CA NO. GE (I) (AF)/SHL/ OF 2020-2021 PROVISION OF STANBY HT CABLE FROM FOUR POLE STRUCTURE NEAR COMMAND POWER HOUSE TO SUB STATION No. 1 AT EAC (U), AF UNDER GE (I) (AF) SHILLONG

Amount

Excavation in trenches in soft / loose soil, not exc 1.5 m wide and n. exc 1.5 m depth or n exc 10 Sqm on plan & getting out, for laying of cables, foundations of poles, struts, stays etc. and getting out including triming and forming bottom surface complete, all as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cms thick in soft / loose soil back in trenches after cables have been laid and tested, poles, stays , struts have been erected and tested complete all as directed.

Removing excavated materials to a distance not exc 50m and depositing where directed at a level not exc 1.5 m above the starting point in soils complete all as directed.

M & L for PCC 1:4:8 type D-2 using 40 mm graded crushed stone aggregate as in foundation of poles/ struts/ stay assembly etc complete all as directed.

M&L for PCC 1:2:4 type C-1 using 20 mm graded crushed stone aggregate as in padestal of poles etc including weathring, slightly rounded or chambered angle and throating including use and waste of necessary form work finishing all exposed faces of concrete even and smooth using extra cement complete all as directed.

Supplying, laying, jointing, testing and commissioning XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with aluminum conductors, 11 KV grade of , IS 7098 marked, suitable for HT 11 KV(E) system, laid in trenches / ducts / encased in GI pipe / fixed to pole complete all as specified and directed of following sizes:-

120 Sqmm, 3 core (Note :- Excavation & earth work, GI pipe for laying of cable, sand cushioning, cable protection cover shall be measured and paid for seprately under respective items of the schedule.)

M & L for outdoor type heat shrinkable cable end termination jointing kit for HT 11000 Volts(Earthed) grade cable of following size complete with jointing material and accessories complete all as directed :-

120 Sqmm, 3 core

M & L for indoor type heat shrinkable cable end termination jointing kit for HT 11000 Volts(Earthed) grade cable of following size complete with jointing material and accessories complete all as directed :-

120 Sqmm, 3 core

M & L for trenchless boring in any strata of soil across road, pavement, hardstanding etc by using hand operated boring tool upto a depth as directed but not less than 0.60 mtr below GL/ road, pavement, hardstanding etc for laying of HT cable under road, pavement, hardstanding etc without damaging existing under ground materials including provision of HDPE pipe of 100mm dia of 0.4mpa working pressure complete all as directed.

S & F Galvanised steel tubing light grade for protection of under ground cable on poles / walls/under road crossing/laid in trenches etc conforming to IS-1239 for following bore complete all as directed:-

100 mm bore (Note : Excavation & earth work shall be measured & paid separately under respective items of this Schedule).

M & L for dry sand cushioning to PVC under ground cable with screened and washed sand and punning to provide a required cover complete all as specified and directed. Note :- Thickness after punning shall be considered for payment.

Supply and laying factory made ISI marked un-reinforced precast concrete cable cover class HV type I flat of size 300mm x 180mm x 40mm complete all as specified and directed.

Supply and fixing HT cable route indicator made out of standard cast iron body firmly mounted on angle iron of size 40mm x 40mm x 5mm 750mm long duly painted in colour as directed along HT cable trench including embedding of route indicator in PCC 1:2:4 type B-1 block of size 15cmx15cmX30cm deep, complete all as directed.

Supplying, transporting to site errecting and fixing in position Steel tubular swaged pole, 11 metres long, type 410 SP-55, complete with cast iron base plate, pole cap, finial taper plug, bolts, nuts, washers etc including painting with two coats of aluminium paint over one coat of red oxide primer including 3 nos band/straps in red post office box colour (300mm wide EACH) using fluorescent paint commencing at a distance 300mm from padestal of pole and marking pole nos with black synthetic enamelled paint including tarring one coat on steel surface embedded in concrete complete all as specified and directed. Note:- Excavation and earth work, PCC etc shall be measured and paid separately under respective items.

Supply and fixing MS structural steel work in cross arms, bracings, supports, clamps and back plates fabricated (with drilled holes hot and cold etc) from channel/angle iron sections of various size and shape FI clamps (full, half 'D' and earth clamp etc) including necessary MS bolts, nuts, washer etc and painting with two coats of aluminium paint over one coat of red oxide primer complete all as directed.

M & L for disc type insulator, porcelain, vitreous 145mm high and 255 mm dia ball and socket type, white brown or green ' Single disc' assembly for tension with tension clamps for conductors, working pressure 11000 Volts complete all as specified and directed.

Supply, installing, testing and commissioning of Air-break, gang operated, triple pole switch, outdoor, horizontal mounting type (ISI marked), mechanically operated, mounted on insulators for current rating upto 400 Amps complete with fuse mounts, fuse carriers and HT fuse elements and frame work with operating mechanism worked from ground level, with locking arrnagments including Godrej pattern 65mm pad locks with two keys, complete suitable for HT 11 KV, 50 Hz AC supply and making necessary electric connections, complete all as directed.

S & F Lightening arresters non linear type complete with all fitting, transmission class, discharge capacity 65 KA, 11000 volts grade including clamps nut, bolts & washers and connecting to earth with GI strip/wire complete all as specified and directed

S & F Danger notice plate of size 25x20cm and 1.6mm thick mild steel, vitreous enamelled white, with letter, figures and conventional skull bones in signal red colour and fixed with mild steel clamps, nuts, bolts and washers, clamps made out of 25x3mm flat iron for HT poles/transformers/pillar box etc with voltage and danger indicated in Hindi and English complete all as directed.

M & L for Anti-climbing device,comprising 2.24mm dia galvanised steel 2 strand barbed wire with 2.00mm dia barbs wrapped spirally round poles, to a length of 0.5 to 1.0metre clamped (including clamps of size as directed) and properly secured or as ordered complete, all as specified and directed.

M & L for earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to galvanized iron strip 32x6mm earth lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel besides welding at all joints as shown in drawing and including excavation and earth work, GI pipe light grade 40mm bore for protection of earth wire and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt PCC 1:2:4 type B1, chamber and MS angle iron frame 40x40x3mm and RCC cover 40mm thick (1:2:4) type B1 using 20mm graded stone aggregate reinforced with 6mm dia round bars @ 75mm C/C both ways with MS handle 12mm dia, PGI/CI funnel and wire mesh, 20mm dia GI pipe medium grade for watering all as shown in electrical plate No 5 on srl page No 497 of SSR Part I (2009) drawing and connection to earth test point including testing and including dismantling and taking out old earthing complete all as specified and directed. Note : (i) The cost of earth lead /strip and GI pipe for protection of earth lead/strip upto 7.5m is included in the quoted rate. (ii) The cost of excavation, earth work is included in the quoted rate.

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