87626E8 RPRS OF EXT ELECT WITH LIGHTNING CONDUCTOR, MAIN SWITCH GEARS IN AF DOM AREA UNDER GE AVADI, CHENNAI.

Amount

BOQ UPLOADED ON 02 NOV 2020

SCH "A" PART-I (EXTERNAL ELECTRIFICATION)

Excavating in trenches, not exceeding 1.5m wide and not exceeding 1.5m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc not exceeding 10 sqm on plan and not exceeding 1.5m depth and getting out in any type of soil all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in any type of soil complete all as specified and as directed.

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

Taking up and down steel tubing and connections and taken on credit and provision of Steel tubing, galvanised, light grade, with all fittings such as bends, elbows, tees etc., and laid in trenches / under roads / crossings etc., of the following bores for cable protection complete all as specified and as directed.

Earthwork as required shall be measured and paid separately.

(a) 40mm bore of pipe.

(b) 50mm bore of pipe.

Dismantling cross-arms of mild steel channel or angle sections etc., complete and taken on credit and provision of new Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat of red oxide zinc chrome primer, one under coat and one finishing coat of aluminium paint complete all as specified and as directed.

Aluminium strip 25 x 3.15mm with saddles and fixing screws etc., for roof conductors and down conductors above ground as in repairs complete all as specified and as directed.

Copper strip 20 x 3.15mm with saddles and fixing screws etc., for roof conductors and down conductors above ground as in repairs complete all as specified and as directed.

Copper strip 32 x 6mm buried in ground as in repairs complete all as specified and as directed.

Earthwork as required shall be measured and paid separately.

Earth continuity conductor or main earthing lead of 32 x 6mm galvanised iron strip 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 as in repairs complete all as specified and as directed.

Earthwork as required shall be measured and paid separately.

Changeover switch, 160 Amps, 4 pole, 415 Volts, on load type, open execution conforming to IS:13947 (Part-3); IEC:60947-3 as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHCNFO0160 or equivalent of makes as listed here-in-after.

Changeover switch, 200 Amps, 4 pole, 415 Volts, on load type, open execution conforming to IS:13947 (Part-3); IEC:60947-3 as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHCNFO0200 or equivalent of makes as listed here-in-after.

Changeover switch, 250 Amps, 4 pole, 415 Volts, on load type, open execution conforming to IS:13947 (Part-3); IEC:60947-3 as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHCNFO0250 or equivalent of makes as listed here-in-after.

Changeover switch, 400 Amps, 4 pole, 415 Volts, on load type, open execution conforming to IS:13947 (Part-3); IEC:60947-3 as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHCNFO0400 or equivalent of makes as listed here-in-after.

Changeover switch, 160 Amps, 4 pole, 415 Volts, on load type, stainless steel enclosure conforming to IS:13947 (Part-3); IEC:60947-3 as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHCNFE0160 or equivalent of makes as listed here-in-after.

Changeover switch, 200 Amps, 4 pole, 415 Volts, on load type, stainless steel enclosure conforming to IS:13947 (Part-3); IEC:60947-3 as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHCNFE0200 or equivalent of makes as listed here-in-after.

Changeover switch, 250 Amps, 4 pole, 415 Volts, on load type, stainless steel enclosure conforming to IS:13947 (Part-3); IEC:60947-3 as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHCNFE0250 or equivalent of makes as listed here-in-after.

Changeover switch, 400 Amps, 4 pole, 415 Volts, on load type, stainless steel enclosure conforming to IS:13947 (Part-3); IEC:60947-3 as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHCNFE0400 or equivalent of makes as listed here-in-after.

MCCB 63 Amps, 4 pole, 415 Volts, 3 phase, 50 Hz, 25 kA breaking capacity, with adjustable thermal and fixed magnetic setting with protection for overload and short circuit and conforming to IEC60947 / IS 13947 (Pt-II) 1993 (Latest version) and with Ics = 75% of Icu having spreader links and barriers as standard feature of manufacturer as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHLASF0063 or equivalent of makes as listed here-in-after.

MCCB 125 Amps, 4 pole, 415 Volts, 3 phase, 50 Hz, 25 kA breaking capacity, with adjustable thermal and magnetic setting with protection for overload and short circuit and conforming to IEC60947 / IS 13947 (Pt-II) 1993 (Latest version) and with Ics = 75% of Icu having spreader links and barriers as standard feature of manufacturer as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHLASDCF0125 or equivalent of makes as listed here-in-after.

MCCB 100 Amps, 4 pole, 415 Volts, 3 phase, 50 Hz, 25 kA breaking capacity, with adjustable thermal and magnetic setting with protection for overload and short circuit and conforming to IEC60947 / IS 13947 (Pt-II) 1993 (Latest version) and with Ics = 75% of Icu having spreader links and barriers as standard feature of manufacturer as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHLASDCF0100 or equivalent of makes as listed here-in-after.

MCCB 160 Amps, 4 pole, 415 Volts, 3 phase, 50 Hz, 25 kA breaking capacity, with adjustable thermal and magnetic setting with protection for overload and short circuit and conforming to IEC60947 / IS 13947 (Pt-II) 1993 (Latest version) and with Ics = 75% of Icu having spreader links and barriers as standard feature of manufacturer as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No. IHLANDCF0160 or equivalent of makes as listed here-in-after.

MCCB 200 Amps, 4 pole, 415 Volts, 3 phase, 50 Hz, 36 kA breaking capacity, with adjustable thermal and magnetic setting with protection for overload and short circuit and conforming to IEC60947 / IS 13947 (Pt-II) 1993 (Latest version) and with Ics = 100% of Icu having spreader links and barriers as standard feature of manufacturer as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No.IHLLSECF0200 or equivalent of makes as listed here-in-after.

MCCB 250 Amps, 4 pole, 415 Volts, 3 phase, 50 Hz, 36 kA breaking capacity, with adjustable thermal and magnetic setting with protection for overload and short circuit and conforming to IEC60947 / IS 13947 (Pt-II) 1993 (Latest version) and with Ics = 100% of Icu having spreader links and barriers as standard feature of manufacturer as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No.IHLLSECF0250 or equivalent of makes as listed here-in-after.

MCCB 400 Amps, 4 pole, 415 Volts, 3 phase, 50 Hz, 50 kA breaking capacity, with adjustable thermal and magnetic setting with protection for overload and short circuit and conforming to IEC60947 / IS 13947 (Pt-II) 1993 (Latest version) and with Ics = 75% of Icu having spreader links and barriers as standard feature of manufacturer as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No.IHLLNFCF0400 or equivalent of makes as listed here-in-after.

MCCB 630 Amps, 4 pole, 415 Volts, 3 phase, 50 Hz, 50 kA breaking capacity, with adjustable thermal and magnetic setting with protection for overload and short circuit and conforming to IEC60947 / IS 13947 (Pt-II) 1993 (Latest version) and with Ics = 75% of Icu having spreader links and barriers as standard feature of manufacturer as in repairs complete all as specified and as directed.

(a) Make shall be Havells Cat No.IHLLNFCF0630 or equivalent of makes as listed here-in-after.

Removing of old earthing materials and taken on credit and provision of new earthing complete with galvanised iron earth plate electrode 600mm X 600mm X minimum 6mm thick, with and including earthing of 25mm x 4mm GI strip protected by 40mm dia GI pipe light grade upto a length of 7.5m. The plate shall be buried directly in ground vertically to a depth not less than 2.25 metres below ground level with top edge of the earth plate at a depth not less than 1.5 metres below ground level, connected to earth lead as described here-in-before by means of bolts, nuts, washers and checknuts made out of galvanised iron or mild steel, earthing lead protected by as described here-in-before and connected to main switch board or main control board or electric pole all as shown on electrical plate No.3 of MES Sch Part-I including necessary earth work and excavation in any type of soil, plain cement concrete 1:3:6, type C1 chamber, reinforced cement concrete cover slab with locking arrangement and handle of 10mm dia MS round bars 450mm long, 1:2:4 type B1, 50mm thick with 8mm dia TMT bars at 140mm centre to centre both ways, GI pipe of bore 20mm medium grade for watering with funnel, wiremesh, salt, charcoal, lugs including testing complete all as specified and as directed.

Removing of old earthing materials and taken on credit and provision of new earthing complete with galvanised iron earth plate electrode 600mm X 600mm X minimum 6mm thick, with and including earthing of 32mm x 6mm GI strip protected by 40mm dia GI pipe light grade upto a length of 7.5m. The plate shall be buried directly in ground vertically to a depth not less than 2.25 metres below ground level with top edge of the earth plate at a depth not less than 1.5 metres below ground level, connected to earth lead as described here-in-before by means of bolts, nuts, washers and checknuts made out of galvanised iron or mild steel, earthing lead protected by as described here-in-before and connected to main switch board or main control board or electric pole all as shown on electrical plate No.3 of MES Sch Part-I including necessary earth work and excavation in any type of soil, plain cement concrete 1:3:6, type C1 chamber, reinforced cement concrete cover slab with locking arrangement and handle of 10mm dia MS round bars 450mm long, 1:2:4 type B1, 50mm thick with 8mm dia TMT bars at 140mm centre to centre both ways, GI pipe of bore 20mm medium grade for watering with funnel, wiremesh, salt, charcoal, lugs including testing complete all as specified and as directed.

Air break, gang operated switch, with current rating 200 Amps, HT, 11000 Volts, triple pole mechanically operated, mounted on insulator and steel frame, with operating mechanism worked from ground level as in repairs complete all as specified and as directed.

BKR Enterprises