SPECIAL REPAIR TO REPLACEMENT OF 2/4 POLE STRUCTURE TO WK ALL CONNECTED FEEDER TO RIDGE ROAD POWER HOUSE UNDER GE (WEST) JABALPUR

Taking down old UNSV earthing any type any size . Note: Excavation & earth work where required shall be measured & paid separately under relevant items.

M&L in replacement for earthing complete with galvanised steel earth plate electrode 600x600x6.0mm thick directly burried in the ground (earth pit not less than 2.25M deep below ground level) with top edge of earth plate not less than 1.50M deep below normal ground level, connected to galvanised iron strip 32x6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, 40mm bore GI pipe light grade including necessary fittings for protection of earthing strip, watering pipe 20mm bore GI medium grade, concrete chamber in PCC (1:4:8) type D-2 using 40 mm grade aggregate, coping shall be in PCC (1:3:6) type C-1 using 20 mm grade aggregate and internal surfaces of concrete chamber shall be given 12mm thick plaster in CM (1:4), funnel with wire gauge of 22 gauge 8 mesh per linear including 50mm thick cover of RCC (1:2:4) type B-1 using 20mm grade stone aggregate reinforced with 8mm MS TMT bar @ 75 mm C/C both ways, char coal dust and common salt all as shown in electrical plate No. 3 of SSR Part-I (2009) including all necessary excavation & earth work and removal of surplus soil to a distance n. exc 50M and providing connection points with MS/ GI bolts & washers as required and connection from earth test point to earth electrode with same GI earth strip alongwith protection pipe and testing on completion complete all as specified and directed. Note:- GI strip and protection pipe from earth electrode to test point max upto 7.50M shall be deemed to be included in the unit rates as quoted by the contractor.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm and testing on completion complete all as directed.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm and testing on completion complete all as directed.

Supply and spreading the stone aggregate of 40 mm size spreading in the substation/ as where directed at site

Material and labour for providing cement concrete 1:2:4 type B-1 (using 20 mm graded crushed stone aggregate) for coping of poles including necessary form work and finished the surface complete all as specified and directed.

(A) HT COMPARTMENT: VACUUM CIRCUIT BREAKER - Each module (Vacuum circuit breaker) enclosed in SF6 -04 Nos. (a) The function unit shall consist of a three position switch. The three position switch shall fulfil the operation of the disconnector function and the earthing function. The circuit breaker unit T2 shall be equipped with an over current time release for the protection of distribution transformer. (b) Vacuum circuit breaker shall be of 12kV, 630 Amps, 21 kA for one sec enclosed in SF6. (c) Spring assisted closing with stored energy tripping mechanism for T2-motorised operation with integrated earthing switch. (d ) Having auxiliary contacts on load break switch 1 NO+2 NC & auxiliary contacts on earth switch 1 NO+1 NC - 01 No. (e) Self powered electronic numerical protection relay providing 3 over current & 1 earth fault protection - 01 No. (f) Tape wounded protection CT shall be 100/5, 10P5, 2.5VA - 03 Nos. (g) Tape wounded metering CT shall be 100/5, Class-1.0, 2.5 VA - 03 Nos. (h) Shunt trip Coil - 24 V DC - 01 No. (j) Capacitive voltage indication fixed type (LED display) - 01 No. (k) On/ Off/ TRIP mechanical indication on the front mimic of the panel-01 Set. (l) Cable box for termination of XLPE cable of size 3 core 95 sqmm to 120 sqmm aluminium conductor- 01 No.

(m) Cable cover standard - 01 No. (n) Emergency trip push button- 01 No. (o) Set of 12 kV cable termination boots - 1 Set (p) Ammeter of suitable capacity/ class -01 No. (q) Rated frequency - 50/60 Hz (r ) Rated Power frequency withstand voltage directly earthed -28 kV (s) Level of insulation for the SF6, rated lightening impulse withstand voltage - 75 kV (t) Level of insulation for the SF6, rated power frequency withstand voltage - 28 kV (u) Level of insulation of the sectionalized distance for the cable test energized busbar, maximum AC feeder test voltage - 18 kV (v) Rated current busbar C-R-RE functions - 630 Amps (w) Rated current busbar SB functions - 630 Amps (x) Rated current outgoing feeder- 630 Amps (y) Rated short time current, main electrical circuit for 1 Sec - 21kA (z) Rated short time current, earthing circuit for 1 Sec - 21kA (aa) Rated network load and closed loop breaking current - 630 Amps (ab) Rated no load cable breaking current -160 Amps (ac) Rated breaking current under earth fault conditions - 630 Amps (ad) Rated no-load cable breaking current under earth fault conditions - 277 Amps

(B) HT COMPARTMENT: LOAD BREAK SWITCH- C, 12 kV, 21 kA, 630 Amps - EACH MODULE (LBS) enclosed in SF6 -02 No. (a) The switching unit shall be so designed as a three position switch. The three position switch combines the functions of switch disconnector and earthing switch. The switch disconnector as well as the earthing switch shall be equipped with a separate drive unit. (b) Cable switch 11 kV, 630 A, 21 kA for 1 sec - 01 No. (c ) Spring assisted mechanisim for C-manual operation with integrated earthing switch - 01 No. (d) Cable bushing 630 Amps, Standard C-bushings - 01 No. (e) Aux switch for load break (ON & OFF) - 01 No. (f) Cable Cover standard - 01 No. (g) Capacitive voltage indication fixed type (LED display) - 01 No. (h) On/ Off/ EARTH indication on the front mimic of the panel - 01 Set. (j) Cable box for termination of XLPE cable of size 3 core 95 sqmm to 120 sqmm aluminium conductor- 01 No. (k) Operation counter - 01 No. (l) Cable boot suitable for 11 kV - 01 Set, cable entry shall be provided from front bottom (m) Rated frequency - 50/60 Hz (n ) Rated power frequency withstand voltage directly earthed -28 kV (o) Level of insulation for the SF6, rated lightening impulse withstand voltage - 75 kV (p) Level of insulation for the SF6, rated power frequency withstand voltage - 28 kV

(q) Level of insulation of the sectionalized distance for the cable test energized busbar, maximum AC feeder test voltage - 18 kV (r) Rated current busbar C-R-RE functions - 630 Amps (s) Rated current busbar SB functions - 630 Amps (t) Rated current outgoing feeder- 630 Amps (u) Rated short time current, main electrical circuit for 1 sec - 21kA (v) Rated short time current, earthing circuit for 1 sec - 21kA (w) Rated network load and closed loop breaking current - 630 Amps (x) Rated no load cable breaking current - 160 Amps (y) Rated breaking current current under earth fault conditions - 630 Amps (z) Rated no-load cable breaking current under earth fault conditions - 277 Amps (C) BUS METERING PANEL (a) 03 Single phase PT 11 kV/ RT3/ 110V/RT3, 100 VA, class -1.0 (b) 01 Space heater (c ) RYB indication - one set

(d) 01 No. Voltmeter (e) Microprocessor based three phase electronic tamper proof HT energy meter with optical communication port, accuracy class 0.5 rating 3 X 110 V, 1/5 A conforming to IS : 13779. (f) 24 V DC battery and battery charger - 01 Set (D) Additional equipment to be mounted on each RMUs (a) Manometer - 01 No. (b) Operating Handle - 01 No. (c) Cable clamping provision (standard) - 01 Set (d) Cable testing Plug and Stud - 01 set (e) O&M Manual (f) I&C Manual

(E) The RMU shall also capable for the following : The RMU shall be gas insulated metal enclosed. The high grade steel gas tight tank shall inculde switch devices or circuit breaker, internal copper bus bar, bushings for cable connections, pressure relief device, copper earth bus bar. The drive cabinet shall contain a user friendly control panel with a mimic diagram, In this diagram the drive socket and position indicators for all switch devices are clearly arranged. There is an instrument compartment on top of the drive cabinet and it shall contain short circuit indicators for cable feeders, capacitive voltage detection system, standard Manometer. The auxiliary equipment like trip coils or aux contacts shall be wired to central termination blocks in each feeder . The switching devices shall have separate drive system, which are operated with non interchangeable plug-in levers. A complete interrogator interlocking system reliably prevents control errors and ensures high operation convenience. The RMU shall comply with stndarads IEC 62271-200, IEC 62271-200, IEC 62271-100, pressure of SF 6 gas shall be 1.3 bars at 20 deg C.

(A) HT COMPARTMENT: VACUUM CIRCUIT BREAKER - Each module (Vacuum circuit breaker) enclosed in SF6 -02 Nos. (a) The function unit shall consist of a three position switch. The three position switch shall fulfil the operation of the disconnector function and the earthing function. The circuit breaker unit T2 shall be equipped with an over current time release for the protection of distribution transformer. (b) Vacuum circuit breaker shall be of 12kV, 630 Amps, 21 kA for one sec enclosed in SF6. (c) Spring assisted closing with stored energy tripping mechanism for T2-motorised operation with integrated earthing switch. (d ) Having auxiliary contacts on load break switch 1 NO+2 NC & auxiliary contacts on earth switch 1 NO+1 NC - 01 No. (e) Self powered electronic numerical protection relay providing 3 over current & 1 earth fault protection - 01 No. (f) Tape wounded protection CT shall be 100/5, 10P5, 2.5VA - 03 Nos. (g) Tape wounded metering CT shall be 100/5, Class-1.0, 2.5 VA - 03 Nos. (h) Shunt trip Coil - 24 V DC - 01 No. (j) Capacitive voltage indication fixed type (LED display) - 01 No. (k) On/ Off/ TRIP mechanical indication on the front mimic of the panel-01 Set. (l) Cable box for termination of XLPE cable of size 3 core 95 sqmm to 120 sqmm aluminium conductor- 01 No.

(m) Cable cover standard - 01 No. (n) Emergency trip push button- 01 No. (o) Set of 12 kV cable termination boots - 1 Set (p) Ammeter of suitable capacity/ class -01 No. (q) Rated frequency - 50/60 Hz (r ) Rated Power frequency withstand voltage directly earthed -28 kV (s) Level of insulation for the SF6, rated lightening impulse withstand voltage - 75 kV (t) Level of insulation for the SF6, rated power frequency withstand voltage - 28 kV (u) Level of insulation of the sectionalized distance for the cable test energized busbar, maximum AC feeder test voltage - 18 kV (v) Rated current busbar C-R-RE functions - 630 Amps (w) Rated current busbar SB functions - 630 Amps (x) Rated current outgoing feeder- 630 Amps (y) Rated short time current, main electrical circuit for 1 Sec - 21kA (z) Rated short time current, earthing circuit for 1 Sec - 21kA (aa) Rated network load and closed loop breaking current - 630 Amps (ab) Rated no load cable breaking current -160 Amps (ac) Rated breaking current under earth fault conditions - 630 Amps (ad) Rated no-load cable breaking current under earth fault conditions - 277 Amps

(B) HT COMPARTMENT: LOAD BREAK SWITCH- C, 12 kV, 21 kA, 630 Amps - EACH MODULE (LBS) enclosed in SF6 -01 No. (a) The switching unit shall be so designed as a three position switch. The three position switch combines the functions of switch disconnector and earthing switch. The switch disconnector as well as the earthing switch shall be equipped with a separate drive unit. (b) Cable switch 11 kV, 630 A, 21 kA for 1 sec - 01 No. (c ) Spring assisted mechanisim for C-manual operation with integrated earthing switch - 01 No. (d) Cable bushing 630 Amps, Standard C-bushings - 01 No. (e) Aux switch for load break (ON & OFF) - 01 No. (f) Cable Cover standard - 01 No. (g) Capacitive voltage indication fixed type (LED display) - 01 No. (h) On/ Off/ EARTH indication on the front mimic of the panel - 01 Set. (j) Cable box for termination of XLPE cable of size 3 core 95 sqmm to 120 sqmm aluminium conductor- 01 No. (k) Operation counter - 01 No. (l) Cable boot suitable for 11 kV - 01 Set, cable entry shall be provided from front bottom (m) Rated frequency - 50/60 Hz (n ) Rated power frequency withstand voltage directly earthed -28 kV (o) Level of insulation for the SF6, rated lightening impulse withstand voltage - 75 kV (p) Level of insulation for the SF6, rated power frequency withstand voltage - 28 kV

(q) Level of insulation of the sectionalized distance for the cable test energized busbar, maximum AC feeder test voltage - 18 kV (r) Rated current busbar C-R-RE functions - 630 Amps (s) Rated current busbar SB functions - 630 Amps (t) Rated current outgoing feeder- 630 Amps (u) Rated short time current, main electrical circuit for 1 sec - 21kA (v) Rated short time current, earthing circuit for 1 sec - 21kA (w) Rated network load and closed loop breaking current - 630 Amps (x) Rated no load cable breaking current - 160 Amps (y) Rated breaking current current under earth fault conditions - 630 Amps (z) Rated no-load cable breaking current under earth fault conditions - 277 Amps (C) BUS METERING PANEL (a) 03 Single phase PT 11 kV/ RT3/ 110V/RT3, 100 VA, class -1.0 (b) 01 Space heater (c ) RYB indication - one set

(d) 01 No. Voltmeter (e) Microprocessor based three phase electronic tamper proof HT energy meter with optical communication port, accuracy class 0.5 rating 3 X 110 V, 1/5 A conforming to IS : 13779. (f) 24 V DC battery and battery charger - 01 Set(D) Additional equipment to be mounted on each RMUs (a) Manometer - 01 No. (b) Operating Handle - 01 No. (c) Cable clamping provision (standard) - 01 Set (d) Cable testing Plug and Stud - 01 set (e) O&M Manual (f) I&C Manual

(E) The RMU shall also capable for the following : The RMU shall be gas insulated metal enclosed. The high grade steel gas tight tank shall inculde switch devices or circuit breaker, internal copper bus bar, bushings for cable connections, pressure relief device, copper earth bus bar. The drive cabinet shall contain a user friendly control panel with a mimic diagram, In this diagram the drive socket and position indicators for all switch devices are clearly arranged. There is an instrument compartment on top of the drive cabinet and it shall contain short circuit indicators for cable feeders, capacitive voltage detection system, standard Manometer. The auxiliary equipment like trip coils or aux contacts shall be wired to central termination blocks in each feeder . The switching devices shall have separate drive system, which are operated with non interchangeable plug-in levers. A complete interrogator interlocking system reliably prevents control errors and ensures high operation convenience. The RMU shall comply with stndarads IEC 62271-200, IEC 62271-200, IEC 62271-100, pressure of SF 6 gas shall be 1.3 bars at 20 deg C.

Excavation in trenches, not exceeding 1.5m wide and not exceeding 1.5m in depth for foundation, for laying of pipe, cable etc or n. exc.10 Sqm on plan and n. exc. 1.5m in depth for shafts, cesspits, manholes, pier holes, etc and getting out in hard/dense soil complete all as specified and directed.

Returning, filling in excavated approved soil, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm each complete all as specified and directed.

Removing excavated soil not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point including spreading complete all as specified and directed.

Supply and spreading clean and dry fine sand free from sharp materials (unwashed) laying in trenches around the cable for cushioning in trenches, laid to a uniform thickness of 23cm (15cm under the cable & 8cm over the cable) and gently punned down to 18cm thickness complete all as specified and as directed. Note: Only punned sand shall be measured and paid.

Supply and laying un-reinforced precast concrete cable covers, Class HV type 2 with flat size 450 mm x 180 mm x 40 mm, complete all as specified and as directed.

M&L for GI Tubes in repair of 80mm, medium grade ,galvanised , with clamp of 25x3 flat iron welded to pipe fixed to wall/pole/ceiling or laid in floors or under road etc complete all as specified and as directed.

Drilling (Horizontally) existing road ( Maximum 10 mtr wide) suitable for passing GI tubing upto 80/100mm complete all as specified and directed.

Supply and laying or fixing or passing in trenches/ on pole/ through pipes, 11000 volts grade(Earthed) XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor of cross section area 120 sqmm, 3 core after taking out the old unserviceable XLPE/ PILCA cable and testing on completion complete all as directed. (Note : Excavation, earthwork, sand cushioning and cable protection will be measured and paid for separately)

Taking down old u/s HT pole any type any size

Taking down old u/s AB Switches any type any size

Taking down old u/s insulators any type any size

Taking down old u/s lightning arrestors any type any size

Taking down old u/s cross arms any size

Taking down old u/s ACSR conductor any type

Taking down of old unsv cable of any type and any size for repair or replacement incl pipes & bricks etc complete all as specified and directed by engr-in-charge. Note: Excavation & earth work where required shall be measured & paid separately under relevant items.

M&L for shifitng of RMU 11 KV capacity ranging from 3 Way or 4 way any size , disconnecting all connections from the RMU, shifting to new locations and reshifting disconnected RMU to location as directed and reconnecting all connections all as per required and directed by Engr In charge.

Schedule of credit amount of Rs. 1,24,700.00 to be deducted during AOC

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