CA NO GE/ND-47/2021 22 REPAIR/ MAINTENANCE OF SUBMAIN WIRING, METER PANEL AT CERTAIN BLDGS OF SP MARG MD OFFRS ACCN UNDER GE NEW DELHI

Amount

Taking down submain wire of 6/10 sqmm Aluminium/ copper to store for keeping in safe custody or for taking credit (credit for above items should be made as per conditions separately) and making good disturbed surfaces of walls etc. complete all as specified and as directed.

S&F submain wiring alongwith earth wire with 2 run of 6 Sqmm (Main Cable and neutral) and one run of 6 Sqmm as earth wire of FRLS PVC insulated copper conductor, single core cable drawn through and including rigid PVC conduit of 20 mm bore with all fittings, accessories complete all as specified and as directed.

S&F submain wiring alongwith earth wire with 2 run of 10 Sqmm (Main Cable and neutral) and one run of 10 Sqmm as earth wire of FRLS PVC insulated copper conductor, single core cable drawn through and including rigid PVC conduit of 20 mm bore with all fittings, accessories complete all as specified and as directed.

Taking down DB of SPN 8/12 way type, removing materials to store for keeping in safe custody or for taking credit (credit for above items should be made as per conditions separately) and making good disturbed surfaces of walls etc. complete all as specified and as directed.

S&F sheet metal enclosures for DBs when MCB to be used, SPN double door 240 volt, 12 way with 200 amps rated busbar complete all as specified and as directed.

Taking down MCB 6-32/40-63 Amps SP/SPN and 40-63 Amps TPN type, removing materials to store for keeping in safe custody or for taking credit (credit for above items should be made as per conditions separately) and making good disturbed surfaces of walls etc. complete all as specified and as directed.

S&F of MCB SPN 40 to 63 Amp 240 volt 10 kA rupture capacity, series 'C' complete all as specified and as directed.

S&F of MCB SPN 6 to 32 Amp 240 volt 10 kA rupture capacity, series 'C' complete all as specified and as directed.

S&F MCB SP 6 Amp to 32 Amp 240 volts 10 kA rupture capacity, series 'C' complete all as specified and as directed.

Taking down MCCBs, any type, removing materials to store for keeping in safe custody or for taking credit (credit for above items should be made as per conditions separately) and making good disturbed surfaces of walls/panel etc. complete all as specified and as directed.

Supply and fixing MCCB, 4 pole, 415 volt of capacity 125A breaking capacity not less than 25kA, Icu=100% Ics thermal magnetic type adjustable type 80 to 100 % confirming to IEC-60947-II, IS-13947-II, including thimbles, nuts, bolts ,washers, etc. and connections, replacement of thimbles, minor parts like nuts bolts washer etc. complete all as specified and as directed.

Supply and fixing MCCB, 4 pole, 415 volt of capacity 250 Amp, breaking capacity not less than 36 KA , Icu=100% Ics thermal magnetic type adjustable type 80 to 100 % confirming to IEC-60947-II, IS-13947-II , including thimbles, nuts, bolts ,washers, etc. and connections, replacement of thimbles, minor parts like nuts bolts washer etc. complete all as specified and as directed.

S&F in repair indicator light 3 Nos in each set having three colours Red, Blue, Yellow complete all as specified and as directed.

M&L in repair for plate earthing complete with galvanized mild steel plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground vertically (in earth pit not less than 2.25 meter deep below ground level) with the top edge of earth plate at a depth not less than 1.5 meter below normal ground level, the earth electrode surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15 cm on all sides and including GI strip 32x6 mm bolted (with GI nuts, bolts & check nuts) and riveted to earth (Plate) electrode at one end and connected to main switch board test point at the other and watering GI pipe (medium grade) 20 mm bore from bottom of earth pit to top of electrode and 40 mm GI pipe light grade for earth strip protection complete with earth pit in PCC 1:2:4 type B0 using 12 mm graded crushed stone aggregate, RCC cover etc. complete all as specified and as directed.

M&L in replacement for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/ pipe or fixed to poles or any other indicated situation for loop earthing, etc. as required, 32X6 mm galvanised iron strip complete all as specified and as directed.

Disconnecting, dismantling the existing LT panel Meter board of size 1500mmX1800mmX350mm, 415 Volt, 3 phase, 4 wire with busbar 400 Amp capacity from existing foundation after taking proper shutdown and restoration of electric supply to quarters by necessary arrangements as directed and keeping safe custody for re-fixing back including connecting up all connections on and including new PCC foundation, connecting up all dismantled connection and ensure proper electric supply distribution to Users DB after carrying out the following repair works in panel and including provision of necessary PCC work of grade 1:2:4 in meter room to make sure all panels fitted properly complete all as specified and as directed.

Item no. 18.00 contdd... 1. Complete painting with two coats of synthetic enamel paint of approved colour with writing/marking of connection details including Qtr no., danger sign board, working voltage, etc. complete all as specified and as directed. 2. Provisioning of additional Din rail for MCB SPN including MCB SPN 63 amps, 10 kA, 230 V, 'C' curve, 1 Nos. 3. Cutting the rusted out portion of the LT panel board and Welding with new sheets of thickness 2 mm including necessary fabrication at site and necessary painting etc. 4. Replacement of view glass for meter compartment. 5. Reconnecting the submains to the MCBs and MCCBs terminal with the help of copper lugs and thimbles and tightening properly in such a way that no leakage current found during site inspection.

Disconnecting, dismantling the existing LT panel Meter board for LIFT of size 600mmX1400mmX300mm with angle frame 50mmX50mmX6mm ,415 Volt, 3 phase, 4 wire with busbar 400 amp capacity from existing foundation after taking proper shut down and restoration of electric supply to quraters by necessary arrangements as directed and keeping safe custody for re fixing back including connecting up all connections on and including new PCC foundation, connecting up all dismantled connection and ensure proper electric supply distribution to Users DB after carry out the following repair works in panel and including necessary PCC work of grade 1:2:4 in meter room to make sure all panels fitted properly complete all as specified and as directed. 1. Complete painting with two coats of enamel paint of approved colour with writing/make logo of connection details including Bldg no.,danger sign board etc. 2. Welding of rusted out sheets with new sheets of thickness 2 mm. 3. Replacement of view glass for meter compartment.

NEERU ELECTRICALS

RUCHIKA ENGG.WORKS

S. S. CONSTRUCTION CO.

Surjit and Sons