standard of the specification. In place of the work or materials

complained of by the notice (as the case may be) and in case the contractor shall fail to do so

the Governor of Gujarat intention so to do forthwith at the cost of the contractor remove the work

or materials complained of and perform all such work or (as the case may be) supply all such

materials in place of those complained of as may be necessary or proper in order to comply with

the contractor and the cost as certified by the Engineer of any such removed and performance

of work or supply of materials shall be paid by the contractor to the Governor of Gujarat on

demand provided always that nothing in this clause shall be deeded to derive the Government

Gujarat or effect any other rights or remedies under the contract or otherwise which I may have

in respect of such defects of deficiencies. No payment which have been made on account of

materials delivered or work executed shall be socked on as acceptance of such or any work or

15. Cutting away & making good :

The tender is include all necessary cutting and making good for the purpose of the

contract of the wood work, walk, floors-site of the site. The contractor win be held responsible

for and will have to make good at his own expanse to the satisfaction of the Engineer, any

damages to or disfigurement of the site which may have been caused the acts or omissions of

himself or his servants or agents in connection with the carrying out the contract.

16. Maintenance :

The Contractor shall make good at his own expense all defects "due to faulty design

material, or workmanship on the part of the contractor which may during a period of 6 calendar

months form the date of which the work is certified by the Engineer to have been brought into

beneficial use or if no such certificate is given from the date of the final payment for the work

under clause 20 (which period is hereinafter called the "the period of maintenance") develop

under proper use in the work or any part thereof by replacing plant materials or work or

otherwise as a may be necessary. Any such making in the work or any part thereof by replacing

plant materials or work or otherwise as may be necessary. Any such making good by the

contractor shall in no case relieve him form his liability to make good any further defect in these

work made good replace which made develop during the reminder of such period of twelve

months, if any such defects are clearly squired to prevent any recurrence of such defects. If any

defects or alterations which contractor shall become liable make good or make under this

clause by not made good or made good or make the same (as the case may be) a the risk and

expense of the Contractor, but without prejudice to any other right or remedies which the

Governor of Gujarat may have against the Contractor in respect of his default in making good or

making the same as aforesaid/and the cost of any such making good or making shall be paid by

the contractor to the Government of Gujarat on demand.

17. Contractor's Representative & workmen :

The contractor shall employ at lest on competent representative, whose name or names

shall have previously been communicated in writing to the Engineer by he contractor to

Superintend the carrying out the works. The said representative of) more then one shall be

employed then, one of such representative shall always be present on the site during working

hours and any written orders or instruction which the Engineer or his duly authorized

representative, whose name shall have been previously communicated in writing to the

contractor, may give to the said representative of contractor shall be deemed to have been

given to the contractor.

The Engineer shall be at liberty to object to any representative or person employed by

the Contractor in execution of or otherwise about the work who in the Engineers opinion, shall

misconduct himself or be incompetent or notice in writing requiring him to do so.

17.A Minimum age of persons employed and employment of donkeys or other animals :

(i) The contractor shall not employ any person who is under the age 12 years.

(ii) The contractor shall not employ donkeys or other animals with breaching of string or thin

rope. The breaching must be at lest three inches side and should be tape (Newer).

(iii) No animal suffering from sores, lameness or emaciation or which is immature shall be

employed on the word his name shall be removed form the list contractors.

(v) The Engineer shall remove form the work any person or animal found working which

does not satisfy these conditions and to responsibility shall be accepted by the Governor of

Gujarat for any delay caused in the completion of the work by such removal.

18. Submission of Samples :

The contractor shall not without written sanction of the Engineer use for the execution of

the work any materials plant or stores of any type of description other than those specified in his

tender. He shall if required to do so or at his options, deposit samples, at the Office where

Engineer for approval and the Engineer shall within 14 days or the receipt of the samples,

express in writing contract to his approval or otherwise of the samples deposited and all

materials, plant and stores used in the execution of the work, must be in

every away equal to the deposited samples. All the deposited samples will be returned to the

contractor within one away equal to the deposited samples. All the deposited samples will be

returned to the contractor within one month of the work being taker over.

19. Deduction from contract Price :

The amount or all cost of work, expenses; or other sums which under the contract shall

be payable by the contractor to the Governor of Gujarat from any moneys due or becoming due

by him to the contractor under contract, without-prejudice to the Governor of Gujarat. right to

recover the same by the ordinary process of law.

20. Terms of Payments :

Subject to any deduction which the Governor of Gujarat may be authorized to make

under the contract, the contractor shall be entitled upon the certificate of the Engineer to the

effect hereinafter stated payments of R.A. Bills shall be made to contractor as per items, in

measurable units executed according to the specifications.

It at any time the contractor shall be prevented for any period of not less than 30 days

from causes within the control of the Governor of Gujarat either first, from delivering on the site

any plant or materials ready in India for delivery or secondly from proceeding with the erection

at any plant or materials which he had already delivered & the site, the Governor of Gujarat

shall bear the cost of storage and protection, including insurance in accordance the clause ii, of

the plant and materials during such period in the first of such of contractor shall be entitled to

payment of 80% of the value certified as aforesaid of the plant or materials delivery of which

shall have been so prevented within one month from the date on which as certified by the

Engineer such plant or materials are so ready as aforesaid provided that all portions thereof

have been suitably and sufficiently marked as being property of the Governor of Gujarat and are

delivered into the custody of some person approved by the Engineer who has granted at receipt

Installments shall be due and payable by the Governor of Gujarat within one month from

the date of each certificate of the Engineer.

21. Certificate of Engineer :

Every application to the Engineer for a certificate must be accompanied by a detailed

claim in duplicate setting forth (in the order of the Schedule of price if any) particulars of the

Plant or materials delivered and work executed to the Engineer in accordance with the contract

shall be issued within 14 days of the application. No application for a certificate shall be made

within 14 days previous applications.

22. Certificate not to affect rights of the Governor of Gujarat of contractor :

The Engineer may be any certificate make any correction or modification in any

certificate previously issued by him any payment shall be regulated any adjusted accordingly,

No certificate of the Engineer shall nor shall any payments on accounts by the Governor of

Gujarat the Contractor, nor extension of time for the execution of the work by contractor which

may be ranted by the or behalf of the Governor of Gujarat affect or prejudice any of the lights, of

the Governor of Gujarat against the contractor under or relieve him any of his obligations for or

in respect of the due performance of the contract, or be interpreted as approval of work done or

of materials supplied.

23. Suspension of work :

The Governor of Gujarat shall any to the contractor all proper expenses arising from

suspensions of the work by order in writing of the Engineer or any other officer on behalf of the

Governor of Gujarat unless such suspension is due of some default on the part of the contractor

or any subcontractor under him.

24. Damages for delay in completion :

(i) If the Contractor fails to complete the work under contract by the stipulated date, he

shall pay liquidated damages of Rs.0.1 percentage of the contract value per day form the date

of delaying the said work up to the date of completion and banding over to the Government.

(ii) However also if the contractor fails to complete and part of the work Proportionate to

by the time in relation to the value of such part, he shall pay Liquidated damages per day from

the date of delaying the said part of the work up to the date of completion or the said designated

part at the rates shown in the said schedule of the contract value of such part for such failure till

the said designated part is completed.

(iii) It execution or on any other ground he shall apply in writing to the Ex. Eng. before

the (iii) The agree gate maximum of liquidated damages payable under this clause shall not

exceed Rs. 0.1 percentage of contract value per day and shall be subject to the maximum

amount of ten percent of the estimated amount put to tender.

(iv) Delays requiring payment of ten percent liquidated damages of the amount put to

tender for performance bond in forfeiture of works estimated to cost more than Rs. 15 lacs, for

performance) and registration of the contractor shall also be kept in abeyance of three years

form the date as fixed in all such cases.

24.A If the contract shall desire an extension of the time for completion of work on the ground

of his having been unavoidably hindered in execution or on any other ground he shall apply in

writing of the Ex. Eng. before the expiration of the period stipulated in the tender or before

expiration of 30 days from the date on which he was hundred as aforesaid on with the cause for

making for extension occurred which ever is earlier and the Ex. Eng. may if in his opinion. There

are reasonable and bona fide grounds for granting. And extension grant such extensions as the

thinks necessary or proper. The decision of the Ex. Eng. in his matter shall be final.

No applications for extension of time for completion of work shall be considered unless it

is received by registered post in the office of the Executive Engineer or left at his office and

obtained receipt there of duly signed by the Executive Engineer or his nominee authorized in

The date of receipt of application by the Executive Engineer, shall be considered as the

date of application for the purpose of counting the period as mentioned above.

24.B "If the contractor or his workmen or servants shall break, deface injure or destroy and

part of the building or the work in question in/or which they may be working or any building road

fence, enclosure or glass-land or cultivated ground contingence to the premises on which the

work or any part there is being executed or if any damage shall be done to the work form any

cause whatever before completion of the work or before the completion of the maintenance

period whichever is later or any damages occurred caused due to normal flood or rain or if any

imperfection become apparent in it within three months from the grant of a certificate of

completion, final or otherwise by the Engineer-in-charge, the contractor shall make good the

same at his own expenses or in default, the Engineer-in-charge may cause the same to be good

by other contractor and deduct expenses (of which the certificate of the Engineer-in-charge shall

be final) from any sums that may then be due or may thereafter become due to the contractor or

from his security deposit or the proceeds of sale thereof a sufficient portion thereof".

24.C Force Major Clause :

Neither party shall be liable to the other for any toll or damage occasioned by or arising

out of acts of God such as Unprecedented flood, Volcanic eruption, earthquake or other

convulsion of nature and other acts such as but not restricted to general strike invasion, the acts

of foreign countries, hostilities, or war like operations before or after declaration of war, rebellion

military or usurped power which prevent performance of the contract and which could not have

been foreseen of avoided by a prudent person.

Note : Unprecedented flood means *here flood crossing the Hi Flood Level of the past-year (s)

which is on the available record.

Modified Vide R&BD.G.R. No. TNC-1096-IB-143-(16)-C dated 11-1-99)

25. Time of taking over :

The work shall for the purpose of all the provisions of these conditions be deemed to

have been completed and taken over by the Governor of Gujarat when the Engineer, shall have

certified in writing that it has been completed in accordance with the contract conditions and

such certificate shall not be unreasonable with held nor shall the Engineer delay its issue on

account of commissions of defects which in his opinion do not effect the efficient use of work but

such issue shall be without prejudice to the contractor's liability to make good any such

omission and defects with the greatest possible expedition.

26. Death or Bankruptcy :

The if the contractor shall die or become insolvent or bankrupt or have a receiving order

made against him or compound with or make on proposal carrying on his business under

inspection or for the benefit of his creditors or commit and act of insolvency or bankruptcy, or

being a corporation bordered to be wound up or have a received or representative to determine

the contract and the Governor of Gujarat may in that event complete the contract in such time

and manner and by such person as he shall think fit.

27. Disputes to be referred to Gujarat Public Works Disputes Arbitration Tribunal :

The disputes relating to this contract in so far as they fall within the jurisdiction of Gujarat

public works Disputes arbitration tribunal shall be referred to the said tribunal of Gujarat State.

However the reference to Arbitration Tribunal under this clause will not stay fulfillment of

obligations of the contractor or rights of the Engineer-in-charge under this contracts, unless

otherwise ordered to the contrary by the said Tribunal as Interim Relief measure.

(The following clause is to deemed included in this conditions only when Plant or Machinery is

included in the contract.)

28. Contract Drawings :

The contractor shall submit to the Engineer for his approval on or before the dates

stipulated for the purpose in the specification copies of all the drawings of the general

arrangements of the plant as set out therein and of such detail drawings as may be reasonably

Within Fourteen days from the receipt, by him of such copies the Engineer shall signify

his approval or otherwise of the same and if he does not do so he shall be doomed to have

approved thereof.

Within Fourteen days from the notification by the Engineer to the contractor of his

approval such copies, of in the absence of such notification within-thirty days from the receipt of

such copies, the copies in ink on tracing cloth, or Ferro Gallic prints mounted on cloth, of ail

drawings as approved shall be supplied to the engineer by the contractor respective and shall

there upon the signed by the contractor and become there property of the Governor of Gujarat.

Such signed copies of the drawing shall not be departed from in any way whatsoever

except with the written permission of the Engineer, During the execution of the works of the

signed copies shall be always kept available for reference on the site. In the event of the

Contractor desiring to keep in his own possession a signed copy of the drawings as approved

the shall supply three copies instead of two and in this case the Engineer shall sign the third

copy air I return the same to the Contractor.

29. Manner of Execution, Quality of materials etc. :

The plant shall be manufacture, constructed, provided, put in position and maintain in-

fore best and most substantial and workmen like manner and materials of the best and

approved qualities having regard to the respective uses.

30. Test on site :

In all cases where the special conditions are provided for tests on the site where there of

plant materials on workmanship the Governor of Gujarat except where otherwise specifically

stipulated shall provide free of charge such layout materials fuel stores, apparatus and

instruments as may be requisitioned from time to time efficiently to carryout such tests in

accordance with the condition.

Where electrical energy is required for tests on site and supply is available on the site

form an existing installation such electrical energy shall be supplied to the contractor by the

Govt. free of charge at the pressure and frequency of the ordinary supply is available the

electrical energy necessary for such tests shall be provided by the contractor.

31. Delivery of plants & materials :

No. plant materials shall be tendered for delivery until and intimation is writing shall have

been given to the contractor by the Engineer that Governor of Gujarat is ready to take delivery.

32. Tests on completion : On the completion of the works on the site is accordance with the

contract the contractor shall give the Engineer notice in writing of such completion. The

Engineer shall after receipt of such notice by notice in writing under his hand for date and an

hour on that date fore the making of the test on site if any such are provided for the contract".

The contractor shall carry our such tests upon the date and at the hour so fixed and if

the Engineer or his authorized representative shall attend on that date at that hours such test

shall be carried out in the presence the Engineer or such representative.

If any portion of the plant fails under the tests to satisfy the contract conditions similar

tests according to the contractor shall pay to the Governor of Gujarat all reasonable expenses to

which he may be put by such test.

If the test or may repeated tests so required as aforesaid be not made by the contractor

on the date fixed as aforesaid or the same by the Engineer may proceed to make such test

himself at the contractor's risk and expense.

If in any test under this clause the plant tested shall fail to satisfy the contract conditions

the Governor of Gujarat shall as from the date stipulated by the contract for completion

nevertheless have the right of using such plant until the same shall satisfy such conditions and

such Use shall be at the contractor's risk. In the event of the 1 question where there the to

Arbitration as any portion of the plant the Engineer may certify to be capable of being use on

condition of paying to the submitted contractor a sum calculated (according the period of the

use) at the rate of 5 percent per annum upon the amount with held or deducted in respect of

33. Rejection of Defective Work :

If the works, or any portion thereof shall not the opinion of the Engineer on the stipulated

tests (if any) being made is accordance with the contract satisfy the contract conditions within

three months after the date stipulated for completion which the works in his opinion fail to

comply with the contract conditions and requiring the contract to make good, after or replace the

same within such time to be specified in the notice as the engineer may consider reasonable

and the contractor shall make good, after or replace the same as required by such notice and

such as to make it employ with the requirements of the contract condition within the time so

specified. Should be he fail to do so within that the Governor of Gujarat may make good after of

same as so required any the cost of such making alteration good or replacement (less) in case

of any replacement any such, which would have become due to the contractor under the

contract in respect of the works replaced and which shall not have been paid to his) shall be

paid by the contractor to the Governor of Gujarat demand or should the Governor of Gujarat not

make good after of replace any detective works in respect of which notice as aforesaid shall be

given within six weeks from the date of the given of such notice the contractor shall repay the

Governor of Gujarat all sums (in any) paid by him to the contractor in respect of such works.

Nothing contained in this clause shall prejudice or affect the rights of the Governor of Gujarat

under the contractor whether in the way of enforcement of penalties of otherwise in respect of

any delay in the completion of this work.

34. Use of plant of works pending making good :

If at expiration of the time specified for making good, altering or replacing the plant of

works in any notice given by the engineer to the contractor under the last proceeding clause the

contractor shall not have duly made good. altered or replaced the same in accordance with the

contractor the Governor of Gujarat shall be at liberty if he thinks fit to make use of the same for

such time as shall be reasonably sufficient according to the circumstances enable him, to make

good after or replace the same (whichever he may see fit to do) provided that in respect of the

period of such user, the Govt. of Gujarat shall not be entitled to any damages under clause

of these conditions land in the case of complete replacement the contract shall be entitled to be

paid reasonable sum for same.

35. Workmen's compensation in case of injury :

The contractor shall be responsible for any compensation and shall pay to his workmen

compensation payable for injuries under the workmen's compensation Act 1923 (VIII of 1923)

hereinafter called the said Act. If such compensation is paid by Government form the contract

under sub-section. (1) of section 12 of the said Act, on behalf of the contractor. It shall be

recoverable by Government from the contractor under sub section (2) of the said section such

compensation shall be recovered in the manner laid down in clause 3 and 19 of the condition of

36. The Apprentices :

The contractors shall afford or procure as the case may be every facility to Indian

apprentices for practical training in the factory.

Owned managed controlled or patronized by so as to enable the Indian apprentices to

acquire full knowledge of the technique and work of their trade industry calling or profession.

37. Set off Clause :

Any sums of money due to the contract (including the security deposit returnable to the

contractor under this contract shall be appropriated by the Government and shall be set off

against any claim of the Government for the payment of such of a money arising out of or under

any other contract made by the contract with the Government. When no such amount for

purpose of the recovery form the contract against any claim of the Government is available such

a recovery shall be made from the contractor as arrears of land revenues.

38. Appointment of Local Labourers :

The contractor should as far as possible obtain the requirement of labourers skilled and

unskilled from the nearest employment exchanges so as to utilize the local employment

potential. If there are no local employment exchange or such exchanges are not able to provide

the required labourers locally. suitable local should be utilized to the maximum extent possible.

39. Fair wages :

If a contractor fails to within 7 (seven) days to the labours(s) worker(s) the minimum

wages prescribed by the Government under the minimum wages Act.1949 as in force form time

to time the Executive Engineer or the officer of a equal rank shall be at liberty to deduct the

amount payable to the labourer(s) workers form his (contractor's) bill or deposit(s) payable on

account by the contract alter making due inquiries and shall not be entitled to any aforesaid.

Before or compensation on account of any loss that the he (contractor) may have to incur of the

action as aforesaid. Before the action a aforesaid is enforced notice in writing to the contractor

shall be issued by the Executive Engineer or the officer of the equal rank to pay the wages as

per minimum wages Act enforce at the relevant time. If the contractor does not act as aforesaid

within seven days then the action contemplated as above shall be taken against him.

Signature of contractor/s Executive Engineer

Specifications for Electrical Works in Government Building

Subject to the General condition of Contract in force (1986) General

1. Wirings Rule :

The installation generally shall be carried out in conformity with relevant Indian standard.

Specification of and code of practices prevalent, Indian Electricity Rules, 1956 and Indian

Electricity Act. 1910 as amended from time to time.

2. Definition :

The definition of terms shall be in accordance with Indian standard code of Practice for

Electrical wiring installation IS-732-1982 except for the definition of point in case of internal

Electrical Installation. For definition of point wiring and measurement of Electrical works IS-

5908-1970 shall be referred to.

3. Voltage and Frequency of supply :

All current consuming devices shall be suitable for frequency of 50C/s and systems of

voltage manual for unless otherwise specified.

4. Layout of wiring and its description :

(i) The wiring shall be carried out as per schedule "Power" wiring must be in screwed

conduit and shall be kept separate and distinct from lighting wiring. All wiring must be done on

the distribution system with main and branch distribution boards at convenient centers and

without isolated fuses. All conductors shall be run as far as possible along the walls and ceiling

as to be easily accessible and capable of being thoroughly inspected. The balancing of circus

will be arranged before hand by the Ex. Engineer Electrical Division.

(ii) Within one month of the taking over the installation, the contractor shall supply to the

Ex. Engineer Elect. Division a complete set of wiring diagrams of the same on drawings to be

supplied when available by the Executive Engineer Electrical Division and to the satisfaction of

the Ex. Engineer, Elect. Dept. and these wiring pains shall be "Drawings" within the meaning of

the term as used in the General conditions of contract.

5. Conductors :

All conductors unless otherwise specified shall not be less than 1.5 sq. mm. for point

wiring and 2.5 sq. mm for mains conductors for power and lighting circuits shall be adequate

size to carry the designed circuit load without exceeding the permissible thermal limits for the

installation, and such sizes will be stipulated in specifications and or drawings.

6.1 All cables shall conform to relevant Indian Standards.

6.2 Conductors of all cables except the flexible cable shall be of alluminium. The smallest

aluminum conductor for the final circuit shall have nominal cross sectional area of not less than

1.5 sq. mm. The minimum size of the aluminum conductors for power wiring shall be 4 sq. mm.

6.3.1 Conductors of flexible cables shall be of copper the minimum cross sectional area of

such a cables shall be 14.0193 mm. the Flexible cable shall have uniform and adequate

6.3.2 Unless the flexible cables and conductors are protected by armounr or though rubber of

PVC Sheath, theses shall not be used in workshops and other places where they are liable to

mechanical damage.

6.3.3 Core flexible cables shall be used for connecting single phase Appliances or phase,

natural & earth connections.

7. Fall of Potential :

The Cross sectional area of all conductors inside buildings shall be so proportioned to

their lengths that the drop in voltage between main fuses and the farthest point or any lamp

shall not exceed three percent of the voltage of the consumer's with all the consuming devices

7.1 If the Cable Size is increased to avoid the voltage drop in circuit current rating of the

cable shall be more than that for which circuit is designed. In each circuit or sub circuit or sub

circuit every cable shall have current higher than the full load current.

8. Ratings of lamps and fans socket outlets : Points and exhaust fans

8.1 Incandescent lamps installed in residential and non-residential building shall be rated at

60 watts & 100 watts respectively.

8.2 Table fans and ceiling fans shall be rated at 60 watts, exhaust fan shall be rated at

watts and 1000 watts respectively for the purpose of load assessment unless actual values of

the load are, know or specified.

9.1 Before the installation is commissioned following tests shall be carried out.

(1) Insulation Resistance Test.

(2) Polarity Tests of Switches

(3) Earth continuity tests

(4) Earth electrodes Resistance test.

9.2.1.1 The insulation Resistance shall be measured between earth and the whole

system of conductors or any section there of with all fuses in place and all switches close, and

except in earthed concentric wiring all lamps in position or both poles of installation otherwise

electrically connected together. A direct current pressure of not less than the twice working

pressure provided that it need not exceed. 500 volts for medium voltage circuits where the

supply is derived from three wire D.D or a ploy phase A.C. system, the neutral pole of which is

connected to earth either direct or through added resistance, the working pressure shall be

deemed to be that which is maintained between the phase conductor and the neutral.

9.2.1.2 The insulation sentence shall also be measured between all conductors to one

pole or phase conductor of the supply and all the conductors connected to the neutral or to the

order pole or phase conductors of the supply with all lamps in position and switches in "OFF"

position and its value shall be less than specified in sub-clause 9.2.

9.2.1.3 The insulation resistance in Mega-ohms measured as above shall no be less

than 50 mega ohms divided by the number if outlet or when PVC insulated cables are used for

wiring 12.5 mega ohms divided by number of outlets.

9.2.1.4 Where a whole installation is being tested a lower value than that given by the

formula subject to a minimum of 1 mega ohm is acceptable.

9.2.1.5 A preliminary and similar test may be made before lamps, ect., . are installed and

in this event the insulation resistance to earth should be not less than 100 mega ohms divided

by the number of outlet or when PVC insulated cables are used for wiring 25 mega ohms

divided by number of outlets.

9.2.1.6 The term "Outlet" includes every switch except that a switch except that a switch

combined with a socket outlet appliance or lighting, fitting is regarded as one outlet.

9.2.1.7 Control rheostat heating and electric sign may, if required, be dis-connected from

the circuit during the test, but in that event the insulation resistance between the case or frame

work, and all live parts of each rheostat, appliance and sign, shall be not less than that specified

in the relevant Indian Standard Specification or where there is no such specification shall be not

less than half a mega ohm.

9.2 Polarity Test :

9.2.2.1 In a two wire installation a test shall be made to verify that all switches in every

circuits have been fitted in the same conductor through out & such conductor shall be labeled or

marked for connection

to the phase conductor or to the non-earthed conductor of the supply is fitted in a conductor

which is labeled or marked for connection to one of the phase conductor of the supply.

9.2.2.2 In a three wire or a four wire installation a test shall be made to verify that every

non-linked single pole switch is fitted in a conductor which is labeled or marked for connection to

one of the phase conductor of the supply.

9.2.2.3 The installation shall be connected to the supply for testing. The terminate of all

switches shall be tested by a teat lamp one lead of which is connected to the earth. Glowing of

test lamp to Us full brilliance when the switch is in on position irrespective of appliance in

position or not shall indicate that the switch is connected to the right polarity.

9.2.3 Earth Continuity Test :

The earth continuity conductor including metal conduits and metallic envelops of cables

in all cases shall be tested for electric continuity and the electrical resistance of the same along

with the earthing lead but excluding any added resistance or earth leakage circuit breaker

measured form the connection with the earth electrode to any point in the earth continuity

conductor in the completed installation shall not exceed one ohm.

9.2.3.1 Earth Dlectrode Resistance Test :

Earth electrode Resistance test may be carried out by magger Earth Testers containing

a direct reading ohmmeter, a hand driven generator and auxiliary electrodes.

9.3 On completion of an electric installation (addition and alteration) a certificate shall be

furnished by the contractor countersigned by the certified Supervisor under whose direction

supervision the installation was carried out. This certificate shall be in the prescribed form as

given in Appendix-B in addition to the test certificate required by Local Electrical Supply

10. Joint and looping back :

Unless with the sanction of Ex. Engineer, Electrical Divisions all joints in conductor shall

be means of approved mechanical connectors in suitable and approved junction boxes but

looping back system shall be preferable. in wiring unless otherwise specified phase and live

conduct shall be looped at the switch box where a neutral conductor can be looped form light,

fan or socked in non-residential buildings neutral and earth continuity wire shall be brought to

each of 'the switch boards should be of adequate size to accommodate at least one number of

Amps, socket outlet and control switch in future.

Main Switchgears, Switch Board and their location :

11.1 All main switches (other hart lose of iron clad pattern) carrying current of 10 Amp. and

above shall be twitted for back connections and shall be suitable protected.

11.2 AH switches and circuit breakers shall be constructed in accordance with the I.S. 4237-

1967. General requirement for switchgear and conrtol gear for voltage not exceeding 1000 volts

and other relevant I.S. provided also that spring shall be either of phosphor bronze or if steel

shall be copper or Nickel plated and that handle shall the so fastened that they do not tend to

unscrew 01 become boss.

11.3 All main switches shall be either of metal cad enclosed pattern of any insulated enclosed

pattern which shall be fixed at close proximity to the point of entry of supply.

11.4 Switch boards shall net be erected above gas, stoves, or within 2.5 mm of any washing

unit in the washing rooms of laundries or in the bath rooms, lavatories, toilets or kitchens.

11.5 Switch boards, if unavoidably fixed in places likely to be exposed to weather, to drip or to

abnormal moose temperature the outlet casing shall be weather proof and shall be provided

with glands or bushing of adopted to receive screwed" conduit according to the manner in which

cables are run P/C and double flanged bushes shall be fitted in the holes of the switches for

entry and exit of wires.

11.6 A Switch board net he installed so that its bottom is within 1.25 mm above the floor

unless the front of the switch board completely enclosed by a door or the switch board is

located in a position to which only authorized persons have access.

11.7 Switch boards shall be recessed in the wall if so specified in the schedule of work or in

the special specification. The front shall be fitted with hinged panel of other suitable

material such as bakelite in wood frame with locking arrangement, the buts surface of

door being flush with the walls. Ample room shall be provided at the back for

connections and at the front between the switchgear mountings and the door.

11.8 Equipments which are on the front of a switch board shall be so arranged that

inadvertently personal contact with live parts in unlikely during the manipulation of

switchgears. changing of fuses or like operations.

11.9 No holes other than the holes by means of which the panel is fixed shall be drilled closer

than 1.3 from any edge of the panel.

11.10 The various live parts, unless they are effectively scroended by substantial barriers of

non hydroscopic, nomiammbale insulating material, shall be so spaced that space shall

not be maintained between such parts and earth.

11.11 The arrangement of gear shall be such that they shall be readily accessible and their

connections to all instruments and apparatus shall also be traceable.

11.12 In every case in which switches and fuses are fitted on the same pile, these fuses shall

be so arranged that the fuses are not alive when their respective switches are in the off

11.13 No fuses other than fuses in instrument circuit shall be fixed on the back of or behind a

switch board panel of frame.

11.14 All the metal switchgears and switch boards shall be painted, prior to erection with one

coat of antiruse primer, After erection they shall be painted with two coats of approved

enamel or alluminium paint as required on all sides wherever accessible.

11.15 All switch boards connected to medium voltage and above shall be provided with

"Danger Notice Plate" conforming to relevant Indian Standards.

12. Control at Point of Commencement of Supply :

12.1 There shall be a linked man switchgear with fuse on each live conductor of the supply

mains at the point of entry. The wiring through out the installation shall be such that

there is no break in the natural shall also be distinctly marked. In this connections Rule

32(2) of the Indian Electricity Rules, 1966 (See Appendix-A_ shall also be referred.

12.2 The main switchgear shall be situated as near as practicable to be termination of

services line and shall be easily accessible without the use of any external aid.

12.3 On the main switchgear, where the conductor of a two wire system or any earthier

neutral conductor of a multi wise system or a conductor which is to be connected

thereto, an indication of a permanent nature shall be provided to identify earthier neutral

conductor. In this connection Rule 32(1) of Indian Electricity Rules, 1956 (see appendix

'A') shall be referred.

13. Switch Board & Distribution Boards :

I Metal clad switch gear shall preferably be mounted on any of the following types of

13.1 Hinged type Metal Board :

There shall consist of a box made of sheet metal not less than 2 mm thick and shall be

provided with a hinged cover to enable the board to swing open for examination of the

wiring at the back. The joints shall be welded. A teak wood board, thoroughly protected

both inside and outside with good insulating varnish conforming to

IS : 347-1952 specification for varnish sheiac for General purpose and of not less than

6.5 mm thickness shall be provided at the back for attachment of incoming and outgoing

cables. There shall be a clear distance of not less than 2.9 cm between the teak wood

board and the cover, the distance being increased for larger boards in order that on

closing of the cover, the insulation of the cables in not subjected to damage and no

shoat length of cables is subjected to excessive twisting or bending

in any case. The board shall be security fixed to the wall by means of rag bolts, plugs or

wee den Gut ties and shall be provided with a locking arrangement and an earthing stud.

All wires passing through the metal board shall be bunched. Alternatively, hinged type

metal boards shall be made of sheet covering mounted on channel or angle iron frame.

Note : Such type of boards are particularly suitable for small switch-boards for mounting metal-

clad switchgear connected to supply at low voltages.

13.2 Fixed type Metal Boards :

These shall consist of an angle or Channel of iron frame fixed on the wall or on floor and

supported on the wall at the top if necessary. There shall be a clear distance of one

metre in front of the switch board. If there are attachments of base connections at the

back of the switch board Rules 51(1)c) of Indian Electricity Rules, 1956 shall apply

NOTE : Such type of boards are particularly suitable for large switchboard for mounting large

number of switchgears or higher capacity metal clad switchgears of both.

13.3 Teak wood Boards :

For small installation connected to a single phase 230 volts supply teak wood boards

may be caused as main boards or sub-boards. These shall be of seasoned teak or other

durable wood with solid back impregnated with varnish of approved quality with all joints

13.4 In large size medium voltage installations, before proceeding with the actual construction

of the boards proper drawing showing the detailed dimensions and design including the

disposition of the mounting a which shall be symmetrically and neatly arranged for

arriving at the overran dimensions shall be prepare and approved by the engineer-in-

13.5 Recessing of Boards :

Where so specified the switch boards shall be recessed in the wall. The front shall be

fitted with a hinged panel of teak wood or other suitable materials, such as bakelite, or with

unbreakable glass doors in teak wood frame with locking arrangement, the other surface off the

doors being flush with the walls, ample room shall be provided at the back for connection and at

the front between the switchgear mountings.

13.6 Arrangement of Apparatus :

a) Equipment which is on the front of a switch board shall be so arranged that inadvertently

personal contract with live parts is unlikely during the manipulation of switches, changing

of fuses or like operation.

b) No apparatus shall project beyond any edge of panel. No fuse body shall be mounted

within 2.5 cm of any edge of the panel and no hole other than holes by means of which

the panel is fixed shall be drilled closer than 1.3 cms from any edge of the panel.

c) The various live parts unless they are effectively screened by substantial barriers of non-

hydroscopic, non inflammable insulating material, shall be so spaced that an are cannot

maintain between such parts and earth.

d) The arrangement of the gear shall be such that they shall be readily accessible and their

connections to all instruments and apparatus shall be so spaced that an are cannot

maintain between such parts and earth.

e) The arrangement of the gear shall be such that they shall be readily accessible and their

connection to all instruments and apparatus shall also be easily traceable.

f) In every case in which switches and fuses are fitted on the same pole, these fuses shall

be so arranged that the fuses are not alive when their respective switches are in the

'OFF' position.

g) No fuses other than fuses instrument circuit shall be fixed on the back of or behind a

switchboard panel or flame.

13.7 Marking of Apparatus :

a) Where a boards is connected to voltage higher than 250 volts, all the apparatus

mounted on it shall be marked in the following colours to which the apparatus or its

different terminal may have been connected.

Alternating Current Direct Current

Three-phase-red Three wire system-2 otherwise

Yellow & blue Positive red & negative blue

Natural-black Natural-black

Where fuse-wire three phase wiring is done, the neutral shall be in one colour and the

other three wires in another colour

b) Where a board has more than one switch shall be marked to indicate which section of

the installation it controls)

c) All markings required under the rule shall be clear permanent.

13.8 Main & Branch Distribution Board :

13.8.1 Main and branch distribution boards shall be any type mentioned in 13.1, 13.8.1. Main

and branch distribution boards shall be of any type mentioned in

13.8.2 Main distribution boards shall be provided with a switch or air circuit breaker on each

pole of each circuit, a fuse on the phase or live conductor and a link on the neutral or

earthed conductor of each circuit. The switches shall always be linked.

13.8.3 Branch Distribution Board :

13.8.3.1 Branch distribution boards shall be provided with a fuse of a miniature circuit breaker of

both the (adequate rating-setting chosen on the live conductor of each circuit and the earthed

neutral conductor shall be connected to a common line and be capable of being disconnected

individually for testing purposes. At least one spare circuit of the same capacity shall be

provided on each branch distribution board.

13.8.3.2 In residential installations, lights and fans may be wired on a common circuit such sub

circuit shall not have [more than total after points of lights, fans and socket outlets/The load of

such circuits shall be restricted to 800 watts. III a separate of an circuit is provided the number

of fans in the circuit shall not exceed ten. power sub-circuits shall be designed according to the

load but in no case shall there be more than two outlets on each sub-circuits

13.8.3.3 In industrial an other similar installations requiring the use of group control of switching

operation, circuits, for (socket outlets may be kept separate from fans f<v>n lights. Normally

fans and lights may be wired on a common circuit, however, if need is let separate circuits may

be provided for the two. The road on any law voltage sub circuit shall not (exceed 3000 Watts.)

In case of new installation, all circuits and sub-circuits shall be designed by making provision of

20 (percent increase in load due to any future modification. Power sub-circuits shall be designed

according to the load but in no case shall there be more than four outlets in each sub-circuits

13.9 Installation of Distribution Boards :

13.9.1 The distribution fuse-boards shall be located as near as possible to the centre of the

load they are intended to control.

13.9.2 These shall be fixed on suitable stanchion or wall and shall be accessible for

replacement of fuses.

13.9.3 These shall be of either metal-clad type, or damp situations, they shall be of the weather

proof type and if instated where exposed to explosive dust, vapour or gas, they shall be of lame

13.9.4 Where two or more distribution fuse boards feed low voltage these distribution boards

(1) Fixed not less than 2 mm apart or

(2) Arranged so that it is not possible to open two at a time, namely they are interlocked and

the metal case is marked Danger 415 volts or (3) installed in a room of enclosure

accessible to only authorized person.

13.9.5 All distribution boards shall be marked lighting, power as the case may be and also

marked with the voltage and number of phases of the supply Each shall be provided with a

circuits list giving details of each circuit which it controls and the current rating of the circuit and

size of fuse element.

13.9.6 Triple pole distribution boards shall not be generally used for final circuit distribution

unless specification approval of Engineer-in-charge is obtained in special cases where use of

Tripple pole distribution boards are inevitable they shall be of H.R.C. fuse type only.

13.10 Wiring and Distribution Board :

13.10.1 In wiring a branch board, total load of the consuming devices shall be divided as

far as possible, evenly between the number of ways of the boards leaving the spare circuit for

future extension.

13.10.2 All connections between pieces of apparatus or between apparatus and terminal

son a board shall be neatly arranged in a definite sequence following the arrangement of the

apparatus mounted thereon, avoiding unnecessary crossing.

13.10.3 Cables shall be connected to a terminal only by soldered or welded or crimped

lugs using suitable sleeve, lugs or ferrules unless the terminal is such a form that it is possible to

securely clamp them without the cutting away of cable strands.

13.10.4 All bare conductor shall be rigidly fixed in such a manner that a clearance of at

least 2.5 cms. is maintained between conductor of opposite polarity or phase and between the

conductors any material other than insulating material.

13.10.5 If required a pilot lamp shall be fixed and connected through on independent

single-pole switch and fuse to the bus-bars of the board.

13.10.6 In a hinged type board, the incoming and outgoing cables shall be fixed at one or

more points according to the number of cables on the back of the board leaving suitable space

in between cables and shall also, if possible be fixed at the corresponding points on the switch

board panel. The cables between these points shall be arranged to form a "U" or "S" shaped

loop which shall be of such length as to allow the switchboard pannel to swing through an angle

of not less then

14. Capacity of Circuits :

14.1 Lights and fans may be issued on a common circuits and such a circuit shall not have

more than a total of ten points of lights, fan and socket outlets or a load of 800 watts whichever

is less. The power circuits shall be designed with a maximum of two outlets per circuits

generally when load is not known or specified. In non-residential buildings at important District

centres however one outlet per circuit may be preferred. The circuit shall be designed based on

the loading of the circuit where not specified the load shall be taken as 1 kw per outlet, where

the load is more than 1 kw it should be controlled by a isolator switch or miniature circuit

15. Passing Through walls and floors :

15.1 Where conductors pass through walls one of the following methods shall be employed.

Care shall be taken to see that wires pass very freely through protective pipe of box and that the

wires pass through in a straight line without any twist of cross in wires, on other ends of such

(a) A teak wood box extending through the whole thickness of the wall shall be buried in

the wall and casings or conductors shall be carried so as to allow 1.3 cms air space on three

sides, of the casing conductor.

(b) The conductor shall be caned either in a rigid steel conduit conforming to *IS : 1653-

1964 specification for Rigid Steel conduits of Electrical wiring (Revised) or a rigid non - metallic

conduit conforming to *IS : 2609-1963 specification of Rigid Non-Metallic conduits for Electrical

Installations, or in a porcelain tube of such size which permits easy drawing in. The end of

conduit shall be neatly bushed with porcelain, wood or other approved material.

(c) Insulated conductors while passing through floors shall be protected form mechanical

injury by means of rigid steel conduit (see *IS 1653-1964) to a height not less than 1.5 mm

above the floors and flush with the ceiling below. This steel conduit shall be earthed and

securely bushed.

15.2 Where a was tube passed outside a building so as to be exposed to weather the outer

end shall be belt mounted and turned downwards and portly bushed on the open end.

16. Fixing to Walls and Ceilings :

Plugs for ordinary walls or ceilings shall be of while seasoned teak or other approved

hardwood not less than 5 cm long 2.5 c.m. square on his inner end and 2 c.m. square on the

outer end. They shall

be cemented into walls to within 7.5 mm of the surface, the remaining being finished

according to the nature of the surface with plaster of lime punning.

16.1 Where owing to irregular crossing or other reasons the plugging of the walls or ceiling

with wood plugs presents difficulties, the weed casing weed pattern, metal conduit or

clear (as the case may be) shall be attached to the wall or ceiling in an approved manner

in the case of new building wherever possible teak wood plugs shall be fixed in the walls

before they are plastered.

16.2 To achieve neatness, plugging of walls or ceiling may be done by an approved type of

asbestos metallic or a fiber fixing plug.

17. Branch Switches :

Where the supply is derived from a three-wire of four-wire source, and distribution is

done on the two wire system all branch switches shall be placed in the outer or live

conductor of the circuit and no single-phase switch of use shall be inserted in the middle

wire, earth or earthed natural conductor of the circuit. Single pole switches (Other than

for multiple control) Carrying not more than 15 amperes any be of tumbler type which

shall be 'ON' when the handle known is down.

Where conductors are required to be threaded through tubes or channels formed in the

metal work of fittings Liiofor must be free form sharp angles or projecting edges and

such size that will enable them to be wired with the conductors used for the final sib-

circuits without removing the boarding taping or outer covering as far as possible all

tubes and channels should be of sufficient size of permit 'Looping bank' of wires cables

and flexible cords other than those designed for high temperature shall not be used for

wiring fittings except for portable fit limits. All fittings must have not less than a half inch

male nipple Fittings and lamp holders for gas filled lamps shall be adequately ventilated.

18.1 Where light fitting is supported by one or more flexible cords the maximum weight to

which the twi flexible cords may be subjected shall be as follows.

Nominal cross No. & Dia in Max. Permissible

sectional mm of wires. weight

18.2 No inflammable shade shall form a part of light fitting unless such shade is well

protected against all risks or fire. Celluloid shade or light fitting shall not be used under

any circumstances.

18.3 Fitting of wire :

The use of fitting wire shall be restricted to the internal wiring and the lighting fittings.

Where fitting wire is used for wiring, for the sub-circuit loads shall be terminated in a

ceiling zone or connector from which they shall be carried into the fittings.

19. Lamp Holders :

Lamp holders for use on brackets and the like shall be in accordance with *IS : 1258-

1967 specification for Boy onet lamp holders and all those for use flexible pendants shall

be provided with cord grips. All lamp holders shall be provided with shade carriers.

Where centre contact Edison screw lamp holders are used, the outer or screw contacts

shall be connected to the middle wire, the natural and the earthed conductor of the

20. Outdoor Lamps :

External and road lamps shall have weather proof fittings of approved design so as to

effectively prevent the admission of moisture. An insulating distance piece of moisture

proof materials shall be inserted in the fittings. Flexible cord and cord grip lamp holders

shall pot be used where exposed to whether in veranda’s and similar exposed situations

where pendants are used, they shall be of fixed rod type

All incandescent lamps, unless otherwise required an suitable protected, shall be hinge

at a height of not less than 2.5 m above the floor level. They shall be in accordance with

IS : 418 : 1957 specification for Tongsten Filament General Service electric lamps

22. Fans, Regulators and Clamps

22.1 Ceiling fans :

Ceiling fans including their suspension shall conform to *IS 374-1960 specification for

electric ceiling fans and regulators (Revised) & to the following requirements

(a) All ceiling fans shall be wired to ceiling rouses or to special connector boxes to which

fans rod wires shall be connected and suspended from books or shackles with insulators

between rod wires shall be connected and suspended from hooks or shackles with

insulators between hooks and suspension rods. There shall be no joint in the suspension

rod. but if joints be avoidable then such joints shall be screwed to special couplers of

cm minimum length and both ends of pipes shall touch together within couplers and shall

in addition be secured by means of split pins alternatively the two pipes may be welded.

(b) Fans clamps shall be of suitable design according to the nature of construction of ceiling

on which these clamps are fitted in all cases fan clamps shall be fabricated from tested

new metal of suitable sizes and they shall be as close fitting as possible Fan clamps for

weed beams shall be of suitable flat iron fixed on two sides of the beam and according to

the size and section of the beam one or two mid steel bolts passing through the beam

shall hold both flat irons together Fan clamps for steel join shall be fabricated from tested

flat iron to fit in rigidly at the bottom flange of the beam. Care shall he taken during form

tested flat iron to fit in rigidly at the bottom flange of the beam. Care shall he taken

during form tested flat iron to fit in rigidly to the bottom flange of the beam Care shall be

taken during fabrication that the metal does not crack while hammering to shape. Other

fan clamps shall be made to suit the position, but in all cases care shall be taken to see

that they are rigid and safe.

Note : All tan clamps shall be so fabricated that fans revolve steadily.

(c) Canopies on top and bottom of suspension rod shall effectively hide suspensions and

connections to fan motors, respectively.

(d) The lead-in wire shall be of nominal cross-sectional are a not less than 1.0 mm 2 with

copper and 1.5 mm2 alluminium and shall be protected form abrasion.

(e) Unless otherwise specified the clear distance between the ceiling fan and the floor shall

be less than 2.75 m

22.2.0 Exhaust Fans :

For fixing of an exhaust fan a circular hole shall be provided in wall to suit the size of the

fan which shall be fixed by the means of rag-bolts embedded in the wall the hole shall be

neatly plastered with cement and brought to the original finish of the wall. The exhaust

fan shall be connected to exhaust fan point which be wired as neatto the hole as

possible by means of a flexible cord, care being taken that the blades in the proper

23. Attachment of fittings and accessories :

23.1 In other than conduit wiring all ceiling crosses, brackets, pendants and accessories

attached to watts or ceiling shall be mounted on substantial teak wood block twice

Varnished after all fixing holes are made in them. Blocks shall be not less than 4 cms deep.

Brass screws only shall be used for attaching finings and accessories to their base blocks.

24. Interchangeability :

Similar part of all switches, lamp holder, distribution, fuse board, ceiling rouses,

brackets, pendants, fans and all other fittings of same type shall be interchangeable in

each installation.

25. Conduit Wiring System :

25.1.1 Type and size of conduit - All conduit pipes shall be conforming to *IS : 1653-1964,

furnished with galvanised or stove enamelled surface. All conduit accessories shall be of

threaded type and under no circumstances pin grip type or clamp type accessories be

used. No steel conduit less than 16 mm in diameter shall be used. The number of

insulated conductors that can be drawn into rigid steel conduit are given in Table II.

25.1.2 Bunching of cables - Unless otherwise specified, insulated conductors of AC supply and

DG supply shall be bunched in separate conduits.

25.1.3 Conduit-Joints-Conduit pipes shall be joined by means of screwed couplers and screwed

accessories only (*IS : 2667-1964)

Specification for Fittings for Rigid Steel Conduits for Electrical Wiring. In long distance

stance straight runs of conduit inspection type couplers at reasonable intervals shall be

provided or running threads with couplers and jam-puts (in the latter case the bare

threaded portion shall be treated with anti - corrosive preservative) shall be provided.

Thread on conduit pipes in all cases shall be between 11 mm to 27 mm long sufficient to

accommodate pipes to full thread portion of couplers or accessories. Cut ends of conduit

pipes shall have no sharp edges nor any or buries left to avoid damage to the insulation

of conductors while puling them through such pipes.

Table-II Maximum Permissible Number of 250-V Grade

Single core cables that can be drawn into rigid steel

(clause 6.51 1)

Nominal Number 16 20 25 32 40 50

Crossectional and (No. of Cables Max)

area Diameter in

mm of wires S B S B S B B S B S

* For Cu. Conductors only

+ For Al Conductors only

Note-1 The cable shows the maximum capacity of capacity for the simultaneous drawing-in of

cables. The table applies to 250 volts grade able the columns heads 'S' apply to runs of conduit

table applies to 250 volts grade able the columns heads 'S' apply to runs of conduit

which have distance not exceeding 4.2 SM between draw in boxes and which do not

deflect from the straight by angle of more than

25.1.4 Protection against dampess - in order to minimize condensation or seat in inside the

tube, all outlets of conduit system, shall be property drained and ventilated, but in such a

manner as to prevent the entry of insects as far as possible

25.1.5 Protection of conduit against rust - The outer surface of the conduit pipes including all

bends, unions, tees junction boxes, etc., forming part of the conduit system shall be

adequately protected against rust particularly when such system is exposed to weather

in all cases no bare threaded portion of conduit pipe shall be allowed unless such bare

threaded portion is treated with anti-corrosive preservative or covered with approved

plastic compound.

25.1.6 Fixing of Conduit - Conduit popes shall be fixed by heavy gauge saddles, secured to

suitable wood plugs or any other approved plug with screws in an approved manner at

an interval of not one than one meter but on either side of coppers or bends or similar

fittings, saddles shall be fixed at a distance of 30 cm. from the centre of such fittings.

25.1.7 Bends in conduit - All necessary bends in the system including diversion shall be done

bending pipes, or by insuring suitable solid or inspection type normal bends, elbows or

similar fittings or by fixing cast iron inspection boxes whichever is more suitable. Conduit

fitting shall be avoided as far as possible. On conduit system exposed to weather, where

necessary, said type fitting shaft be used. Radius of such bends in conduit pipes shall be

not less than 7.5 cm. No length of conduit shall have more than the equivalent of four

quarter bends from outlet, the bends at the outlets not being counted.

25.1.8 Outlets - All outlets for fitting switches etc., shall be boxes, of .suitable metal or any other

approved outlet boxes for other surface mounting or flush mounting system.

28.1.6 Conductors - Ail conductors used in conduits wirings shall preferably be stranded. No

single core cable nominal Cross - sectional area greater than 130 mm shall be enclosed

In a conduit and used for alternating current.

28.1.7 Erection and earthing of conduit - The conduit of each circuit or section shall be

completed before conductors are drawn in. The entire system of conduit and

permanently” connected to earth conforming the requirements specified under pipe in a

workman like manner for a perfect continuity between each wire and conduit. Gas or

water pipes shall not be used as earth medium. If conduit pipes are liable to mechanical

damage, they shall be adequately protected. .

25.2 Recessed Conduit wiring system with Rigid Steel conduits - Recessed conduit wiring

system comply with all the requirements for surface conduit wiring system specified in

25.2.1 Making of chase - The chase in the wall shall be neatly made and be of ample

dimensions to permit the conduit to be fixed in the manner desired In the case of

buildings under construction chases shall be provided in the wall, ceiling etc., at the time

of their construction and shall be filled up nearly after erection of conduit and brought to

the original finish of the wall.

25.2.2 Fixing of conduit in chase - The conduit pipe shall be fixed by means of staples or by

means of soft saddles not more than 60 cm apart. Fixing of standard bends or elbows

shall be avoided as far as practicable and all curves maintained by bending the conduit

pipe itself with a lunge radius which will permit easy drawing in of conductors. All

threaded joints of rigid steel conduit shall be treated with some approved preservative

compound to secure protection against rust.

25.2.3 Inspection boxes - Suitable inspection boxes shall be provided to permit periodical

inspection and to

facilitate removal of wires, if necessary. These shall be mounted flush with the wall

Suitable ventilating holes shall be provided in the inspection box covers.

25.2.4 Type of accessories to be used - AM outlets such as switches and wall sockets, small be

either of flush mounting type of surface mounting type.

(a) Flush mounting type - AlI flush mounting outlets shall be of cast iron mild steel boxes

with a cover of approved insulating material or shall be a box made of a suitable’

insulating material.

The switches and other outlets shall be mounted on such boxes as would be approved.

The metal box shall be efficiently earthed with conduit by an approved means of earth

(b) Surface mounting type - If surface mounting type outlet box is specified, it shall be of

any be through flexible conduits of the same size as the rigid conduit.

25.3 Conduit Wiring System with Rigid Non-Metallic Conduits:

Rigid Non-Metallic conduits are used for surface recessed and concealed conduit wiring.

25.3.1 Type and size - All non-metallic conduits used shall conform to IS : 2509-1963adb shall

be used with the corresponding accessories (See IS : 3419-1965) specification for

Fittings for Rigid Non - Metallic Conduits).

25.3.2 Bunching off cables - Conductors of AC supply and DC supply shall be bunched in

separate conduits. The number of insulated cables that may tie drawn into the

conduits are iveri In Table III. In this table space. factor does not exceed 40 percent.

Table-III MAXIMUM PERMISSIBLE NUMBER OF ?r,O VOLTS GRADE SINGLE, GORE

CABLE THAT MAY BE drawing INTO RIGID non-metallic conduits

Size of cable Size of Condits (mm)

Nominal Cross Number 16 20 25 32 40

sectional area and (Number of Cables Max)

*For copper conductors only

*For alluminium conductors only.

25.3.3 Conduit joints - shall be joined by means of screwed or plain couplers depending on

whether the conduits are screwed or plain. Where there are long runs of straight conduit.

Inspection type couplers shall be provided at intervals. For conduit fittings and

accessories reference may be made to IS : 3419-1965.

25.3.4 Fixing of conduits - The provision of 25.1.6 shall apply except that the septum between

saddles or supports is recommended to Oe 60 cms for rigid non-metallic conduits.

25.3.5 Bends in conduit - wherever necessary, bends or diversions may be achieved by

bending the conduits (See 6.5.3.9) or by employing normal bends, inspection bends,

impaction boxes elbows or similar fittings.

25.3.6 Conduit fittings shall be avoided, as far as possible on outdoor system.

25.3.7 Outlets - All the outlets or fittings, switches, etc. shall be boxes of substantial

construction. In Order to minimum is condensation or sweating inside in side the conduit,

all outlets of conduit system shall be properly drained and ventilated, but in such a

manner as to prevent the entry of insects, etc. as far as possible.

25.3.8 For use with recessed conduit wring system the provisions of 6.5.2.1 to 6.5.2.4 shall

25.3.9 Heat may be used to soften conduit for bending and forming joints in case of plaint

conduits. As the material soften when heated fitting of conduit in close proximity to hot

surfaces should be avoided. Caution should be exercised in the use of the conduit in

locations where the amoient temperature is 500 C or above Use of such conduits in

place where ambient temperature is 600 C or above is prohibited.

PVC INSULATED AND P.V.C. sheathed or T.R.S wiring SYSTEM

This system of wiring is suitable for low pressure installation and shall not be used in

places exposed to sun and rain nor in damp places. provided they are sheathed in the

special approved protective covering and well protected to withstand dampness.

26.1 Attachment to walls and ceiling :

All caies on brick walls, stone or plastered walls and ceiling shall be run on well

seasoned perfectly straight and well seasoned, perfectly straight and well varnished on

four sides, teak wood or any approved hard weed battens not less then 10 mm fin shed

thick, width of which shall be such as to suit total width of cables laid on the batten, prior

to election, these shall be pained with one coat of varnish or approved paint of colour to

match with surrounding. These battens shall be secured to wall and ceilings by flat head

wood screws to faws plug or Phil plug at an internal not exceeding 75 em. Wood plug

can be used only with special approval of the Engineer in charge. The flat head wood

screws shall be counter within wood batten and smoothed down

26.1.2 Where wiring is to be carried out along the face of the rolled steel joints a wooden batten

adequate width shall first be laid on the same and dipped to it as in corispicousiy as

possible. The wiring should then be fixed to this barking shall be suitable bushed to

prevent the abrasion of the cables.

26.1.3 Attachment to false ceiling: In no case, the open wiring shall be run above the false

ceiling without the approval of Engineer-in-charge

26.20 Link dips: Only alluminium alloy clips/joint clips shall be used. The thickness shall be

0.32 mm (30 SWG) for lengths of 50 mm to 80 mm. The width shall not be less than

mm in all these cases. Link clips/joint clips shall be so arranged that one single clip shall

not hold more than two core or three single core Tiffs of PVC insulated and PVC

sheathed upto 2.5 sq. mm above while-a single clip shall hold a single twin core or two

single core cables. The clips shall be fixed on varnished wood batten switch iron pins

and space at interval of 15 cm bet in the case of horizontal and vertical runs.

26.3.0 Bends in wiring: The wiring shall not in circumscribes be bent so as to form and abrupt

right angle but must be rounded off qt the corners to a radius not less than six times the

overall diameter of the cable.

26.4.0 Protection of wiring from Mechanical Damage:

26.4.1 In cases where there are chances of any damage to wiring such wiring shall be drawn

complying with all the requirements of conduit wiring system.

26.4.2 Such protective covering shall in all cases be fitted on all down drops within 1.5m from

the floor. or from floor level upto the switch board whichever is less.

26.5.0 Passing through floors: All cables taken through floor shall be enclosed in heavy gauge

steel conduit extending 1.5m above the floor or upto the switch board whenever is less

and flush conduits or pipes shall be neatly bushed with porcelain wood or other

approved material. The conduit pipes shall be security earthed.

26.6.0 Passing through walls: When conductors pass through walls, anyone of the following

methods shall be employed. Care should be taken to see that Wires pass very freely

through protective pipe or box and that wires pass through in a straight line without any

twist or cross in wires on their ends of such holders.

(a) A box of teak wood or approved hard wood extended through the hole thickness of the

wall shall be buried In the wall and casings or conductors and casing or conductors shall

be carried so as to allow 1.3 cm air space on the three sides of the casing of the

(b) The conductors shall be carried in. an approved heavy huge solid drawn or lap weld

conduit or in aporce-tain of such a size that it permits easy drawing in, the enciad of

conduit shall be neatly bushed with porcelain, wood or other approved material.

26.6.1 Where a wall tube passed outside a building so as to be exposed to weather, the outer

end shall be mounted anutured downwards and property bushed or the open end, The

conduit shall be neatly arranged so tjjat the cables enter them without bending.

26.7.0 Buried cables: Tile HIS PVC sheathed cable shall not normally be burring directly in

plaster. Where so specified in the special in the specification they may be taken in task

wood channeling of .ample capacity or conduit pipe boned In She wall.

26.8.0 Stripping of outer covering: While citing and stripping of the outer covering of the, care

shall be taken that the sharp edge of the cutting instrument does not tough the inner

insulation of the conductors. The protective outer covering of the cables shall be stripped

off near connecting terminals as far as practicable. Care shall be taken to avoid

hammering on link clips with any metal instrument after the cables are laid. Where

junction boxes are provided they shall be made moisture proof with a plastic compound.

27.0 PAINTING WORK IN GENERAL:

27.1 Paints: paints, oils varnishes etc. of approved make in original to the satisfaction of the

Engineer -in charge shall only be used.

27.2 Preparation of surface: The surface shell be thoroughly cleaned and dusted before

painting is started. The proposed surface shall be inspected by Engineer-in-charge or his

authorized agent and shall have received the approval beore painting is commenced.

27.3 Application: Paint shall be applied with brush. The paint shall be spread as smooth &

event as possible particular care shall be paid to rivets, ruts belts and cover lapping

Before drawing cut, it shall be continuously stared, in the sarolier containers with a

smooth stick while it is being applied.

Each coat shall be allowed to dry out sufficiently before a subsequent coat is applied

27.4 Scope: painting on old surface in in/door Situations will not include prier. coat except

where specially motioned in the schedule of work or special specification. However,

where rust has formed on iron and steel surfaces the spots win be painted with one anti-

mil primer coat.

27.5 Precautions: All furniture fixtures, glazing floors, etc. shall be protected by covering, All

stains smears, opa-shirig, dropping of every kind shall be removed. While painting of

wiring etc. it shall be ensured that painting of will ceiling etc. is not spoiled in any way.

27.6 Painting of conduit and accessories: After installation surface of conduit pipes, fittings

switch and regulator boxes, etc. shall be painted with two coats of approved enamel I

paint or alluminium paint as required to match the finish of surrounding wall, trussed, etc.

The clip for batten wiring shall be of Alluminium conforming to I.S. specification No.

Important Clauses of Indian Electricity Rules, 1956. Following clauses of Indian

Electricity Rule, 1956 shall in particular be taken care of in the execution of electrical

Clause No. Subject

3. Authorisation :

29. Construction, installation, protection, operation and maintenance of electric supply lines

and apparatuses.

31. Cut-out on consumer’s premises.

32. Identification of earthed and earthed neutral conductors and position of switches and

cutouts therein.

33. Earthed terminal on consumer’s premises.

34. Handling of electric supply lines and apparatus.

41. Distinction of circuits of different voltages.

42 Accidental charge.

44. Provisions applicable to protective, equipment.

45. Instruction for restoration of persons suffering form electric shock.

45. Precautions to be adopted by consumers, owners electrical contractors. Electrical

workmen and suppliers.

46. Periodical inspection and testing of consumer’s installation.

48. Precautions against leakage before connection

50. Supply to consumers.

51. Provisions applicable to medium high voltage installations.

58. Point of commencement of supply.

59. Precautions against failure of supply; Notice of failures.

61. Connection with earth, (low and Medium Voltage system.)

64. Use of energy at high and extra-high voltage system.

67. Connection with earth. (high & Extra-high voltage systage)

68. General conditions as to transformation and control of energy.

All clauses under Chapter VIII on Overhead Lines.

137. Mode of entry.

138. Penalty for breaking seal.

139. Penalty for breach of rule

140. Penalty for breach of rule

141. Penalty for breach of rules.

Form of Completion Certificate

I/We certify that the installation detailed below has been installed by me/us and tested

and that to the best of my/our knowledge and belief, it complies with Indian Electricity Rules.

1956, as well as the C.P.W.D. General Specification for ElectircaI Works,

Electrical Installation at Voltage and system of supply

(1) Particulars of works:

(a) Internal Electircal lnstallation No. Total Load Type of system or wiring

(i) Light point

(iii) Plug point

(a) 3 pin 5 Amp.

(b) 3 pin 15 Amp.

Description HP/KW Type of starting

(a) Molars: (i)

(c) Other plants:

(d) If the work involves installation of over head line/or under ground cable:

(a) (i) Type & Description of overhead line.

(ii) Total length & No. of spans,

(iii) No. of street light & its description

(b) (i) Total length of under ground cable & its size

(ii) No. of joint.

St. through joint:

(i) Description of earthing electrode

(ii) No. of earth electrodes :

(iii) Size of main earth lead:

3) Test Results:

(a) Insulation Resistance:

(i) Insulation resistance of the whole system Megohms.

of conductors to earth.

(ii) Insulation resistance between the Megohms.

Phase conductors and neutral.

Between phase R and neutral. Megohoms

Between phase Y and neutral Megohorns

Between phase B and neutral Megohoms

(iii) Insulation resistance between the phase conductors in case of polyphone supply.

Between phase R & phase Y Megohoms

Between phase Y & phase B Megohoms

Between phase B & phase R Megohoms

(b) Polarity Test:

Polarity of non linked single pole braches switches.

(c) Earth continuity Test:

maximum resistance between any point In the earth continuity conductor including metal

conduits & main earthing lead.

(d) Earth Electrode Resistance.

Perestance of each electrode.

(e) Lighting protective System:

Resistance of the whole of lighting protective system to earth before any bonding is

effected with electrode and rnotal in/on the structure.

Signature of Supervisor Signature of Contractor

Name & Address Name & Address

All Specification standard publication etc. specified mean the latest standards, publication etc.

pertaining to electrical and should conform to the following wherever applicable.

1) Indian Electricity Act. 2003 with its amendments.

2) Indian Electricity Rules 1956 and its amendments.

3) Indian Electricity supply Act

4) Regulation for Electricity Equipment in building by l.E.F. Landon.

5) The Factory Act, 1948 and its amendments.

6) I.S. 732* 1982 Part -1, II & 1.11 code of practice for Electrical wiring and filings in

buildings for low and medium voltages

7) I.S. 4064-1976 H.D. Air break switches and fuses for-Voltages not exceeding 1100 volts.

8) I.S. 3043 - Earthing code of practice for

9) I.S. - 1554 Part-11970 PVC insulated (Heavy duty) Electrical Cables for working

voltages upto and unfading 110 volts

10) I.S. 694-1964 Part-11 - PVC insulated cable with Alluminium conduits (revised) for

voltages upto 110 volts.

11) I.S.: 5908 -1970 - Electrical installations in buildings method of measurements of.

12) I.S.: 4237 -1967 - General requirement for switchgear and control gear for voltage not

exceeding 1000 volts.

13) I.S.: 1653 -1964 - rigid steel conduits for electrical wiring (revised)

14) I.S.: 2509 -1973 - Rigid steel conduits for electrical installation (First revision)

15) I.S.: 1248 -1967 - Bayonet landholders (First revision)

16) I.S.: 418 1957 - Tungsten - Filament General service-electric lamps (Third revision)

17) I.S.: 374 -1966 - Fans and Regulators, ceiling type, electric (second revision)

18) I.S.: 2667 -1964 - Filings for rigid steel conduits for electrical wiring.

19) I.S.: 3419-1976 - Fining for rigid non-metallic conduits (First revision)

20) National Electric Code,

Abstract of the Wiring Rules of the Institution of

Electrical Engineer

(Referred to in the specification)

Division (See clause 2 of the specification)

All electrical system in which all the conductor and apparatus are connected to a

common source of supply.

1) Earthed: Effectually connected, to the general mass of the earth. Solidly earthed without

the Intervention of a fuse. switch, circuit - breaker, resistor reactor or solenoid.

2) Un-insulated Conductor: A conductor without provision, by the Interposition of a

dielectric or otherwise. for its insulation from earth.

3) Bare: Not covered with insulating material.

4) Dielectric: any material which offers high resistance to the passage of an electric current.

5) Bunch Conductor: When more than one conductor is contained within a single duct or

groove or when they are run enclosed and spaced and not spaced apart from each

6) Points: In wiring as per IS: 5908 -1970 - Method of measurements of electrical

installation in buildings.

7) Switch board: Assemblage pf switchgear with or without instruments, but the term does

not apply to a group of local switches in a final sub- circuit where each switch has’its own

insulating base.

Note : In the electricity (Factories Act) special regulations, 1908. and 1944 the term

“Switchboard” includes “Distribution board.’”

8) Single pole switch: A switch suitable for closing and or opening a circuit on one phase or

9) Linked switches: A switch the blades of which are so linked mechanically as to make

break all poles simultaneously or in a definite sequence.

10) Fuse Switch: A switch the moving part of which carries one or more fuses.

11) Three Wire System :

a) Outer Conductor: Those between which there is the greatest difference of

potential. This use of the word outer must not be confused with the use of the work when

applied to the external conductor of a concentric main.

b) Neutral Conductors: The term includes the neutral cond4ctor of a 3 phase 4 wire

system, the conductor of a single phase or d. c. installation which is earthed by the

supply undertaking (or otherwise at the source of the supply) and the middle wire or

common return conductor of a 3 wire d.c. or single phase a.c. system.

12) Semi enclosed machine: One in which the ventilating openings in the frame are covered

a) Girds expanded metal or wire gauche, with openings of less fhan 1/4 Inch but not

less than so as to obstruct free ventilation.

b) Wire gauge. in which the openings are less than 1/4 inch but not less than 3/32

inch (diameter or width):

c) Screens with smaller openings than the above.

13) Totally - enclosed Machine:

One in which the enclosing case and bearings are dust proof and which dose not allow

circulation of air between the inside and outside of the case.

14) Pipe Ventilated Machine: An enclosed machine in which, the frame is so arranged that

the ventilating air may be conveyed to it through a pipe attached to the frame the

ventilation opening maintained by the fanning action produced be the machine itself.

15) Forced draught machine: An enclosed machine in which the ventilating air supply is

maintained by an independent fan external to the machine itself.

16) Protected Machine: One having end shall bearings and in which is free access to the

interior without opening doors or removing covers.

SWICHES AND BREAKERS CIRCUIT

(See clause II of Specifications)

17) Switches and Circuits Breakers:

Switches and circuit breakers (rules 2b. 36 and 37) whether fixed separately or

combined with lamps, holders of fittings, must comply with the following requirements:

(a) Over threading must not take place at the point ct contract or elsewhere, when the full

current flows continuously.

(b) They must be so constructed or arranged that the contracts cannot accidentally close

when left open.

(c) The basis must be of incombustible, nonconductor and moisture proof material.

(d) Circuit breaker as must be so agganged and placed that no combustible material is

endangered by their action.

(e) Unless placed an engine room cr in compartment arranged .for the purpose, they must

their live parts covered. The covers must be incombustible material and, must be either

non-conducting or of rigid metal and clear of all internal machinery. Foil more than

amperes, ai pressures exceeding 125 voltas metal covers must be lined with insulating

(f) In positions where they are liable to injure or come into contract with goods, they must

be further protected by an open fronted box or other suitable guard.

(g) Handles must be insuled so arranged that the hand cannot touch live metal, or be

injured through and adjacent face blowing.

(h) Switches having a handle projecting through an, open salt in the cover, must not be

Signature of Contractors Executive Engineer

GENERAL REQUIREMENTS

1.1 Scope of works:

The work covered by electrical specification consists supplying and installing, electrical

wiring system complete in strict accordance with this specification and the applicable

drawing and subject to the terms and conditions of the contract./lt includes.

(a) Conduit and wiring system for fans, lighting points bells, clocks sockets, etc. including

fixing of lighting fixtures and fans etc. and miscellaneous points.

(b) Conduit and wiring system for exhaust fans, power sockets etc.

(c) Panel boards, distribution boards, switch fuse units.

(d) Complete power and lighting cable systems.

(e) Grounding system.

(f) Conduits system.

(g) Street lighting system.

(h) Other miscellaneous electrical work.

1.2 Completeness of Contract;

Any work fittings accessories or apparatus which may not have been specifically

mentioned in the specification but which are necessary in the equipment for efficient

working of the plant should be deemed to be included in the contract and should be

executed and provided by the contractors. All plant and apparatus should be complete in

all the details, where such details, are mentioned in the specifications or not.

Three prints and one permanent negative of each of the finally approved drawings

incorporating all the modifications proposed by the Department should be submitted. No

modifications should be made in a drawing already approved by the Engineer-in-charge

without his prior consent.

Approval of the contractor’s drawing will not relieve the contractor of any part of his

obligation to meet all the requirements of .the contract.

The performance of all the equipments and the installation should be guaranteed at least

a minimum period of one year from the date of taking over the installation by the

Department. All equipments must comply with the relevancy IS-BS specifications.

1.4 Interchangeability:

All corresponding parts of similar plant and equipment should be interchangeable in

All special tools required for dismantling and assembly of the equipment covered by the

contract shall be supplied as obligation under the contract.

A list of to be supplied by the Contractor should be submitted along with the tender.

Specifications for Electrical Installation in Buildings

1.1 These specifications relate to the electrical installations in the buildings of P.W.D.

Electrical. The specifications cover general requirements to be fulfilled. These general

specifications are supplemented by the specifications for the particular buildings

separately attached.

1.2 These specifications are governed by the General conditions of the contract attached

1.3 APPLICABLE RULES AND REGULATIONS:

1.3.1 Installation shall be carried out conformity with regulations for electrical equipments of

buildings, published by the Institute of Electrical Engineers London (14th Edition

and as amended upto date) herein after referred to as the I E. E. wiring regulations

Where these specifications, or the special specifications for the particular building

attached hereto are at variance with the I.E.E> regulation shall also comply with the

requirements of the Indian Electricity Act, 1910 as amended upto date rules issued there

under and also the regulations for the Electrical Association of India Where not specified

otherwise, the installation should generally follow the Indian standard codes of practice

and in their absence the relevant British Standard of practices. All the materials shall

comply with the relevant Indian Standard of British Standard specifications

1.4 DEFINITIONS:

1.4.1. The definitions of terms in the I.E.E. Regulations shall apply in general.

1.5.1. The preliminary drawings only indicate the general scheme of requirement. The exact

position of all points, control switch boxes, runs of wiring and/or conduits joint boxes,

inspection boxes, Ilains, and sub-distribution boards, mains etc shall be got approved

Engineer-in-charge. All circuits shall be clearly numbered in wiring diagrams and building

plans. The detailed design of a switch-board, special fixture or any other part of the

electric installation as may be called for by the engineer-in-charge shall also be supplied

by the Contractor and should be got approved by the Engineer-in-charge. Three sets of

completion drawings and wiring diagrams showing the instillations as executed shall be

supplied by the contractor along with the completion certificate.

All materials shall be new and of the best quality conforming to the relevant I.S.B.S.

specifications. They must be the products of reliable manufacturers of many years or

standings, All like parts of materials shall be interchangeable. In case of equipments

such as circuit breakers; switch fuses etc. a descriptive and illustrated literature shall

accompany the tender. The names of manufacturers’ of various materials shall be

furnished in proform in Appendix-1. Samples of materials wherever required should be

deposited with the Engineer-in-charge. All materials shall be rust-proof or rendered rust

proof by application of suitable paints. The supply of all equipments, switchgears etc.

shall be complete with accessories. filings and mountings as may be required for their

proper performance, and as specified in the relevant IS-BS Code of Practice and

1.7 WORKMANSHIP:

17.1. Good workmanship and neat finished appearance are the prerequisites for complying

with the clauses. of these specifications. With a view to ensure fine workmanship the

Tenderer shall employ licensed wiremen with an experience of not less than 5 years in

the type of work they are engaged. The work should be done under supervisions of

licensed Electrical Supervisors with good educational qualifications and considerable

1.7.2 Tenderer shall furnish the names of Supervisor and their wiremen. who will be engaged

in this work, with details of their experience.

1.8 CO-OPERATIVE WITH CIVIL AND OTHER WORKS CONTRACTORS:

1.8.1 The Tenderer after the award of the contract, shall co-operate with the civil and other

contractors and shall coordinate his work of the other contractors with the least amount

of dislocation and interference to the other works. Tenderer shall go through the

drawings carefully and shall furnish the Engineer-in-charge with all the details of

openings in the walls etc they may be required for concealing any of the electrical

equipments or accessories. Where the contractor fails to furnish such information as

may be required for the purpose of concealing the equipments etc. they shall be made at

his (Contractor) cost and expense. Any alteration to parts of the building shall be made

good at the contractors expense and brought to the original shape finish and colour.

The electrical contractor shall be completely responsible of the testing and

commissioning of those installations covered by these specifications in compliance with

the standard procedure, in obtaining permission of the Government Electrical Inspector.

Any modification which is demanded by Government Electrical Inspector shall have to

be carried out within the scope of the contract. The contractor shall submit four copies of

drawings of installations as per regulations for shall be provided by the contractor for

carrying out the installation work. All test shall be carried out in the presence of the

Engineer-in-charge or his authorized representative and his approval obtained for the

1.10. COMPLETION CERTIFICATE AND MAINTENANCE GUARANTEE:

1.10.1. After the completion of the installation and contractor should furnish a certificate in the

proforma in Appendix-III, at the time of taking over the installation by the Department.

The installation shall be guaranteed for period of 12 months from the date of taking over

by the Department. During the period of guarantee all defects in material or

workmanship shall be rectified or rectified or replaced free of cost to the Department.

1.11 TENDERER’S ABILITY

1.11.1. In order to enable the Department to asses the ability of the Tenderer to execute the

work, the Tenderer shall furnish evidence ot his experience and capacity to carry ounhe

magnitude and nature.

1.12.1. The rates of items shall include all traces, transport, loading and unloading charge and

all such charges that may the market are not entertained Break up figure as required in

the schedule of work shall also be furnished. As far as possible indigenous materials

only shall be included for supply. Where It is unavoidable, imported items may be

included and Tenderer should dearly indicate materials, quantity, rate and amount of

1.13 STORAGE SPACE:

No covered storage space will be provided-by the Department. The contractor has to

make his own arrangement. However, the Department may give an open space near the

place of execution where the contractor can build his own stores for executing the work.

1.14 DEPARTURE FROM SPECIFICATIONS:

The Tenderer should clearly indicate departure, if any from the specifications with

reasons for the same.

1.15 EXTRA ITEMS:

Rates for extra items shall generally be derived from the rates already available in the

schedule. Where it is not possible, the rates shall be mutually agreed upon and

contractor shall furnish a detailed analysis of the rates claimed by him.

2. TECHNICAL SPECIFICATION:

2.1 Supply System:

The wiring installation shall be suitable for 3 phase 4 wire, 400-440 V 50 cycles system

of supply Colour code of different phase shall be followed as per standard.

2.2 Wiring for Light and Fans:

2.2.2 Looping system to wiring shall be adopted. No joints shall be made at intermediate runs

of cables and where they are unavoidable. such joints shall be through approved

mechanical connections.

2.2.2 Point wiring:

Point wiring shall consist to the branch wiring from the board together with the controlling

switch or push as far as and including the ceiling rose or any other approved connector

or socket, outlets. In case of more than one light being conerulled by one switch, the

wiring upto the ceiling rose of the first light including the switch shall be considered as a

Primary point. Loop wiring from light shall be considered as a’ Secondary’ point and

rates shall be quoted separately, including final connections to fixtures and plugs.

2.2.3 Conductors:

No conductor for final sub circuit wiring for light and socket outlets shall across-section

less than that of 2.5 sq.m (alurninimum)

No final sub-circuit radiating from the fuse board of a sub-distribution board arid wires

with 25 sq. m. (AI) cable shall carry more than 10 lights, fans or socket outlets or a

connected load of 800 watts whichever is greater. The following wattages may be

assumed for estimating the load on each sub-circuit unless otherwise known or

Incandescent lamps 100 watts

Ceiling fans 60 watts

5-A Socket Outlets (lighting) 100 watts

4. ft. fluorescent tube 50 watts

5. ft. fluorescent. tubes 100 watts

In each sub-distribution board at least-one way preferably two ways shall be left

spare for future requirement. A wiring diagram giving the exact Utilization of the ways

shall be prepared and fixed in the sub-distribution board itself or any other easily

accessible place. The ways of sub distribution boards shall be accordingly numbered.

2.2.5 Local Control Switches (General) :

Local control switches for circuit carrying net less than 5-5 shall be piano type and shall

conform to relevant I.S. Standards. The switch shall be ”ON’ when the knob is in the

down position. All local control switches shall be connected in the phase or live

conductor only and in the natural conductor, switches shall be fixed in iron clad box and

shall is so placed that the centre of the switch box is 1.3 Mtr. from the finished floor level

unless otherwise stated. All switch boxes shall be provided with 1 /8" thick Perspex

cover fixed to the switch box with chromium plated counter sunk screws (brass).

2.25A Switches (Two Way) :

(a) Two way swatches shall be piano type single pole, double throw, 250V, suitable for flush

mounting and of 5A capacity as per the drawings. All switches shall be recessed in an

embedded metal box.

(b) Each box shall have suitable outlet for fixing conduts directly.

(c) Each box shall have Perspex cover painted inside with the wall colour, if required.

(d) Each switch shall have suitable for the position in a stairway wiring. 2.2.5.B Switch

Boxes (General) Electrical circuits shall be written suitable on the cover of all switched

boxes, as approved by the Engineer-in charge (elect) whenever different phase are

terminated in a switch box bakelite partition shall be provided. Each cash shall be

provided with a G.I. Earth stud nut and washers for earth connectors.

2.2.6 Ceiling Rose:

Ceiling rose shall be used on circuits having a normally exceeding 200V. Only one

flexible cord shall be attached to a ceiling rose. Only 3-pin 5A socket outlet shall be

provided in lighting circuits. All socket outlets be provided with a control switch and they

shall be mounted in switch boxes in an approved manner.

2.2.7 Fittings:

These shall be of approved type as specified in the tender schedule. The subscripts

leads should terminate in a ceiling rose or conductor in the fitting and internal connection

made there from. Wherever these fitting are suspended they shall be done so through

the conduits and ball and socket joint. All fittings shall be grounded by a G.I. conductor

not less than 16 S.W.G.

2.2.8 Flexible wiring:

Flexible cords of not less than .23/0076 size be shall be used, The weight of suspension

road shall be governed by I.E.F. Regulations.

2.2.9. Ceiling Fans:

All ceiling fans shall be wired to ceiling rose and suspended from a hook shackle or

clamp and insulated from the same. All joints in the suspension, road shall be screwed

and means of split pins. The fan clamps supplied by the Contractor shall be suitable for

the ceiling or proof member as the case may be For concrete roofs, fan hooks shall be

buried in concrete during concrete during construction in an approved manner and

secure bound to the reinforcement.

2.2.10 Conduits and Earthing:

All conduits feeding lighting and circuits shall be provided with earth continuity G.I.

conductor as specified for power wiring. All conduits shall be as specified for power

2.3.1 Point wiring:

Point wiring power shall be as defined under section 2.2.2 and shall include the switches

2.3.2. Loading:

AIl distribution board for power wiring shall be not less than 15 A per way. Loading per

way shall not exceed normally 100 watts. The following loads may be assumed if exact

figure are not known.

3-Pin 15A Outlets 1.000 Watts

3-Pin 5A Outlets 100 Watts

2.3.3 Wiring for Motors :

2.3.3.1 Final sub-circuits loop in motors shall be connected to separate ways of the Distribution

board even if the current in the sub-circuit is less then 15A. No looping is permissible.

2.3.3.2 All wiring shall be carried in H.G. conduit as specified in I.S. specification for gauge for

different sizes of conduit. When the motor is resiliently mounted fixable with approved

adopters shall be used for the last few feet. Where cables are used sufficient loop shall

2.3.3.3 All switch fuse units controlling circuits feeding motor .shall be pr9vided with H.R.C.

fuses or as specified:

2.3.3.4 The frame of every motor and its association contra gear shall be earthed by two

separate and distinct connections to earth connector shall be capable of earring 3 times

the rating of fuse or 1.1/2 time the setting or the circuit breakers but in no case than

NO.8 S.W.G. or 7064" or equivalent cross section of copper. Where practicable, the

earth connections shall be visible for periodical inspection. Gas or water pipes shall not

be used for earth connections.

2.3.3.5 Socket Outlets and Control Switches f A and 15A :

All socket outlets shall be of 3 pin type, the third pin being connected to the earth stud of

nearest distribution board by separate earthing wire: The socket shall conform to I.S.:

1293/1938,’single pole, piano type. Each socket pubets shall be provided with a control

switch of appropriate rating and as specified. The switch and socket shall be mounted

inside the iron clad box provided with 1/8” Perspex cover as directed by the Engineer-in-

charge or as specified in schedule of quantities. Inside switch box ample space shall be

available around switches for connection wires to switches. All socket outlets for power

shall be mounted at the skirting level otherwise specified or as directed by the Engineer-

The three phase plug receptacles shall have their earth terminals connected by

independent earth wires to ring main strip on the building. In buildings where explosion

proof fixtures are installed single phase plug receptacles as well as light points shall be

connected to ring main ground bus installed in the building by separate earth wires of

Socket outlet shall have some provision not to receive the matching plug unless the

grounding pin is in correct position. The grounding pin of the plug shall make the

contract first and break the contract last at the time of inserting or removing the plug

The grounding terminal shall be connected to the enclosed metal body providing

G.l.Stud, nut washers welded to the box.

Each unit shall be suitable for flush mounting as required and indicated in the applicable

Combination unit socket outlet and switch shall be complete with necessary internal

wiring. The switch/socket shall be mounted on M.S. bracket enclosed in a box.

2.4 Conduit Wiring:

2.4.1 Where conduit wiring is adopted type and size of the conduit shall be as indicated in the

drawing. The minimum of the conduit shall be 19 mm.

2.4.2 The contractor shall thoroughly study the structural of the buildings and wherever,

necessary shell in consolation with Department’s representatives at site, make suitable

adjustments in the cable routings, earthing arrangements, and location boxes, fitting etc.

with a view to avoid interference with any part of the building, structure, equipment or

any other work in the building or to effect any improvement in the arrangement.

2.4.3 Protection of conduit against rust:

Conduit shall be given two coats of oxide paint before they are placed in position. All

exposed conduit shall be planed after installation with the colour as approved by the

Engineer-in-charge. This do not apply to galvanized conduit.

2.4.3.A.Protection against insects arid damp:

In Order to minimize cocensation or sweating inside the conduit, system shall be

properly drained any ventilated in such a manner as to prevent the entry of insects.

2.4.4. Conduit shall first be installed as a complete system without cables and shall be

continuous from outlet to outlet from fitting to fitting and mechanically and electrically

connected to all boxes and fittings.

2.5. SPECIFICATION FOR POWER CONTROL AND TELEPHONE CABLES:

i. The specifications cover the supply and medium voltage ”Power and control cables

either in ground or trench depending on the conditions at sate including accessories for

the same. The work in general, consists of supplying, laying jointing terminating and

connecting at. 1.1. KV APLSTS PVC power and control cables.

ii. The contractor shall supply all accessories including jointing and terminating materials,

compound, tapes supporting materials, cleats cables lugs, concrete stable, bricks sand,

cable-markers etc. as required to make the installation work including digging and filling

of the trenches as required.

II. SPECIFICATION:

i. All power cables to be supplied mentioned as ‘APLSTS’ in the Schedule should be mass

impregnated, non draining, paper insulated lead sheathed, double steel tape armored

and must comply with the latest IS1BS specifications.

ii. All cabling materials such as cable compound, cable lugs, taped shall be of approved

quality acceptable to the type recommended by the manufacture of the cable for which it

is used and approved by the Department.

as installation of all equipment shall also conform to the applicable. Codes and practice

as per the IS and shall be executed to comply with the lates Indian Electrical rules as

regards the safely, payable of equipments and other essential provisions specified

iv. Only approved make of cable shall be used. ICC and CCI will be preferred,

v. The cables shall generally be laid as per is Code of practice.

III. GENERAL RULES CABLE LAYING:

i. Installation shall be carried out in a neat workmen like manner by skilled experienced

and competent workmen in accordance with the standard practices.

ii. Cables shall be laid preferably in one length to avoid joins. If straight joints are found-

necessary, these can be introduced with prior approval of the Engineer-in-charge. The

cost of the straight joint however, shall not be borne by the Department. But in no case

joint shall be within the conduit G.I. pipe and duct.

iii. Proper care should be exercised in handling the cable to avoid formation of kind etc. and

should it become necessary a cable be bent to a radius not less than 20 times the

overall diameter of the cable.

iv. Method of installation, routing of cable etc. shall in every case be subject to the

Department’s approval and the contractors shall modify and or certificate no extra cost to

the Department’s any portions of the installation which do not meet with the

Department’s approval. All damages to the civil and other works on this account shall be

made good by the contractor at no extra cost to the Department.

The electrical contractor while notifying the building contractor for such work shall furnish

the proper draws, dully explaining the work involved of indicate at suit actual work to be

carried out as may be required by the building contractor. The electrical of any such

work as the electrical work with this to the same has been completed.

v. Where cables pass through hume pipes, contractor shall fix hard wood bushed round the

cables at the ends of hume pipes. Where the cables pass through the floors or

chambers and in such situation’s the Engineer shall require, the contractor shall seal

cable holes in a manner approved by Engineer-in-charge. Where cable. pass through

roads mullahs. etc. cables must be protected by class ‘A’ Hume pipe of diameters not

less than 6. (15cms).

vi. The cable routs shall be the shortest and these shall be minimum inference with built up

areas, lawns etc.

vii. Care shall be exercised for providing suitable props other service lines on earth at the

time of excavation. Where cutting of a lawn inevitable it should be with the approval of

the Engineers-in-charge.

viii. Excavation of the trenches shall be executed with vertical sides and the trenches shall

be kept as straight as possible. The exact location of each trench shall be settled by the

Engineer-in-charge. On the site when the contract is in a position to commence each

portion of the work.

The trench shall be not less than 1/2 meter wide and 90 cms deep. If more, cables are to

be laid, .the width should be suitably increased.

ix. After the cables are laid, the trench shall be filled in layers, the each layer being weal

rammed by spraying. water and consolidated and sufficient alloviance made for

settlement. The extra earth over the trench should be removed from the place of trench

to a place as decided by the Engineer-in-charge at site.

x. Ends of cables shall be property sealed to prevent entry of moisture prior to installation.

xi. Where it is as specified as 1/2 core cables the 1/2 core shall be a natural conductor

having reduced section.

xii. For all multi core cables each core and tails shall be brought not, marked and or colored

in on approved manner.

xiii. Cables termination shall be done with suitable compression brass glands in the case of

PVC cables and cast iron trifurcating boxes in the case pf APLSTS cables. The Armour

should be connected to the right main earth building with duplicate earth wires as per the

relevant IS/BS specification.

The core insulation over each conductor shall however be retained through out the run

of the conductor upto the end where lungs shall be fitted thereon for connections. The

lungs shall by fitted by means of approved solder and the such as aleap and Eyer NO.7

liberally used. The joint shall be mechanically strong and pressure tested.

2.6 DISTRIBUTION BOARDS AND PANELS.

General Requirements :

2.6.2 All distribution panels shall comply with lEE. Rules 60-61. A clear distance of 0.91 b

meter in front of the switch board shall be kept. Where bare connections of attachment

are provided at the back of the switch board the space behind the panel shall begetter

less than 0.299 meter or more than Q.762 main width there shall be a passage way from

the further outstanding part of any attachment or conductor. If the space behind the

switch board exceeds 0.70 main width there shall be a passage way from either end of

the switch board clear to night of 1.928m width 0.299 m. All wiring connection shall be

made neatly and securely.

2.6.3 For crocoites carrying more than 10 Amps, tinned cable sockets shall be used, all

connections shall be so made as to form own diagram Circuit shall be clearly numbered

to correspond-to wiring diagram. Names of the distribution boards shall be painted as

directed by the Engineer-in-charge. All the which fuse units and isolators D.Bs. shall be

complete with earthing studs lugs neutral bar ink. H.R.C. fuses and of approved make.

2.6.4 Skeiten type panels shall have a rigid from work adequately braced and supporting

frames adequately braced over which sheet metal shall be nearly secured. All switches

distribution boards etc. shall be neatly arranged on the panels and all connections made

from the back of switches. The panels shall be rendered dust and vermin-proof. The

interior of the panels shall not be accessible to unauthorized persons.

2.6.5 The recess type boards shall .be embedding wall in –a cupboard with a metal hinged

door with locking arrangement. In all recessed conduit work all distribution boards shall

be recessed. Where recessing is not possible, free standing panel may be provided as

approved by the Engineer-in-charge.

2.6.6 All individual components the switch fuse units D.Bs. etc. shall be connected by earth

connected by earth continuity wire of appropriate size with the main earth bus of the

D.B.etc.The panel switches of D.Bs. shall be earthed by the less than 2 distinctive paths

to earth. Earthing of metallic parts of exposed metal shall not be effected through any

structural metal work which houses the installation. Where metallic parts are not required

to be earthed and are liable to become alive should the installation of the contractor

become defective such metallic parts shall be separated by durable non conducting

malarial from any structural work.

(a) Power panels shall be 3 phase, 4 wire, 400.230 volts for the distribution of 3 phase or

single phase power loads. Lighting panels shall be 3 phase 4 wire 400/230 volts for

single phase lighting load distribution on all 3 phase.

(b) All panels shall be done of protected front type with no mechanical or electrical defects.

(c) Bus bars shall be of electrolytic copper or alluminium as specified and the properly

tinned sizes as indicated on applicable drawings as required.

(d) All knock outs for branch circuits entries shall be drilled and filled as required, for lighting

panels the top and bottom cover plates shall be. removable type.

(e) Main disconnect device for all panel boards shall be of switches of disconnect type and

of the size as indicated shall be mounted directly below the panel or through a short

thread conduit of required size.

(f) The main disconnect for all panel boards shall have an entry suitable for PVC Armored

cable from bottom.

(g) All panel boards shall be provided with an earthing terminal and lug for connection to the

grounding system.

(h) Temperature rise of all electrical parts shall not be more than 300c With full load

amperes at room temperature.

(i) All barnes and supports of current carrying parts shall be of moisture resistant insulating

material and shall not be adversely affected by arcing.

(k) The locations of panels shown in the drawings are only tentative; panels may be located

at a place approved by the Engineer-in-charge.

(I) All civil works connected, with fixing such as grouting chasing and making good shall be

the Tenderer responsibility.

(m) Wires adequate capacity with proper size of lugs shall be used for inter connections.

(n) Panel should be self supported on angle channel iron frame work. It should be preferably

of bolted construction in case bolted or grated rigidly after leveling and alignment.

(0) The cupboard and D. B. should be of such size so to be accommodated in the existing

room as per 1.5 rules and I.S. codes of practice for installations of Medium voltage

(p) Fabrication drawing showing the detailed dimensions and panels and its components

indicating the frame work, earthing positioning of switches. 6 Bs. cable boxes, adopter

chambers etc shall be furnished to the Engineer-in-charge for his approval. All material

to be got approved by the Engineer-in-charge. Panel should be guaranteed for

satisfactory operations for a period of one year after handing over.

(q) The panel should be painted with anticorrosive paint suitable for humid ,and salty

atmosphere on two coast to primer.

Switch Gears, powers panels D. B. And S.F. Us.

phase busbar, the Sizes of the bus bars shall be so selected that the current density in

bar does not exceed 150 amps, per sq. m. for copper. The length of Dus-bar chamber

should be as suitable length to fix all the switches etc. as per the prevailing standards,

clear spacing of two adjacent buses shall be 1 a/2" minimum bar should be tasted all

along with colour coated 11 KV grade PVC tape The maximum internal of support for

each unsupported length shall exceed 600 mm.

The bus bar shall be of copper/alluminium and fabricated to the relevant standards

specification. In case alluminium bus bar is used special with high conductivity alluminium bus

bar alloy E 91 C frame conforming to E.S.S. 2898 shall be used. The current density shall not

exceed 8OOA per sq. inch. Hylam barriers will be provided over the joints to prevent any short

The bus enclosing shall be made out not less than 16 gauge M. S. sheet construct on

with angle iron support. All interconnections between bus bars S. F Us and O. Bs shall be of

adequate size and details of such inter connection shall be furnished to the Engineer-in - charge

for his approval.

The busbar shall be air insulated extensible type rectangular one. The bus bars chamber shall

be dust tight by providing gaskets secured property so as to tender it veritin proof.

The combination fuse switch unit should comply with IS 4064 BSS61 and BBS 2510 wherever

applicable. It should be suitable to accommodate High Rupturing capacity cartridge Fuse links

complying with IS 2208 or BS 88 and having a certified rupturing capacity of not less than’

MVA at 4440 volts (ACS duly Q The switch gear (panrs D, Bs. etc. shall be installed generally

as per is-Part -1 3072 and as specified and shown in drawings.

All fuse switch units shall be provided with, non-deteriorating HRC fuse links complying with IS

2208-1962 and having rupturing capacity of 35 MVA at 415 volts or as specified.

All switches above 60 amps, rating shall be provided with suitable size adapted boxes. All

switches mounted-on the top of the busbars shall be provided ,with detachable type reverse

entry adapter boxes. Suitably engraved tables shall be provided for each circuits as well as for

A meters sector switches and LMH meter shall be provided where. specifically

mentioned. Small wiring for the inter-connecting shall be colour coded and provided with

numbered teuses for easy identification of circuits.

(a) The distribution boards should be totally enclosed metal clad complying with B. S.

the M. S. sheet steel enclosures for recessed D. Bs. shall be of not less than 14 gauge.

(b) The D. B. shall be with hindod dooi and the locking arrangements as approved by the

Engineer-in-charge.

(c) All the components shall be enclosed in the enclosure. The mounting of D. B. shall be

got approved by the Engineer-in-charge before carrying out the installation.

(d) The D. Bs shall have proper side-cut outs for conduits entry or cable entry as required

and these shall be made on site

(e) Adequate spacing shall be provided inside the D Bs. for easy removal of the fuses and

carry out the interconnection.

(f) A set of insulating bamers have to be provided between incoming breakers switches and

Switch fuse Units:

(a) All the D.P.T.P. and T. PN. Switch fuse units shall be totally enclosed iron a clad quick

make, quick break type to best Indian make conforming to the I.S. or S.

specifications. All the switch fuse units shall have mechanical Interlock with a door so

that the door so that the door cannot be opened when the swatches are in ON position.

The switch should be of double be i>\ solution type to ensure safely.

(b) Each T.P & T.PN switch fuse unit shall be earthed with two distinct each connections.

(c) Suitable insulator shall be provided between phase.

(d) There shall be suitable natural link in the fuse box.

(e) All T.P and T.PN: switch fuse units snail be rated for 500 volts and D.P, (required for

single phase supply) and S.PN. switches for 250 volts.

(f) The H.HC. catndge fuse shall conform to U.S. 88 (1952).

The O.C.Bs. ACS shall be suitable for 400/440 volts 3 phase escapable of interrupting a

fault MVA of not less than 31. The circuit breaker shall conform to the BSS-936 1940. BSS

with such tripping arrangement as may as required under special specification is for the

building. Efficient and fool - proof mechanical interlocking shall be provided for the safe

operation and maintenance. The rate be inclusive of the first filling of oil.

2.7 Instrumentation:

Tile instruments and meters wherever necessary shall be housed in special sheet steel

box located between switch fuses units and bus bar chambers. The instruments etc. shall be

mounted on the hinged cover with heir dial flushed. All instruments shall have protective H. R.C.

fuse links. All interconnections and small wiring shall be neatly dressed arranged and duly

coloured 10r easy identification of circuits.

Meters shall be provided as required in the Schedule, Meters shall be dead head and be

suitable for 400/ 440 volt 3 phase 4 wire 50 c/cie (in balanced load) supply.

Each section switch shall be 3 point and of minimum 250 volts grade with silver tipped

contact suitable for metering circuits, current transformers shall be of 5VA burden and

commercial metering accuracy. Indication lamps shall be penal mounting type preferably of

250V grade. Every unit shall be prewired and interconnected to the system for its required

indicating performance. Indicating lamps shall have independent circuit fuse.

2.8 FIXING OF LIGHTING FIXTURES:

1. Location of fixtures their manner of fixing mounting height etc. are indicated in relevant

drawing. Actual location and levels shall however be arrived at site in co-ordination with

other service etc. and prior approval of the Engineer-in-charge regarding the actual

location Manner of fixing shall be obtained before the work is taken up in hand.

2. In all cases the contractor shall provide necessary interconnection wiring earthing

painting etc. all necessary for complete instolation. The contractor shall also test and

commission the fixtures during completion of the work.

3. General arrangement of fixtures layout is indicated in drawings. Care shall be taken to

see that all light fixtures are in a row in a room or particular area, are in absolute line and

plump and are symmetrically disposed with respect to finished surfaces of walls,

columns beams etc.

4. The inter-connections wiring from the light outlet point upto the fixture shall be carried

out by means of flexible copper wire of section not less than 1.5 mm2.

5. All fixtures suspended by means of conduits shall be done with all and socket joints or

as per approved design.

2.9 Telephone system:

1. Empty conducing shall be done recessed or exposed to surface along with pulls boxes,

junction boxes and telephone outlet boxes, in areas. and location as indicated in the

relevant drawing as per materials and methods as described in regard to conducting

under section "Wiring in conduits” except the G.I. pull wires of gauge not less than

SWG shall be dept pulled through conduits in aII sections so that in future telephone

wires can be pullet. easy.

2. Location shown on the drawing are proximate and final location shall be decided in the

field by the Engineer-in - charge.

SPECIFICATION FOR EARTHING &

1. Installation of Earthing Plates:.

All installation of earthing shall conform to Indian Electricity Rules, IS - 3043 latest

edition and I.E.E. the copper earth plates should be tinned before installation. the earth

plates of copper 60 cm x 60 cm x 3.515 mm thick size as mentioned in the schedule be

in separate pits at least 150 cms to 300 cms. away from the building at a depth

necessary to reach moist earth surface but with a minimum depth of 2.5 Mtr from the

finished ground Level upto the top vertical dodge of earth electrode. The earth plate shall

be thoroughly cleaned to remove all dirt from the surface and be tinned property for

electrical contact with the main ground. Each earth pit should be provided with 38 mm.

dia . G.!. pipe 2.5 Mts.long or more depending upto the depth of pit, put over the vertical

edge of earth plate (with top end of pipe provided with a closed to couyler.) Alternative

layers of salt and coke shall be provided surrounding the plate. The pits shall be filled

when the plates are in position and with the approval of Engineer-in-charge.

To facilitate watering the pit, a concrete compartment should be made-with funnel with

mesh and cover plate as per rules provide in ISI regulation. The masonry endorser’s

shall be 25 cm x 25cm x 25 cm (deep) with C.I, lid of 23 cm x 30 cm x30 cms. size. After

installation, the earthing resistance of each earth plate should be measured by

resistance meggar in the presence of Engineer-in-charge, three days after the

completion of earthing work, and the value should conform to regulations.

Signature of contractors Executive Engineer,

1.0 Energy Saving Concept. 4.2 Table Showing categories of the

1. For Indoor and Outdoor Lighting, materials to be used In Residential

Energy Saving Fittings are proposed Buildings.

in the SOR and shall be preferred Type of Residential Category of

mostly Category on

2. Selection of Fittings & Lamps shall buildings. services

be made after obsening required material

optimum illumination level of the (1) Category ‘E’ type II II

place. Quarts. &”Category’s”

3. For internal wiring of the switchgear Iypo qrts.

pannels specialized fireproof wi-es (2) Category 'C’ & ‘D’ type II II

included in the SOR shall be used. Orts. & Category

4. For selection of pump sets, storage “IV” type qrts.

capacity usage of water quantity & (3) Category’ A’ &’B’ type I I

head shall be considered for. Qrts. & Category

required optimum HP of Motor pump “II” type qrts.

Sets. (4) Hostels I I

5. For the Corridors and Passage 4.3 Table showing categories of

Lighting in general office buildings materials to be used In N.R. Bldg.

CFL I Energy Saving fitting shall be Type of Non-Resi- Category of

preferred. Category 0f

6. For Routine Maintenance of Motor entail buildings. services

Pump. Sets, Window and Split Type material

A.C. Machines, Fans, Water Coolers (1) VIP chambers, II II

and Geysers yearly comprehensive Assembly etc.

maintenance cost is included in the (2) M.S.Buildings, II II

SOR and shall be put in use widely Laboratories, X-Ray

for avoiding piece work Machines, Central

maintenance. Air-conditioning Plants,

7. For Point wiring above 10 Mtr of Circuit Houses etc.

length, addition length will be added (3) For Non Residential II II

at rate of mains. buildings other than

8. For point wiring In bathroom and listed above.

WIC in resi dental quarters (4) Common passages, II II

reduce overall rate by 50% of point stairs, toilets etc.

wiring for light,3 4.4.1 list of approved materials under

9. For E.I. work in Highly Security each category-should be enclosed

restricted areas like Jails, V.V.I. P. with the tender documents and the

Residences, add 10% of overall cost Tenderer should mention the brand

of estimate, name of material selected for use in

2.0 Rates for electrical installation work the said tender and the same should

In Isolated places be enhanced by be finalized before acceptance of the

the percentage given as under tender. Placing of the order for such

(i) Dangs and Ketch Districts +25 % category materials should be started

(Except 01st Head Quarter) after acceptance of the tender. At

(ii) Dam site + 15 % the time of recording measurements

(iii) Outside Gujarat State +30 % in the measurement book, specific

3.0 Rental charges for temporary brand name of actual make of

Electrical Installation works: material used should be written in

(i) Full rate shall be paid for the first place of approved make borne on

day at 10% of capital cost for packed the list approved materials.

new items & for used materials 6%

of capital cost of the complete item

shall be taken.

(ii) 50% rate of first day, rate shall be

paid for second day.

(iii) 10% of first day’s rate shall be paid

for subsequent days or part there of

beyond two days.

4.0 APPROVAL OF MATERIALS:

4.1 When category wise Materials are

available the same should be used

for Electrical Installation works.

5.0 NCN S.O.R. ITEMS: 8.0 Earthing:

Rates for items Viz. Transformer, The Section officer (A.2 I A. A. E.) in

Lifts, Air-conditioning plants are based on charge of work should remain present

the capacity and ,design parameters during the execution of item of earthing and

adopted by the different firm depending on the certificate to the effect should be given

R & D workshop collaborations. These accordingly and be preserved in Sub-

items are not very frequently used for Divisional Office with record of such work.

Electrical Installation works, so the

budgetary price should be considered while 9.0 Laying of pipes for concealed works:

preparing the estimate and the D.T.R For For the concealed wiring in large buildings

such Non S.O.R. items the changes of where the formalities far sanction and

capacity, for different makes while framing tendering works may delay the laying of

the estimate market price should be concealed pipes along with the civil works

ascertained from reputed manufactures will be carried out departmentally. The rates

including the price escalation likely to occur for pipes are given in the S.O.R. The

between preparation of the estimate and the concealed pipes must be laid along with

actual tender. Non S.O.R. items which are Gauge fish wire. No reduced rates shall be

required to be used frequently should be proposed for deletion of fish wires. Zero

proposed by the field officers for inclusion measurements shall be proposed for such

for ensuing S.D.R. 1997-98. All the cases.

proposals or modification in the existing For the remaining works of wiring in

S.O.R. items should be proposed along with existing pipes, the rates shall be adopted as

supporting data before the end of calendar per the items mentioned in this S.O.R.

year. which includes the wires, accessories,

laminated sheets and remaining all except

6.0 LIST OF APPROVED MATERAILS pipe.

The makes of following accessories,

equipments. switch gears etc. are approved

for use on E.I. works (Surface I Concealed)

in this Deptt., subject to the condition that

the said materials do confirm to requisite

I.S.S. requirements or do have I.S.I.

Certification/ I.S.I. Marks. The brand names

& material on list are applicable only for use

on works by contractors and in

departmental tendering works for

procurement directly on works by offices of

this department. In respect of purchase

under D.G.S.& D. Rate Contract. the rate

contract shall hold good.

Any material required for use on

works etc. and not on list shown with S.D.R.

shall be approved by the appropriate

authority of the Department, looking to the

merits of use. This shall be within preview of

concerned Executive Engineer (E) &

Superintending Engineer (E) as shown in

tender clauses.

7.0. Approval of Materials on Work:

The Samples of Materials to be used

in a work should be approved by the officer

not below the rank of Executive Engineer

(Electrical; and an entry should be mac’e in

register of materials for this purpose only

and the samples should be retained by

department For any’ one work onu brand to

be approved for use.