ADDN ALTN UPGRADATION TO EARTHING INFRASTRUCTURE AT 15 BRD UNDER GE AF CHILODA

M &L for tightening and fixing in position loose hanging copper / alurninium strip of any size on wall or building roof using new insulators of porceline of approved size and fixing existing copper / aluminium strip on the same as existing complete all as directed by Engineer-in-Charge.

M&L for dismantling the strip from earth pit and testing of earth pit to be done as per fall of potential method mentioned in IS-3043 with digital earth resistance tester to check the healthiness of earthing system in and including replacement earth pit nut bolts with brass nut bolts as per required size and record should be kept on ledger duly signed by user representative, JE concerned and contractor and the same shall be submitted to Engr in charge for counter signature complete all as specified and directed by Engineer-in-Charge. Note: Testing of earth pit shall be done as required basis as directed by Engineer-in-Charge

M &L for physical inspection for earthing health and to check the healthiness of earthing system whether the resistance under safe limits of resistance IF higher than the permissible then recharging of earthing should be done immediately with carbon based low resistivity compound 0.001 ohm meter recharging of existing earth pit by excavating soil up to electrode depth approx 10 feet by manual drilling (post hole) method and filling with backfill compound maintenance free earthing compound to achieve desired resistance value less than 1/3 ohms in and including water up to top of the excavated bore, backfilling of earth pít, measuring the value after refilling pit and testing of earthing after recharging, reconnecting grounding electrode conductor and earth grid applying petroleum jelly etc. to bolted joints to minimize corrosion for the pipe earthing or plate earthing then gel should be used to lower down the resistance complete all as specified and as directed by Engr-in-charge. Note: (i) In case of satisfactory results not found or results degraded during one year of recharging of the earthing, the same shall be made good/recharged again in order to have required test results within contract/Defect liability period without any extra cost to the department. (ii) Contractor will mark each earthing with CA No., date of recharging of earthing on MS sheet size 18"x12"x 1/8" with suitable mounting arrangement on wall or on ground duly painting blue over a coat of Red Oxide primer and letter/figures of words written with white colour. Quoted rate will be deemed to have been included the cost of the same. (iii) Necessary compound required for recharging shall be measured and paid separately under item No 4 here-in- after.

Supply and topup Earthing Soil Resistivity improvement compound Gel type, Enhancement compound Transparent Liquid Jel all as specified and directed by Engr-in-charge.

M&L for copper brazing (welding) at site to connect loop copper earthing strip of any size after tightening by nut, bolt, washer, check nuts of brass complete all as specified and as directed by Engr-in-charge. Note: Copper brazing shall be done upto 20 mtr height. Necessary tool/plant and ladder required for working upto 20 mtr height shall be deemed to be included in the rate quoted for above item.

M&L for GI brazing (welding) at site to connect loop Gl earthing strip of any size after tighten by nut, bolt, washer, check nuts, complete all as specified and as directed by Engr-in-charge. Note: GI brazing shall be done upto 20 mtr height. Necessary tool/plant and ladder required for working upto 20 mtr height shall be deemed to be included in the rate quoted for above item.

S&F new polyplastic earth pit cover 600 X 600 mm (FRP)heavy duty with sign board triangular shape, making connection of earth strip including minor adjustment, construction of rectangular of size 0.75X0.75X0.50 mtr (LXBXH) brick boundary alongwith necessary plastering work with specified colour coding around poly plastic earth pit cover, incl taking down old earthing pit cover complete all as specified and directed by Engineer-in-Charge.

(f) The description/size/Qty of items mentioned in above are for indicative only however the qty/size may very at site condition to maintain the earth resistance less than 03 ohm and as such quoted rates should

be considering the all factors. (g) Testing on completion & achieving resistance less than 03 ohm & submitting report to Engineer-in Charge duly signed by users after successful completion of earthing. (h) If resistance value is found more than 03 ohm, any time after execution upto end of defect liability period contractor has to do needful action within 07 days without any extra cost to bring the value less than 03 Ohm, failing which the cost of the earthing (as quoted by the contractor or prevaling in the market whichever is high) will be recovered from the contractor. (j) Earth strip copper of size 25x3 mm beyond the earthing point will be measured and paid separately under respective item of schedule.

Supply & fix earth continuity conductor or main earthing 32X6 mm dia galvanised iron strip. (roof conductor or down conductor ) above ground level fixed to wall/ roof duly insulated on batten or fixed on new porcelain insulators with clamping device or recessed or chases or burried in groung/ floor or drawn in conduit/ pipe or fixed to poles or any other indicated situation for loop/GI earthing etc as required all as directed by Engg. in charge. Note :- (i) The distance between porcelain insulator will be included with cost of T & P and labour required to work on roof top at lateral faces of existing hangers upto height of 25 mtrs.

Ditto all as per No 10 above but 25x4 mm Gl strip

Ditto all as per No 10 above but 32x6 mm Copper strip.

Ditto all as per No 10 above but 25 x3 mm copper strip.

Supply and fix in repair GI funnel of any type to be fix in existing earth pit. Cleaning of earth chamber is to be taken care complete all as directed by Engr-in-charge.

Supply and fix in repair 25 mm size epoxy type insulator suitable for fixing earthing strip including screw etc all as directed by Engr-in-charge

S&F in repair PCC block Hollow (15cmx15cmx20cm) for fixing of GI/Aluminium/Copper strip with suitable size of insulators on roof top complete all as specified and as directed by Engr-in-Charge.

S&F in repair Air termination, single pointed aluminium rod 12 mm dia and 300mm long lightning arrester, screwed for easy fitment and fixing with base plate with 10 mm holes on four corners for necessary fixing arrangement on top side of PCC block (15cmx15cmx20cm) complete all as specified and as directed by Engr-in-Charge.

M&L for marking of earthing pit (GI eath / Copper earth/ Chemical earth) with two or more coat synthetic enamel paint, colour & pattern as approved by the Engr-in-Charge, Letter size shall not be less than 50 mm complete all as specified & directed

Supply and fix in repair Test point terminal block made of gun metal or phosphorus bronze size of 75 mm x 75 mm x 25 mm drilled and screwed with 3 Nos 8 mm dia 25 mm long screw, fixed in and including SMC junction box of size 170 x 170 x105mm hinged door fixed on wall complete all as specified and as directed.

M&L for PCC earthing pit in PCC 1:2:4 type B-1 of internal size 300 rmm x 300 mm x 300 mm with 120 mm thick wall and 700 mm x 700 mm x 150 mm thick bed concrete and 50 mm thick precast chamber Cover of RCC 1:2:4, type B1 for, reinforced with welded steel wire fabric or XPM Jaali (weight not less than 4.00 Kg/ sqm), complete all as shown in the electrical plate No 3 of SSR part- including demolition of old pit complete.

Supply & Fix 25 x 3 mm aluminium strip (Roof conductor or down conductor) above ground level fixed to wall roof duly insulated fixed on and including new porcelain insulators with clamping device or recessed or chases or burried in ground/ floor or drawn in conduit / pipe or fixed to poles or any other indicated situation or for loop tearthing etc. Note- (i) The consecutive distance between porcelain insulator will not be more than 40 cm. (ii)The quoted rates shall be deemed to be included with cost of T&P and labour required to work on roof top and at lateral faces of existing hangers upto height of 25 Mtrs.

Supply and fixing in repair Unplasticised PVC pipe of pressure rating 10 kg/cm2 of size 15 mm bore (Internal dia) ISI; marked laid in trenches / on floor, ceiling etc including with all fitting such as elbow, union reducer tees bends etc complete all as specified and directed by Engr -in –charge

Supply and fixing in repair Unplasticised PVC pipe of pressure rating 10 kg/cm2 of size 20 mm bore (Internal dia) ISI; marked laid in trenches / on floor, ceiling etc including with all fitting such as elbow, union reducer, tees, bends, etc

Supply and fix in repair 15 mm size UPVC half turn cock valve for UPVC pipe and fixed ISI marked complete all as specified and directed by Engr -in –charge

Supply and fix in repair 20 mm size UPVC half turn cock valve for UPVC pipe and fixed ISI marked complete all as specified and directed by Engr -in –charge

Supply and fix in repair 15 mm size PVC perforated caps screw to end of puff or vent pipe fixed on UPVC pipe and its should ISI marked complete all as specified and directed by Engr -in –charge

M & L for excavation in trenches, n exc 1.5 m wide and n exc 1.5 m in depth, for foundation, / laying of pipe / cable etc. or for shafts, welis, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out 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 using excavated soil all as directed

Removing excavated soil to distance n.exc 50 m and depositing where directed at a level n.exc 1.5m above the starting point all as directed.

Material and labour for boring of holes under road, pavement, hard standing by trenchless technology using ultra sound technique/manually and necessary machine complete all as specified and as directed.

(f) The description/size/Oty of items mentioned in above are for indicative only how ever the qty/size may vary at site: condition to maintain the earth resistance less than 01 ohm and as such quoted rates should be considering the all factors. (g) Testing on completion & achieving resistance less than 01 ohm & submitting report to Engineer-in Charge duly signed by users after successful completion of earthing. (h) If resistance value is found more than 01 ohm, any time after execution upto end of defect liability period contractor has to do needful action within 07 days without any extra cost to bring the value less than 01 Ohm, failing which the cost of the earthing (as quoted by the contractor or prevailing in the market whichever is high) will be recovered from the contractor. (j) Earth strip beyond Earth point (except interconnected) will be measured and paid separately under respective item of schedule.

S &F 70 Sqmm flexible copper cable single core for connecting lighting rod to earthing all as directed.

S&F Detectors Complying with and type certified to EN - 45 Addressable type smoke detector Photoelectric /Optical with base with self built intelligence as per IS: 11360 all as specified and as directed by GE & fixed at location as per direction of Engineer-in-charge.

M&L for Fire Alarm Sounders / Sirens Electronic type horizontal single stage continuous normal operation for at least 50 minutes with sound level 65 DB to 120 DB measured at 1.5 Mtr with sound output variation of +5 DB 500 mtrs range all as specified and directed by GE & fixed at location as per direction of Engineer-in-charge/GE.

M &L for Fire alarm control panel complying with BS EN 54 Single loop panel of capacity from 30 detectors & 30 modules including all testing complete all as specified and directed by Engineer-in-charge.

Supplying and fixing of early steamer emission (ESE) lightening arrester fitted above the structure to be protected. The air terminal should be working on the principle of early steamer emission using no-radioactive technology, needing no external power source. The air termination should be capable of taking the lighting strock 60 micro seconds earlier as compared to passive lightening rod.ESE Comprising of following :- (a) Lightning Protection Rod(s)- 01 Nos Designed & Manufactured using S.S 304 L, Additional Protection : Side Flash Capture Head SFCH, Overall Length is 505 mm, ICMET Certified Conforming to NFC 17 - 102 Δ .At : 60uS CPRI Certified for 200 KA (8/20 uS) | Main Rod Melting Point: 1450°, Weight :3.5 Kgs approx, Radius coverage (79mtr to 107 Mtr Level I to Level IV) (b) Lightning Protection Rod Accessories – A.L.I.C.E Digital - 1 Nos Dimensions Box 80 x 120 x 85 mm Box UV Resistant, Max Reading 9999 9999 Does not require a power; source, Minimum Current (I min): 1KA,Maximum Current ( I max): 100 KA,Enclosure Type : IP 65 Light weight & easy to install and lightning Impulse Counter Tested for dual Polarities. Positive & Negative Can be coupled with both i.e., with Conventional LA's as well as ESE Type LA's Certified and tested by CPRI Bangalore. (c) Lightning Protection Rod Accessories - SLPR Accessories Box - 1 No(s) SLPR Accessories Box - List of items: 70 sqmm Lug Copper lugs 4 Nos,M8 LN Bolt with washer S.S -2 Nos M12 Bolt S.S -8 Nos, M 12 Expansion Bolt GI- 12 Nos LN Key for M8 Bolt – 1 Nos, Cable Tie Nylon - 12 Nos Down Conductor Clip Plastic - 24 Nos,Screw Flakes Plastic -50 Nos

M& L for concealed point wiring complete with FRLSH PVC insulated /unsheathed stranded copper conductor of wire 1.5 Sqmm , 1100 volt grade , alongwith one single core of same size stranded copper as continuous earth wire to common earth dolly in and including stove enameled PVC conduit of 25mm dia fixed in open surface of wall/Pipe including as required with powder coated sheet metal terminal boxes of required sizes and thickness (factory made) sunk in pipe only with 3.0mm thick laminated sheet where as required and accessories complete suitable for One socket outlet 05 Amps on independent board