REPAIR MAINT REPLACEMENT OF ELECTRICAL INFRASTRUCTURE LIGHTING PROTECTION SYSTEM AIR FIELD LIGHTING AND CERTAIN MISC E M WORKS IN TECHNICAL AREA

Amount

SCHEDULE A BOQ

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5m deep in hard/dense soil and getting out for taking down/laying of pipes

Returning, refilling including spreading levelling watering and well ramming in layers not exceeding 25cms thick in hard/dense soil

Removing excavated materials not exceeding 50m distance and depositing where directed at level not exceeding 1.5 m above the starting point

Cement concrete in foundations, filling and mass concrete 1:4:8 type D2 40mm graded aggregate.

PCC 1:2:4 type C-1 (using 20mm graded brick aggregate) as in coping/ foundation of tarmac/ taxi light assembly including necessary form work etc complete all as specified and directed.

Laying only any size of XLPE cable in trenches/ through pipes or bare in road crossing/ paths/ drains/ ducts/ floor/ along poles/ walls/ ceiling/ equipments etc. Tarmac lighting cable of any size all as specified and directed. Note :- (a) Cable shall be issued by Air Force authority and excavation and earth work, sand and bricks shall be measured separately.

Fixing in repairs Taxi light fitting and connecting the Taramac lighting cables with necessary spike all as directed by Engineer-in-Charge. Note :- (i) Taxi light fittings will be issued by Air Force authority. (ii) PCC foundation for fixing the fittings will be measured separately.

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. Note :- In case sufficient sand not obtained from excavation, the required additional qty obtain from out side MD land as directed by the Engineer-in-Charge. The rate is deemed to be included.

Protection to cable with one layer of new bricks laid flat butting to each in such a way that the length of the bricks is at right angle to the central axis of the cable using old size sub class 'B' bricks

Cutting existing road/PCC/Drain for laying of DI/GI or any type of pipe including necessary earth work, excavation exc 500mm depth but not exc 1mtr depth, wide 800mm including making existing surface with PCC 1:2:4 type B1 using 20mm aggregate thickness of concrete is 150mm complete all as specified and directed.

Note :- The tenderer shall take into consideration for following points while quoting his rate for this item and the unite rate is deemed be included for :-

(i) Earth work excavation in any type of soil/ PCC/ BT road

(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 any type of road

Removing HT cable, 11 KV, XLPE 185 Sqmm 3 core with aluminium conductor, shifting to other location (not exc 2 KM distance) and relaying same cable in trenches/through pipes or bare in road crossings/ paths/drains/ducts/ floors /along poles/walls/ ceilings/ equipments etc. all as directed.

Note No 1 : The unit rate is deemed to be included for :-

(a) Excavation for taking down existing cable, relaying cable in other location and shifting of cable as directed by the Engineer-in-Charge.

(b) Disposal and return filling

Note No 2 : Sand cushioning and PCC cover shall be measured and paid separatley under relevant item.

Supply only 100 mm bore of pipe high density polyethylene pipes (HDPE) of pressure rating 6 kgf/ cm2 laid in trenches for cable protection passing under road/ floor or for fixing to poles complete all as specified and directed. Note : The unit rate is included for supply only and cutting existing road , excavation, Laying of any type/any bore of pipe in trenches including taking down any description and 150 mm thick PCC 1:2:4 type B1 as in road will be measured and paid separately.

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 type 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, 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 600 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 :-

Disconnecting from system and taking out old unserviceable, burnt, punctured taramac lighting cable 3 KV grade from excavated trenches/ ducts/ wall/ pole/ pipe etc, all as specified and directed. Note :- (a) Old/ unserviceable retrived Tarmac cable will be handed over to Air Force authorites. (b) Excavation and earth work measured separately.

LED aviation obstruction light with IP 66 protection water clear poly carbonate UV stabilized dome neoprene rubber with bind spike with 302 Nos LED bulbs including necessary electric connections including 2.5 sqmm, 2 core, PVC copper cables fixed on wall with 20mm dia PVC conduit from DB to light fitting fixed in and including GI pipe 25mm dia 1 mtr long grouted with PCC complete/ binding with existing angle frame etc complete including taking down existing one all as directed at site. Make : Bajaj Cat No - 110731 or equivalent in Wipro/ CG.

Removing of accumulated earth ground runway tarmac/ taxi track or any other indicated place of any width and depth upto 15cm cleaning / Cutting the grass with hand operated petrol/ kerosene driven grass cutting machine and removing the grass waste to outside MD land. Note : Periodicity and locations of cutting of grass as required by the air force authoriities. The measurement will be recorded by the air force authority in a pucca bound register and payment will be made based on the entries.

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 8-10 inch bore, 12 feet depth with a distance of minimum 3 meters between each installation including taking down existing one. Make : Model HTSP 3I7 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 04 number of earthing) to achive earth result less then 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 valve 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 should be fixed on proper post insulator at the instrument end ( The rate of earthing strip up to 7.5 Mtrs is included in the quoted rate).

(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 concern.

(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 maintened 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 given 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 dry or rocky soil.

(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 mainained.

(xiii) 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.

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

(xviii) 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.

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

Supply and lay earth continuity conductor or main earthing lead of 8 SWG (4mm dia) in trenches along the runway lighting cable all as directed. Note :- Excavation and earth work measured separately.

Supply and laying in trenches/through pipes or bare in road crossings/paths/ drains/ ducts/ floors/along poles/equipments etc. Cable Under ground, cross linked poly-ethylene (XLPE) insulated, screened, PVC bedded, galvanised steel strip armoured, electric power cables with aluminium conductor, earthed,11 KV grade, of cross sectional area 185 Sqmm x 3 core laid including taking down existing cable from trenches/ duct or any position all as specified and directed. Make : RPG Asian, Havells, Polycab

Out door cable end jointing kit (Heat shrinkable) suitable for XLPE under ground aluminium conductor cable, 11 KV (earthed) grade, of cross sectional area 185 Sqmm 3 core Make : Raychems, Densons, M Seal. Note: Taking out of existing cable, from VCBs, RMUs or Two Pole structures and cutting faulty ends if required and re- fixing the same with out any damage of switch Gears are deemed to be included in the item rate quoted) (ii) Complaints will be given in person or through telephone by AGE/JE E/M round the clock (ie 24 Hrs x 7 days ). (iii) The contractor shall attend the complaint immediately and shall report the Engr-in-Charge/JE E/M after completion with in 6 hrs (iv) Penalty of Rs 2000.00 per Job shall be applicable to the contractor if the complaint is not attended with in half an hrs. Note that this penalty is exclusively other then the condition 56 of IAFW - 2249 and shall be treated as interim condition of the contract and shall be enforce above as and when delay in individual job is noticed and no claim whatsoever on this account shall be entertained by the Deptt. (v) The decision of the Accepting Officer in this regards shall be final and binding. (vi) The transportation/ T&P required for the work shall be arranged by the contractor and no extra cost will be paid for the same.

Supply only GI pipe 100 mm bore medium grade for cable protection complete all as specified and as dierced by Engr-in-Charge. Make : Tata, Jindal, Surya Prakash Note : The unit rate is included for supply only and cutting existing road , excavation, Laying of any type/any bore of pipe in trenches including taking down any description and 150 mm thick PCC 1:2:4 type B1 as in road will be measured and paid separately.

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 including taking down existing one 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.

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

Supply, install, testing and commissioning of energy conversion digital grounding apparatus three phase 4 wire 240 KA with inbuilt 100% lighting surge protection, noises, ESD, EPR and abnormal electrical characteristics which enter power and other service lines and ensuring clear bonding potential (Earth to neutral voltage) less than 1.0 volt to be connected in parallel to the circuit, conforming to IE, tested and certified as per latest certification (IEC 61643-1, IEC-61000-4-5, IEC-61000-6-1, IEC-61000-6-3, MIL-STD-810-G, ISO 14001-2004) in prewired metal enclosure with pulverulent body painting including all accessories required for installation etc complete including taking down all as specified and as directed. Make : Ground Co ltd Model No eca 3 G LP-34-40 of equivalent.

Taking out faulty Tarmac lighting UG cable, cutting faulty end and making joint using out door cable straight through jointing kit (Epoxy/ Heat Shrinkable type) suitable for PVC/ XLPE under ground cable, 3 KV grade including crimping copper sockets of suitable size complete of size upto 3 core 25sqmm. Note :- Excavation and earth work, sand cushioning, bricks for protection if necessary willbe measured and paid separately.

Un-reinforced precast concrete cable cover, class HV Type 1, Flat size 300mm x 180 mm x 40 mm thick.

Out door cable straight through jointing kit (Heat shrinkable) suitable for XLPE under ground aluminium conductor cable, 11 KV (Earthed) grade, of cross sectional area 185 Sqmm 3 core. Make : - Raychem, Denson, M-Seal Note :-(i) Locating of HT UG Cable fault and taking out the existing faulty HT cable carefully from the trench after excavation and cutting faulty portion and re- laying the same cable after jointing with out any damage are deemed to be included in the item rate quoted . (ii) Complaints will be given in person or through telephone by AGE/JE E/M round the clock (ie 24 Hrs x 7 days ). (iii) The contractor shall attend the complaint immediately and shall report the Engr-in-Charge/JE E/M after completion with in 6 hrs (iv) Penalty of Rs 2000.00 per Job shall be applicable to the contractor if the complaint is not attended with in half an hrs. Note that this penalty is exclusively other then the condition 56 of IAFW - 2249 and shall be treated as interim condition of the contract and shall be enforce above as and when delay in individual job is noticed and no claim whatsoever on this account shall be entertained by the Deptt. (v) The decision of the Accepting Officer in this regards shall be final and binding. (vi) The transportation/ T&P required for the work shall be arranged by the contractor and no extra cost will be paid for the same.

Disconnecting and taking out old u/s Power Pack unit complete from existing VCBs and supply, install, testing and commissioning of Power Pack unit with Battery Backup of capacity 100 Watts -10 Nos, input Voltage AC, 50 Hz, 230 Volt +/- 20% and out put Voltage 110 Volt, DC, Back period of 08 hrs for the requirement of minimum 10 times of ON/ OFF operation suitable for VCB panels, in sheet steel enclosure made out of CRCA sheet duly powder coated, indoor type, weather/ vermin proof, complete with the following items, including making connection with VCB using PVC insulated copper conductor cable of suitable size all as specified and directed :- (a) Over voltage protection -1 No (b) short circuit Protection -1 No (c) Over load protection on the output side -1 No (d) Out put on/off Switch -1 No (e) Indication for charger on, out put off, Battery operation, over load & output on. (f) Input/ Output terminals (g) Input fuse -1 No. (Note : Connection with VCB shall be carried out by the authorised service Engineers Of VCB only ). Make : ALAN, HBL, Amara Raja, Location : MRS, Sub Stn ‘C’

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 type 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 250 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) type C1 bedding upto a height of 45 cm above gorund 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 :-

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 25x6mm 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 (20mm graded stone aggregate) and Pre-cast RCC Cover Slab of size 350x350x50 mm in Cement Concrete 1:2:4 (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 as directed.

Note :- (a) All Joints should be joined by Exothermic Welding or Brazing.

(b) The rate of earthing strip upto 7.5 mtrs shall be included in the quoted rate and beyond 7.5 mtrs shall be measured and paid separately.

(c) 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.

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

(e) After testing if desired earth resistance of less than 5 Ohm is not obtained, the earthing will be redone at no extra cost to Govt till desired result is obtained.

Galvanised Earth strip of size 25 x 6 mm fixed on proper post insulator at the instrument end including taking down.

LAKSHMI ELECTRICAL ENTERPRISES

Rajapriyaconstruction

pk janardhanan

Sreekrupa Enterprises

SENTOOR BUILDERSS

devan enterprises

Neptune Engineers and Builders

NAVEEN ENTERPRISES

K T ASSOCIATES