REP OF HT OCB WITH VCB AT AYUDH VIHAR NAD (T), SPL REP OF OLD OCB WITH NEW VCB AT MRS DEF COLONY AND NSB B CAMP, PROVN LT UG CABLE AND LT PANEL FOR WTOWER AT HQ 31 WEU AND PROVN OF 07 CHEM EARTH PITS FOR EQPT AND BLDG AT THANE UNDER GE (NW) MANKHURD

Amount

Supply, Installation, testing and commissioning HT panel -11 KV, 630A , 25 KA for 3 sec, 3 Phase, 50 Hz, 3 wire totally enclosed, prewired, extensible type, indoor type, floor mounted, Horizontal isolation type vacuum circuit breaker (VCB) 630 Amp rating having rupturing capacity Max 25 KA) , Total 3 Nos outgoing feeders suitable to couple (through Bus connection only) with existing HWX switchgear at site . The offered new panels should be designed in such a way that the new panels can be coupled (through bus) with existing HWX type panels without any dummy panel ( there is no space for dummy panel) . The breaker of the new switchgear should be interchangeable with the existing HWX breaker at S/S. IEC 62271/100-200. Equipment installed at SPDC MRS Make - Schneider ( HWX) /ABB/Siemens. Following items are required for outgoing feeders - (a) Panel enclosure - 1 No (b) Mechanical inter lock and automatic safety shutter gear 1 No (c) Isolating plugs - 6 Nos (d) 11 KV, 630 Amps max 25 KA at VCB -01-No ( comprising of the following:- (i) Assembly of 3 Nos vacuum interrupters ( The make of the vacuum interrupter should be same as make of VCB), (ii) Hand and motor operated spring charged, independent starting, tripping trip free operating mechanism with manual closing and tripping push buttons. (iii) Mechanical operation counter- 1 Nos (iv) Closing and Tripping coil. -1 no (v) Breaker operated auxiliary switch 6 Nos and 6 N/C (vi) Bus bar chamber including set of 3 phase 630 Amps Almunium or Copper ( Bus Bar material similar to existing HWX switchboard at site) bus bar. - 01 Set. Vendors can visit and confirm the type of bus bar before bid submission. (e) 230 V AC Single phase, 80W rated strip type heater-2 Nos (f) Potential transformer - N/A as all three feeders are outgoing (g) Current transformer chamber incorporating 3 single phase resin cast CTs of ratio suitable for 1000 KVA transformer or sufficient rating for tie feeder . The CT ratio, suitable VA burden to be decided by OEM. The accuracy class 1 and 5P10 -01 Set (h) Rear cable termination, provision for terminating 1x3 core 120/240/300 Sqmm XLPE cable-01 No (i) Digital Ammeter - 01 No (j) Digital voltmeter - N/A (k) On/off/Trip indication - 01 No (l) 3 pahse RYB indication with lamps - 01 No (m) TNC Switch - 01 No (n) Trip circuit supervision healthy indication lamp - 01 No (o) Digital Multifunction meter Model EM 6400 Accuracy Class -1 - 1 no (p) Necessary common Power pack suitable for 3 nos panels (The 230 V AC supply is available at site) (q) Numerical relay earth fault , over current, having suitable protection setting range -01 no ( r) Temperature sensors ( battery less, wireless suitable to mount directly on live bus bar) for monitoring of bus side ( RYB phase) and cable side ( RYB) temperature on HMI - 6 nos for all three panels only . The temperature sensors should be possible on common HMI to be placed on LT door of any of any one panel. Temperature Sensor Specifications : - I. Shall be installed on conductors with direct contact to hot point, in order to achieve accuracy of +/- 2°C. II. Shall be self-powered (no auxiliary supply, no battery). III. Shall be able to communicate wirelessly. IV. Shall be approved according to IEC Standard 61010-1, IEC Standard 60068-2-6(SEP1001 - Vibration Test) and IEC 68-2-31 (SEP1002 - Drop Test), IEC 60068-2-27 (Shock Test), IEC 60721-3-3 (Shock Test), and UL Standard 61010-1. ( s) Illumination lamp with Power socket, (t) Master trip relay - 1 no (u) Aux Relays for OTI, WTI, Buchloz relay ( Applicable only on transformer feeder/s having provision for mounting the same in existing transformer) Imp Note - i) The breaker of the new switchgear should be interchangeable with the existing breaker of same rating and type available at Mankhurd S/S (ii) The new switchgear shall be OEM make and to be offered for Factory Acceptance Test at OEM factory. The system integrator, Panel builder, system house, License Partner panels are not acceptable. (iii) The make of the vacuum interrupter should be same as make of VCB. (v) The design should have top and bottom separate arms. The breaker having single arm design with vacuum bottle in horizontal position shall not be acceptable. Vendor to quote new design of switchgear where this type of arrangement is not applicable.

Supply, Installation, testing and commissioning HT panel -11 KV, 630A , 25 KA for 3 sec, 3 Phase, 50 Hz, 3 wire totally enclosed, prewired, extensible type, indoor type, floor mounted, Horizontal isolation type vacuum circuit breaker (VCB) 630 Amp rating having rupturing capacity Max 25 KA) , Total 3 Nos feeders ( one incoming and two nos Outgoing feeders) suitable to couple (through Bus connection only) with existing HWX switchgear at site . The offered new panels should be designed in such a way that the new panels can be coupled (through bus)with existing HWX type panels without any dummy panel The breaker of the new switchgear should be interchangeable with the existing HWX breaker at other S/S.IEC 62271/100-200 Equipment installed at B Camp S/S NSB Make - Schneider ( HWX) /ABB/Siemens. Following items are required for Incoming feeders - (a) Panel enclosure - 1 No (b) Mechanical inter lock and automatic safety shutter gear 1 No (c) Isolating plugs - 6 Nos (d) 11 KV, 630 Amps max 25 KA at VCB -01-No ( comprising of the following:- (i) Assembly of 3 Nos vacuum interrupters ( The make of the vacuum interrupter should be same as make of VCB), (ii) Hand and motor operated spring charged, independent starting, tripping trip free operating mechanism with manual closing and tripping push buttons. (iii) Mechanical operation counter- 1 Nos, (iv) Closing and Tripping coil. -1 No, (v) Breaker operated auxiliary switch 6 Nos and 6 N/C, (vi) Bus bar chamber including set of 3 phase 630 Amps Almunium or Copper ( Bus Bar material similar to existing HWX switchboard at site) bus bar. - 01 Set. Vendor can visit and confirm the type of bus bar before bid submission. (e) 230 V AC Single phase, 80W rated strip type heater-2 Nos, (f) Potential transformer (PT) with drawable type PT having ratio 11 KV/110V/110V and out put of 50 VA per phase with accuracy class 1.0 for metering and 50 VA , 3P for protection. as per IS-3156 complete with HT and LT HRC fuses on primary and secondary sides respectively- 01 No, (g) Current transformer resin cast CTs of ratio suitable for entire switchboard load with suitable VA burden and accuracy class 1 and 5P10 -01 Set, (h) Rear cable termination, provision for terminating 1x3 core 120/240/300 Sqmm XLPE cable-01 No, (i) Digital Ammeter - 01 No, (j) Digital voltmeter - 01 No, (k) On/off/Trip indication - 01 No, (l) 3 phase RYB indication with lamps - 01 No, (m) TNC Switch - 01 No, (n) Trip circuit supervision healthy indication lamp - 01 No, (o) Digital Multifunction meter Model EM 6400 Accuracy Class -1 - 1 No, (p) Necessary common Power pack suitable for 3 Nos panels (The 230 V AC supply is available at site), (Q) Numerical relay earth fault , over current, having suitable protection setting range -01 no, ( r) Temperature sensors ( battery less, wireless suitable to mount directly on live bus bar) for monitoring of bus side ( RYB phase) and cable side ( RYB) temperature on HMI - 6 Nos for one no incomer and 2 Nos Outgoing panels only. The temperature sensors should be possible on common HMI to be placed on LT door of any of any one panel. Temperature Sensor Specifications : - I. Shall be installed on conductors with direct contact to hot point, in order to achieve accuracy of +/- 2°C. II. Shall be self-powered (no auxiliary supply, no battery). III. Shall be able to communicate wirelessly. IV. Shall be approved according to IEC Standard 61010-1, IEC Standard 60068-2-6(SEP1001 - Vibration Test) and IEC 68-2-31 (SEP1002 - Drop Test), IEC 60068-2-27 (Shock Test), IEC 60721-3-3 (Shock Test), and UL Standard 61010-1. ( s) Illumination lamp with Power socket (t) Master trip relay - 1 no u) Hygrostat - 1 No. Following items are required for Transformer feeders or Outgoing feeder - (a) Panel enclosure - 1 No. (b) Mechanical inter lock and automatic safety shutter gear 1 No. (c) Isolating plugs - 6 Nos . (d) 11 KV, 630 Amps max 25 KA at VCB -01-No ( comprising of the following:- (i) Assembly of 3 Nos vacuum interrupters ( The make of the vacuum interrupter should be same as make of VCB), (ii) Hand and motor operated spring charged, independent starting, tripping trip free operating mechanism with manual closing and tripping push buttons. (iii) Mechanical operation counter- 1 Nos. (iv) Closing and Tripping coil. -1 No (v) Breaker operated auxiliary switch 6 Nos and 6 N/C , (vi) Bus bar chamber including set of 3 phase 630 Amps Almunium or Copper ( Bus Bar material similar to existing switchboard at site) bus bar. - 01 Set, (e) 230 V AC Single phase, 80W rated strip type heater-2 Nos, (g) Current transformer resin cast CTs of ratio suitable for 1000 KVA transformer or sufficient rating for tie feeder . The CT ratio, suitable VA burden to be decided by OEM. The accuracy class 1 and 5P10 -01 Set. (g) Rear cable termination, provision for terminating 1x3 core 120 Sqmm XLPE cable-01 No. (h) Digital Ammeter - 01 No. (i) On/off/Trip indication - 01 No. (j) 3 phase RYB indication with lamps - 01 No. (k) TNC Switch - 01 No. (l) Trip circuit supervision healthy indication lamp - 01 No. (m) Digital Multifunction meter Model EM 6400 Accuracy Class -1 - 1 no. (n) Numerical relay earth fault , over current having suitable protection setting range -01 no. (o) Illumination lamp with Power socket. (p) Master trip relay - 1 no (q) Aux Relays for OTI, WTI, Buchloz relay ( Applicable only on transformer feeder/s having provision for mounting the same in existing transformer) (r) Hygrostat - 1 no Note - i) The breaker of the new switchgear should be interchangeable with the existing breaker of same rating and type available at Mankhurd S/S (ii) The new switchgear shall be OEM make and to be offered for Factory Acceptance Test at OEM factory. The system integrator panels are not acceptable. (iii) The make of the vacuum interrupter should be same as make of VCB. (iv) The PT mounted on separate trolley behind the breaker trolley is not acceptable. The accessibility of PT behind the breaker trolley is difficult for operator. Vendor to quote new design of switchgear where this type of arrangement is not applicable. (v) The design should have top and bottom separate arms. The breaker having single arm design with vacuum bottle in horizontal position shall not be acceptable. Vendor to quote new design of switchgear where this type of arrangement is not applicable.

Supply, Installation, testing and commissioning HT panel -11 KV, 630A , 25 KA for 3 sec, 3 Phase, 50 Hz, 3 wire totally enclosed, prewired, extensible type, indoor type, floor mounted, Horizontal isolation type vacuum circuit breaker (VCB) 630 Amp rating having rupturing capacity Max 25 KA) , Total 3 nos feeders ( one incoming and two Nos Outgoing feeders) The breaker of the new switchgear should be interchangeable with the existing HWX breaker at other S/S.IEC 62271/100-200. Make - Schneider ( HWX) /ABB/Siemens/ Crompton. Incoming feeders shall comprise of following (a) Panel enclosure - 1 No. (b) Mechanical inter lock and automatic safety shutter gear 1 No. (c) Isolating plugs - 6 Nos. (d) 11 KV, 630 Amps max 25 KA at VCB -01-No ( comprising of the following:- (i) Assembly of 3 Nos vacuum interrupters ( Make of the vacuum interrupter shall be as per OEM standard). (ii) Hand and motor operated spring charged, independent starting, tripping trip free operating mechanism with manual closing and tripping push buttons. (iii) Mechanical operation counter- 1 nos . (iv) Closing and Tripping coil. -1 no. (v) Breaker operated auxiliary switch 6 Nos and 6 N/C. (vi) Bus bar chamber including set of 3 phase of capacity 630 Amps Almunium bus bar. - 01 Set (e) 230 V AC Single phase, 80W rated strip type heater-2 Nos. (f) Potential transformer (PT) with drawable type PT having ratio 11 KV/110V/110V and out put of 50 VA per phase with accuracy class 1.0 for metering and 50 VA , 3P for protection. as per IS-3156 complete with HT and LT HRC fuses on primary and secondary sides respectively- 01 No. (g) Current transformer resin cast CTs of ratio suitable for entire switchboard load with suitable VA burden and accuracy class 1 and 5P10 -01 Set. (h) Rear cable termination, provision for terminating 1x3 core 120/240/300 Sqmm XLPE cable-01 No. (i) Digital Ammeter - 01 No. (j) Digital voltmeter - 01 No. (k) On/off/Trip indication - 01 No. (l) 3 pahse RYB indication with lamps - 01 No. (m) TNC Switch - 01 No. (n) Trip circuit supervision healthy indication lamp - 01 No. (o) Digital Multifunction meter Model EM 6400 Accuracy Class -1 - 1 no. (p) Necessary common Power pack suitable for 3 nos panels. (q) Numerical relay earth fault , over current, having suitable protection setting range -01 no ( r) Temperature sensors ( battery less, wireless suitable to mount directly on live bus bar) for monitoring of bus side ( RYB phase) and cable side ( RYB) temperature on HMI - 6 nos for incomer and outgoing panels only. The temperature sensors should be possible on common HMI to be placed on LT door of any of any one panel. Temperature Sensor Specifications : - I. Shall be installed on conductors with direct contact to hot point, in order to achieve accuracy of +/- 2°C. II. Shall be self-powered (no auxiliary supply, no battery). III. Shall be able to communicate wirelessly. IV. Shall be approved according to IEC Standard 61010-1, IEC Standard 60068-2-6(SEP1001 - Vibration Test) and IEC 68-2-31 (SEP1002 - Drop Test), IEC 60068-2-27 (Shock Test), IEC 60721-3-3 (Shock Test), and UL Standard 61010-1. ( s) Illumination lamp with Power socket. (t) Master trip relay - 1 no . (u) Hygrostat - 1 No Transformer feeders or Outgoing feeder shall comprise of following:- (a) Panel enclosure - 1 No (b) Mechanical inter lock and automatic safety shutter gear 1 No, (c) Isolating plugs - 6 Nos (d) 11 KV, 630 Amps max 25 KA at VCB -01-No ( comprising of the following:- (i) Assembly of 3 Nos vacuum interrupters ( Make of the vacuum interrupter shall be as per OEM standards). (ii) Hand and motor operated spring charged, independent starting, tripping trip free operating mechanism with manual closing and tripping push buttons. (iii) Mechanical operation counter- 1 nos. (iv) Closing and Tripping coil. -1 no. (v) Breaker operated auxiliary switch 6 Nos and 6 N/C. (vi) Bus bar chamber including set of 3 phase 630 Amps Almunium or Copper ( Bus Bar material similar to existing switchboard at site) bus bar. - 01 Set. (e) 230 V AC Single phase, 80W rated strip type heater-2 Nos. (g) Current transformer chamber incorporating 3 single phase resin cast CTs of ratio suitable for 1000 KVA transformer or sufficient rating for tie feeder . The CT ratio, suitable VA burden to be decided by OEM. The accuracy class 1 and 5P10 -01 Set. (g) Rear cable termination, provision for terminating 1x3 core 120 Sqmm XLPE cable-01 No. (h) Digital Ammeter - 01 No. (i) On/off/Trip indication - 01 No. (j) 3 phase RYB indication with lamps - 01 No. (k) TNC Switch - 01 No. (l) Trip circuit supervision healthy indication lamp - 01 No. (m) Digital Multifunction meter Model EM 6400 Accuracy Class -1 - 1 No. (n) Numerical relay earth fault , over current having suitable protection setting range -01 No ( o) Illumination lamp with Power socket. (p) Master trip reay - 1 No. (Q) Aux Relays for OTI, WTI, Buchloz relay ( Applicable only on transformer feeder/s having provision for mounting the same in existing transformer). R) Hygrostat - 1 no . Note - i) The breaker of the new switchgear should be interchangeable with the existing breaker of same rating and type available at Mankhurd S/S (ii) The new switchgear shall be OEM make and to be offered for Factory Acceptance Test at OEM factory. The system integrator panels are not acceptable. (iii) The design should have top and bottom separate arms. The breaker having single arm design with vacuum bottle in horizontal position shall not be acceptable. Vendor to quote new design of switchgear where this type of arrangement is not applicable.

Renewal of broken/wornout earth pit including M & L for earthing chemical with copper plated 50 mm dia pipe 3 mtr long (100 microns) including Electrodite 50 Kg buried directly in ground including earth bore hole work (earth bore not less than 3 Mtr deep below normal ground level and connected to copper earth strip of size 20×3 mm by means of copper nuts bolts with washers and connected as per following specifications complete all as directed by Engineer-in-Charge. (a) Product Model: ASEEL 19 CP, 3 meter long (Copper Plated) – 100 microns . Fast Electrode, Model FE 80 mm 3 mtr (Pure Copper Single Pipe), Outer Dia is 80 mm with a wall thickness of 2 mm, Inner Dia is 26 mm with a wall thickness of 2.6 mm, Overall Length is 3000 mm, External Corrosion Protection: Copper Plated (100+ microns), Internal Corrosion Protection: In addition to Copper Plated (100+ microns), a ground breaking corrosion resistant Crystalline Conductive Compound is filled and compacted in the cavity within the pipes to enhance the electrodes performance. Conforms to IS: 3043 - 1987 i.e., Code Of Practice For Earthing (+ 10%) variations in dimensions applicable. (b) Electrodite backfill: Fast Electrode Earth Enhancement Compound, Manufactured using Eco - Friendly minerals, Blended homogeneously with conductive carbon(s), Resistivity: < 5 ohm-metre (In ideal moist conditions); > 5 ohm-metre (Dry Conditions), Ph Value: 7.0 - 8.5, High water retention capacity, Hygroscopic, Ionic & Electronic conduction, Swells when it comes in contact with water thereby engaging constant contact between the electrode surface & soil which is a crucial aspect in the performance of an earthing system. Packing Size : 2 Bags of 25 kilograms, Recommended for normal soil conditions. Confirms to IS : 3043 – 1987. (c) Installation of earthing with bore well machine complete for bore exceeding upto 4.5 meter below ground level complete all as specified and directed by Engr-in-Charge.

S&F HT rubber insulsted mat suitable for 11KV panel 3 mm thickness Claas'B' having fire retardant, insulation water resistance of size 1m X 10m X 3mm confirming ISI 15652:2006

Supply HT Earth discharge rod suitable for 11 KV equipped with FRP/rubber insulator to increase creepage distance, Excellence dielectric strength, Fiberglass tube manufactured from high quality epoxy resin including canvas bag confiming ISI standard

S&F cable root indicator for HT cable madeup of cast iron with dimention of not less than 100 mm dia, 45 cm height having ISO mark 9001:2000 including with proper PCC work

Cable jointing kit end termination for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm complete all as specified and directed. Make: Birla 3M/ M Seal or equivalent

Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm complete all as specified and directed. Make: Birla 3M/ M Seal or equivalent

Supply and fix cable straight joint kit heat shrinkable Cable jointing kit for 1.1 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3.5/4 core XLPE armoured aluminium conductor cable of size 95 Sqmm complete all as specified and directed.

Supply, laying and testing in trenches, road crossing, through pipes, ducts etc, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured,electric power cable (heavy duty ) with aluminium conductor, 11000 volts grade (earthed), cross sectional area 120 Sqmm X 3 core, complete all as specified and directed. Make: KEI/ Polycab/ Grandley

Supply, laying and testing in trenches, road crossing, through pipes, ducts etc, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured,electric power cable (heavy duty ) with aluminium conductor, 1100 volts grade (earthed), cross sectional area 95 Sqmm X 3.5 core, complete all as specified and directed. Make: KEI/Polycab/Havells/Benlo

S&F high power torch strong beam suitable for long range, single high power LED with 2 mode light switch having USB type charging port. Operating on 3.7 V DC, battery supply >4000 mAh Make: Phillips/ Everday/ or equivelent to Phillips

Excavation in trenches not exceeding 1.5 M wide and n.exc 1.5 M in depth for cable etc and not exceeding 10 Sqm on plan and 1.50m in depth for independent holes etc, getting out in soft/loose, comnplete all as specified and directed.

Returning, filling in including spreading, levelling, watering and well ramming in layers approved earth not exc 25 cm thick, complete all as specified and directed.

Removing excavated material (soil/earth) not exc 50 M and depositing where directed at a level not exceeding 1.5 M above the starting point, complete all as specified and directed.

M & L for sand cushioning by spreading in trenches crushed sand by gently by punning down manually as in cable protection all as specified and as directed by Engineer -in-charge.

Supply & laying reinforced precast factory made concrete cable cover, class LV, type -I Flat size 250mm x 150mm x 40mm complete all as specified and directed.

M&L for cutting existing road/hard and dence soil not exc 45x50 cm in wide & depth getting out excaveted materials for laying GI tube; returning filling & well rammin watering finish surface 10 cm from top using PCC 1:3:6 not less than 4 inch thick; including removal of surplas soil all as per directed.

S&F of HDPE pipe 50 mm dia, PN-10 for laying in ground, road crossing etc for cable protection including necessary fittings, clamps for supports, etc all as. Make-Prayag/ Sudhakar/Plasto/ Prince

M&L for earthing using GI earthing strip 32 x 6mm complete with galvanised steel earth plate electode 600mmx600mmx6mm thick buried directly in ground, earth pit not less than 2.25 meters deep below ground level connection to and including GI strip of size 32x6mm to the extend 7.5 mtr as earth lead by means of GI bolts, Nuts etc. with provision of charcoal and salt all as per electrical plate No 3 of SSR Part I including water arrangement with GI Pipe 20 MM dia (medium Grade), earth lead protection pipe 50mm madium grade with bends, elbow etc. from earth plate to test point, excavation and earth work returning, filling, ramming and removing of soil to distance not exc 50mtr, make good to match with existing surface making PCC pit (Earth chamber) having internal size 30cm x 30cm x 30cm and outer size 60cm x 60cm x 60cm with RCC reinforced cover 50mm thick with one lifting handle made of 8mm dia MS bar funnel wie mesh and testing on completion including making test point on wall as per SSR specification all as specified and directed.

M & L for earthing chemical with copper plated 50 mm dia pipe 3 mtr long (100 microns) including Electrodite 50 Kg buried directly in ground including earth bore hole work (earth bore not less than 3 Mtr deep below normal ground level and connected to copper earth strip of size 20×3 mm by means of copper nuts bolts with washers and connected as per following specifications complete all as directed by Engineer-in-Charge. (a) Product Model: ASEEL 19 CP, 3 meter long (Copper Plated) – 100 microns . Fast Electrode, Model FE 80 mm 3 mtr (Pure Copper Single Pipe), Outer Dia is 80 mm with a wall thickness of 2 mm, Inner Dia is 26 mm with a wall thickness of 2.6 mm, Overall Length is 3000 mm, External Corrosion Protection: Copper Plated (100+ microns), Internal Corrosion Protection: In addition to Copper Plated (100+ microns), a ground breaking corrosion resistant Crystalline Conductive Compound is filled and compacted in the cavity within the pipes to enhance the electrodes performance. Conforms to IS: 3043 - 1987 i.e., Code Of Practice For Earthing (+ 10%) variations in dimensions applicable. (b) Electrodite backfill: Fast Electrode Earth Enhancement Compound, Manufactured using Eco - Friendly minerals, Blended homogeneously with conductive carbon(s), Resistivity: < 5 ohm-metre (In ideal moist conditions); > 5 ohm-metre (Dry Conditions), Ph Value: 7.0 - 8.5, High water retention capacity, Hygroscopic, Ionic & Electronic conduction, Swells when it comes in contact with water thereby engaging constant contact between the electrode surface & soil which is a crucial aspect in the performance of an earthing system. Packing Size : 2 Bags of 25 kilograms, Recommended for normal soil conditions. Conforms to IS : 3043 – 1987. (c) Installation of earthing with bore well machine complete for bore exceeding upto 4.5 meter below ground level complete all as specified and directed by Engr-in-Charge.

Supply & Fix copper strip of size 20 X 3 mm duly covered, fixed on porcelain insulators along the wall / roof / ceiling etc complete all as directed. Note : (i) Cost of Porcelain insulators and screw shall be of non-corrosive type and cost is deemed to be included in the quoted rate of the job. (ii) Gap for fixing of support insulator shall not be more than 35cm from one onother.

OM POWER SYSTEMS (BID ID -3227729)