PROVISION OF SPECIAL REPAIR WORK AND MINOR WORK

Amount

SCHEDULE A BOQ

Supply, installation, testing & commissioning of maintenance free chemical earthing system comprising 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 complete all as specified and directed.

The unit quoted rate shall deem to be included for 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 04 number of earthing) to achieve 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) 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.

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

(vii) 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.

(viii) 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.

(ix) 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.

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

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

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

(xiii) The connection clamp shall be permanently 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.

(xiv) Copper strip of size 20 x 3 mm should be fixed on proper post insulator at the instrument end (cost for copper strip up to 7.5m is deemed to be inclusive in quoted rate). Any additional requirement will be paid and measured separately under relevant item here-in-below

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

(xvi) The contractor shall submit CPRI India certified document for copper bonded rod to ensure genuity of material.

(xvii) Sign board of mild steel 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 should be fixed near the earth pit after completion as directed by engr -in- charge.

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

S & F 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 9.2 tonnes with top dia not less than 250mm, bottom dia not less than 330 mm and height not less than 260 mm dia for each electrode pit complete all as specified and directed.

Note for Item No 21 :- The contractor shall submit load bearing capacity certificate from the manufacturer.

Supply and fixing copper strip 20 x 3mm thick as earthing lead fixed to wall/roofs etc all as directed.

S&F epoxy base insulators of suitable size 40mm height for fixing copper earth strip on wall/ceiling/floor/poles etc. complete all as specified and as directed

Supply and installation of lightening air terminal made of non-corrosive materials, must comply and tested to NFC 17-102 and UNE21186 standards. It should also be tested by CPRI India. The device should be tested for 100 KA of 10/350 micro seconds waveform of lightening impulse current withstand test and anticipation emission time not less than 46 micro seconds complying to NFC 17102 & CPRI. It shall provide complete protection by capturing dangerous lightening discharges and safety channeling it to earth. The lightening air terminal shall be an early streamer emission terminal which will respond dynamically upon stepped leader (lighting discharge moving down from the cloud) activity in the proposed Zone. The central final shall be elevated above the spheroid and should be sharp pointed. Arcing shall occur between the panel sections of the spheroid and finial tip only upon the progression of a lightening lader.

Note for Item No 25:- (a) The lightening protection system shall be of the advanced type which is designed to send upward streamer earlier than the other sorrounding metallic points, attract lightening to a preferred point and safely convey the lightening energy to ground with a predetermined route.

(b) It shall provide radius coverage of 107 mtrs level 4 protection.

Supply and Installation of elevation mast of minimum 5 mtr height, with suitable base shall be provided for mounting the mast and air termination with adaptor coupler /reducer, anchoring wires, clamps etc. as per manufacturers instructions. Base and mast section shall be made of GI with one coat of anti-corrosive zinc spray for additional protection.

Supply and installation of high voltage cable green colour of cross sectional area 70 sqmm insulated copper conductor with 0.5mm thick PVC sheathed copper cable for lightining current dissipation to the earthing system with necessary fixing clamp connector accessories etc.

Excavating in trenches n. exc. 1.5m wide and n. exc. 1.5m in depth for laying XLPE cable, foundation etc. or for shafts, wells, cesspits, manholes, pier holes etc. n. exc. 10sq.m. on plan and n. exc. 1.5m in depth and getting out in hard/ dense soil complete all as specified.

Returning, filling in including spreading leveling watering and well ramming in layers not exc 25cm in any type of soil complete all as specified and as directed.

Removing excavated materials to a distance not exc. 50m and depositing where directed at a level n.exc 1.50m above the starting point complete all as specified and as directed.

Riddling Sand obtained from excavation for cable protection 8cm under the cable and 15cm above the cable in trench and get the thick layer of 18cm after ramming complete all as specified and as directed.

Note for Item No 33 :- In case sufficient sand not obtained from excavation, the required additional qty shall be obtained from out side MD land as directed by the Engineer-in-Charge and the rate is deemed to be included the above provision also.

Supply and lay fly ash modular brick for cable protection size 23x11.5 x7.5cm including taking down existing brick complete all as specified and as directed.

M&L XLPE insulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 150 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets, etc including taking down existing cable etc complete all as specified and directed.

M & L 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 & wide 800mm including making good the existing surface with PCC 1:2:4 type B1 using 20mm aggregate thickness of concrete is 150mm complete all as specified and directed.

Note for item No 37 :- The tenderer shall take into consideration for following points while quoting his rate for this item and the unit rate is deemed to be included for :-

(i) Earth work 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 land

(iv) Laying of any type/any bore of pipe in trenches including taking down any description. Supply of pipe will be measured and paid separately

(v) 150 mm thick PCC 1:2:4 type B1 as in top/finishing layer

S & F XLPE insulated, screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 300 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets including taking down existing cable etc complete all as specified and directed.

Note for item No 44 :- Necessary excavation and earth work, sand cushioning & bricks for protection shall be measured and paid separately.

Supply only GI pipe 80 mm bore Light grade for cable protection complete all as specified and as directed by Engr-in-Charge.

Supply only GI pipe 100 mm bore Light grade for cable protection complete all as specified and as directed by Engr-in-Charge.

Note for Item No 46 & 47 :- The unit rate is included for supply only pipe. The connected items, i.e cutting existing road , excavation, labour for laying of any type/any bore of pipe in trenches and 150 mm thick PCC 1:2:4 type B1 as in road will be measured and paid separately.

S & F XLPE insulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 240 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets including taking down existing cable etc complete all as specified and directed.

Note for Item No 49 :- Necessary excavation and earth work, sand cushioning & bricks for protection shall be measured and paid separately.

S & F in repairs cable jointing kit for 1.1 KV grade cable for outdoor straight through heat shrink type joint complete with jointing material and accessories suitable for 3.5 core XLPE armoured aluminium conductor cable of size 120 sqmm to 150 sqmm complete all as specified and directed. .

S & F MCCB, 4 Pole, 400 Amps, thermal magnetic release adjustable type, 415 Volt, 36 KA including connecting up to using suitable size of copper lugs including taking down existing one complete all as specified and as directed.

S & F XLPE insulated,screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 95 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets including taking down existing cable etc complete all as specified and directed.

Note for Item No 53 :- Necessary excavation and earth work, sand cushioning & bricks for protection shall be measured and paid separately.

Supply only GI pipe 50 mm bore Light grade for cable protection complete all as specified and as dierced by Engr-in-Charge.

Note for Item No 55 :- The unit rate is included for supply only pipe. The connected items, i.e cutting existing road , excavation, labour for laying of any type/any bore of pipe in trenches and 150 mm thick PCC 1:2:4 type B1 as in road will be measured and paid separately.

S & F MCCB, 4 Pole, 250 Amps, thermal magnetic release adjustable type, 415 Volt, 36 KA including connecting up using suitable size of copper lugs including taking down existing one complete all as specified and as directed.

S & F XLPE insulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 70 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets including taking down existing cable etc complete all as specified and directed.

Note for Item No 58 :- Necessary excavation and earth work, sand cushioning & bricks for protection shall be measured and paid separately.

S & F in repairs cable jointing kit for 1.1 KV grade cable for outdoor stright through heat shrink type joint complete with jointing material and accessories suitable for 3.5 core XLPE armored aluminium conductor cable of size 70 sqmm to 95 sqmm complete all as specified and directed.

M & L earthing with Galvanised Earth Plate Electrode 600x600x 6mm thick burried directly in Ground (Earth Pit not less than 2.25 Metre below Ground Level) with Top edge of the Plate not less than 1.50 Metre below Ground Level, connected with Galvanised Earth Strip of size 32x6mm by means of Bolts, Nuts, Check Nuts and Washers of GI or Steel and connected Earthing Testing Point/Bus-bar including GI 40mm bore (dia) light grade Protection Pipe, Earth Plate surrounded by a packed thickness of Char Coal or Coke Dust mixed with Common Salt, Magneisum Sulphate (1 : 1 : 0.5) in alternate layers of not exc 150mm thick, PCC Pit in Cement Concrete 1:3:6, type C-1 using 20mm graded stone aggregate and Pre-cast RCC Cover Slab of size 350x350x50 mm in Cement Concrete 1:2:4 type B-1 using 20mm graded stone aggregate, reinforced with 10mm dia TMT Bars @ 100mm Centre to Centre in both ways, GI Wire Mesh, Funnel with GI Watering Pipe 20mm bore (dia) medium grade including necessary Excavation in any type of soil, returning, filling in and removal of surplus Spoil disposal to out side MD land and all as shown in Electrical Plate No. 3 of MES Schedule Part-I and testing on Completion including taking down old unserviceable one, complete all as per specified and directed.

Note for Item No 61:- (a) All Joints should be joined by Exothermic Welding or Brazing.

(b) After completion of work earthing shall be tested by the contractor in presence of Engineer-in-Charge, User and proper record shall be maintained duly signed by all concerned.

(c) Earth resistance tester shall be provided by the contractor. It should be caliberated from authorised company/ lab.

(d) After testing if desired earth resistance of less than 5 Ohm is not obtained, the earthing will be redone without extra cost to Govt till desired result is obtained.

S & F in repairs Galvanised Earth Strip of size 32x6mm as earthing lead fixed to wall/roofs etc complete all as specified and directed. .

Note for item No 66:- All Joints should be joined by Exothermic Welding or Brazing

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure complete all as specified and as directed.

S & F XLPE insulated, screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 185 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets including taking down existing cable etc complete all as specified and directed.

S & F XLPE insulated, screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 50 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets including taking down existing cable etc complete all as specified and directed.

S & F XLPE insulated, screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 35 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets including taking down existing cable etc complete all as specified and directed.

S & F XLPE insulated, screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 16 Sqmm 4 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets including taking down existing cable etc complete all as specified and directed.

Note for Item No 69 to 72 :- Necessary excavation and earth work, sand cushioning & bricks for protection shall be measured and paid separately.

S & F in repairs Cable jointing kit for 1.1 KV grade cable for outdoor straight through heat shrink type joint complete with jointing material and accessories suitable for 3.5 core XLPE armored aluminium conductor cable of size 185 sqmm to 240 sqmm complete all as specified and directed.

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-corrosive, UV resistance in accordance with IEC 61439-1, Fire retardant and Self-extinguishing in accordance with IEC 60695-2-11, UL subject 94 for flammability V-0, should pass glow wire test for 960° in accordance with 60695-2-11. Degree of protection against mechanical load should be IK 08 (5 Joule) in accordance with IEC 62262, IP 65 in accordance with IEC 60529 & IEC60439-1, should have Dielectric Properties, RoHS compliant & Halogen free. The manufacturer of boards/panel shall submit a copy of test reports as per above-mentioned norms from UL/ERDA/CPRI/NABL labs in India. The panels should be modular and compartmentalized in construction with opaque and transparent doors, properly tightened to base with thermoplastic screws having sealing gaskets of extruded silicon rubber to withstand adverse weather effects. The depth of modular enclosures should be above 200 mm for air circulation & to minimize temp rise. 3 phase and neutral 350 amps current carrying capacity copper bus bar insulated with colour coded heat shinkable sleeves with SMC/ DMC insulators, complete with the following switch gears and mounting the panel board on ground with PCC (1:3:6) bedding upto a height of 60 cm above ground level, including dismantling and taking out old u/s LT Panel Board and remove from site reconnecting existing LT Cables with new panel board comprising following switch gears complete all as directed :-

(a) MCCB, with thermal magnetic release , 4 Pole, 400 Amps, 36 KA , 415 Volt, 50 Hz - 1 No (incoming)

Supply, installation, commissioning and testing of Factory assembled, Floor mounted, free standing, 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-corrosive, UV resistance in accordance with IEC 61439-1, Fire retardant and Self-extinguishing in accordance with IEC 60695-2-11, UL subject 94 for flammability V-0, should pass glow wire test for 960° in accordance with 60695-2-11. Degree of protection against mechanical load should be IK 08 (5 Joule) in accordance with IEC 62262, IP 65 in accordance with IEC 60529 & IEC60439-1, should have Dielectric Properties, RoHS compliant & Halogen free. The manufacturer of boards/panel shall submit a copy of test reports as per above-mentioned norms either from UL/ERDA/CPRI/ NABL labs in India. The panels should be modular and compartmentalized in construction with opaque and transparent doors, properly tightened to base with thermoplastic screws having sealing gaskets of extruded silicon rubber to withstand adverse weather effects. The depth of modular enclosures should be above 300mm for air circulation & to minimize temp rise. Panel should be fitted with 01 No polycarbonate IP 65, 9W LED translucent bulk head luminaire, color temp not less than 6500K, PF > 0.95 under canopy for easy maintenance. Panel should be fitted with 01 No of 16A 3P IP 65 industrial socket and 01 No of 32A 5P IP 65 industrial socket outside. 3 phase and neutral 1000 Amps current carrying capacity aluminium bus bar insulated with colour coded heat shinkable sleeves with SMC/DMC insulators,, complete with the following switch gears and mounting the panel board on floor, including dismantling and taking out old u/s LT Panel Board box and remove from site reconnecting existing LT Cables with new panel board complete all as directed :-

a) LT, Air circuit breaker, operational voltage 660 volts, insulation voltage 1000 volts, AC, 50 cycles, 3 phase, 4 pole, Manual draw out type, rated current rating 630 amps and of breaking capacity 50 KA with quick make, quick break, with manual operating mechanism complete with triple mound current transformer, Microprocessor based over current stop less release and static trip release, adjustable short circuit release, earth fault release with shunt trip with indication under voltage release and wired for indicating “Trip Healthy circuit” ancillary switch etc complete over load release rating 400 to 630 Amps - 1 No.

(b) MCCB, 415 Volt, 4 pole, 50 Hz of capacity 400 Amps and rupturing capacity not less than 50 KA -1 No.

(c) MCCB, 415 Volt, 4 pole, of capacity 250 Amps, with adjustable thermal and fixed magnetic setting and rupturing capacity 35 KA - 2 Nos.

(d) MCCB, 415 Volt, 4 pole, of capacity 200 Amps and rupturing capacity 35 KA - 2 Nos.

(e) MCCB, 415 Volt, 4 pole, of capacity 100 Amps and rupturing capacity 25 KA - 2 Nos.

(h) Pilot lamps LED type with backup MCB for 3 phase supply -1 set.

Supply, installation, commissioning and testing of Factory assembled, Floor mounted, free standing, 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-corrosive, UV resistance in accordance with IEC 61439-1, Fire retardant and Self-extinguishing in accordance with IEC 60695-2-11, UL subject 94 for flammability V-0, should pass glow wire test for 960° in accordance with 60695-2-11. Degree of protection against mechanical load should be IK 08 (5 Joule) in accordance with IEC 62262, IP 65 in accordance with IEC 60529 & IEC60439-1, should have Dielectric Properties, RoHS compliant & Halogen free. The manufacturer of boards/panel shall submit a copy of test reports as per above-mentioned norms either from UL/ERDA/CPRI/NABL labs in India. The panels should be modular and compartmentalized in construction with opaque and transparent doors, properly tightened to base with thermoplastic screws having sealing gaskets of extruded silicon rubber to withstand adverse weather effects. The depth of modular enclosures should be above 200mm for air circulation & to minimize temp rise. Panel should be fitted with 01 No polycarbonate IP 65, 9W LED translucent bulk head luminaire, 6500K, PF > 0.95 under canopy for easy maintenance. Panel should be fitted outside with 01 No of 16A 3P IP 65 industrial socket and 01 No of 32A 5P IP 65 industrial socket. 3 phase and neutral 400 amps current carrying capacity copper bus bar insulated with colour coded heat shinkable sleeves with SMC/DMC insulators, complete with the following switch gears and mounting the panel board on ground with PCC (1:3:6) bedding upto a height of 45 cm above ground level, including dismantling and taking out old u/s LT Panel Board and remove from site reconnecting existing LT Cables with new panel board complete all as directed :-

(a) MCCB, with thermal magnetic release, 4 Pole, 415 Volt, of capacity 400 Amps, 36 KA - 1 No(Incomer)

(b) MCCB, with thermal magnetic release, 415 Volt, 4 pole, of capacity 250 Amps, 36 KA - 1 No

(c) MCCB, with thermal magnetic release, 4 pole, of capacity 200 Amps, 25 KA - 2 Nos

(d) MCCB, with thermal magnetic release, 4 pole, of capacity 100 Amps, 25 KA - 4 Nos

(f) Ammeter digital type with CT for three Phase 0-400 Amps with selcetor switch - 1 Set

(g) LED indication lamps with backup MCB for 3 phase supply-1 Set

D.R ASSOCIATES

A.GOVINDARAJ

devan enterprises

S.RAMACHANDRAN

N SARAVANAN

p.chinnasamy

Neptune Engineers and Builders

Lucky Enterprises