Repair, maint and replacement of earthing infra and connected works at tech area 19 Wing, AF and 14 BRD, AF. Repair / rewinding of ceiling fan, exhaust fan, wall fan and geysers at 19 Wing, AF and 14 BRD, AF under GE (AF) Borjhar

M&L in replacement Earthing complete with copper earth plate electrode 600x600x3.15 mm thick buried directly in ground (earth pit not less than 2.25 m depth below ground level) with top edge of the plate not less than 1.5 m below normal ground level connected to copper strip 20x3mm by means of brass nut, bolt, washer & suitable GI protection pipe for earth lead from the earthing plate to the DB/ main switch/ Panel (25 mm bore, Light grade), watering pipe from plate to earthing pit (20 mm bore, medium grade), funnel with wiremesh. The earthing pit made up of PCC 1:3:6 type CI and pit cover made up of 40 mm thick pre cast RCC 1:2:4 type BI reinforced with 6 mm dia TMT rod and suitable handle of 8 mm dia TMT rod incl necessary earth work as shown in SSR Part 1 plate no.5 complete all as specified & directed.

M&L in replacement Earthing complete with Galvanised Iron electrode 600x600x6 mm thick buried directly in ground (earth pit not less than 2.25 m depth below ground level) with top edge of the plate not less than 1.5 m below normal ground level connected to GI strip 20x3mm mm dia by means of brass nut, bolt, washer & protection pipe for earth lead from the earthing plate to the DB/ main switch/ Panel (25 mm bore, Light grade), watering pipe from plate to earthing pit (20 mm bore, medium grade), funnel with wiremesh. The earthing pit made up of PCC 1:3:6 type CI and pit cover made up of 40 mm thick pre cast RCC 1:2:4 type BI reinforced with 6 mm dia TMT rod and suitable handle of 8 mm dia TMT rod incl necessary earth work as shown in SSR Part 1 plate no.5 complete all as specified & directed.

Taking out old corroded earth continuity conductor of any types or sizes from brick wall/ RCC structure/ CGI sheet or equivalent location carefully incl. making good of all disturbed surfaces all as specified & directed.

M & L for earth continuity conductor or main earthing lead fixed to wall / roof by dmc insulator (as reqd basis) on any other indicated location for loop earthing etc with 20x3mm copper strip all as specified & directed. (Copper strips should be fixed on cleat insulator of 60 cm apart if reqd)

M & L for earth continuity conductor or main earthing lead fixed to wall / roof by dmc insulator (as reqd basis) on any other indicated location for loop earthing etc with 32x6mm copper strip all as specified & directed. (Copper strips should be fixed on cleat insulator of 60 cm apart if reqd)

M & L for re-fixing of old earth continuity conductor or main earthing lead of any types or sizes (Copper or Aluminium or GI) to wall / roof by dmc insulator (as reqd basis) on any other indicated location for loop earthing etc with 20x3mm copper strip all as specified & directed. (Copper or Aluminium or GI strips should be fixed on bridge insulator of 60 cm apart if reqd)

Taking out old corroded steel tubes of any types or sizes from brick wall/ RCC structure/ CGI sheet or equivalent location carefully incl. making good of all disturbed surfaces all as specified & directed.

S&F galvanized steel tubes of 40 mm bore light grade including all fittings like bend & socket and fixed on walls / ceilings / floors through MS clamp for earth strip protection complete all as specified and directed.

S&F galvanized steel tubes of 50 mm bore light grade including all fittings like bend & socket and fixed on walls / ceilings / floors throgh MS clamp for earth strip protection complete all as specified and directed.

M&L for clamped joints (by overlapping the bars and applying clamps around the overlap) after brazing the jointing portion of the copper earthing strips complete all as specified and directed.

S&F for installation of high efficiency 122 W LED Highbay luminaires, IP 66 in aluminium pressure die-cast housing for better heat dissipation with efficacy 150 Lumen/ Watt, CCT 5700K, CRI >70, power factor > 0.95, LED module with SMD LED package; mounted with PC lens to ensure better uniformity of light distribution with surge protector 10 KV incl taking down old unsv one complete all as specified and directed. SAUCERGENXADVULTHBP122WLED757PWBTOPCGRY or equivalent model of C&G, Philips minimum of price range of Havell's same model. Note : i) Any fastener bolt, steel clamp, nut & bolt reqd for installation of luminaires on the ceiling, steel structure, PCC Foundation etc are deemed to be included in the rate quoted. ii) Any connector reqd for connection of wiring cable to fittings are deemed to be included in the rate quoted.

M & L for test point terminal block made of gun metal for phosphorous bronze size 75 X 75 X 25 mm, drilled and screwed including 3 Nos. 8 mm dia 25 mm long hex head screw within halogen free weather proof IP-66 enclosure with one/ two nos mounting bracket all as specified and directed. Enclosure Make : Hensel/ OBO (The test point should be 1.0 mtr above ground level)

Supply & Installation of Advance encapsulated compound based CPRI tested maintenance free, pipe-in- pipe technology upgraded (Zinc & Alloy Coated), ZINC COATED (80-100) microns with pure Zinc (99.9%) & ALLOYCOATING (150-200) microns. Earthing System confirming IS 3043.The outer and inner pipe should be 48.3mm & 26.4mm dia, 3mtrs Length, Zinc coated with additional special Alloy coating 300mm on the topside for additional protection of the Terminal. The annular space between the pipes being filled up with COMPACT FILLED (Crystalline Conductive Compound). The COMPACT FILLED mixture which is machine pressed in the pipes should disintegrate or collapse when outer pipe corrodes. The inner pipe should be extended with terminals for connectivity. The Back Fill Compound should be Electronically Conductive with Noncorrosive Properties & Environmentally Neutral Material. Conductolite Back Fill Compound shall be suitable to be installed in either slurry or dry form and shall not be mixed with any soil/ cement etc while pouring in the bore hole, So that it improves conductivity of the earth electrode and ground contact area.

TheBack-fill material shall have following characteristics… (a) Resistivity 0.1 Ohm-meters as per Clause 5.4.1 of IEC 62561-7:2018 (b) Tested as per IEC : 62561-7 and the test certificates (Corrosion Test, Leach Test, Sulphur Test & Resistivity Test ) shall be Submitted. (c) Shall not depend on the continuous presence of water / moisture / salt to maintain its conductivity. (d) Shall not decompose or leach out with time. (e) Shall solidify when mixed with water and set like concrete. (f) Shall not contain hazardous chemicals and necessaryTestcertificate fromreputed accredited laboratories shall be furnished. (g) Shall not be affected by drought and shall be stable between-10˚ to +50˚ C temperature. (h) Shall be suitable for any kind of soil. (j) Shall be supplied in sealed, moisture proof bags. These bags shall be marked with Manufacturer’s name or tradename & quantity. Contd...

Test Certificate: The following test certificates shall be submitted by the bidder / vendor to the client’s engineer prior to supply of CONDUCTOLITE Carbon based Backfill compound from an independent laboratory (NABL Accredited Laboratory) Alongwith routine test report in-house A) Corrosion test certificate as per IEC : 62561-7 B). Leach test certificate as per IEC : 62561-7 C) Sulphur test certificate as per IEC : 62561-7 D) Resistivity test certificate as per IEC : 62561-7 Make : ASEEL, INDELEC, ERICO, MACMATE, MARCONITE”. Design : Pipe in Pipe Technology. Model-ASEEL-19 3m length (ZINC & ALLOY COATED) 1) ASEEL19-OUTER & INNER DIA-48.3/ 26.4mm Tested by: Central Power Research Institute CPRI (Bangalore.) (All the above given dimensions may vary ± 1 MM) 2) Back-Fill-Compound : BARON CONDUCTOLITE Back Fill Earth Enhancing Carbon Based Conductive Concrete compound 25kgs per bag.

M&L for excavating in bore holes of 300 mm (minimum) dia to a depth of 3450 mm (minimum) by augur or any other process in trenches manually not exceeding 0.5 cum in each bore complete incl removing surplus excavating material, returning filling for chemical earthing in soft / loose soil all as specified and directed. Note : This item shall not be operated with Serial item No. 13.00

Taking out old corroded electrode of any types or sizes from maintenance free chemical earthing.

Supply, install, testing & commissioning of maintenance free chemical earthing by pure Copper Electrode of 17.2mm dia and 3000mm long for earthing with excellent electrical conductivity and corrosion resistance, minimum 50 kg ground enhancing compound/ material used around the electrode inside the earth pit to define the working environment of the earthing system. Make : Electrode - 99.9% pure copper rod with test certificate for purity from any Government lab, Ground Enhancing Compound - ABB/ OBO

The process for the earthing are appended below :- i) Soil resistivity of that area shall be measured. ii) If soil resistivity is more, then multiple earthing shall be carried out in grid pattern i.e if two earthing is reqd then the pattern is" ── " and if three earthing is reqd the the pattern is "∆", but a minimum distance of 2 meters between two earth pit should be maintained. However, there should not be more than three earthing pit in a grid. iii) Make a bore of 300 mm (minimum) dia to a depth of 3450 mm (minimum) by augur or any other process. iv) The soil dug out from the earth pit shall be checked to remove lumps and stones from it, before back filling. v) Moisture retaining ground enhancing materials of minimum 50 kg having resistivity equal to or less than 0.3 Ωm shall be poured in the bore. vi) A layer of 150mm of the above ground enhancing materials shall be prepared at the bottom. vii) Plastic sleeves from electrode shall be removed before it is lowered in the pit. Contd....

viii) Small quantity of ground enhancing material shall be filled at a time and some water in the pit. Further quantity shall be added after the earlier quantity has been sufficiently poked with suitable rod to remove trapped air bubbles from it. ix) If grid earthing is reqd. necessary interconnection shall be carried out by 20X3mm copper strip which shall be buried below 300mm from G.L with additional quantity of ground enhancing material & cost of the same is deemed to be included in this rate After connection to the earth strip, inspection pit shall be prepared & it shall be made up of PCC 1:3:6 type CI and pit cover made up of 40 mm thick pre cast RCC 1:2:4 type BI reinforced with 6 mm dia TMT rod and suitable handle of 8 mm dia TMT rod incl necessary earth work complete all as shown in diagram. There shall be provision of hole of 300mm dia for easy termination of strip, pouring normal water during hot summer seasons. Contd....

x) A coat of conductive petroleum jelly shall be applied on the terminal of the electrode & copper alloy clamp for protection against corrosion. xi) A certificate from the Government lab for purity of the electrode and resistivity of ground enhancing compound /material shall be furnished prior approval of sample. Note:-i) If more than one earthing is reqd due to high soil resistivity at site the payment shall be carried out by measuring extra quantity ii) The strip for grid earthing/ connetion strip for Test Point shall be measured & paid separately iii) The cost for excavation & removing of soil shall be measured & paid separately. Contd....

M&L for charging common salt with mixing water in earthing pit to improve the earth resistance all as specified and directed

M&L for prepartion of new earthing inspection pit made up of PCC 1:3:6 type CI and pit cover made up of 40 mm thick pre cast RCC 1:2:4 type BI reinforced with 6 mm dia TMT rod and suitable handle of 8 mm dia TMT rod (incl necessary earth work, demolition and removal of old damage inspection pit) as shown in SSR Part 1 plate no.5 or IS 3043:1987 complete all as specified & directed.

M&L for replacement of earthing pit marking plates or sheets or any other works of size 450 mmX 200mm made up of 3mm thick MS Sheet of size including fabrication works such as cutting, welding & bent to shape and painting with two coats of enamel paint over a coat of red oxide primer on steel surfaces of any description over 10cm in width or girth including preparation of new untreated surfaces complete all as specified and directed.

M&L for angle iron / flat bar of required sizes including fabrication works such as such as cutting, welding & bent to shape and painting with two coats of black japan paint over a coat of red oxide primer on steel surfaces of any description over 10cm in width or girth including preparation of new untreated surfaces complete all as specified and directed. Note for Serial item No. 18.00 to 21.00 : These items will be operated independently for existing earthing to enhance desired result.

All as per Serial item No. 22.00 here-in-before including notes but exhaust fan of 200mm to 300mm sweep.

All as per Serial item No. 22.00 here-in-before including notes but exhaust fan of 300mm to 450mm sweep, heavy duty (industrial type).

All as per Serial item No. 22.00 here-in-before including notes but exhaust fan of 450mm to 600mm sweep, heavy duty (industrial type).

All as per Serial item No. 22.00 here-in-before including notes but Wall Mounted Fan/Pedastal fan/Air circulation motor of 200mm to 450mm sweep.

All as per Serial item No. 22.00 here-in-before including notes but wall mounting fans, heavy duty (industrial type).

S&F as in replacement of fan capacitor of capacity 2.25/2.5 mfd, oil filled, metal body, rated voltage 440 volts complete all as specified and as directed.

All as per Serial item No. 28.00 here-in-before but 3.15 mfd.

All as per Serial item No. 28.00 here-in-before but 4 mfd.

S&F as in replacment of ball bearings of suitable size (bearing No. 6201) for ceiling fans/ exhaust fans, etc. including greasing for smooth functioning complete all as specified and as directed.

All as per Seria item No. 31.00 here-in-before but ball bearing of suitable size (bearing No. 6202).

All as per Seria item No. 31.00 here-in-before but ball bearing of suitable size (bearing No 6203)

All as per Seria item No. 31.00 here-in-before but ball bearing of suitable size (bearing No 6204)

S&F as in replacement of gun metal bush suitable for 1200/1400mm sweep ceiling fans complete all as specified and as directed.

S&F as in replacement of steel alloy shaft suitable for 1200/1400mm sweep ceiling fans complete all as specified and as directed.

S&F as in replacement of ball bearing suitable for 225/300/ 350/450mm sweep of Exhaust / Pedestal/ Wall mounting fans complete all as specified and as directed.

S&F as in replacement of gun metal bush suitable for 225/ 300/ 350/ 450mm sweep for Exhaust/ Pedestal/ Wall mounting fans complete all as specified and as directed .

S&F steel alloy shaft suitable for 225/300/ 350/450mm sweep for Exhaust/ Pedestal/ Wall mounting fans, etc. complete all as specified and as directed.

M&L for lathe work of any type fans for taking out bush from the lower body part of ceiling fans and replacing it with suitable size of bush as per existing type with all connected services complete all as specified and as as directed. Note : S&F of bearing shall be measured and paid separately.

M&L for replacement of all unserviceable PVC canopy with new PVC canopy, suitable for 1200/1400mm sweep fans complete all as specified and as directed.

M&L for replacement of wall fan blades, made from ABS plastic of suitable size complete all as specified and as directed.

M&L for replacement to unserviceable fan blades (set of three blades) and provision of new fan blades (set of three blades) suitable for 1200/1400mm sweep complete all as specified and as directed.

M&L for replacement of unserviceable rusted ceiling fan down rod of 60cm long with new down rod including clamps, nuts & split pins, etc. suitable for 1200/1400mm sweep ceiling fans complete all as specified and as directed.

M&L for replaced to old unserviceable rubber clamps with new rubber clamps for hanging of ceiling fans complete all as specified and as directed.

S&F alloy steel heavy duty 'D' hook hanger with M10 x 75mm fasteners for hanging of ceiling fans complete all as specified and as directed.

M&L for replacement of stainless steel metal grill suitable for 300mm to 450mm sweep wall fans complete all as specified and as directed. Make : As per sample (ISI marked)

S&F fastner bolts with nuts and washers of size 4 inch long, 10mm dia with complete accessories all as specified and as directed.

Taking down carefully storage type water heater (Geyser) of any type and any make upto 50 Litres capacity after disconnecting all electric connections, descaling the inner container, heating element, base assembly, etc. by using chemical and cleaning thoroughly, filling the inner container with water and checking and arresting leakage if any, reassembling the geyser after servicing and replacing unserviceable spare parts and refixing including water line connections and testing on completion complete all as specified and as directed: Notes: (i) Spare parts, like heating element, thermostats, flexi connection for hot water / PVC connections etc. shall be measured and paid separately. (ii) Painting shall be measured and paid separately.

S&F copper tank for geysers of 25 litres capacity including replacement of copper alloy nuts, bolts, etc. complete all as specified and all as directed.

All as per Serial item No. 50.00 here-in-before but for 50 litres capacity geyser.

S&F heating element 1.5 KW, AC, single phase, 50Hz, 230 volts suitable for geysers for thread type/ press type/ traingular/ circular type, etc. complete all as specified and as directed.

All as per Serial item No. 52.00 here-in-before but heating element 2 KW.

S&F thermostat with automatic cut off suitable for geysers of ranges 20 degree C to 90 degree C complete all as specified and as directed.

S&F hot water line, steel guarded PVC connection pipe, 450mm long with self locking nut at both ends, 15mm bore complete all as specified and as directed.

M&L for applying two coats of synthetic enamel paint (white or ivory) after treating/ cleaning of old painted surfaces complete over geyser of 25 Litre capacity all as specified and as directed.

S&F indicating lamp, round or rectangular type suitable for geyser, single phase, 230 volts, 50 Hz complete all as specified and as directed. Note: Two Nos of lamps contain green or ambigo and red colour shall be counted as one unit.

S&F steel body top cover for geyser, 50 Litres capacity including necessary screws complete all as specified and as directed.

All as per Serial item No. 58.00 here-in-before including nut but for geyser, 25 litres capacity.

S&F steel body cover (bottom) for geyser, 50 Litres capacity including necessary screws complete all as specified and as directed.

All as per Serial item No. 60.00 here-in-before including note but for geyser, 25 litres capacity.

S&F apparatus plate with gasket for geysers, 50 litres capacity including necessary screws complete all as specified and as directed.

All as per Serial item No. 62.00 here-in-before but for geyser, 25 litres capacity.

S&F glass wool for geysers, 50/25 litres capacity complete all as specified and as directed.

S&F plug top, 15 Amp, 3 pin, 240 volts complete all as specified and as directed.

S&F 2.5 sq.mm 3 core, 1100 volt grade PVC insulataed, PVC sheathed copper conductor cable, confirming to IS : 694 for connection of geyser to socket and to 15 amps switch socket combination complete all as specified and as directed.

M&L for galvanised CPVC pipe medium grade of 16 mm bore with &including all fittings and fixed complete to walls and ceilings or laid in floors complete all as specified and as directed by Engr-in-Charge.

Supply and fix Bib taps 15 mm, cast copper alloy with crutch or butterfly handle, screwed down, screwed for iron pipe or for brass ferrule and fixed complete all as specified and directed.

S&F angle stop valves of size 15mm dia, fancy type, copper alloy with butterfly handle, screwed down, screwed for iron pipe complete all as specified and as directed.

S&F PVC connection pipe heavy duty wire armoured, 450mm long with self locking nut at both ends, 15mm bore complete all as specified and as directed.

S&F louver for 300mm sweep exhasut fans made of 0.5mm thick GI sheet including taking down old corroded one complete all as specified and as directed.

M&L for Writing of MES No of ceiling fan/ Exhaust fan/ wall mounted fan/ geysers with black synthetic enamelled paint Writing letters or figures (Block. Roman, Italic or Indian) not exc. 30 cm high as directed by Engr-in-Charge.

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