SPECIAL REPAIR/ REPLACEMENT OF WIRING AND EARTHING PITS AT CERTAIN MD ACCN, OTM ACCN AND EM INSTALLATIONS AT AF STN BIKANER

Taking down carefully copper/ aluminium point wiring (light, fan, socket or power) complete including switches, ceiling roses, pendants, regulators, sockets, light fittings, etc., removing materials to store for safe custody or taking credit and making good disturbed surfaces of walls, floors, etc., all as specified and directed.

Taking down existing unserviceable main switch / cut out / distribution boards of any type or capacity, including making good disturbed surfaces to match existing finishes, complete all as specified and directed.

M & L for Point wiring on concealed conduit with 1.5 Sq mm copper conductor single core FRLS PVC insulated unsheathed 1100 V grade multistranded drawn into and including rigid minimum 20mm dia PVC conduit with accessories of suitable dia medium grade concealed in walls/floors and pressed steel terminal boxes MS, duly painted with red oxide metal primer including fixing/grouting sunken/ surface as per site requirement covered with 3 mm thick laminated sheet including one running up of 1.5 Sq mm copper conductor PVC insulated cable as earth continuity conductor along with wiring and connecting to the common earth dolly all as specified.

One light point controlled by one, one-way 6A SP switch complete all as specified.

One ceiling or exhaust fan point controlled by one, one-way 6A SP switch complete all as specified.

One bell point controlled by one bell push complete all as specified.

One light point controlled by two 2-way 6A switches complete all as specified.

One 3-pin 6A socket outlet controlled by one switch on the same board complete all as specified.

One 3-pin 6A socket outlet controlled by one switch on an independent board complete all as specified.

All as per item No. 3 but using 4.0 Sqmm single core copper conductor cable for 6/16A socket outlet point including 4.0 Sqmm copper FRLS PVC insulated earth wire, complete all as specified and directed.

S&F switch piano type, single pole, one-way, 6A, 230V flush mounting complete all as specified and directed.

S&F switch piano type, single pole, two-way, 6A, 230V flush mounting complete all as specified and directed.

S&F bell push piano type, flush mounting, 6A, 230V, single pole, complete all as specified and directed.

S&F socket, 5-pin, 6A, 230V, flush type, complete all as specified and directed.

S&F switch socket combination 2-in-1, 6A, flush type, complete all as specified and directed.

S&F switch socket combination 2-in-1, 5/15A universal type, flush mounting, complete all as specified and directed.

S&F ceiling rose, 3-terminal, bakelite type, 230V, size 65x50mm, complete all as specified and directed.

S&F lamp holder, metal cased with bakelite body, 230V, complete all as specified and directed.

S&F LED lamp 9W, 230V, complete all as specified and directed.

Supply and fix LED light fitting, 1x22/20W, 220V, aluminium extruded body box type decorative fitting with electronic driver and holder including connection with 3-core flexible copper conductor cable of suitable size from ceiling rose, complete all as specified and directed.

Supply and fix LED mirror light fitting, 2ft long, 10W, 230V, aluminium extruded body box type decorative type with diffuser, driver, holder, and LED lamp including connection with 3-core flexible copper cable, complete all as specified and directed.

S&F LED bulkhead luminaire 1x9W/10W including LED driver, holder, and connections complete all as specified and directed.

S&F electric bell (Ding-dong), AC 230V, single pole, complete with testing all as specified and directed.

Supply and fix stepped type electronic fan regulator, AC 230V suitable for ceiling fans of 1200/1400mm sweep complete all as specified and directed.

Disconnecting and removing ceiling fan of 1200/1400 mm sweep any height from electrical connection bringing down, dismantling, cleaning internally and externally thoroughly examine replacement of split pins, cotter pins and check nuts etc overhauling, lubricating with approved lubricants, reassembling, including replacement of wornout/defective parts, refixing in original position including minor repairs for the smooth functioning and provision of new flexible wire of size 23/0.0076 multistranded copper conductor cable 3 core drawn through and including flexible conduit 15mm size from ceiling rose to fan including painting of ceiling fan complete cleaning all dust etc and testing complete all as specified.

S&F single pole and neutral enclosure with 2-pin and earth plug and socket complete with 20A SP MCB, 240V, complete all as specified and directed.

M & L for Submain wiring with two single core 6 Sq mm FRLS PVC insulated unsheathed copper conductor multistranded 1100 Volts grade drawn in and including concealed rigid PVC conduit of suitable dia, conduit fittings and accessories concealed in wall/ floor with one run of 6 sqmm FRLS PVC insulated unsheathed copper conductor cable as earth continuity conductor along the wiring and connected to the common earth dolly complete including removing the existing unserviceable sub main wiring and making good the disturbed surface to match with the existing all as specified. Note 1: Two runs of 6 Sqmm cable, one run of 6 Sqmm earth contuinity conductor and one run of conduit shall be measured and paid as one unit length.

All as per item No. 21 but using 4 Sqmm FRLS PVC insulated copper conductor cable and 4 Sqmm FRLS PVC insulated earth wire complete all as specified and directed.

S&F sheet metal enclosure double door SPN DB 12-way 240V with 200A rated bus bar complete all as specified and directed.

S&F MCB SPN 40–63A, 240V, 10kA complete all as specified and directed.

S&F MCB SP 6–32A, 240V, 10kA complete all as specified and directed.

S&F exhaust fan, 300mm sweep, made of steel body complete with louvers, shutter, voltage 230V, 50Hz, 1200 RPM noiseless copper winding, blades, self closing louvers including cutting the hole on any type of wall and making good disturbed surfaces complete all as specified and directed. Note: The rates quoted shall be inclusive of cutting any type of wall and making good the disturbed sufraces.

S&F energy saving and environment-friendly LED security light 35W, IP66, with all accessories and three-core flexible copper cable connection complete all as specified and directed.

S&F GI pipe bracket 40mm bore, light grade, 1.2m long, bent to shape, with MS clamps, nuts, bolts and washers for mounting security light complete all as specified and directed.

M&L for maintenance free safe earthing system with set of four separate electrod to be used as grid earthing each pit complete with 01 Number UL 467 approved/CPRI tested copper bonded (copper cladded earth rod with 250 microns of copper cladding) earth rod with 17.2mm dia 3000mm long electrode buried in ground to bore holes 120 mm dia vertically to a depth not less than 3.50 mtr deep blow ground level or L shape in case of Rocky condition (2 ft deep and 8 ft horizontol) with top edge of earth electrode at a depth not less than 500mm below normal ground level, provision of copper bus bar of size 200mm x 25mmx6mm for inter connection with copper earth lead strip 25mm x 3mm and further connected to test point terminal block alongwith the protection pipe of size 25mm bore med grade all as directed. each earth pit shall include minimum 50kg (two bags of 25kg each) NABL lab Certified back fill compound and 6 kg (two container of 3kg Each) NABL Lab Certified conductive gel compound for filling bore holes with mother soil mixed in 1:3 ratio (one part of back fill compound and three part of mother soil), so as to achieve earth resistance below 1 Ohm including exacavation of polypit chamber with polyplastic pit cover (cost of poly pit chamber with polyplastic pit cover shall be deemed to be included in the rate quoted) complete all as specified and as directed by Engineer-in-charge.

M & L for Earthing complete with copper plate 60×60cm ×3.15mm thick electrode burried directly in ground (earth pit not less than 2.25m deep below normal ground level) connected to 20×3mm copper strip asearthing lead by mens of nuts, bolts, & washers as shown in SSR Part-I Connected to earthing terminal point all as specified and including necessary earth pit PCC 1:3:6 chamber be 50mm thick PCC 1:2:4 chamber cover with 6mm dia mild steel reinforcement of 10 cm c/c spacing both ways in lieu of CI cover, watering arrangement shall be made with GI pipe light grade of 20mm dia including funnel and protection to earth lead shall be provided with GI pipe light grade 15mm dia upto 7.5 mtr from the earth plate electrode & refilling of soil etc including necessary excavation & earth work in any strata and PCC chamber all as specified and directed by Engr-in-Charge including demolish existing earth pit taking out old materials.

M & L for Earthing complete with galvanised steel earth plate, electrode,600x600x6.0 mm thick burried directly in ground (earth pit not less than 2.25m deep below normal ground level) connected to GI strip 32x 6 mm thick dia by mens of nuts, bolts, & washers of GI as shown in electrical plate No. 5 of SSR Part-I Connected to earthing ten point all as specified and including necessary earth pit PCC 1:3:6 chamber be 50mm thick PCC 1:2:4 chamber cover with 6mm dia mild steel reinforcement of 10 cm c/c spacing both ways in lieu of CI cover , watering arrangement shall be made with GI pipe light grade of 20mm dia including funnel and protection to earth lead shall be provided with GI pipe light grade 15mm dia upto 7.5 mtr from the earth plate electrode & refilling of soil etc including necessary excavation & earth work in any strata and PCC chamber all as specified and directed by Engr-in-Charge including demolish existing earth pit taking out old materials.

Material and labour for earthing complete with galvanized steel earth plate electrode 600x600x6 mm thick burried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of theplate not less 1.5 mtr deep below normal ground level connected to GI earth wire 4 mm dia connected to earth plate by means of nut, bolts, check nut & washer of galvanized iron or of steel, GI earth wire will be protected by 15 mm dia GI pipe 'light grade', watering pipe 20 mm dia GI 'light grade', GI wire meshed funnel, alternate layer of char coal and salt on all side to earth plate upto thickness of 150 mm, filling of black cotton soil in earth pit upto ground level, PCC chamber recessed for and including RCC cover including all necessary excavation & earth work, earth wire connected to O/H continuous earth wire on pole, testing the earthing after completion complete all as specified and directed. Note :- (I) Earth pit shall be constructed 50cm from the side of excavation to avoid sinking of pit (II) PCC chamber shall be (1:3:6) using 20mm graded stone aggregate and 50mm thick RCC (1:2:4) type B-1 cover slab reinforced with 8mm dia TMT steel bars @ 100mm c/c both ways complete all as specified and directed.

M&L for earth continuity conductor or main earthing lead fixed to wall, batten, recess, buried in ground, or drawn in conduit as required, using copper strip 20x3mm complete all as specified and directed.

M&L for earth continuity conductor using GI strip 32x6mm as earthing lead welded with existing strip including taking down unserviceable strip complete all as specified and directed.

M&L for earth continuity conductor 4mm dia GI wire fixed to wall, batten or buried in ground as required complete all as specified and directed.

S&F test point terminal block made of gunmetal or phosphor bronze, size 75x75x25mm drilled and screwed with three brass bolts complete all as specified and directed.

S&F triple layer rotational moulded polyethylene water storage tank 500 litres capacity hoisted and fixed in position including float valve complete all as specified and directed.

Taking up or down steel tubing and connections 15mm bore including cleaning for refixing or removal to store complete all as specified and directed.

All as per item No. 38 but 20mm bore.

All as per item No. 38 but 25mm bore.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m deep for laying pipes, cables, etc., in soft/loose soil, getting out and leveling complete all as specified and directed.

Returning, filling in, spreading, leveling, watering and well ramming in layers not exceeding 25cm thick in soft/loose soil after pipes or cables are laid complete all as specified and directed.

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

Supply and laying GI water pipe, medium grade, in trenches including all fittings and testing complete all as specified and directed.

All as per item No. 44 but 15mm bore.

All as per item No. 44 but 20mm bore.

All as per item No. 44 but 25mm bore.

S&F gunmetal gate valve with iron wheel head screwed both ends for iron pipe 15mm bore complete all as specified and directed.

All as per item No. 45 but 20mm bore.

All as per item No. 45 but 25mm bore.

S&F PTMT bib tap 15mm bore high pressure type complete all as specified and directed.

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