GE/SMB/T-56/2021-22 REPAIR REPLACEMENT IMPROVEMENT OF VOLTAGE STABILIZER LT PANELS AND JUNCTION BOX AT MIL STN SAMBA UNDER GE SAMBA

Amount

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth for laying of cables or other items and getting out soil in any type soil complete all as specifed.

Returning filling in including spreading levelling watering and well ramming in layers not exceeding 25 cm complete all as specified.

Removing excavated material not exceeding 50 mtr and depositing where directed in a level not exceeding 1.5 mtr above the starting point of any type of soil complete all as specified

Sand cushioning to under ground cable provided with a layer of sand 8 cm depth before laying of cable and 15 cm depth after laying and stretching the cable all as specified. Note: Punned thickness of sand shall be measured & paid.

Well burnt sub class 'B' bricks of nominal size 230X115X75 mm abutting each other for mechanical protection of cable with width equal to lenght of brick complete all as specified.

XLPE insulated screened ,PVC bedded ,galvanised steel strip or wire armoured electric power cable (heavy duty ) 1100 volts grade with standard aluminium conductor 16 sqmm 4 core complete all as spd and directed.(Note –necessary excavation ,removal ,returning filling ,sand cushioning ,brick shall be measured and paid under respective item of BOQ.).

GI tubing light grade of size 50 mm bore for cable protection complete all as specified.

Disconnecting main electrical connection of voltage stabilizer of any make, capacity from 50 KVA to 75 KVA and opening of stabilizer cover for checking/examining/replacing as required including connecting the same electrical connection after necessary repair complete all as directed. Note: Spare parts shall be measured & paid separately.

Transportation of voltage stabilizer of any make of capacity 50 KVA to 75 KVA to civil workshop and returning back after necessary repairing work including loading & un-loading with & including necessary T&P complete all as specified and directed.

Draining out the transformer oil complete quantity of voltage stabilizer of any make of capacity 50 KVA to 75 KVA and to keep the same in safe containers dismantling all the parts of voltage stabilizer with the help of hand operated crane or other suitable mean, re-fixing the all parts and assembling with the help of hand operated crane or by other suitable means, re-filing the existing drain out transformer oil and testing the voltage stabilizer complete all as specified. Note:- Spare parts shall be measured & paid separately.

Re-winding of stabilizer coils of any type/make with superior quality super enamelled copper winding wire of suitable gauge and number of turns alongwith allied materials such as cork sheet, fibre glass insulation/paper isulation cotton, empire tape and woodeen blocks, bolts, nuts and washers, soldering and other packing materials complete all as directed by Engr-in-Charge.

Repairing the voltage stabilizer of any make of capacity 50 KVA to 75 KVA by supply and fixing in replacement of following items:- (a) Electronic printed circuit board of solid state including ICs, regulators, condensors, triac, transistors complete.Make : As per OEM

12(a) Circuit control/trigger transformer.Make : As per OEM

12(b ) Main terminal block. Make : As per OEM

12(c) Dimmer. Make : As per OEM

12(d) Choke coils.Make : As per OEM

12(e) Carbon brush.Make : As per OEM

12(f) Spacer for Dimmer coils.Make : As per OEM

12(g) Dimmer coils terminals.Make : As per OEM

12(h) Input switch to stop over running of dimmer start motor.Make : As per OEM

12(i) Servo motor with 10 Kg.cm torque.Make : As per OEM

12(j) Driving gear.Make : As per OEM

12(k) Bearing for dimmer coils.Make : As per OEM

12(l) Terminal connections brass rod with bush.Make : As per OEM

12(m) Protection alarm circuit. Make : As per OEM

Supply, installation, testing & commisioning in replacement of factory made LT feeder pillar box outdoor type, floor mounted, double door, cubical compartmentalized type suitable for 415 volts, 3 phase, 4 wire, 50 Hz supply system all as specified and directed having busbar chamber with insulated aluminium busbar 750 Amps rating (100% neutral) installed on porcelain insulators. The panel shall be dust and vermin proof made of 3.15 mm CRCA sheet duly powder coated and 40 x 40 x 6 mm angle iron frame work duly powder coated finish, panel mounted on angle iron 40 x 40 x 6 mm frame having 4 Nos legs 45 cm, 15 cm grouted in PCC of ratio 1:3:6 and 30 cm clear space from ground level. Front & back opening type with aprons for cable entry with locking arrangement including internal wiring with PVC insulated multistranded copper conductor cables of suitable size, thimbling and cable entry boxes with cable glands.The Panel builder should submit Test Certificate along with GA drawing before executing the job. The scope of the work also includes supply and fixing the following:-

INCOMING:- (a) MCCB 500 Amps,thermal adjustable and magentic setting having rupturing capacity 35 KA (Ics=100% Icu), 4 pole, 415 Volts, 50 Hz, along with Extended Ratory handle ,Spreader terminals and phase barrier - 01 No. Make: Legrand/L&T/Schneider. (b ) Voltmeter digital type 0-500 Volts, flush type - 01 No (c) Ammeter digital type 0-500 Amps, flush type with 3 Nos CTs as per load requirement - 01 No. (d) Indicating lamp (LED type) RYB - 01 Set of three OUTGOING:- (a) MCCB 200 Amps, thermal adjustable and magentic setting having rupturing capacity 25 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC, along with Extended Ratory handle ,Spreader terminals and phase barrier - 02 Nos. Make: Legrand/L&T/Schneider. (b) MCCB 160 Amps, thermal adjustable and magentic setting having rupturing capacity 25 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC,along with Extended Ratory handle ,Spreader terminals and phase barrier - 02 Nos. Make: Legrand/L&T/Schneider. (c) MCCB 63 Amps,thermal adjustable and magentic setting having rupturing capacity 16 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC, along with Extended Ratory handle ,Spreader terminals and phase barrier- 01 Nos. Make: Legrand/L&T/Schneider.

Supply, installation, testing & commisioning in replacement of factory made LT feeder pillar box outdoor type, floor mounted, double door, cubical compartmentalized type suitable for 415 volts, 3 phase, 4 wire, 50 Hz supply system all as specified and directed having busbar chamber with insulated aluminium busbar 700 Amps rating (100% neutral) installed on porcelain insulators. The panel shall be dust and vermin proof made of 3.15 mm CRCA sheet duly powder coated and 40 x 40 x 6 mm angle iron frame work duly powder coated finish, panel mounted on angle iron 40 x 40 x 6 mm frame having 4 Nos legs 45 cm, 15 cm grouted in PCC of ratio 1:3:6 and 30 cm clear space from ground level. Front & back opening type with aprons for cable entry with locking arrangement including internal wiring with PVC insulated multistranded copper conductor cables of suitable size, thimbling and cable entry boxes with cable glands.The Panel builder should submit Test Certificate along with GA drawing before executing the job. The scope of the work also includes supply and fixing the following:-

INCOMING:- (a) MCCB 400 Amps,thermal adjustable and magentic setting having rupturing capacity 35 KA (Ics=100% Icu), 4 pole, 415 Volts, 50 Hz, along with Extended Ratory handle ,Spreader terminals and phase barrier - 01 No. Make: Legrand/L&T/Schneider. (b ) Voltmeter digital type 0-500 Volts, flush type - 01 No (c) Ammeter digital type 0-500 Amps, flush type with 3 Nos CTs as per load requirement - 01 No. (d) Indicating lamp (LED type) RYB - 01 Set of three OUTGOING:- (a) MCCB 50 Amps, thermal adjustable and magentic setting having rupturing capacity 16 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC, along with Extended Ratory handle ,Spreader terminals and phase barrier - 12 Nos. Make: Legrand/L&T/Schneider.

Supply, installation, testing & commisioning in replacement of factory made LT feeder pillar box outdoor type, floor mounted, double door, cubical compartmentalized type suitable for 415 volts, 3 phase, 4 wire, 50 Hz supply system all as specified and directed having busbar chamber with insulated aluminium busbar 700 Amps rating (100% neutral) installed on porcelain insulators. The panel shall be dust and vermin proof made of 3.15 mm CRCA sheet duly powder coated and 40 x 40 x 6 mm angle iron frame work duly powder coated finish, panel mounted on angle iron 40 x 40 x 6 mm frame having 4 Nos legs 45 cm, 15 cm grouted in PCC of ratio 1:3:6 and 30 cm clear space from ground level. Front & back opening type with aprons for cable entry with locking arrangement including internal wiring with PVC insulated multistranded copper conductor cables of suitable size, thimbling and cable entry boxes with cable glands.The Panel builder should submit Test Certificate along with GA drawing before executing the job. The scope of the work also includes supply and fixing the following:-

INCOMING:- (a) MCCB 400 Amps,thermal adjustable and magentic setting having rupturing capacity 35 KA (Ics=100% Icu), 4 pole, 415 Volts, 50 Hz, along with Extended Ratory handle ,Spreader terminals and phase barrier - 01 No. Make: Legrand/L&T/Schneider. (b) Voltmeter digital type 0-500 Volts, flush type - 01 No (c) Ammeter digital type 0-500 Amps, flush type with 3 Nos CTs as per load requirement - 01 No. (d) Indicating lamp (LED type) RYB - 01 Set of three OUTGOING:- (a) MCCB 160 Amps, thermal adjustable and magentic setting having rupturing capacity 25 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC,along with Extended Ratory handle ,Spreader terminals and phase barrier - 04 Nos. Make: Legrand/L&T/Schneider.

Supply, installation, testing & commisioning in replacement of factory made LT feeder pillar box outdoor type, floor mounted, double door, cubical compartmentalized type suitable for 415 volts, 3 phase, 4 wire, 50 Hz supply system all as specified and directed having busbar chamber with insulated aluminium busbar 700 Amps rating (100% neutral) installed on porcelain insulators. The panel shall be dust and vermin proof made of 3.15 mm CRCA sheet duly powder coated and 40 x 40 x 6 mm angle iron frame work duly powder coated finish, panel mounted on angle iron 40 x 40 x 6 mm frame having 4 Nos legs 45 cm, 15 cm grouted in PCC of ratio 1:3:6 and 30 cm clear space from ground level. Front & back opening type with aprons for cable entry with locking arrangement including internal wiring with PVC insulated multistranded copper conductor cables of suitable size, thimbling and cable entry boxes with cable glands.The Panel builder should submit Test Certificate along with GA drawing before executing the job. The scope of the work also includes supply and fixing the following:-

INCOMING:- (a) MCCB 400 Amps,thermal adjustable and magentic setting having rupturing capacity 35 KA (Ics=100% Icu), 4 pole, 415 Volts, 50 Hz, along with Extended Ratory handle ,Spreader terminals and phase barrier - 01 No. Make: Legrand/L&T/Schneider. (b ) Voltmeter digital type 0-500 Volts, flush type - 01 No (c) Ammeter digital type 0-500 Amps, flush type with 3 Nos CTs as per load requirement - 01 No. (d) Indicating lamp (LED type) RYB - 01 Set of three OUTGOING:- (a) MCCB 160 Amps, thermal adjustable and magentic setting having rupturing capacity 25 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC,along with Extended Ratory handle ,Spreader terminals and phase barrier - 02 Nos. Make: Legrand/L&T/Schneider. (b) MCCB 200 Amps, thermal adjustable and magentic setting having rupturing capacity 25 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC, along with Extended Ratory handle ,Spreader terminals and phase barrier - 02 Nos. Make: Legrand/L&T/Schneider.

Supply, installation, testing & commisioning in replacement of factory made LT feeder pillar box outdoor type, floor mounted, double door, cubical compartmentalized type suitable for 415 volts, 3 phase, 4 wire, 50 Hz supply system all as specified and directed having busbar chamber with insulated aluminium busbar 700 Amps rating (100% neutral) installed on porcelain insulators. The panel shall be dust and vermin proof made of 3.15 mm CRCA sheet duly powder coated and 40 x 40 x 6 mm angle iron frame work duly powder coated finish, panel mounted on angle iron 40 x 40 x 6 mm frame having 4 Nos legs 45 cm, 15 cm grouted in PCC of ratio 1:3:6 and 30 cm clear space from ground level. Front & back opening type with aprons for cable entry with locking arrangement including internal wiring with PVC insulated multistranded copper conductor cables of suitable size, thimbling and cable entry boxes with cable glands.The Panel builder should submit Test Certificate along with GA drawing before executing the job. The scope of the work also includes supply and fixing the following:-

INCOMING:- (a) MCCB 400 Amps,thermal adjustable and magentic setting having rupturing capacity 35 KA (Ics=100% Icu), 4 pole, 415 Volts, 50 Hz, along with Extended Ratory handle ,Spreader terminals and phase barrier - 01 No. Make: Legrand/L&T/Schneider. (b ) Voltmeter digital type 0-500 Volts, flush type - 01 No (c) Ammeter digital type 0-500 Amps, flush type with 3 Nos CTs as per load requirement - 01 No. (d) Indicating lamp (LED type) RYB - 01 Set of three OUTGOING:- (a) MCCB 160 Amps, thermal adjustable and magentic setting having rupturing capacity 25 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC,along with Extended Ratory handle ,Spreader terminals and phase barrier - 02 Nos. Make: Legrand/L&T/Schneider. (b) MCCB 315 Amps, thermal adjustable and magentic setting having rupturing capacity 25 KA (Ics=100% Icu), 3 pole, 415 Volts, 50 Hz AC, along with Extended Ratory handle ,Spreader terminals and phase barrier - 01 Nos. Make: Legrand/L&T/Schneider.

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 /panel/ test point at the other including 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, funnel, wire mesh including necessary excavation and earth work in any type of soil, returning filling in and removal of surplus soil complete all as specified.

Note:- The contract sum arrived after deduction of amount of Sch of credit as listed in tender Documents.

M/S GUPTA TRADING CO

Bharat Builder