REPAIR/REPLACEMENT OF UNSERVICEABLE EARTHING AND OTHER LIGHTING CONNECTED PROTECTION AT TECH AREA AF STN BKT

Amount

Material, labour (Technician & Helper) and T&P including testing eqpts for carring outs comprehensive maintenance and testing of earthing any type as per existing procedure for lighting protection /eqpts/domestic etc in tech area & admin area by tightening of nut bolts arranging earth lead in allighnment manner replacing unservicable earthing lead ,funnel ,pit cover and PCC pits etc (which will be paid as supply only) and testing of earthing and recording result in register (as per procedure provided as directed ,If result found more than permissible limit reconditioning of earthing carried out by pouring water with salt /chemical as per direction and further testing the same earthing result and recording in register incl levelling refilling of earth settle down near pit. Note-(i) Necessary compound required for recharging shall be measured and paid separately under item No 2 here-in-after. (ii) During AMC of earthing , if any parts of the earthing is required to be replaced the same will be done by the contractor as per directed by EIC . The cost of such parts shall deemed to be included in the unit rate quoted by the contractor for AMC. (iii) Pouring of salt/chemical/charcoal water in the earth pit is included in the rate quoted. (iv) Total no of earthing to be checked in amonth-100-130 nos

Supply only carbon based low resistivity compound Bentonite powder solution(advanced erath filling compound) complete all as specified and directed by Engr-in-charge.

Supply only copper strip 20 mm x 3.15 mm complete with saddles and fixing screws for fitting the strip for earth continuty conductor up to test points.

Supply only Galvanised iron tubing, 40 mm bore,light grade with all fittings for fixed to pole/wall/ in ground including all fixing accessories complete for protection of earth strip complete all as specified and as directed.

Supply only Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25m long hex. head screw including connecting with earthing strip complete all as specified and directed.

Supply only Alluminium earting strip of size 25X3 mm including nesassary brazing and connecting existing earthing / lightening conductor system complete all as specified and directed.

Supply only GI earting wire of size 4mm dia galvanised iron or steel wire including nesassary brazing and connecting with existing earthing system complete all as specified and directed.

Supply only galvanised iron strip 32mm x 6mm with saddles and fixing screws on porcelain insulators for roof conductors and down conductors above ground level complete all as specified.

Supply only Galvanised iron tubing,15 mm bore, light grade with all fittings for laying of Earth wire or for watering pipe including all fixing accessories complete.

Supply only PGI funnel with wire mesh of size 15 mm all as specified and directed.

Supply only charcoal dust powder of superior quality all as spcified and directed.

Supply only common salt of superior quality all as spcified and directed.

Material & labour for Chemical earthing complete with copper plate electrode 900mm x 600mm x5mm burried directly in ground vetically to a depth not less than 4.70 mtr below normal ground level (with top edge of earth plate not less than 3.60 mtrs below ground level ) connected to copper strip 32 mm x 6 mm as main earthing lead by means of brass brazing at all joints all as directed and connected to earth test point including galvenizing isolation for equipments to put E-N voltage within limit all as specified and testing on completion with and including necessary excavation and earth work in any type of soil ,GI pipe medium grade 50 mm bore for protection of copper strip from earth electrode to earth test point of galvanised Iron / steel , adequate quality of charcoal dust, common salt and magnesium sulphate in alternate layers of 100 mm thick x 6 layers all around the plate ,including Earthing pit marker/ identifier of Iron plate of size 300mm X 200mm X 3mm and alongwith 1 meter long medium grade GI pipe of size 15 mm dia weilded with steel plate including painting with applying one coat of red oxide and two coat of painting with synthetic enameled paint of approved quality including writing letters as specified ny EIC complete and PCC pit 1:3:6 type C1 using 20 mm bore grade stone aggregrate on PCC base 1:4:8 type using 40 mm agregrate of size 1500x1500x100 mm thick with precast RCC cover 40 mm thick in PCC 1:2:4 type B1 using 20 mm graded stone aggregrate with 8 mm dia TMT bars 3 nos both ways with 12 mm dia round handle , PGI funnel with wire mesh, 20 mm dia GI pipe light grade for watering all as shown in electrical plate no 3 of SSR Part no 1 of 2009 complete all as spcifed and directed.

M& L for Earthing complete with galvanised steel earth plate electrode 60cm x 60cmx6 mm thick burried directly in ground (earth pit not less than 2.25 metres deep below normal ground level) with top edge of plate not less than 1.5 metre below normal ground level connected to galvanised earth lead wire 4 mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No 3 of MES Schedule Part-I including and connecting to earthing test point block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw and testing on completion with and including 15 mm bore light grade G.I. protection pipe (upto 7.5 M beyond outer edge of earth pit) PCC base 1:4:8 type using 40 mm agregrate of size 750x750x100 mm thick with precast RCC cover 40 mm thick in PCC 1:2:4 type B1 using 20 mm graded stone aggregrate with 8 mm dia TMT bars 3 nos both ways with 12 mm dia round handle , PGI funnel with wire mesh, 20 mm dia GI pipe light grade for watering all as shown in electrical plate no 3 of SSR Part no 1 of 2009 complete all as spcifed and directed. including Earthing pit marker/ identifier of Iron plate of size 300mm X 200mm X 3mm and alongwith 1 meter long medium grade GI pipe of size 15 mm dia weilded with steel plate including painting with applying one coat of red oxide and two coat of painting with synthetic enameled paint of approved quality including writing letters as specified ny EIC complete including testing on completion complete all as specified and directed.

Same all as item no. 14 above here in before but connected to galvanised earth strip 32x6 mm as earthing lead complete all as specified and directed.

Same all as item No. 14 but using copper plate 60×60cm ×3.15mm thick electrode and 20×3mm copper strip as earthing lead complete all as specified and directed.

M&L for boring underground of 100 mm dia upto 30 mtr depth below ground level in any kind of soil strata for insertion of pipe electrode 30 mtr length and coper strips etc. for bore earthing all as directed. ( 1 X 30 RM each)

M& L for lowering bore Galvanised iron tubing, 50mm bore, medium grade with all fittings accessories for protection of earth strips complete all as specified and as directed.( 30 Rm X 01 Nos)

M&L for copper strip 32x6 mmmm complete with saddles and fixing screws for fitting the strip for earth continuty conductor up to test points.

M&L for chemical earthing by drillinmg a hole of 100 mm dia and 4 mtr in depth in any kind soil and providng a 3.0 mtr long pure copper strip of size 32x6 mm duly encapsulated in a medium grade galvenized steel of pipe of 88 mm OD and filling the hole with advance non toxic earth enhancing back fill compound quantity not less than 30 kg and water till complete soaking of chemical water mixture and providing a cylindrical type FRP earth pit chamnber of size 254mm dia at top , 330 mm dia at bottom and 260 mm height and 7.5 m long copper strip of sizxe 32 mm x6 mm as earth lead conductor duly protrcted with 65 mm bore medium grade GI pipe from terminal point to earth test point and duly connected with terminal point through breezing and to connect with earth test point with brass bolt nuts and washer of suitable size and fixed on wall by mounting the strip of frp /DMC bridge insulator and providng a test point a terminal block made of gun metal of phosphorus bronze of size 75 mmx75mmx25mm duly drilled and screwed and fixed on wall on insulators including 3 nos 8 mm dia 25 mm long hex haed brass scew complete with removing of excavated soil to a distance not excedding 50 meter and height n. exc. 1.5 m from the starting point and testing on completion all as specified and directed. Note- 1. Addl lenght of conductor beyond 7.5 mtr if required at site shall be measured and paid separately under resperctive item 2.On testing afer completion of job if desired earth resisirance less than permissible limit is not found the earthing shalll be redone at no extra cost o to govt.

Dismantling and taking down worn out and / broken air termination rod and supply and fixing new air termination,single pointed aluminium rod 12mm dia and 300mm long connecting with existing lightening conductor system complete all as specified and directed.

All as per item No. 21 above but with copper rod complete all as specified and directed.

M&L for laying of single run of single core PVC insulated unsheathed multi stranded copper conductor cable of size 10 Sqmm 1100 volts grade as earth continuity conductor drawn through in rigid non metallic PVC conduit of suitable size on roof/wall/ceiling including making good the disturbed surfaces of wall etc including taking out old unserviceable burnt/damaged wire from its existing position complete all as directed by Engr-in-Charge (Note : Non metallic PVC conduit rate included in the rate quoted ).

M& L for Earthing pit of PCC pit 1:3:6 type C1 using 20 mm bore grade stone aggregrate on PCC base 1:4:8 type using 40 mm agregrate of size 800x800x100 mm thick with precast RCC cover 40 mm thick in PCC 1:2:4 type B1 using 20 mm graded stone aggregrate with 8 mm dia TMT bars 3 nos both ways with 12 mm dia round handle all as specified and directed

M&L for brazing/soldering to the copper earth strip of size 20x3.15 mm including dismantling from existing position ,equipments without disturbing the functional requirment of the eqipments and reconnecting complete all as specified and directed.

M & L for pit marker/indicator of size 300x200x3 mm with alongwith 1 meter long medium grade GI pipe of size 15 mm dia weilded with steel plate including painting with applying one coat of rad oxide and two coat of painting with synthetic enameled paint of approved quality including writing letters, in different colors as per directive of VCAS 2016 of Airforce

M&L for painting of pit chamber and cover with syntetic enamelled paint as per code all as specifed and directed

Taking down carefully copper/aluminium point wiring (light, fan, socket or power) complete including fitting and fixture and such as as switches, sockets ceiling rose,pendent holders,regulators,light fittings any type removing materials to store in safe custody or for credite etc, and making good the disturbed surface of walls and floors etc as directed.

M&L for point wiring with two single core PVC insulated unsheathed stranded FRLS copper conductor cable of size 1.5 Sqmm 1100 volts grade in and including PVC casing capping of size 20 to 25 mm with all accessories and one single core PVC insulated unsheathed stranded copper cable of size 1.5 Sqmm 1100 Volts grade as earth continuity conductor connected to common earth dolly, switch board complete with PVC rectangular type box heavy duty for mounting the switch socket etc complete as specified for the following :-(a) One light/Fan / Exhaust point controlled by one 5 Amps switch one way complete

All as per item no 29 but one 3 pin 5 amp socket outlet on independent board controlled by one 5 Amp switch

All as per item No.29 here-in-before but with 2.5 sqmm 1100 volt grade on independent board.

All as per item No 29 but wiring in existing conduit cleaning the existing terminal boxes and painting with two coat of black bituminous paint over a coat of red oxide primer all as specified for:- One light/fan point controlled by one switch

All as per item no 32 but one bell point controlled by one 5 Amp bell push complete

All as per item no 32 but One 5 Amp socket point controlled by one 5 Amp switch independent board with cable 1.5 sqmm.

All as per item no 32 but on the same board.

All as per item No 32 herein before but using 2.5 sqmm, PVC insulated, stranded copper conductor single core cable for one 3 pin 15 Amp socket out let point on an independent board

M & L for point wiring with two single core PVC insulated & PVC unsheathed FRLS multistranded copper conductor cable of size 1.5 sqmm 1100 volt grade in and including making good the disturbed surface of wall with colour washing /distempering the surface to match the existing one in non metallic rigid PVC concealed conduit medium grade 2 mm thick medium 20/25 mm dia with all accessories mounting all the surface of wall/ceiling/roof/etc with suitable size of 1 to 8 module metal flush boxes and including modular front cover plate & back plate for mounting modular type switches /socket/fan/ regulator etc including provision of one single core PVC insulated and unsheathed multi stranded copper cable of size 1.5 sqmm 1100 volt grade as earth continuty conductor connected to common earth dolly switch board complete all as specified and directed. Note:- surface Conduit shall be laid in celing portion only.

All as per item no 37 but one bell point controlled by one 5 Amp bell push complete

All as per item no 37 but point wiring for One 5 Amp socket point controlled by one 5 Amp switch on same board with cable 1.5 sqmm.

All as per item No 37 but point wiring for One 5 Amp socket point controlled by one 5 Amp switch independent board with cable 1.5 sqmm.

All as per item No.37 here-in-before but with two single core PVC insulated & PVC unsheathed copper conductor cable of size 2.5 Sqmm 1100 volts grade and one single core PVC insulated &PVC sheathed solid copper conductor cable of size 2.5 Sqmm 1100 Volts grade as earth continuity conductor including PVC surface / concealed conduict of size 20 to 25 mm with all accessories for 3 pin 15 Amps socket point on independent board complete all as specified and as directed.

S&F switch piano flush type 6 Amp. AC, 240 Volts one way all as directed.

S&F switch piano flush type 15 Amp. AC, 240 Volts one way all as directed.

S&F socket outlet flush type 2 in one 3 pin 5 Amp, AC, 230 volts , complete all as directed

S&F socket outlet flush type 2 in one 3 pin 15 Amp, AC, 230 volts , complete all as directed

S&F bell push flush type single pole one way, 5 Amp, AC,230 V all as directed with frame cover

S&F modular switch single pole, one way 5 Amps.

S&F modular switch bell push single pole one way 5 amp 230 volrt 6 amp 1 module comlete

S&F modular socket 6/16 amp 2/3 pin combined 2 module complete

S&F modular switch socket combination 6/16 amp 2/3 pin combined 3 module type complete

S&F ceiling Rose, surface, bakelite 65 x50 mm three terminals, AC, 230 Volts complete all as directed.

S&F angle holder backelite with insulated body AC, 230V complete all as directed.d

S&F bell electric AC, 230V, Single phase, Dingdong type complete all as directed

S&F in repair decorative box type fitting for LED tube 16 to 22 watt luminaire for 230 volt AC,for LED tube 16 watt to 22 watt complete all as specified & approved by EIC.

Taking down old unserviceable main switches/DB’s up to 100 Amps capacity fixed in wall and making good of all disturbed surfaces as per existing .

S&F sheet metal enclosure for DB’s when MCB to be used single pole and neutral double door, 4 way, AC,240 volt with 200 Amp bus bar rating complete all as directed.

S&F sheet metal enclosure for DB’s when MCB to be used single pole and neutral double door, 8 way, AC,240 volt with 200 amp bus bar rating complete all as directed.

S&F sheet metal enclosure for DB’s when MCB to be used single pole and neutral double door, 12 way, AC,240 volt with 200 Amp bus bar rating complete all as directed.

S&F sheet metal enclosure double door (MCB DB) three phase and neutral with 200 Amps rated bus bar TPN, 4 way verticall type, with provision of MCB incommer, AC, 415 Volt complete all as specified & directed.

S&F sheet metal enclosure double door (MCCB DB) three phase and neutral with 200 Amps rated bus bar VTPN, 4 way vertical type, with provision of MCCB incommer, AC, 415 Volt complete all as specified & directed.

S&F MCB single pole, 6 to 32 Amps, 240 Volts 50 HZ, 10 KA breaking capacity complete all as directed.

S&F MCB single pole, 32 to 40 Amps, 240 Volts 50 HZ, 10 KA breaking capacity complete all as directed.

S&F MCB DP 40 to 63 Amps 240 Volts, 50 Hz, 10 KA breaking capacity complete all as directed.

S&F MCB Four Pole 40 to 63 Amps 415 Volts, 50 Hz, 10 KA breaking capacity complete all as directed.

S&F MCB Four Pole 100 Amps 415 Volts, 50 Hz, 10 KA breaking capacity complete all as directed.

S&F MCCB 4 pole 100 / 125 Amp 415 volts 50 HZ 25 KA breaking capacity complete all as directed.

Supply and install industrial gong bell metallic high volume of dia size 10-12 inch standard size all as specified and directed.

M&L in repair for Submain wiring with 4 single core PVC insulated FRLS multistrand copper conductor cable of size 10 Sq mm drawn into and including non metallic heavy duty rigid PVC conduit not less than 25 mm size ISI marked ivory colour (Pressfit or similar brand ) with all conduit fittings / accessories and 2 run single core 10 Sq mm FRLS multistrand copper conductor cable as continuous earth wire complete. (Note for submain wiring: 10 run of single core cable and two run of earth wire will be measured as one length).

M&L in repair for submain wiring with two run of single core PVC insulated unsheathed multi stranded copper conductor cable of size 4 Sqmm 1100 volts grade and one run of PVC insulated unsheathed multi standed copper conductor cable of size 4 Sqmm 1100 volts grade as earth continuity conductor drawn through in and including rigid non metallic PVC concealed / surface conduit of suitable size on roof/wall/ceiling including making good the disturbed surfaces of wall etc including taking out old unserviceable burnt/damaged sub main wiring from its existing position complete all as directed by Engr-in-Charge (Note : Two run of single core cable and one run of earth wire will be measured as one length and conduit and its accessories is deemed to be included in the unit rate). Make of Cable :- Havells/ Plaza/Finolex/Polycab. Make of PVC conduit :- AKG/ Plaza/ Jindal / Finolex

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