REPAIR MAINT REPLACEMENT OF VARIOUS EARTHING INFRASTRUCTURE AND CERTAIN MISC EXTERNAL E M WORKS

Amount

Material and labour for Testing of earth resistance value from earthing pit test terminal point and write in/ on existing identification board complete all as specified and as directed.

The following items are deemed to be inclusive of quoted rate :- (i) The above job shall be carried out by a trained technician having ITI in electrical and well known regarding earthing test. Documantary proof of the education of tradesman shall be produced, before commencement of work.

(ii) The aforsesaid test will be carried out in presence of user and MES represnetative.

(iii) Two Party (consisting 2 x 1 No. Technician with 2 x 1 No. Helper) will report every morning at 9 AM to JE E/M for daily earth testing.

(iv) Earth Resistance Tester will be provided by the Contractor. (Tester should be caliberated from Authorised Company/ Lab).

(v) Contractor will be responsible for pouring of water in the Earth Pits Weekly at their own arrangement with Water Tanker, etc. (water will be provided by the contractor at his own arrangement and nothing extra will be admissible).

(vi) Contractor will be responsible for marking of Earth check date and due date on existing Plate with paint as directed by Engineer-in-Charge.

(vii) Contractor will be responsible for cleaning of bushes and grass all around upto 1.50 Metre Area of existing Earth Pit with tightening of Strip.

Supply only common salt commercial in trenches to improve the ER value of existing earth pits, complete all as specified and as directed.

Supply only charcoal dust/Breeze in trenches to improve the ER value of existing earth pits, complete all as specified and as directed.

Material and labour for magnesium sulphate (MgSO4) for improvement of earthing resistivity, complete all as specified and directed.

Material and labour for Powder Earthing Backfill Compound, Grade Standard for improvement of earthing resistivity and to increase the absorption of moisture around the earthing electrode, complete all as specified and directed.

Supply and Fix in repairs Bib Tap of 15 mm dia standard of PTMT any colour high pressure screwed for iron pipe (Minimum weight 90 gms ), complete all as specifed and directed. Make Prayag, Princes, Supreme

Supply and fixing in repair 40 mm bore galvanised steel water tubing medium grade with all fitting laid in trenches/road cutting, complete all as specified anfd directed .

Supply and fixing in repair 20 mm bore galvanised steel water tubing medium grade with all fitting fixed to wall and ceiling or laid in floors etc, complete all as specified and directed.

Material and labour for fixing earth indicators made out of 3 mm thick MS sheet of size 200mm x 300mm duly fixed in MS angle iron 25mmx25mm of 450 mm long to be fixed to ground by means with necessary cement concrete and painting with two coats of synthetic enamel paint over a coat of red oxide primer, writing earth reading and connected items like painting of panel etc, and necessary excavation and earth work including taking down old, complete all as specified and as directed.

Taking down existing GI earthstrip 25x3mm thick as earthing lead with its accessories and re fixing to wall/roofs etc. drawn in conduit/GI pipe etc all as specified and directed. Note:- Unit rate is deemed to be included for old broken insulators/ clamps to replace with new insulators of existing size from site and making good disturbed surfaces of floors/walls/ceiling etc complete all as directed.

Material and labour for Copper strip 20 x 3mm thick as earthing lead fixed to wall/roofs etc including taking down existing one, complete all as speified & directed. NOTE : All Joints should be joined by Exothermic Welding or Brazing.

Supply and fixing in replacement of aluminium strip 25x3mm fixed with epoxy based insulator for down conductor air terminal network including drilling two Nos holes at each joint, one set of lead washers between strips, two sets GI nut and bolt, gutties, screws etc, complete all as speified & directed.

Material and labour for Brazing of copper/Aluminium/GI strip for continuity, complete all as specified and as directed.

Supply and fixing in repair test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 Nos. 8mm dia 25mm long hexagonal. head screw, complete all as specified and directed.

Repairing and maintenance of old existing earth pit by taking out carefully earth plate, watering pipe, earth lead protection pipe and re-buried the same after removing sludge from the plate & pipes including re-connection/brazing the plate and strip, whichever is required at site (Earth pit not less than 2.25 mtr deep below normal ground level ) with top edge of earth plate not less than 1.5 metres below normal ground level,complete all as specified and directed including PCC 1:3:6 type C1 pit with cover of RCC 1:2:4 type B1,reinforced with welded steel wire fabric not less than 4 kg per Sqmtr with handle and angle iron frame,watering arrangment with 20 mm bore GI medium grade pipe ISI marked, GI funnel with GI mesh,filling with mixture of common salt and charcoal,necessary excavation, refilling, removing away soil and earth work in any type of soil including test point, testing and commissioning, complete all as specifed and as directed. Note : GI Funnel, brazing, mixture of salt/char coal/MgSO4 shall be measured and paid separately under releavant items.

Taking down unsv funnel of any type and size Supply and fixing in repair GI funnels for earthing, complete all as specified and as directed.

Material and labour in repairs for Galvanised Earth strip of size 25 x 6 mm fixed on proper post insulator at the instrument end, complete all as per specified and as directed.

Material and labour in repairs Galvanised iron Earth strip of size 32 x 6 mm fixed on proper post insulator at the instrument end complete all as per specified and as directed.

Excavation in trenches not exceeding 1.5 mtr in width and not exceeding 1.5 mtr in depth for laying of cables up to proper level and laying of pipelines etc in soft/loose soil, complete all as specified and directed.

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

Removing surplus excavated material (soil) from excavation not exc 50 meter and depositing where directed at a level not exc 1.5 meter above the starting point, complete all as specified and directed.

Material and labour for Spreading ribbed soil in trenches as in cable cushioning all as per IS 1255-1983, complete all as specified and directed. Note :- (i) Excavated approved soil shall be ribbed by using sieve to separate composite particles etc. as per IS and refilling in trenches before laying of cable 8 CM and 15 CM after laying of cable. This is then gently punned down to a depth of 10 cm above the top of upper most cable (ii) For the purpose of measurement only punned thickness shall be considered for payment.

Material and labour for well burnt class ‘B’ bricks as mechanical protection to under ground cables laying with length of the bricks equal to the width of the trench, complete all as specified and directed.

Supply and laying in repair GI pipe light grade for cable protection of size 100 mm bore with fittings, complete all as specified and directed.

Material and labour for Cutting existing road/PCC/Drain for laying of GI or any type of pipe including necessary earth work, excavation exc 600mm depth but not exc 1mtr depth, 800 mm wide including making good existing surface with 150 mm thick PCC 1:2:4 type B1 using 20mm graded stone aggregate, complete all as specified and directed. Note :- The tenderer shall take into consideration for following points while quoting rate for this item and the unit rate is deemed to be inclusive for :- (i) Earth work and excavation in any type of soil (ii) Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc. 25 cm thick complete all as specified and as directed. (iii) Removing excavated material to out side MD. (iv) Laying of any type/any bore of pipe in trenches including taking down. Supply of pipe shall be measured and paid separately (v) 150 mm thick PCC 1:2:4 type B1 using 20mm graded stone aggregate as in road to make good existing disturbed surfaces.

Material and labour in repair for 3 ½ core 240 Sqmm XLPE insulated heavy duty electric cable with aluminium multi stranded conductor 1100 volts grade served with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall sheathed laying in trenches/cable ducts, fixed to wall/pole, complete all as specified and directed. Make : Havells, Polycab, RPG Asian

Material and labour in repair for 3 ½ core 185 Sqmm XLPE insulated heavy duty electric cable with aluminium multi stranded conductor 1100 volts grade served with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall sheathed laying in trenches/cable ducts, fixed to wall/pole, complete all as specified and directed. Make : Havells, Polycab, RPG Asian

Material and labour in repair for making straight through joint with suitable jointing kit consisting of water proof adhesives for UG cable of size 3.50 core 185 Sqmm to 240 Sqmm, complete all as specified and directed..

Disconnecting of burnt/ damaged cables from panels/ junction boxes etc, cutting out the burnt out ends, making new end joints by supply and fixing new aluminium lugs/ insulation tapes etc and reconnecting using new nuts/ bolts/ washer etc and restoring three phase and neutral in the junction box, complete all as specified and as directed for the cable size from 185 Sqmm to 240 Sq mm 3.5 core of LT underground armoured cables. Note :- Earth work required for extending the incoming/ outgoing cable in junction box/ panel board etc shall deemed to be included in the unit rate quoted.

Supply, installation, commissioning and testing of factory assembled, floor mounted, free standing type tested LT Feeder pillar panels, with canopy, as per electrical specifications for outdoor installation to be made of IP65 Polycarbonate modular enclosures. The enclosures made of polycarbonate, should be weather/vermin proof, anti -acid, anti-corrossive, UV resistance in accordance with IEC 61439-1, fire retardant and self extingushing in accordance with IEC 60695-2-11, UL subject 94 for flammability V-0, should pass glow wire test for 960 degree in accoardance with 60695-2-11.Degree of protection against mechanical load should be IK08 (5 Joule) in accordance with IEC 62262,IP65 in accordance with IEC-60529 and IEC- 60439-1, should have dielectric properties, RoHS compliant & Halogen free. The manufacturer of boards/panels shall submit a copy of type test reports as per above mentioned norms either from UL/ERDA/CPRI/NABL labs in india.The panel should be modular and compartmentalized in construction with opaque and transparent doors, properly tightened to base with thremoplastic screws having sealing gaskets of extruded silicon rubber to withstand adverse weather effects. The depth of modular enclosure should be minimum 200mm for air circulation & to minimize temp rise. Panel should be fitted with one No. polycarbonate IP 65, 9 W LED translucent bulk head luminaire color temp not less than 6500K, PF > 0.95 under canopy for easy maintenance. Panel should be fitted outside with one No. of 16 A 3 Pole IP65 industrial socket and 01 No. of 32A 5P IP 65 industrial socket. 3 Phase and neutral 600 Amp current carrying capacity of Aluminium bus bar insulated with colour coded heat shrinkable sleeves with SMC/DMC insulators,complete with the following swtich gears and mounting the panel board on ground with PCC (1:3:6) type C-1 using 20 mm graded crushed stone aggregate for bedding upto a height of 45 CM above ground level, including dismanting and taking out U/s LT panel board and reconnecting existing LT UG Cable with new panel board all as directed :-

(a) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 400 Amps 36 KA - 01 No. (Incomer). (b) Change over switch 400A, 4P front operated - 01 No. (c) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 160 Amps 25 KA - 02 Nos (O/G). (d) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 125 Amps 25 KA - 02 Nos (O/G). (e) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 100 Amps 10 KA - 01 No (O/G) (f) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 63 Amps 10 KA - 01 No (O/G) (g) MCB SPN of 240 V of capacity 40 Amps 10 KA - 01 No. (h) Multifunction Meter (V,I,PF) with suitable capacity of CT's - 01 No. (j) Indicating lamp (R-Y-B) set LED type with backup MCB for 3 Phase Supply - 01 set. (k) Space for spare feeder - 01 No. Note :- (i) The Contractor shall submit the drawing for approval of GE before executing the work. (ii) Insulators, bus bar sleeves, lugs, gland etc including complete wiring with suitable size of copper wire are all inclusive in unit quoted rate. (iii) Make of Switch gear : Schneider/L&T/C&S. (iv) MCCB should be ICu =100% ICs. (v) Make of LT Panel/FPB shall be as mentioned in list of makes (PS).

Material and labour for Surface excavation n.exc 30 cm deep and averaging 15 cm deep in hard /dense soil and getting out, complete all as specified and directed.

Supply and fix in repair MCCB of capacity 250 Amp 415 Volts 4 pole with breacking capacity 36 KA in LT panel boards / feeder pillar boxes including disconnecting existing from electric connection including necessary connected fastners, burnt cables, accessories like spreader ,cages all as per site requirement/existing make/model, complete all as specified and directed. Make : Legrand/ Indo Asian/ L&T.

Material and labour for 4 core 10 Sqmm XLPE insulated heavy duty electric cable with aluminium multi stranded conductor 1100 volts grade served with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall sheathed laying in trenches/cable ducts, fixed to wall/pole, including taking down of unserviceable one complete all as specified and directed. Make:- Havells/ Polycab/ RPG Asian Note - Earthwork and bricks to be paid separately in respective items.

Supply, installation, commissioning and testing of factory assembled, floor mounted, free standing type tested LT Feeder pillar panels, with canopy, as per electrical specifications for outdoor installation to be made of IP65 Polycarbonate modular enclosures. The enclosures made of polycarbonate, should be weather/vermin proof, anti -acid, anti-corrossive, UV resistance in accordance with IEC 61439-1, fire retardant and self extingushing in accordance with IEC 60695-2-11, UL subject 94 for flammability V-0, should pass glow wire test for 960 degree in accoardance with 60695-2-11.Degree of protection against mechanical load should be IK08 (5 Joule) in accordance with IEC 62262,IP65 in accordance with IEC-60529 and IEC- 60439-1, should have dielectric properties, RoHS compliant & Halogen free. The manufacturer of boards/panels shall submit a copy of type test reports as per above mentioned norms either from UL/ERDA/CPRI/NABL labs in india.The panel should be modular and compartmentalized in construction with opaque and transparent doors, properly tightened to base with thremoplastic screws having sealing gaskets of extruded silicon rubber to withstand adverse weather effects. The depth of modular enclosure should be minimum 200mm for air circulation & to minimize temp rise. Panel should be fitted with one No. polycarbonate IP 65, 9 W LED translucent bulk head luminaire color temp not less than 6500K, PF > 0.95 under canopy for easy maintenance. Panel should be fitted outside with one No. of 16 A 3 Pole IP65 industrial socket and 01 No. of 32A 5P IP 65 industrial socket. 3 Phase and neutral 150 Amp current carrying capacity of Aluminium bus bar insulated with colour coded heat shrinkable sleeves with SMC/DMC insulators,complete with the following swtich gears and mounting the panel board on ground with PCC (1:3:6) type C-1 using 20 mm graded crushed stone aggregate for bedding upto a height of 45 CM above ground level, including dismanting and taking out U/s LT panel board and reconnecting existing LT UG Cable with new panel board all as directed :-

(a) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 100 Amps 10 KA - 01 No (Incomer). (b) Change over switch 100A, 4P front operated - 01 No. (c) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 63 Amps 10 KA - 04 Nos (O/G). (d) MCB SPN of 240 V of capacity 40 Amps 10 KA - 01 No. (e) Multifunction Meter (V,I,PF) with suitable capacity of CT's - 01 No. (f) Indicating lamp (R-Y-B) set LED type with backup MCB for 3 Phase Supply - 01 set. (g) Space for spare feeder - 01 No. Note :- (i) The Contractor shall submit the drawing for approval of GE before executing the work. (ii) Insulators, bus bar sleeves, lugs, gland etc including complete wiring with suitable size of copper wire are all inclusive in unit quoted rate. (iii) Make of Switch gear : Schneider/L&T/C&S. (iv) MCCB should be ICu =100% ICs. (v) Make of LT Panel/FPB shall be as mentioned in list of makes (PS).

Material and labour in repair for 3 ½ core 150 Sqmm XLPE insulated heavy duty electric cable with aluminium multi stranded conductor 1100 volts grade served with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall sheathed laying in trenches/cable ducts, fixed to wall/pole, complete all as specified and directed. Make : Havells, Polycab, RPG Asian

Material and labour in repair for 3 ½ core 120 Sqmm XLPE insulated heavy duty electric cable with aluminium multi stranded conductor 1100 volts grade served with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall sheathed laying in trenches/cable ducts, fixed to wall/pole, complete all as specified and directed. Make : Havells, Polycab, RPG Asian

Material and labour for Boring of holes under road, pavement, hard standings by trenchless technology using ultra sound technique and necessary machine including HDPE pipes of 100 mm dia suitable for 0.4 Mpa working pressure, complete all as specified and directed.

Supply and laying in repair of GI pipe light grade for cable protection of size 80mm bore with fittings, complete all as specified and directed.

Material and labour for making straight through joint with suitable jointing kit consisting of water proof adhesives for UG cable of size 3.50 core 120 Sqmm to 150 Sqmm, complete all as specified and directed.

Disconnecting of burnt/ damaged cables from panels/ junction boxes etc, cutting out the burnt out ends, making new end joints by supply and fixing new aluminium lugs/ insulation tapes etc and reconnecting using new nuts/ bolts/ washer etc and restoring three phase and neutral in the junction box, complete all as specified and as directed for the cable size from 120 Sqmm to 150 Sq mm 3.5 core of LT underground armoured cables. Note :- Earth work required for extending the incoming/ outgoing cable in junction box/ panel board etc shall deemed to be included in the unit rate quoted.

Supply, installation, commissioning and testing of factory assembled, floor mounted, free standing type tested LT Feeder pillar panels, with canopy, as per electrical specifications for outdoor installation to be made of IP65 Polycarbonate modular enclosures. The enclosures made of polycarbonate, should be weather/vermin proof, anti -acid, anti-corrossive, UV resistance in accordance with IEC 61439-1, fire retardant and self extingushing in accordance with IEC 60695-2-11, UL subject 94 for flammability V-0, should pass glow wire test for 960 degree in accoardance with 60695-2-11.Degree of protection against mechanical load should be IK08 (5 Joule) in accordance with IEC 62262,IP65 in accordance with IEC-60529 and IEC- 60439-1, should have dielectric properties, RoHS compliant & Halogen free. The manufacturer of boards/panels shall submit a copy of type test reports as per above mentioned norms either from UL/ERDA/CPRI/NABL labs in india.The panel should be modular and compartmentalized in construction with opaque and transparent doors, properly tightened to base with thremoplastic screws having sealing gaskets of extruded silicon rubber to withstand adverse weather effects. The depth of modular enclosure should be minimum 200mm for air circulation & to minimize temp rise. Panel should be fitted with one No. polycarbonate IP 65, 9 W LED translucent bulk head luminaire color temp not less than 6500K, PF > 0.95 under canopy for easy maintenance. Panel should be fitted outside with one No. of 16 A 3 Pole IP65 industrial socket and 01 No. of 32A 5P IP 65 industrial socket. 3 Phase and neutral 250 Amp current carrying capacity of Aluminium bus bar insulated with colour coded heat shrinkable sleeves with SMC/DMC insulators,complete with the following swtich gears and mounting the panel board on ground with PCC (1:3:6) type C-1 using 20 mm graded crushed stone aggregate for bedding upto a height of 45 CM above ground level, including dismanting and taking out U/s LT panel board and reconnecting existing LT UG Cable with new panel board all as directed :-

(a) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 160 Amps 25 KA - 01 No. (Incomer). (b) Change over switch 160A, 4P front operated - 01 No. (c) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 125 Amps 25 KA - 01 No. (O/G). (d) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 100 Amps 10 KA - 01 No. (O/G). (e) MCCB with thermal magnetic release 4 Pole, 415 V of capacity 63 Amps 10 KA - 01 No. (O/G). (f) Multifunction Meter (V,I,PF) with suitable capacity of CT's - 01 No. (g) Indicating lamp (R-Y-B) set LED type with backup MCB for 3 Phase Supply - 01 set. (h) Space for spare feeder - 01 No. Note :- (i) The Contractor shall submit the drawing for approval of GE before executing the work. (ii) Insulators, bus bar sleeves, lugs, gland etc including complete wiring with suitable size of copper wire are all inclusive in unit quoted rate. (iii) Make of Switch gear : Schneider/L&T/C&S. (iv) MCCB should be ICu =100% ICs. (v) Make of LT Panel/FPB shall be as mentioned in list of makes (PS).

Dismantling /taking down old unserviceable ACSR conductor (weasel ) of any size from LT poles/over head electric line after disconnecting from insulators complete all as specified and as directed.

S & F for ACSR conductor of any size and type including stretching, providing jumper, making bus bar and binding over insulator with aluminium binding wire complete all as specified and as directed.

Restrianing for ACSR conductor of any type and size including stretching, providing jumper, making bus bar and binding over insulator with aluminium binding wire complete all as specified and as directed .

M & L for compression / crimping type sleeve joints for jointing of ACSR conductor for jumper connection of above 12 mm dia of overall ACSR conductor including treatment with conducting jelly all as reqd as in repairs complete all as specified and as directed .

M & L Insulating spacer 4 way between overhead ACSR conductor including taking down of old one complete all as specified and as directed

M & L Insulating spacer 2 way between overhead ACSR conductor including taking down of old one complete all as specified and as directed

Supply, installation, testing & commissioning of maintenance free chemical earthing system comprising of 17mm dia copper bonded rod 3 mtr long horizontally pre welded T-terminal rod with provision for connection size of 50 x 150mm long, 6mm thickness with equal space either side, with 12mm dia hole of 02 numbers each on either side of the terminal clamp with 250 microns (average) coating thickness, tested and certified by CPRI India alongwith 50 Kg earth energizer compound and 10 litres earth resistance reducing liquid. The earthing energizer compound and resistance reducing earthing liquid shall be tested as per IEC-62561-7 read with ASTM G57-06, CI 3.4 A by any NABL accredited lab. The above mentioned rod shall be installed in 4-6 inch bore, 12 feet depth with a distance of minimum 3 meters between each installation including taking down existing one, complete all as specified and directed. Make : Model HTSP 317 of safeTrode or equivalent in OBO Betterman/ FURSE/ERICO.

The quoted rate shall also deemed to be included the following :- (i) Prior to installation of maintenance free chemical earthing, soil resistivity test to be carried out at the location where earthing work to be done in presence of Engr-in- Charge/JE (E/M),user and the report has to submit to Garrison Engineer with recommendation of manufacturer, if required additional interconnection of earthing (not more than 08 number of earthing) to achive earth result less than 1 Ohms. The arrangement done for soil resistivity testing and submission of report with recommendation deemed to be included in the quoted rate.

(ii) The description/ size/ qty of items mentioned in above are for indicating only however qty/ size may vary at site condition to maintain the earth resistance 1 ohm. The contractor shall quote rate by considering all factors.

(iii) Rate of earth energizer compound of 25 Kg of 02 bags and earth resistance reducing liquid 10 litre per cane for each pit deemed to be included in the quoted rate.

(iv) Resistivity of earth energizer compound and resistance reducing earthing liquid shall be certified by any NABL accredited lab carried out as per IEC-62561-7 read with ASTMG57-06, CI-3.4A and the certificate of same shall be submitted by the contractor before commencement of work.

(v) Earth enhancing material should not leach into the adjacent soil or underground water channels and its PH value should be in neutral range complete all as specified and as directed. It should solidify when mixed with water and set like concrete.

(vi) Copper strip of size 20 x 3 mm shall be fixed on proper post insulator at the instrument end ( copper strip upto 7.5 RM shall be considered in unit quoted rate and extra will be measured and paid separately).

(vii) Testing of earth shall be carried out in presence of departmental and user representative and report shall be submitted to Garrison Engineer duly signed by all concerned.

(viii) Earth resistance tester will be provided by the contractor. Tester should be calibrated from authorised company/ lab.

(ix) Earthing shall be tested after completion of work by the contractor in presence of Engr-in-charge, user and proper record shall be maintained duly signed by all concerned. After testing if the desired earth resistance of less than 1 Ohm is not obtained, the earthing will be redone at no extra cost to Govt. till desired result is obtained.

(x) The contractor shall give a written guarantee of minimum three years for maintaining the earth resistance less than 1 Ohm after certified date of completion.

(xi) No further maintenance or periodic watering or recharge shall be required in earthing during its guarantee period of over 03 years in all type of soil including soft/ disintegrated or hard rock.

(xii) During the guarantee period, if earth resistance is not maintained less than 1 ohm the contractor has to redo or rectify at no extra cost to Govt till desired result is maintained.

(xiii) A security deposit of value equal to 2.5 % of the rate quoted for chemical earthing for each earthing shall be retained from payment due to the contractor from final bill for the guarantee period.

(xiv) The electrode shall carry manufacturer's name .

(xv) The connection clamp shall be permanentlly welded to the copper bounded rod to avoid any kind of connectivity loss,.The pre-welded copper bounded rod shall not need any additional clamp for termination.

(xvi) The acceptable earth resistance at earth busbar/ test point shall not be more than 0.1 ohm.

(xvii) Earth work such as auguring and making good the surrounding area shall carried out in any type of soil.

(xviii) The contractor shall submit CPRI India certified document for copper bounded rod to ensure genuineness of material.

(xix) Sign board of mild steel sheet 2 mm thick duly painted with two coats of synthetic enamel paint over a coat of red oxide Zinc chrome primer showing result of earthing shall be fixed near the earth pit after completion as directed by engr -in- charge.

S&F in repair copper strip 20 x 3mm thick as earthing lead fixed to wall/roofs etc including taking down existing one, complete all as specified and directed. Note : - All Joints should be joined by Exothermic Welding or Brazing.

Earth pit cover made of heavy duty poly plastic of high grade polypropylene tested and certified by any NABL accredited lab for load bearing capacity not less than 7.2 tonnes with top dia not less than 250mm, bottom dia not less than 330 mm and height not less than 260 mm for each electrode pit, complete including taking down, complete all as specified and directed. Make : Model SEPC 250 of SAFE TRODE/ Electrogrip Model/ EGTEK3LC of ISG Global or equivalent in OBO Betterman/ ERICO. Note :- The contractor shall submit load bearing capacity certificate from the manufacturer.

Supply and fix in repair MCCB of capacity 400 Amps 415 Volts 4 pole with breaking capacity 36 KA in LT panel boards / feeder pillar boxes including disconnecting existing from electric connection including necessary connecting fastners, burnt cables, accessories like spreader ,cages etc all as per site requirement/existing make/model, complete all as specified and directed. Make : Legrand/ Indo Asian/ L&T.

Supply, installation, commissioning and testing of factory assembled, floor mounted, free standing type tested LT Feeder pillar panels, with canopy, as per electrical specifications for outdoor installation to be made of IP65 Polycarbonate modular enclosures. The enclosures made of polycarbonate, should be weather/vermin proof, anti -acid, anti-corrossive, UV resistance in accordance with IEC 61439-1, fire retardant and self extingushing in accordance with IEC 60695-2-11, UL subject 94 for flammability V-0, should pass glow wire test for 960 degree in accoardance with 60695-2-11.Degree of protection against mechanical load should be IK08 (5 Joule) in accordance with IEC 62262,IP65 in accordance with IEC-60529 and IEC- 60439-1, should have dielectric properties, RoHS compliant & Halogen free. The manufacturer of boards/panels shall submit a copy of type test reports as per above mentioned norms either from UL/ERDA/CPRI/NABL labs in india.The panel should be modular and compartmentalized in construction with opaque and transparent doors, properly tightened to base with thremoplastic screws having sealing gaskets of extruded silicon rubber to withstand adverse weather effects. The depth of modular enclosure should be minimum 200mm for air circulation & to minimize temp rise. Panel should be fitted with one No. polycarbonate IP 65, 9 W LED translucent bulk head luminaire color temp not less than 6500K, PF > 0.95 under canopy for easy maintenance. Panel should be fitted outside with one No. of 16 A 3 Pole IP65 industrial socket and 01 No. of 32A 5P IP 65 industrial socket. 3 Phase and neutral 200 Amp current carrying capacity of Aluminium bus bar insulated with colour coded heat shrinkable sleeves with SMC/DMC insulators,complete with the following swtich gears and mounting the panel board on ground with PCC (1:3:6) type C-1 using 20 mm graded crushed stone aggregate for bedding upto a height of 45 CM above ground level, including dismanting and taking out U/s LT panel board and reconnecting existing LT UG Cable with new panel board all as directed :-

(a) MCCB with thermal magnetic release 4 Pole ,415 V of capacity 125 Amps , 25 KA - 01 No. (Incomer). (b) MCCB with thermal magnetic release 4 Pole ,415 V of capacity 100 Amps ,10KA - 02 Nos. (c)MCCB with thermal magnetic release 4 Pole ,415 V of capacity 63 Amps ,10 KA - 01 No. (d) MCB SPN ,240 V of capacity 40 Amps ,10 KA - 01 No. (e ) Multifunction Meter (V,I,PF) with suitable capacity of CT's - 01 No. (f) Indicating lamp (R-Y-B) set LED type with backup MCB for 3 Phase Supply - 01 set. (g) Space for spare feeder -01 No. Note :- (i) The Contractor shall submit the drawing for approval of GE before executing the work. (ii) Insulators, wiring, bus bar sleeves, lugs, gland etc including complete wiring with suitable size of copper wire are all inclusive in unit quoted rate. (iii) Make of Switch gear : Schenider/L&T/C&S. (iv) MCCB should be ICu = 100 % ICs . (v) Make of LT Panel /FPB shall be as mentioned in list of makes (PS). Note :- An amount of Rs 53895.00 on account of credit schedule for schedule 'A' part II shall be deducted from the total amount of BOQ to arrive at the contract sum.

ELAN ENGINEERS (BID ID -3138968)

M/S SRI BALAJI ENTERPRISES (BID ID -3138133)

M/S J S PRAKASAM (BID ID -3146153)

ARUNOTHAYA TRADERS (BID ID -3146253)