REPAIR/ MAINTENANCE OF SERVICES CONNECTION, DISTRIBUTION BOARD, BUILDING SUBMAIN EARTHING AND ALLIED WORK AT SITE -P AND SITE -R AT AF STATION THANE UNDER GE (AF)THANE

Taking down sub main wiring of any size complete and making good disturbed surface of walls/floors etc complete all as specified and directed by Engr-in-charge.

M & L submain wiring with two single core through FRLSH PVC insulated unsheathed stranded copper conductor 6 sqmm (nominal area) drawing through PVC coundit concealed and 6 sqmm stranded copper conductor cable PVC insulated and unsheathed (green colour) 1100 volts grade for earth continuity conductor and connecting with main earth dolly complete all as specified and directed by Engr-in-charge. Note : (i) Three lenght of wire along with conduit will be measured as one Length. (ii) Rates are deemed to include with cutting chases for conduit and sinking's for boxes and making good to walls, floors etc.

-ditto- all as per item No 2 here in before but of size 2 x 4 sq mm and 1 x 4 sqmm.

M & L submain wiring with two single core through FRLSH PVC insulated unsheathed stranded copper conductor 6 sqmm (nominal area) drawing through PVC capping casing and 6 sqmm stranded copper conductor cable PVC insulated and unsheathed (green colour) 1100 volts grade for earth continuity conductor and connecting with main earth dolly complete all as specified and directed by Engr-in-charge. Note : (i) Three lenght of wire along with conduit will be measured as one Lengt. (ii) Rates are deemed to included with cutting chases for conduit and sinking's for boxes and making good to walls, floors etc

-ditto- all as per item No 4 here in before but of size 2 x 4 sq mm and 1 x 4 sqmm.

-ditto- all as per item No 4 here in before but of size 2 x 10 sq mm and 1 x10 sqmm.

S & F LoadlineDistribution board, TP&N vertical, with Bus bars, 200A, 415V CapNetural links,blanking plates, double door 12 way, with MCCB 63 to 100 Amps as incommer and SP/DP/TP MCB as outgoing and electrically connecting up ,complete all as specified and as directed by Engr-in-charge. Make : Havells/Benlo/Legrand/Standered/Schneider/Indo asian.

S & F Loadline Distribution board, TP&N vertical, with Bus bars, 200A, 415V CapNetural links,blanking plates, double door 8 way, with MCCB 63 to 100 Amps as incommer and SP/DP/TP MCB as outgoing and electrically connecting up ,complete all as specified and as directed by Engr-in-charge. Make : Havells/Benlo/Legrand/Standered/Schneider/Indo asian.

S & F Loadline Distribution board, TP&N vertical ,with Bus bars, 200A, 415V Netural links,blanking plates, double door 4 way, with MCCB 63 to 100 Amps as incommer and SP/DP/TP MCB as outgoing and electrically connecting up ,complete all as specified and as directed by Engr-in-charge. Make : Havells/Benlo/Legrand/Standered/Schneider/Indo asian.

S & F Distribution board, SP&N ,Prewired ,Netural links,blanking plates, double door 4 way, with provision for MCB SP&N as incommer and SP/DP MCB as outgoing and electrically connecting up ,complete all as specified and as directed by Engr-in-charge. Make : Havells/Benlo/Legrand/Standered/Schneider/Indo asian.

S & F Distribution board, SP&N ,Prewired ,Netural links,blanking plates, double door 8 way, with provision for MCB SP&N as incommer and SP/DP MCB as outgoing and electrically connecting up ,complete all as specified and as directed by Engr-in-charge. Make : Havells/Benlo/Legrand/Standered/Schneider/Indo asian.

S & F Distribution board, SP&N, Prewired ,Netural links,blanking plates, single door 12 way, with provision for MCB SP&N as incommer and SP/DP MCB as outgoing and electrically connecting up ,complete all as specified and as directed by Engr-in-charge. Make : Havells/Benlo/Legrand/Standered/Schneider/Indo asian

S & F MCB SP 6 to 32 Amps 240 volts 50 HZ having 10 KA ,complete all as specified and as directed by Engr-in-charge.

S & F MCB SPN 40 Amps 240 volts 50 HZ having 10 KA ,complete all as specified and as directed by Engr-in-charge.

S&F MCB SPN 240 volt,50Hz,63 Amp,C Curve,10kA breaking capacity ,complete all as specified and as directed by Engr-in-charge.

S & F MCB TP 40 Amps 240 volts 50 HZ having 10 KA ,complete all as specified and as directed by Engr-in-charge.

S&F MCB TPN 415 volt 63 Amp,"C" Curve 16kA breaking capacity ,complete all as specified and as directed by Engr-in-charge.

S & F RCCB DP 6 Amps 240 volts 50 HZ having ,complete all as specified and as directed by Engr-in-charge.

Supply and fixing MCCB four pole with thermal Release range 40/63 Amps, 18KA, 415V, 50 Hz including extension bar for connection cable and taking down the unserviceable MCCBcomplete all as specified and as directed by Engr-in-charge.

Supply and fixing MCCB four pole with thermal Release range 100-125 Amps, 18KA, 415V, 50 Hz including extension bar for connection cable and taking down the unserviceable MCCB complete all as specified and as directed by Engr-in-charge.

Supply and fixing MCCB four pole with thermal Release range 160 Amps, 36KA, 415V, 50 Hz including extension bar for connection cable and taking down the unserviceable MCCB complete all as specified and as directed by Engr-in-charge.

Supply and fixing MCCB four pole with thermal Release range 200 Amps bracking capacity 36KA, 415V, 50 Hz including extension bar for connection cable and taking down the unserviceable MCCB complete all as specified and as directed by Engr-in-charge.

Supply and fixing MCCB four Pole with thermal Release range 250 Amps bracking capacity 36KA, 415V, 50 Hz including extension bar for connection cable and taking down the unserviceable MCCB complete all as specified and as directed by Engr-in-charge.

Supply and fixing MCCB four pole with thermal Release range 400Amps bracking capacity 36KA, 415V, 50 Hz including extension bar for connection cable and taking down the unserviceable MCCB complete all as specified and as directed by Engr-in-charge.

Earthing complete with copper earth plate electrode of size 600 x 600 x 3 mm buried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of the plate not less than 1.5 metre below normal ground level, connected to & including copper earth strip of size 20X3mm dia by means of GI bolts, nuts, washers, and connected to other end to main board duly protected by 15 mm bore GI light grade pipe from earth plate. Earth plate shall be surrounded by packed layer of coal dust 300mm and common salt 15 cm thick all around bottom and top. Watering pipe 20 mm bore of GI medium grade pipe and including funnel, wire mesh, CI cover & frame, PCC (1:3:6) type C2 (using 40 mm graded stone aggregate) as in earthing pit including necessary excavation & earth work, all as specified & shown in electrical plate No. 5 of SSR Part – I. Rate are deemed to include 7.5 Mtr 20X3mm size copper strip Note : PCC/HDPE chamber shall be constructed at least 1.5 metre away from the earth electrode and pipe for watering shall be provided in slanting manner. (ii). Earth resistance of earth pit should be less than 2 Ohms. On testing after completion if the desired earth resistance is not obtained the earthing will be redone at no extra cost. (iii) Rate quoted by the tenderer is deemed to include salt & Charcoal upto & above 450 mm top of Copper plate. (iv) Soil investigation if required shall be carried out by contractor without any extra cost.

Supply and fix in replacement street light timer digital type with 24 Hours operation settings including ML-4 contractor 63 Amps Three phase 430 volt AC with Control wiring of 6 Sqmm copper wire with TPN MCB of 63 Amps , 10 KA and 20 Amps single phase backlite fuse including sheet metal enclouser of 2mm thick with powder coating with mounting arragenets, angle iron frame and PCC foundation etc including taking down the unserviceable item complete all as specified and as directed by Engr-in-charge.

M&L for periodical testing and measuring the earth resistance value of the existing earthings / Down conductor / air terminal by means of wheat stone bridge method after disconnecting the earth continuity conductor from the test point , applying secondary voltage across the terminals, maintaining proper record of the measurement in presence of the users rep, MES rep, submitting the test records, pouring saline water in the earth pit to achieve low earth resistance, observing the same complete for monthly/Quarterly/Half yearly L2/L3 eqpts/E&M installations/Lightning arresters test ,complete all as specified and as directed by Engr-in-charge.

Material and labour for construction of earth pit chember of size 0.6mx0.6mx0.6m made with PCC 1:2:4 type B-2 (using 20mm graded stone aggregate) including HDPE earthing pit cover inspection chember of size 200 mm depth, 300mm length and300mm width including necessary form work, excavation, RFR, removal of surplus soil complete all as specified and as directed by Engr-in-charge.

Material and labour for Brazzing of copper earth strip 20/25/32 mm with available at site and reconnected properly ,complete all as specified and as directed by Engr-in-charge.

Taking down unserviceable and dislocated Copper/aluminium strip of any size from floor of any size height ,complete all as specified and as directed by Engr-in-charge.

S&F,in repair, copper strip of 20 x 3.15 mm as roof conductor and down conductor till test point complete all as directed. Note-Copper strip to be jointed through brazing only ,complete all as specified and as directed by Engr-in-charge.

S&F,in repair, aluminium strip of 25 x 3.15 mm as roof conductor and down conductor till test point all as directed. Note-Galvanised strip to be jointed through brazing only.

Taking down unserviceable and dislocated air termination rod of any type from floor of any size ,complete all as specified and as directed by Engr-in-charge.

S&F in repair single pointed soild copper rod 300mm long and 12mm dia fixed on suitable flat mounted plate and connected with roof/down conductor ,complete all as specified and as directed by Engr-in-charge.

S&F in repair single pointed soild Aluminium rod 300mm long and 12mm dia fixed on suitable flat mounted plate and connected with roof/dowen conductor ,complete all as specified and as directed by Engr-in-charge.

S&F Porcealing insulators in replacement for fixing Copper strip on wall / Roof bldg with necessary screws washers and nut bolts etc all Specified . Note - Rates are inclusive of copper screws with washers for fixing copper strip on porciline insulator with minimum size 1 inch and maximum size 1.5 inch with max external dia of screw is 8mm and 2 nos of GI nut for fixing insulator on wall all as per site requirement ,complete all as specified and as directed by Engr-in-charge.

S&F in repair GI pipe of 20 mm dia medium grade for fixing air termination rod, the pipe shall be suitably tapered for fixing the saddle insulator at an interval not exceeding 0.5 meter, the pipe should be laid vertically and should be properly supported, length of each vertically pipe should not exceed 3 RM, the air termination rod, down conductors should be insulated from the pipe all as directed.

Taking down unserviceable test point terminals block and supply and fixing the same. The terminal block made with gun metal size 75mm x 75mm x 25mm drilled and screwed including 3 nos 8mm dia 25mm long hex head of gun metal screw ,complete all as specified and as directed by Engr-in-charge.

M & L for Earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6mm thick burried directly in ground earth pit not less than 2.25 mtr deep below normal ground level with top edge of the plate vertically to a depth of not less than 1.5 mtr below ground level connection to and including 4mm dia (8 SWG) GI earth wire from earth plate to main switch board including necessary GI bolts, nuts, check nuts, washers, thimble etc to the extend 7.5 mtr as earth lead by means of GI bolts & nuts etc, connecting to LT panel wlith provision of charcoal and salt all as per electrical plate No 3 of SSR Part-I including water arrangement with GI pipe 20mm dia (medium grade) excavation and earth work returning , filling, ramming and remove of soil to a distance not exc 50 mtr, make good to match with existing surface and testing on completion.Note:1.After completion if test results are nor satisfied, earthing should be redone by contractor without any extra cost. 2. Contractor should quote the rate deemed to be included with testing.

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