SPECIAL REPAIRS TO E/M EQPTS AGAINST BER TRANSFORMER AT AF STN KANHERI HILLS UNDER GE (AF) THANE

Amount

M& L for disconnecting carefully HT/LT cables from transformer, Taking up or down the LT/HT cable from ground/underground trench /floor of any size and keeping aside in safe coustody, disconnecting earthing strip from existing unserviceable transformer any capacity any make, dismantling transformer from Base platform and loading into Truck through crane or manually and transport to AGE E/M yard Kolshet (Distance from Kanheri Hills to Kolshet is approx 15 Km) and unloading Transformer safely from truck through Crane carefully complete all as specified and directed by Engineer in charge.

Supply, installations, testing and commissioning of step down Indoor type, ONAN cooled, VECTOR group Dyn-11 off circuit tap changer transformer Copper Double Wound 22 KV/0.433 KV, AC 3 phase 50 cycle 4 wire system of capacity 500 KVA on HT side to vary secondary voltage upto level ± 7.5% volts in three step 2.5% each complete with standard accessories of fitment all as per IS 1180 (Part-1_2014), BIS Level II at 50% Loading Temp Rise above Amb 400C/450C, Tap switch - Off circuit Tap Changer, Terminals HV- HV Cable box, digital type thermometer with max temp indicator conservation oil level indicator, drain valve for filteration of oil silicagel, breather, explulsion vent, buchholtz relays etc with first fill of transformer oil and complete with necesary civil work for foundation as per manufacture recommendation complete all as specified and directed by Engr-in-charge Note : - (i) Standard Fitting and accessories are as per following: (a) Lifting Lugs, Top Cover Lugs b) Earthing Terminals (c) Conservator with Oil Gauge Glass, Oil filling hole with Plug and Drain plug (d) Transformer Drain Valve (e) Bi Directional Plain Rollers (f) Explosion Vent with Diaphragm (g) Thermometer pocket (g) Air Vent Plug (h) Silica Gel Breather (j) Rating & Diagram Plate (k) Cooling Radiators (l) LV Neutral Bushing brought out for external earthing (m) First fill of EHV grade Transformer oil Necessary provision is required to entry box of transformer for cable 3.5 core upto 400 Sqmm single run on LT side and 3 core 120 sqmm cable on HT side including fixing arrangement in transformer with terminal box etc.

M&L Earthing with Galvanised Steel Earth Plate Electrode 600x600x 6mm, buried directly in ground vertically to a depth not less than 2.25 Metre below Ground Level with Top Edge of Earth Plate at depth not less than 1.50 Metre below normal Ground Level, connected to GI earth strip 25 mm x 3 mm by means of Bolts, Nuts, Check, Nuts and Washers of Galvanised Iron or Steel and GI earth strip 25 mm x 3 mm protected with and including GI Pipe 15mm bore (dia) light grade, connected to Test Point upto 7.50 Metre away from Earth Electrode situated, Earth Plate surrounded by a packed thickness of Char Coal or Coke Dust mixed with Common Salt in alternate layers of not exc.150mm thick, PCC Pit in Cement Concrete 1:3:6 (20mm graded stone aggregate) and Pre-cast RCC Cover Slab of size 350x350x50 mm in Cement Concrete 1:2:4 (20mm graded stone aggregate), reinforced with 10mm dia TMT Bars @ 100mm Centre to Centre in both ways, GI Wire Mesh, Funnel with GI Watering Pipe 20mm bore (dia) medium grade including necessary Excavation in Soft/Loose Soil, Returning, Filling in and Removal of surplus Spoil upto a distance of 50.00 Metre and all as shown in Electrical Plate No. 3 of MES Schedule Part-I and Testing on Completion including taking down old unserviceable Earthing of any description,complete all as specified and directed by Engineer in charge.

Supply and fixing cable HT jointing kit for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 22 KV voltage line with 3 core XLPE armoured aluminium conductor cable of size 95 sqm complete all as specified and directed by Engineer in charge.

Supply and fixing cable LT jointing kit for indoor termination heat shrink type joint complet with jointing material and accessories suitable for 0.433 KV voltage line with 3.5 core XLPE armoured aluminium conductor cable of size 400 sqm complete all as specified and directed by Engineer in charge.

Supply, install, commissioning and testing motor suita-ble for centrifugal pump electric driven, 415 Volt, 3 phase, 50 Hz with discharge capacity 1152 LPM, head 32 mtr or near-est higher capacity, size 100 x 100, including connecting to electric connection and water connection to suction and delivery line and testing after installation complete all as specified and directed by Engr-in-Charge. Note- Quoted Rates shall be deemed to include provision of fit-tings/fixtures of inlet / outlet connection

Disconnecting and dismantling of unserviceable existing centrifugal pump and motor set 15 HP by disconnecting from motor, suction and delivery line loading into Truck through crane or manually transport to AGE E/M yard Kolshet (Distance from Kanheri Hills to Kolshet approx 15 KM) and unloading from truck through Crane carefully complete all as specified and directed by Engineer in charge.

Taking up and disconnecting Steel Tubing 80 mm bore (dia) with Fittings/ Connections, segregating Serviceable Pipes and Fittings/ Connections and keep in Safe Custody for re-use, complete all as specified and directed by Engineer in charge.

Supply and laying XLPE insulated, screened, PVC bedded,galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 22000 volts, grade cross sectional area 95 sqmm 3 core.all as directed. Note:- (a) Laying of cable to be done mannualy only as no approch road are avaiable for use any earth moving equipment. testing before laying and after Laying complete all as specified and directed by Engineer in charge.

Excavation in Trenches not exc. 1.50 Metre wide and not exc. 1.50 Metre in depth for laying of UG Cable/Pole/Stays, etc., getting out including forming bottom surface to required level and gradient in Soft/ Loose Soil and getting out, complete all as specified and directed by Engineer in charge.

Removal of surplus spoils soil to a distance not exc. 50.00 Metre and depositing where directed at a level not exc. 1.50 Metre above the starting point complete all as specified and directed by Engineer in charge.

Returning filling in soft/loose soil including spreading, leveling watering and well ramming in layers n exc. 25 Cm thick in layers complete all as specified and directed by Engineer in charge.

M&L Sand Cushioning (dry) in Trenches/Ducts for protection of UG Cables (below, above and around the UG Cable laid) of 23 Cm Spread thickness (8 Cm in depth before laying the Cable and 15 Cm in depth after laying the Cable) and consolidated (punned) upto 180mm thickness, complete all as specified and directed by Engineer in charge. NOTE : For the purpose of Payment, punned thickness of Sand Cushioning only will be Measured.

Supply and laying in trenches PCC Cable Cover Factory made Class LV, type 1, flat of size 250x150x40mm for cable protection, complete all as specified and directed by Engineer in charge.

Supply & laying/lowering in water sump ‘Steel Water Tubing 80mm bore (dia), Galvanised, ‘Heavy Duty’ with all Fittings, laid in Trenches or any other Situation, connecting with pump 15 HP capacity complete all as specified and directed by Engineer in charge.

S&F flat copper cable insulated and PVC sheathed waterproof Confirming to IS-694, 1100 Volt grade suitable for submersible Pump set, of Size 10 Sqmm x 3 Core complete all as specified and directed by Engineer in charge.

Supply and fix cable jointing kit for HT 22 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm complete all as specified and directed by Engr-in-Charge..

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