WBPHE/EE/SMD/NIeT-12 of 2024-25/2

Amount

Repairing of ATS and re-installation after repairing

Inspection and thorough examination of the defective ATS starter for the sake of fault identification associated with that by engaging competent technical personnel having adequate knowledge regarding the same on urgent basis at site.

Dismounting and taking out the defective ATS unit from its existing position by engaging skilled technician, accompanied by competent personnel and applying necessary T&P after disconnecting the line from power circuit and control circuit including taking proper precautionary measures as per direction of EIC.

Supply & delivery of the following materials at site:-

4P, 630A manual Changeover switch-disconnector in sheet steel enclosure (L&T/Approved make) (To sustain operational condition of standby raw water pump, in absence of one number ATS starter)

1.1 kv Grade, 240 sq.mm, 3 core XLPE insulated Aluminium armoured cable conforming to IS 7098 (Part-I) 1988, with up to date amendments (Gloster/Approved make)

Laying of the above supplied cable (Item No. 3.02) on wall/surface including S&F of MS clamps, making hole etc. as necessary, and mending good damages.

Finishing the end of the said cable by crimping method incl. supplying and fixing solderless socket, tapes, anticorrosive paste & jointing materials.

Transportation of the defective ATS from site to workshop at Kolkata and workshop to site after necessary servicing/repairing along with the charges for loading and unloading.

Taking out the coil-core assembly after draining out the oil and dismantling the same followed by cleaning the carbon particles.

Supply & delivery of the following materials as per sample at site:-

Nomex insulated copper wire (deduction of cost for old damaged winding retained by the entrusted agency is considered).

All kinds of insulating materials.

Transformer oil as per IS 335-1993.

Labour charges for copper windings (for 3 nos. coil) by engaging competent personnel including cost for silver brazing and placing the entire repaired core-coil assembly inside the tank followed by all connections complete.

Heating of the complete core-coil assembly at workshop for removing the moisture and improving IR value up to the mark.

Charges for carrying out routine tests on transformer after all fittings and connections completed.

Disconnecting the changeover switch (as previously installed on temporary basis) and the connected cables therewith after disconnecting the power line.

Supply & delivery of the following materials at site:-

Double compression gland for 240 sq. mm. x 3C cable

Aluminium socket for 240 sq. mm. x 3C cable

Fitting and fixing of the repaired ATS in position and making all the relevant electrical connections complete including necessary retermination using the materials (Sl. No. 13.01-13.02) and proper T& P by engaging skilled technician accompanied by competent personnel. This includes the cost for involvement of skilled techinicians on emergency basis in interst of normalising the operational condition at raw water pumping station at the earliest.

Miscellaneous

Dimantling and taking out the defective battery therefrom the existing 30 KVA DG set (Make-Western Consolidated Pvt. Ltd.) at Bhagirathi Inspection Bungalow beside the 34 MGD RWPH building.

Supplying of 80AH battery (Type-XP800)(Make-Exide) for the above mentioned DG

Fitting and fixing of the newly supplied battery in position inside the DG.

Supply & delivery of the following materials at site:-

50 mm dia medium gauge GI Pipe (ISI-Medium) protection with necessary fittings and jointing metarials as required. [Ref : PWD Electrical Schedule, Page-F6, Item No.-11(d)]

1.1 kv Grade, 25 sq.mm, 3.5 core XLPE insulated Aluminium armoured cable conforming to IS 7098 (Part-I) 1988, with up to date amendments (Gloster/Approved make)(For enabling DG connection at RWPH)

Cutting holes and subsequent mending good damages for leting pass the power cable (as following) below the concrete road surface.

(a) Diameter upto 150 mm

(ii) In concrete work (plain or R.C.) [Cement- 3.0 Kg/Mtr]

(Ref : PWD Building Schedule, Page-12, Item-12)

Laying of the cable [supplied vide Item No. 18.02 or departmental (if in stock)] partly through GI pipe and the rest on wall/surface incl. S & F MS clamps, making hole etc. as necessary, and mending good damages.

Through GI Pipe

On wall/surface

Supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of XLPE/PVC armoured cables as below :

Finishing the end of the above cable by crimping method incl. supplying and fixing solderless socket, tapes, anticorrosive paste & jointing materials

Supply & delivery of the following materials at site:-

2000 Ltr Capacity PVC water storage tank of approved quality with closed top with lid (Black)-Multilayer

25 mm GM Ball valve (Inlet)

40 mm PVC Ball valve (Outlet)

PVC Tank connecting nipple

25 mm (Inlet)

40 mm (Outlet)

Self priming monoblock dewatering pump set, coupled with 1.5 HP, AC 220V, 2900 RPM single phase motor having the following specifications:-

Size (Suction x Delivery) - 25 mm x 25 mm

Head range - (10 mtr - 52 mtr)

Discharge range - (3960 LPH - 360 LPH)

(Model : MEGA-54S, Make-Kirloskar/Eqivalent type of any other departmental approved make)

Supplying, fitting and fixing PVC pipes of approved make of Schedule 80 (medium duty) conforming to ASTMD - 1785 and threaded to match with GI Pipes as per IS : 1239 (Part - I). with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple, longscrew, reducing socket, reducing tee, short piece etc. fitted with holder bats clamps, including cutting pipes, making threads,fitting, fixing etc. complete in all respect including cost of all necessary fittings as required, jointing materials and two coats of painting with approved paint in any position above ground.

25 mm (Inlet)

40 mm (Outlet)

Dismantling and taking out the defective/broken out PVC tank/monoblock pump set, and fitting fixing the materials (Item no. 23.01-23.05) in position by engaging competent manpower including making necessary scaffolding arrangement and electrical interconnection by supplying relevant wiring materials followed by carrying out testing & commissioning complete.

Add GST @ 18%

S. P. CONSTRUCTION

JAGANNATH ENTERPRISE