REPAIR/MAINT OF HT DISTRIBUTION NETWORK INCL OCB, VCB ETC AND TRANSFORMER INCLUDING DEHYDRATION AT NAVAL DOCKYARD UNDER GE (NW) KUNJALI, COLABA, MUMBAI

Amount

Supplying , laying, Jointing testing and commissioning of HT UG cable, XLPE insulated, screened insulated,armoured and PVC bedded, 11000 volts grade (heavy duty) suitable for earthed system with aluminium conductor of size 3 core 240 sq.mm conforming to IS-7098 Part II laid in trenches, fixed to walls or passing through pipes and connecting up including taking out unserviceable cable complete all as specified and directed by Engineer-in-Charge.

Material & labour cable End Termination Box, HEAT shrinkable, Indoor type suitable for 6.6-11KV, 50 to 95 sq.mm XLPE, 3 core power cable with aluminium conductor including dismantling old cable end termination of any description complete all as specified and directed by Engineer-in-Charge.

Material & labour cable End Termination Box, HEAT shrinkable, Indoor type suitable for 6.6-11KV, 120 to 185 sq.mm XLPE, 3 core power cable with aluminium conductor including dismantling old cable end termination of any description complete all as specified and directed by Engineer-in-Charge.

Material & labour cable End Termination Box, HEAT shrinkable, outdoor type suitable for 6.6-11KV, 50 to 95 sq.mm XLPE, 3 core power cable with aluminium conductor including dismantling old cable end termination of any description complete all as specified and directed by Engineer-in-Charge.

Material & labour cable End Termination Box, HEAT shrinkable, Outdoor type suitable for 6.6-11KV, 120 to 185 sq.mm XLPE, 3 core power cable with aluminium conductor including dismantling old cable end termination of any description complete all as specified and directed by Engineer-in-Charge.

Material & labour straight through joint , HEAT shrinkable, Outdoor type suitable for 6.6-11KV, 50 to 95 sq.mm XLPE, 3 core power cable with aluminium conductor including dismantling old cable end termination of any description complete all as specified and directed by Engineer-in-Charge.

Material & labour straight through joint , HEAT shrinkable, Outdoor type suitable for 6.6-11KV, 120 to 185 sq.mm XLPE, 3 core power cable with aluminium conductor including dismantling old cable end termination of any description complete all as specified and directed by Engineer-in-Charge.

Note for item no. 1 to 7: above quoted rates deemed to included for fault fiding manually or by machine and repairing it within 12 hrs.

Material & labour for: (i) Disconnecting the HT/LT side and earthing connections of the transformer (ii) Lifting transformer with the help of crane, loading on suitable vech to transport it to the workshop at and Unloading at workshop for servicing (iii) Dismantling of HV/LV bushing, opening of top cover, disconnecting of connections of tap changer of transformer (iv) Draining out the complete transformer oil (v) Lifting up the core and winding assembly (vi)washing and cleaning the core, rewinding of all burnout, damaged coils of core and phase , transformer tank and radiator fins with help of pressurised transformer oil for removal of sludge and sludge deposit so as to make them free from dust, dirt and sludge deposit (vii)Heating and ovening of core and winding assembly complete in vaccuum chamber for 72 hours so as to remove any moisture content in the core/winding and attaining requisite IR value (viii) Retanking of complete core & winding assembly & fixing tap changer after servicing and testing (ix) Refixing HV/LV bushing and making all internal connections, (x)Providing new gasket packing minimum 12mm thick, including nut bolt washer complete (xi) Transporting transformer back to the site , Lifting it down with the help of crane and reconnecting the HT/LT cable and earthing connections complete all as specified and directed by Engineer-in-Charge and of followings capacities:

500 to 630 kVA, 6.6-11KV/433V

631 to 1000kVA, 6.6-11KV/433V

1001 to 1600kVA, 6.6-11KV/433V

1601 to 2500kVA, 6.6-11KV/433V

Note for item no 8.01 to 8.04 :- (i) In case of damage during transport / loading/unloading at any stage after recipt of transformer from Dept, the contracor shall be repsonsible for damage and it shall be made good by him at his own expense the decision of Engineer in charge in the regards shall be fixed & binding. (ii) Transformer oil required for filling shall be measured and paid seperately (iii) All other spares required shall be measured and paid sperately (iv) Rates are inclusive of testing of earthing before connection of transformer

Material & labour for shifting transformer upto 2500 kVA, 6.6-11KV/433V, from location inside Dockyard and connecting HT/LT side to provide temporary supply during repair of transformer and disconnecting HT/LT connections before installations of repaired transformer location within Naval Dockyard complete all as specified and directed by Engineer-in-Charge.

Material & labour in repairs HV side Brass studs threaded both ends of suitable size and length including metal and rubber rings,. Bolts washer, etc. suitable for 500 to 1600 KVA Transformer ( Indoor or Outdoor type), 6.6-11KV/433V, step down/ step up of any make / model complete all as specified and directed by Engineer-in-Charge.

Material & labour in repairs HV side Brass studs threaded both ends of suitable size and length including metal and rubber rings,. Bolts washer, etc. suitable for above1600 KVa Transformer ( Indoor or Outdoor type), 6.6-11KV/433V, step down/ step up of any make / model complete all as specified and directed by Engineer-in-Charge.

Material & labour in repairs LV side Brass studs threaded both ends of suitable size and length including metal and rubber rings,. Bolts washer, etc. suitable for 500 to 1600 KVA Transformer ( Indoor or Outdoor type), 6.6-11KV/433V, step down/ step up, of any make / model complete all as specified and directed by Engineer-in-Charge.

Material & labour in repairs LV side Brass studs threaded both ends of suitable size and length including metal and rubber rings, Bolts washer, etc. suitable for above1600 KVA to 2500 KVa Transformer and above Outdoor type, 6.6-11KV/ 433V step down/ step up ) of any make / model complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing in repairs HV/LV side Porcelain Bushing / Insulator of suitable size suitable upto 2500KVA Transformer, Outdoor type, 6.6- 11KV/ 433V , step down/step up, of any make / model complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing in repairs HV/LV side Porcelain Bushing / Insulator of suitable size suitable for above 500KVA Transformer, Outdoor type, 6.6- 11KV/ 433V , step down/step up, of any make / model complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing in repairs Silica Gel container with first fill of Silica Gel transparent type suitable for transformer of capacity 500 KVA to 1250 KVA complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing in repairs Silica Gel container with first fill of Silica Gel transparent type suitable for transformer of capacity above 1250 KVA to 2500 Kva complete all as specified and directed by Engineer-in-Charge.

Testing of di-electric strength of transformer oil of transformer indoor/outdoor type,6.6kV/433 Volts,before filteration and to remove moisture and impurities and to improve di-electric strength above 48 kV /minute through filtration plant including filling of new transformer oil for topping up, testing complete all as specified and directed by Engineer-in-Charge. Filtration of transformer oil by electrically operated transformer oil filtration plant to achive a test result of 48 KV/min for distribution transformer and 80 kV/ minute for power transformer for 2.5 mm gap complete all as specified and directed by Engineer-in-Charge. Notes: (i) Testing machine and Transformer oil filtration plant as well as dehydration facility will provided by the contractor (ii) New transformer oil shall be measured and paid separatelly under respective items.

Supply only Transformer Oil as per IS 335/93 dehydrated to give BDV value not less than 50 kV when tested with 2.5mm gap electrode complete all as specified and directed by Engineer-in-Charge.

Supply only Silica Gel in air tight container suitable for Dehydrating Breathers of Transformers complete all as specified and directed by Engineer-in-Charge.

Material & labour for replacement of the following for 500 kVA to 2500 kVA,6.6/6.6-11KV/ 433V transformer:-

Oil level indicator

Tap changer

Dial type 100mm dia oil temp meter

Air release plug assembly

Drain plug

Gun metal oil drain valve 25mm /40mm

Material & labour for spraying painting to Indoor/Outdoor type, Step up/ step down/ step up Transformer 6.6/6.6-11KV/ 433 V installed at different locations of ND area after scraping thoroughly the existing corroded paint / rust, filling of cavities and applying one coat of silicon acrylic heat resistant paint of approved quality of approved colour and writing the details such as, SM/MES No. etc. complete all as specified and directed by Engineer-in-Charge and following capacity.

500 to 630 kVA

631 to 1000 kVA

1001 to 1600 kVA

1601 to 2500 kVA

Material & labour for PCC 1:4:8 Type D2 using 40 mm graded crushed stone aggregate as in foundation including form work and finishing the exposed surface of concrete even and smooth complete all as specified and directed by Engineer-in-Charge.

Material & labour for PCC 1:3:6 Type C2 using 40 mm graded crushed stone aggregate as in foundation, filling and mass concrete complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing ACB 2500A, EDO type 4 pole , retrofit Type , designed as per exisitng LT panel complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing ACB 1600A, EDO type 4 pole , retrofit Type , designed as per exisitng LT panel complete all as specified and directed by Engineer-in-Charge.

Material & labour of the PVC board of appropriate size and thickness duly pasted with computerised letter mentioning " NO SMOKING" , " DANGER 11000 volts with skull and cross painted, " NO ADMISSION EXCEPT ON DUTY, " SM/MES NO." for the transformer/HT breakers/DG sets including accessories etc for the substations including accessories for properly fixing the same on wall/fencing/pole complete all as specified and directed by Engineer-in-Charge.

Material & labour for fixing standard shock treatment chart in English & Hindi duly framed and covered with glass complete all as specified and directed by Engineer-in-Charge.

Supply , fixing, testing in repairs of JEF ECO SAFE Maintenance Free Grounding Solution set comprising of High tensile low carbon steel rod of 3 Mts length & 25 mm dia with 250 micron ( averaSchneider ) molecularly bonded copper on the outer surface to confirm with requirements of UL467 along with Back-fill compound strictly be a Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound should be electronically conductive ( Like in metals ) and should not depend on moisture for conduction. JEF Powerfill Loresco compound shall be supplied in 50 Pound Bag. (1 Bag of 50 Pounds required per earthing set). Back-fill comound should be environment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground. A suitable earth terminaton clamp should also be supplied along with the set alongwith earth pit weatherproof complete all as specified and directed by Engineer-in-Charge. Note : Back-fill compund shall not be mixed with any soil while pouring in the bore hole.

Supply of JEF ECO SAFE Maintenance Free Grounding Solution set comprising of High tensile low carbon steel rod of 3 Mts length & 32 mm dia with 250 micron ( average ) molecularly bonded copper on the outer surface to confirm with requirements of UL467 along with Back-fill compound strictly be a Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound should be electronically conductive ( Like in metals ) and should not depend on moisture for conduction. JEF ECO SAFE compound shall be supplied in 50 Pound Bag. ( 1 Bag required per earthing set). Back-fill compound should be environment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground. A suitable earth terminaton clamp should also be supplied complete all as specified and directed by Engineer-in-Charge Note : Back-fill compound shall not be mixed with any soil while pouring in the bore hole.

Supply & Fixing for repair of Earth continuity conductor or main earthing lead of following size of galvanised iron strip fixed to wall on batten or recess or chases or buried in ground or drawn in conduct/pipe or fixed to poles or any other indicated situation for loop earthing etc, as required complete all as specified and directed by Engineer-in-Charge

Material & labour for preparation of old surfaces of Transformer foundation and applying two coat of cement based paint on it, complete all as specified and directed by Engineer-in-Charge

Supply & Fixing in repairs 6.6-11 KV single phase current transformer (CT's) conforming to IS-2075, VA burden - 1VA, class of accuracy - 0.5/5P-10 / PS, Type of CT as per existing with CTR 40-20/5A/5A/100-50/5A/5A complete all as specified and directed by Engineer-in-Charge.

Material & Labour for test point terminal block made out of gun metal or phosphorus bronze size 75 x75 x 25 mm drilled and screwed including 03 Nos 8 mm dia 25 mm long hexagonal head screws to be fixed on steel structure with drilling/tapping and clamping etc complete all as specified and directed by Engineer-in-Charge.

Material & labour galvanised pipe including fittings, light grade fixed to poles, on walls laid under road in trenches for protection of underground cable all as specified of 100mm dia complete all as specified and directed by Engineer-in-Charge.

Provision of cutting bituminous road at a width not more than 30cm and a depth not exceeding 60 cm for laying of pipes on road crossing for cable protection and making good with the existing surfaces with 1:3:6 PCC, complete all as specified and as directed by Engineer-in-charge.

Supply and fixing insulation mat as per IS 15652:2006, having not less than 30kV dielectric strength and having insulation resistance of not less than 1MOhm, acid retardent, flame retardent with auto glow band, having width of 1.0mtr and length upto 2.0 mtr, of thickness not less than 2.50 mm complete all as specified and directed by Engineer-in-Charge. Make: Electromat or as approved by GE.

Supply & Fixing in repair LED lamps of existing LT panel board and supply and fixing new LED Lamp including making necessary electrical connection complete all as specified and directed by Engineer-in-Charge.

Supply and fixing cost effective, durable and reliable 6.6-11 kV heat shrinkable anti tracking bus bar tubing sleeve of dia 50mm, for Bus bar of VCB's, flame retardent and protetcion against moisture,dust including all accessories complete all as specified and directed by Engineer-in-Charge. Make Jointmask 1133 series or as approved by GE.

Supply & Fixing axial cooling fans for LT panels of size 150 mm x 55mm , 230v AC complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing in repairs 11/6.6 KV Potenial transformer (PT's) as per existing size and make suitable for HT VCB panel incuding taking down old unserviceable PTs complete all as directed at site by Engineer in chrage.

Supply & Fixing in repairs 11/ 6.6 KV Spout as incomer [RYB] one set and outgoing [RYB] one set as per existing size and make suitable for HT VCB panel incuding taking down old unserviceable Spout set complete all as directed at site by Engineer in chrage.

Supply and fixing in repair end termination box HT side with cover made of 3 mm thick MS sheets including fibre board insulation sheets & including nuts bolts and washers and painting complete all as specified and directed by Engineer-in-Charge.

Supply and fixing in repair end termination box LT side with cover made of 3 mm thick MS sheets including fibre board insulation sheets & including nuts bolts and washers and painting complete all as specified and directed by Engineer-in-Charge.

Supply and fixing tap switch suitable to vary secondary voltage + 2.5% to + 7.5% complete all as specified and directed by Engineer-in-Charge.

Material and labour for (i) Disconnecting the HT side and earthing connections of the 6.6 / 11kV RMU (ii) Lifting of RMU with the help of crane, loading on suitable vehicles to transport it to the workshop at and Unloading at workshop for servicing (iii) Servicing / Refurbishing of HT RMU which were affected during floods. (iv) Testing of CT / PT / Protection Relays and checking of all control wiring (v) High Pot on 6.6 / 11kV RMU (vi) Packing RMU in seaworthy wooden full packing as per RMU size (vi) Transportating RMU back to site and lifting it down with the help of crane and reconnecting HT side cables with all accessories required per site complete all as specified and directed by Engineer-in-Charge.

Supply and fixing 240sq.mm. Aluminium Barrel Lugs

Supply and fixing Heat Shrinkable Sleeves 450mm

Servicing, Testing with refilling of SF6 Gas in RMU

Supply and fixing 6.6 / 11kV RMU Gas Indicator

Supply and fixing KUTSD6 Connector for 6.6 / 11kV RMU

Supply and fixing CATD M4 Connector for 6.6 / 11kV RMU

Supply and fixing End Clamp Connector for 6.6 / 11kV RMU

Supply and fixing CSDPR-V2-200-D-L-N Relay for 6.6 / 11kV RMU Alsthom / Areva or equivalent

Supply and fixing Multifunction Meter EM6400METSEEM6400NGRSCL1 with RS485 CL-1 Siemens / Schneider or equivalent

Suppy and fixingTerminal Protector Rubber Boot for 6.6 11kV RMU

Supply & providing of Transformer protection relay for 1000 kva to 2500KVA transformer.including supply and erection of accessories such as control wires,lugs,ferruls,fabricating box of TPR,connector etc complete all as specified and directed by Engineer-in-Charge.

Supply and erection of limit switches for transformer capacity from 1000 to 2500 kVA complete all as specified and directed by Engineer-in-Charge.

Supply and erection of single phase blowers for transformer capacity from 1000 to 2500 kVA complete all as specified and directed by Engineer-in-Charge.

Supply and erection of heaters for transformer capacity from 1000 to 2500 kVA complete all as specified and directed by Engineer-in-Charge.

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