CA NO GE(U)/CHM-63/2024-25 REPAIR AND MAINT OF LT ELECTRIC DISTRIBUTION LINES, OVERHEAD LINES, SWITCH BOARD, ACB, ELECTRICAL CONTROLLING DEVICE, PANEL AND OTHER CONNECTED ITEMS AT CH (WC) CHANDIMANDIR

Amount

M&L as in replacement of Power Cables, Aluminium Stranded Conductor 50 sqmm, 3.5 core, XLPE Insulated, PVC Inner sheathed, Armoured with galvanized wire or galvanized steel strip, overall PVC Sheathed, 1100V Grade as per IS 7098 (Part 1) complete laid in trenches / floors / ducts/ fixed to poles / walls / drawn through pipes etc including provn of lugs, glands, nuts, bolts & washers etc for connecting in LT feeder pillar box / transformer bushings/LT OH Line and testing on completion including taking down old unserviceable cable complete all as specified and directed by Engineer-in-Charge.

M&L as in replacement of Power Cables, Aluminium Stranded Conductor 70 sqmm, 3.5 core, XLPE Insulated, PVC Inner sheathed, Armoured with galvanized wire or galvanized steel strip, overall PVC Sheathed, 1100V Grade as per IS 7098 (Part 1) complete laid in trenches / floors / ducts/ fixed to poles / walls / drawn through pipes etc including provn of lugs, glands, nuts, bolts & washers etc for connecting in LT feeder pillar box / transformer bushings/LT OH Line and testing on completion including taking down old unserviceable cable complete all as specified and directed by Engineer-in-Charge.

M&L as in replacement of Power Cables, Aluminium Stranded Conductor 95 sqmm, 3.5 core, XLPE Insulated, PVC Inner sheathed, Armoured with galvanized wire or galvanized steel strip, overall PVC Sheathed, 1100V Grade as per IS 7098 (Part 1) complete laid in trenches / floors / ducts/ fixed to poles / walls / drawn through pipes etc including provn of lugs, glands, nuts, bolts & washers etc for connecting in LT feeder pillar box / transformer bushings/LT OH Line and testing on completion including taking down old unserviceable cable complete all as specified and directed by Engineer-in-Charge.

M&L as in replacement of Power Cables, Aluminium Stranded Conductor 120 sqmm, 3.5 core, XLPE Insulated, PVC Inner sheathed, Armoured with galvanized wire or galvanized steel strip, overall PVC Sheathed, 1100V Grade as per IS 7098 (Part 1) complete laid in trenches / floors / ducts/ fixed to poles / walls / drawn through pipes etc including provn of lugs, glands, nuts, bolts & washers etc for connecting in LT feeder pillar box / transformer bushings/LT OH Line and testing on completion including taking down old unserviceable cable complete all as specified and directed by Engineer-in-Charge.

M&L as in replacement of Power Cables, Aluminium Stranded Conductor 150 sqmm, 3.5 core, XLPE Insulated, PVC Inner sheathed, Armoured with galvanized wire or galvanized steel strip, overall PVC Sheathed, 1100V Grade as per IS 7098 (Part 1) complete laid in trenches / floors / ducts/ fixed to poles / walls / drawn through pipes etc including provn of lugs, glands, nuts, bolts & washers etc for connecting in LT feeder pillar box / transformer bushings/LT OH Line and testing on completion including taking down old unserviceable cable complete all as specified and directed by Engineer-in-Charge.

Excavation in trenches for foundations, laying / taking out of cables, erecting of poles etc, in any type of soil, not exceeding 1.5 mtr in depth and not exceeding 1.5 mtr in width and getting out, complete all as specified and as directed.

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

Removing excavated soils to a distance not exceeding 50 metres and depositing where directed at a level not exceeding 1.50 metre above the starting point complete all as specified and as directed.

M&L sand cushioning for underground cable 8cm below and 15cm above the cable with clean dry river sand in trenches including spreading, levelling etc. complete all as specified and directed by Engr-in-Charge. Note:- Punned thickness only will be measured for the purpose of payment.

Supply and laying reinforced precast concrete cable cover class LV type-1 flat, size 250mmx150mmx40mm as protection to LT cable complete all as specified and as directed.

Supply and laying as in replacement 80 mm bore tube "light grade" galvanised iron pipe laid in trenches or fixed along poles with mild steel clamps or protection to GI earth strip/cable, complete all as specified and directed by Engr-in- Charge.

Supply and laying as in replacement 50 mm bore tube "light grade" galvanised iron pipe laid in trenches or fixed along poles with mild steel clamps or protection to GI earth strip/cable, complete all as specified and directed by Engr-in- Charge.

Shutdown the power supply, disconnecting all incoming & outgoing cables carefully from outdoor/indoor type LT panel board, removing the burnt wiring, cleaning the bus bars, insulators and MCCBs with CTC, meggering the insulation value and replacing the bus bar supporting insulators wherever required to achieve required insulation resistance value, tightening all fasteners (renew if required), reconnecting back the incoming and outgoing cables with suitable cable Lugs, glands and wrapping the insulation tape on all bare conductors, supply and fixing EPDM rubber gasket for all doors for dust & vermin proof etc and testing on completion for proper functioning complete all as specified and directed by Engineer-in-Charge. Note: (i) Replacement of unserviceable MCCBs shall be measured and paid separately. (ii) Replacement of broken/corroded metal sheets/ angle iron parts of panel boards shall be measured and paid separately.

Repair, Servicing and maintenance of ACB of any make 630 Amps to 3200 amps capacity installed at MES power house and comd hosp area including:- (i) Cleaning and assembling of front cover , push button , locking latches. (ii) Cleaning of arc chute and terminal shield. (iii) Cleaning and assembling of chassis. (iv) Cleaning and tightening of every point of auxiliary and control unit connector block. (v) Cleaning, greasing and assembling of hand pull-out system, racking Mechanism of chassis and function position indicators. (vi) Cleaning, checking and assembling of arc chute. (vii) Physical inspection of main contact. (viii) Cleaning, checking/testing and assembling of tapping coil/ closing coil. (ix) Cleaning and greasing of mechanical charging system. (x) Cleaning, greasing and installation of jaw contacts. (xi) Final testing manually of the Air circuit breaker. NOTE: Spare parts if replaced will be measured and paid separately.

Supply only draw out mould base (cradle side )

Supply only arcing contacts

Supply only Main isolating Contacts (jaw Contacts)

Supply only Cradle terminal for draw out horizontal

Supply only Mechanical interlock device

Supply only AUX ready to close charged spring

Supply only under voltage release 220-250 volts

Supply only closing coil 220-250 volts

Supply and fix as in replacement of aluminium strip of size 25x3.15 mm for earthing complete all as specified and directed by Engr-in-Charge.

Supply and fix as in replacement of Air termination, single pointed aluminium rod 12 mm dia and 300 mm long Including PCC copping if required complete all as specified and directed by Engr-in-Charge.

Supply and fix as in replacement of Test point terminal block made of gun metal or Phosphorous bronze 75x75x25 mm drilled including screwed 04 Nos 8 mm dia 25 mm long hexagonal head brass screws including box of size 90x90x90mm made of 1.6 mm CRCA sheet painted with two coats of synthetic enamel paint over a coat of red oxide primer and screwed to wall for protection of test point complete incl covered with 3 mm thick laminated sheet complete all as specified and directed.

Supply and fix as in replacement of GI strip 32 x 6 mm for earthing complete all as specified and directed by Engr-in-Charge.

M&L for earthing complete with galvanized iron earth plate electrode 600mm x 600mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 meters deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level connecting to GI strip 32x6 mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel and earth wire protected by 50mm dia GI pipe medium grade and connected to pole structure/ panel board/earthing test point all as shown in electrical plate No. 3 of SSR Part-I(2009) and testing on completion complete all as specified and directed. Note :- The unit rate quoted shall also include for excavation, earth work in any type of soil, plain cement concrete 1:3:6 mix, Type C1 pit, 40mm thick RCC 1:2:4 mix type B1 cover reinforced with 8mm dia TMT bras @ 150mm C/C both ways, GI funnel with watering pipe, wire mesh, protection pipe, earth strip up to 7.50m long complete in addition to item No. 1(a) to (e) of preamble (Notes) under sub heading earthing, specified in SSR Part II.

M&L for Finding of fault to 1100 Volts LT UG cable with electronic fault locating machine comprising of surge generator pulse, ECHO fault locator with high frequency , distance calculator etc including and additonal excavation in normal/ alluvial strata required for exposing the cable fault, removal of deterioted portion of cable and keeping the same ready for jointing work for cable of any size. The fault locating equipments will be brought to site within the hours of instruction form Engr-in-Charge as specified. Note - (a) Cable jointing kit and XLPE cable of required length, if any shall be measured and paid separaetly under respective items. (b) Cost of necessary T&P shall be deemed to be included in the quoted rates. (c) Report for the fault obtained shall be kept in record duly giving location and other related details and signed by rep of company and Engineer-in-charge.

M & L for Preparation of old steel surfaces of outdoor/indoor type LT panel boards of any size and painting with synthetic enamel paint of approved colour over a coat of red oxide primer (both internally & externally) and fixing 01 Nos steel danger plates on panel board complete all as specified and directed by Engineer-in-Charge.

Supply and fix Heat Shrink jointing kit for 1100 volts grade cable for straight through joint complete with jointing material and accessories suitable for 3.5 core XLPE cable of size 50 to 95 Sqmm complete all as specified.

Supply and fix Heat Shrink jointing kit for 1100 volts grade cable for straight through joint complete with jointing material and accessories suitable for 3.5 core XLPE cable of size 120 to 185 Sqmm complete all as specified.

Supply and fix Heat Shrink jointing kit for 1100 volts grade cable for straight through joint complete with jointing material and accessories suitable for 3.5 core XLPE cable of size 240 to 400 Sqmm complete all as specified.

Supply and fix as in replacement of MCCB 400 A, 4 pole, 36 KA (Ics =100% Icu) with adjustable thermal & fixed magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables with suitable connections with suitable size of glands etc complete including testing & commissioning all as specified and as directed by the Engineer-in-Charge.

Supply and fix as in replacement of MCCB 250 A, 4 pole, 36 KA (Ics =100% Icu) with adjustable thermal & fixed magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables with suitable connections with suitable size of glands etc complete including testing & commissioning all as specified and as directed by the Engineer-in-Charge.

Supply and fix as in replacement of MCCB 200 A, 4 pole, 36 KA (Ics =100% Icu) with adjustable thermal & fixed magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables with suitable connections with suitable size of glands etc complete including testing & commissioning all as specified and as directed by the Engineer-in-Charge.

Supply and fix as in replacement of MCCB 125 A, 4 pole, 25 KA (Ics =100% Icu) with adjustable thermal & fixed magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables with suitable connections with suitable size of glands etc complete including testing & commissioning all as specified and as directed by the Engineer-in-Charge.

Supply and fix as in replacement of MCCB 100 A, 4 pole, 25 KA (Ics =100% Icu) with adjustable thermal & fixed magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables with suitable connections with suitable size of glands etc complete including testing & commissioning all as specified and as directed by the Engineer-in-Charge.

Supply and fix as in replacement of change over switch panel mounted, open execution front operated, four pole, 630 Amps complete inclusive all incoming and outgoing electric connection and fix new one panel mounted, change over switch open execution front operated, 4 Pole, 630 Amps, 415 Volts on same position complete inclusive all nut, bolt, strip any making hole & cutting etc. all as specified and directed by Engr-in-Charge.

Supply and fix as in replacement of change over switch panel mounted, open execution front operated, four pole, 250 Amps complete inclusive all incoming and outgoing electric connection and fix new one panel mounted, change over switch open execution front operated, 4 Pole, 200 Amps, 415 Volts on same position complete inclusive all nut, bolt, strip any making hole & cutting etc. all as specified and directed by Engr-in-Charge.

Supply and fix as in replacement of change over switch panel mounted, open execution front operated, four pole, 100 Amps complete inclusive all incoming and outgoing electric connection and fix new one panel mounted, change over switch open execution front operated, 4 Pole, 125 Amps, 415 Volts on same position complete inclusive all nut, bolt, strip any making hole & cutting etc. all as specified and directed by Engr-in-Charge.

Tacking out defective old Automatic transfer switch of capacity 160 Amps, 4 Pole, 415 Volt, frequency 50 HZ, Closing Current 3.0A/230V AC, Tripping Current 0.5A/230V AC from the Panel Board at command hospital complete inclusive all incoming and outgoing cables and supply, installation, testing of new ATS 4 Pole, 415 V, capacity 160 Amps complete inclusive all incoming and out going cable connection and necessary fixing in existing panel etc,all as specified and directed by Engr-in-Charge. Note: (i) Any modifications needed for fixing the ATS in the panel is deemed to be included in the rates quoted and no extra payment will be done on this account.

Supply and fix as in replacement of Automatic transfer switch of capacity 100 Amps , 4 Pole , 415 Volt, frequency 50 HZ, Closing Current 3.0A/230V AC, Tripping Current 0.5A/230V AC from the Panel Board at Command hospital complete inclusive all incoming and outgoing cables and supply, installation, testing of new ATS 4 Pole, 415 V, capacity 160 Amps complete inclusive all incoming and out going cable connection and necessary fixing in existing panel etc,all as specified and directed by Engr-in-Charge. Note: (i) Any modifications needed for fixing the ATS in the panel is deemed to be included in the rates quoted and no extra payment will be done on this account.

Labour for taking out old deteriorated/ burnt out exhaust fan of size 450 mm sweep from wall after disconnecting all electric connections nut, bolts, etc. and refixing after repair at site duly testing as per satisfaction of Enginner-in-Charge. Note : All spare parts of exhaust fan such as exhaust fan motor, exhaust fan blade & outer frame required to make fan serviceable will be measured and paid separately in Sch A items.

Supply only Exhaust fan motor, single phase, 230 volts, 450mm sweep, 1400 RPM..

Supply only exhaust fan blade ( metal) suitable for 450mm sweep exhaust fan, 4 blade.

Supply only exhaust fan outer frame (metal) suitable for 450mm sweep.

Supply and fixing as in replacement 450 mm sweep exhaust fan louvers with all necessary fixing arrangements complete all as specified and directed by Engr-in-Charge.

Repair, servicing & calibration of APFC panel of capacity up to 650 KVAR and replace defective parts such as lamp indicator, Capacitor, contactor, MCBs etc and testing for entire satisfaction of Engr-in-charge. Note: All spare parts will be measured and paid separately.

Supply only capacitor cylindrical type ,440 volts, 3 phase, 12.50 KVAR.

Supply only capacitor cylindrical type ,440 volts, 3 phase, 25 KVAR.

Supply only lamp indicator LED Type.

Taking out existing serviceable LT panel of capacity 100/250/400 amp after disconnecting all incoming and outgoing connections including taking out carefully LT cables of various size refixing same LT panel at new location within 5 mtr radius and refixing all cables with suitable joints and lugs, new PCC foundation for LT panel and necessary modification in existing panel and busbar complete all as specified and directed Note: Additional cables and joints required of any size will be measured and paid separately.

Design, fabricate, supply, installation, testing and commissioning in replacement of outdoor type dust proof & vermin proof cubical panel board compartmentalized with seperate bus and cable alley chambers suitable for 3 phase, 4 wire, 415 Volts, 50 Hz, AC supply system as per latest IS / IEC standards & regulations, factory fabricated in an approved factory (Manufacturer possessing CPRI test report for equivalent ratings) having modern fabrication facilities, made out of CRCA sheet steel of 3.15 mm thick for outer shell and 2 mm thick for inner shell with front and rear openable double leaf doors with two point locking arrangement i.e. locking system with handle up & down arrangement & pad-locking facility. Complete panel board shall be applied with powder coating painting of approved shade duly pretreated with seven tank process and suitable packing material for IP-54 degree of protection and including provision of 50mmx50mmx6mm angle iron base frame and four legs of suitable height for mounting the panel board with a minimum ground clearance of 450mm above GL to the bottom of panel including PCC foundation with PCC 1:2:4, type B1 using 20mm graded stone aggregate.

Detachable gland plates including double compression stainless steel cable glands of suitable size shall be provided for all incoming and outgoing cables. Steel plate Danger Notice Boards(02 Nos) LT 415/440 Volts, and manufacturer's name plate shall be riveted on external doors of feeder pillar box. The size of panel board be of suitable size for accommodating and including provision of following switchgear, control gear and accessories including internal wiring using copper flexibles and lugs of suitable grade/capacity including taking down old unserviceable LT Panel complete all as specified and directed:- Note: (i) Factory made name plates with feeder names / Bldg Nos shall be fixed on relevant incomer / outgoing MCCB doors. (ii) The Contractor shall submit set of all drawings of the L.T. Pillar Boxes and its components in duplicate and get the same approved from GE before commencement of production. The contractor shall furnish all details and clarifications required if any for scrutiny and evaluation. Manufacture of material to be supplied shall be done strictly as per approved drawing. However, approval of drawing shall not absolve the contractor/supplier of his liability for ensuring correctness according to applicable standards & regulations.

(iii) Outgoing:- (a) MCCB, 160 A, 3 Pole, 36 KA (Ics=100%Icu), 415 V, 50 Hz, with adjustable thermal & magnetic release - 01 Nos. (b) MCCB, 100 A, 3 Pole, 25 KA (Ics=100%Icu), 415 V, 50 Hz, with adjustable thermal & magnetic release - 01 Nos. (c) MCCB, 63 A, 3 Pole, 25 KA (Ics=100%Icu), 415 V, 50 Hz, with adjustable thermal & magnetic release - 04 Nos.

Design, fabricate, supply, installation, testing and commissioning in replacement of outdoor type dust proof & vermin proof cubical panel board compartmentalized with seperate bus and cable alley chambers suitable for 3 phase, 4 wire, 415 Volts, 50 Hz, AC supply system as per latest IS / IEC standards & regulations, factory fabricated in an approved factory (Manufacturer possessing CPRI test report for equivalent ratings) having modern fabrication facilities, made out of CRCA sheet steel of 3.15 mm thick for outer shell and 2 mm thick for inner shell with front and rear openable double leaf doors with two point locking arrangement i.e. locking system with handle up & down arrangement & pad-locking facility. Complete panel board shall be applied with powder coating painting of approved shade duly pretreated with seven tank process and suitable packing material for IP-54 degree of protection and including provision of 50mmx50mmx6mm angle iron base frame and four legs of suitable height for mounting the panel board with a minimum ground clearance of 450mm above GL to the bottom of panel including PCC foundation with PCC 1:2:4, type B1 using 20mm graded stone aggregate.

Detachable gland plates including double compression stainless steel cable glands of suitable size shall be provided for all incoming and outgoing cables. Steel plate Danger Notice Boards(02 Nos) LT 415/440 Volts, and manufacturer's name plate shall be riveted on external doors of feeder pillar box. The size of panel board shall be of suitable for accommodating and including provision of following switchgear, control gear and accessories including internal wiring using copper flexibles and lugs of suitable grade/capacity including taking down old unserviceable LT Panel complete all as specified and directed:- Note: (i) Factory made name plates with feeder names / Bldg Nos shall be fixed on relevant incomer / outgoing MCCB doors. (ii) The Contractor shall submit set of all drawings of the L.T. Pillar Boxes and its components in duplicate and get the same approved from GE before commencement of production. The contractor shall furnish all details and clarifications required if any for scrutiny and evaluation. Manufacture of material to be supplied shall be done strictly as per approved drawing. However, approval of drawing shall not absolve the contractor/supplier of his liability for ensuring correctness according to applicable standards & regulations.

(iii) Outgoing:- (a) MCCB, 200 A, 3 Pole, 36 KA (Ics=100%Icu), 415 V, 50 Hz, with adjustable thermal & magnetic release - 01 Nos. (b) MCCB, 160 A, 3 Pole, 25 KA (Ics=100%Icu), 415 V, 50 Hz, with adjustable thermal & magnetic release - 01 Nos. (c) MCCB, 63 A, 3 Pole, 25 KA (Ics=100%Icu), 415 V, 50 Hz, with adjustable thermal & magnetic release - 02 Nos. (d) On-Load Changeover switch 4 Pole, 400A, 415 Volts, AC, 50 Hz in sheet Metal enclosure with front operated handle - 01 No

Supply and laying as in replacement 50 mm outer dia, double walled, corrugated HDPE duct pipe conforming to IS- 14930 Pt-II with antirodent and non flame propogating properties of approved colour complete with fittings for cable protection complete all as specified and as directed.

Supply and laying as in replacement 100 mm outer dia, double walled, corrugated HDPE duct pipe conforming to IS- 14930 Pt-II with antirodent and non flame propogating properties of approved colour complete with fittings for cable protection complete all as specified and as directed.

Jai Maa Electrical Works (BID ID -3314821)

SHRI BALA JI CONSTRUCTION COMPANY (BID ID -3309146)

M/s Kang Builders & Developers (BID ID -3315309)

shiv shanker enterprises (BID ID -3315396)

Alpha Engineers and Builders (BID ID -3315317)