REPAIR MAINTENANCE OF LIGHTNING PROTECTION EARTHING INCLUDING OTHER MISC EM WORK AT ARDE UNDER GE RD PASHAN

Amount

Taking down / dismantling existing perished aluminium strip of size 25 x 3 mm at any hight of roof top/ on walls of conventional type lightening protection network system complete all as specified and as directed.

Re-fixing of serviceable aluminium strip of size 25 x 3 mm obtained from sl item No 1.0 above at any type of building/ magzine/ lab at any height including any type of walls and jointing the system of conventional type lightening protection network and making good the disturbed surface of walls / roof top to match with existing surface complete all as specified and as directed.

Material and labour for aluminium strip of size 25x3 mm fixed on wall/on insulator and PCC block with epoxy based insulator of 35 mm size at distance / interval not more than 1.0 metre 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 specified and directed. Note : Epoxy based insulator & PCC block shall be measured and paid separately.

Taking down / dismantling existing perished GI strip of size 32 x 6 mm from walls / from ground of conventional type lightening protection network system complete all as specified and as directed.

Re-Fixing serviceable GI strip of size 32 x 6 mm as obtained from as per sl item No 4.0 above, at any type of building/ magzine/ lab at any height fixed on walls and jointing the system of conventional type lightening protection network and making good the disturbed surface of walls / roof top match with existing surface complete all as specified and as directed.

Material and labour for galvanised iron strip of size 32 x 6 mm burried in ground or fixed on wall with suitable 35 mm size epoxy base insulator fixed on wall / floors fixed at distance / interval not more than 1.0 metre and connected to test point including bending, jointing at test points with 2 Nos GI nuts, bolts, with lead washers, jointing strips at all joints complete all as specified and as directed by Engr-in-Charge. Note : Epoxy based insulation and PCC block shall be measured and paid separately.

Taking down / dismantling existing perished copper strip of size 20 x 3.15mm at any height of roof top / on walls of conventional type lightening protection network system complete all as specifiec and as directed.

Re- fixing serviceable copper strip of size 20 x 3.15 mm as obtained from as per sl item No 7.0 above, at any type of building/ magzine/ lab at any height including any type on walls and jointing the system of conventional type lightening protection network and making good the disturbed surface of walls / roof top match with existing surface complete all as specified and as directed.

Material and labour for copper strip of size 20 x 3.15 mm fixed on existing PCC block at any height on roof top/ on existing insulators any type on walls including jointing the system of conventional type lightening protection network and making good the disturbed surface of walls / roof top to match with existing surface complete all as specified and as directed.

Material and labour for Testing of conventional type lightning protection system/ Earth testing/ Static Earth Resisitivity to floor complete all as specified and directed here as under in Techanical Area/ Lab / Magzine bldgs inside ARDE Complex :- (a) Before testing a visual check to be carried out jointly by the contractor, Engr-in-Charge and rep of users for the mechanical condition of all conductors, bonds, joints. (b) Testing continuity and resistance of conductors, ohmic resistance of lightning conductor system complete with air termination but without the earth electrode connection and recording results. (c) Testing of each earth electrode point without continuity conductors, air termination and ring conductor. (d) Testing the resistance to earth of the whole installations with all earth electrodes continuity, conductors, air termination and bonding of other services and results are to be recorded. (e) The results are to be recorded in a prescribed format duly signed by contractor, Engr-in-Charge and rep of users and to be submitted by contractor in triplicate. Notes : (i) The testing mentioned above against 1 (b) to (e) will be conducted only after rectifying the defects observed during visual check. (ii) M&L required for rectification of defects observed will be measured and paid separately under relevant items of sch 'A'. (iii) Unit rate quoted is deemed to be inclusive of writing board in white colour letters n.exc. 2 cm height on the black colour back ground on wall such as - Tested on, Due date of testing, E.g. EP No., ER in ohms. EP No. should be mentioned on individual earth pits and ER value of installation etc. all as specified and directed by Engr-in-Charge. (iv) Contractor has to arrange necessary testing instruments of suitable range duly latest calibrated (certificates to be produced). The rate quoted is deemed to be include the above provision. (v) If ohmic resistance value exceeds 2 ohm the system to be rectified by cleaning with CRC solution, tightening, replacement of bolts / nuts, rivets, etc; to get value below 1 ohm. (vi) In case resistance value of earthing exceeding more than 5 ohms, the existing earthing to be replaced and same shall be measured and paid under appropirate item here-in-after. (vii) Rate should be included by contractor for working with any height i.e lighting protection of admin building ARDE and All safety equipment and risk cover of man power deployed during work will be bear by contractor. Nothing extra will be paid for any damage/ loss by the department.

Supply only epoxy base insulator of suitable size, 35mm height for fixing on PCC blocks/ wall or MS angle/ Pipe or on traverse etc. complete all as specified and directed by Engineer-in-Charge.

Material and labour for PCC block of size 150 x 150 x 150mm in PCC (1:3:6) type C-1 using 20mm graded crushed stone aggregate including necessary form / mould for fair and even surfaces, for fixing air termination rod / GI strip etc., complete all as specified and directed.

Material and labour for dismantling of existing inspection box of any material shape and size including supply and fixing of new inspection box / cover box of size 250 x 150 x 100mm made out of 2 mm thick MS sheet with hinged front opening cover including provision of fixing 2 Nos epoxy insulators and insulating PVC sheathed for incoming and outgoing aluminium / GI strips for proper insulation etc compelte all as specified and directed by Engineer-in-Charge.

Supply and fix air termination single pointed aluminium rod of 12 mm dia 300 mm long fixed to aluminium strip 25 x 3 mm including drilling holes, nuts, bolts washers for resting/ supporting of air terminals etc., including taking down existing unserviceable rod complete all as specified and directed.

Supply and Fix air termination single pointed copper rod of 12 mm dia 600 mm long fixed to aluminium strip 25 x 3 mm including drilling holes, nuts, bolts washers for resting/ supporting of air terminals etc., including taking down existing unserviceable rod complete all as specified and directed. Note for item Nos. 1 0 to 14.0 : (i) Epoxy base insulator and PCC block only will be measured and paid separately (ii) Unit rate quoted is deemed to be inclusive cost of one lead joint and 2 Nos GI nuts, bolts washers, screws and necessary T&P and machining work reuired at site. (iii) Rate should be included by contractor for site clearance including removing hurbs/ shrub and trimming of tree whereever required. (iv) Rate should be included by contractor for working with any height i.e lighting protection of admin building ARDE and All safety equipment and risk cover of man power deployed during work will be bear by contractor. Nothing extra will be paid for any damage/ loss by the department.

Material and labour for GI funnel suitable for earthing complete all as specified and directed.

Material and labour for precast earth pit cover RCC (1:2:4) type B0 using 12.5 mm graded stone aggregate fo size 300x300x300 mm compete all as specified and directed.

Material and labour for GI tubing light grade of size 40 mm dia for connecting to air termination rod / protection to GI strip including Brackets for fixing complete all as specified and directed.

Material and labour for earthing with galvanised steel earth plate electrode 600 x 600 x 6 mm thick buried directly in ground earth pit not less than 2.25 Metre deep below ground level with top edge of the plate not less than 1.5 Metre below normal ground level connected to galvanised strip 32 x 6 mm by means of nuts, bolts, check nuts, washers of galvanised iron or steel all as shown in electrical plate No. 03 of SSR Part I connected to earthing test point including excavation/ earth work in any type of strata, removal of surplus excavated material, GI pipe for watering and funnel, PCC 1:3:6 type C1 use 20 mm graded stone aggregate chamber including necessary formwork / mould for fair and even surfaces, precast RCC 1:2:4 type B0 use 12.5 mm graded stone aggregate chamber cover slab, GI funnel, with GI watering pipe 20 mm bore medium graded, wire mesh, protection pipe 40 mm bore GI pipe light grade for earth lead upto 7.50 metre long salt, charcoal including testing complete all as specified and directed by Engineer-in-Charge. Note : (i) GI strip beyond 7.5 metre will be measured and paid sepeartely. (ii) Test report shall be prepared and submitted by the contractor in triplicate duly obtaining signatures of MES JE / AGE & PMG / user. Test results are to be written in letters of 20mm height in white colour on black paint back ground. (iii) The earth resistance should be less than 2 Ohm.

Material and labour for earthing with copper earthplate electrode 600 x 600 x 3.15 mm thick burried directly in ground earth pit not less than 2.25 metre deep below ground level with top edge of the plate not less than 1.5 metre below normal ground level connected to copper strip 20 x 3 mm by means of nuts, bolts, checknuts, washers of galvanized iron or steel all as shown in electrical plate No.3 of SSR part-I connected to earthing test point including excavation / earth work in any type of starta PCC (1:3:6) type C1 use 20 mm grade stone aggregate including necessary formwork mould for fair and even surfaces including with precast RCC chamber cover slab (1:2:4) type B0 use 20mm graded stone aggregate without GI protection pipe including salt, charcoal complete all as specified and as directed by Engineer-in-charge. Note : (i) Copper strip beyond 7.5 metre will be measured and paid sepeartely. (ii) Test report shall be prepared and submitted by the contractor in triplicate duly obtaining signatures of MES JE / AGE & PMG / user. Test results are to be written in letters of 20mm height in white colour on black paint back ground. (ii) The earth resistance should be less than 2 Ohm.

Material and labour for Earthing complete with hot dip copper electrode, 25mm dia pure copper hollow earthing rod with strip in pipe design 3 metre long and having copper terminal of 100x50x5 mm on inner pipe to connect earthing strip with holes and nut bolts. buried directly and vertically in ground with top edge at 30 cm below ground level after making bore hole of 100 mm dia and 3.5 metre deep using suitable mechanical drilling machine (for drilling near the specified bldg) connected with copper strip with minimum two Nos of copper/brass nut, bolts and connected to test point from earthing pit. The electrode pipes should be filled with 2x 25 Kg bags of carbon based earthing compound. The compound shall be highly conductive, hygroscopic, non magnetic, non corrosive in nature and have best moisture retaining qualities! with ph value between 7 to 9, connected to the earthing test point, fiber reinforced plastic pit not less than 300x300x240 mm with pit cover, including necessary returning, filling and removal of extra soil complete all as specified and as directed. MAKE:- U-Protect/ Fast Electrode / Ashlok NOTE: (i) copper strip will be measured and paid sepeartely. (ii) Resistance of earthing should not more than 2 Ohm. Test report shall be prepared and submitted by the contractor in triplicate duly obtaining signatures of MES JE / AGE & PMG / user. Test results are to be written in letters of 20mm height in white colour on black paint back ground. If the desired result not obtained after testing, the contractor should do re-eathing without any extra cost to Govt.

Material and labour for Earthing complete with hot dip galvanized steel pipe in pipe electrode, outer pipe 76 mm dia medium grade and inner pipe 32 mm dia including testing. 3 metre long and having 50x6 mm terminal on inner pipe to connect earthing strip with 14 mm dia holes for nut bolts. buried directly and vertically in ground with top edge at 30 cm below ground level after making bore hole of 100 mm dia and 3.3 metre deep using suitable mechanical drilling machine (for drilling near the specified bldg) connected with galvanized steel earthing lead of 32 x 6 mm strip with minimum two Nos of GI nut, bolts and connected to test point from earthing pit. The electrode pipes should be filled with 2x 25 Kg bags of carbon based earthing compound. The compound shall be highly conductive, hygroscopic, non magnetic, non corrosive in nature and have best moisture retaining qualities! with ph value between 7-9, connected to the earthing test point, fiber reinforced plastic pit not less than 300x300 mm with pit cover, including necessary returning, filling and removal of extra soil compete all as specified and directed. MAKE:- U-Protect/ Fast Electrode / Ashlok NOTE: (i) GI strip beyond 7.5 mtr will be measured and paid sepeartely. (ii) Resistance of earthing should not more than 2 Ohm. Test report shall be prepared and submitted by the contractor in triplicate duly obtaining signatures of MES JE / AGE & PMG / user. Test results are to be written in letters of 20mm height in white colour on black paint back ground. If the desired result not obtained after testing, the contractor should do re-eathing without any extra cost to Govt.

Supply and Fix copper plate 600x600x3mm thick fixed to floor by means of brass nut/bolt and duty connected to existing ESDS system with copper strip 25x3.15mm including taking down existing unserviceable copper plate complete all as specified and directed.

Supply and Fix copper plate 150x150x3 mm thick with 1 round solid copper bar 20mm dia & 150 mm long brazed or threaded & fixed in the centre of the plate for mannual electrostatic discharge & fixed on existing wall at height of 1.5 metre and connected with copper strip 25x3.15mm including taking down existing unserviceable copper plate complete all as specified and directed.all as directed.

Material and labour for Tripod Earthing (Set of 3) complete with hot dip galvanized steel pipe in pipe electrode, outer pipe 76 mm dia medium grade and inner pipe 32 mm dia including testing. 3 metre long and having 50x6 mm terminal on inner pipe to connect earthing strip with 14 mm dia holes for nut bolts. buried directly and vertically in ground with top edge at 30 cm below ground level after making bore hole of 100 mm dia and 3.3 metre deep using suitable mechanical drilling machine (for drilling near the specified bldg) connected with galvanized steel earthing lead of 32 x 6 mm strip with minimum two Nos of GI nut, bolts and connected to test point from earthing pit. The electrode pipes should be filled with 6x 25 Kg bags of carbon based earthing compound. The compound shall be highly conductive, hygroscopic, non magnetic, non corrosive in nature and have best moisture retaining qualities! with ph value between 7 to 9, connected to the earthing test point, fiber reinforced plastic pit not less than 300x300 mm with pit cover, including necessary returning, filling and removal of extra soil. The three earthings to be separated by minimum distance of 3 meter. All three earthings of tripod to be interconnected by GI strip of 32x6mm complete all as specified and directed. MAKE:- U-Protect/ Fast Electrode / Ashlok NOTE: (i) GI strip beyond 21 metre will be measured and paid sepeartely. (ii) Resistance of earthing should not more than 2 Ohm. Test report shall be prepared and submitted by the contractor in triplicate duly obtaining signatures of MES JE / AGE & PMG / user. Test results are to be written in letters of 20mm height in white colour on black paint back ground. If the desired result not obtained after testing, the contractor should do re-eathing without any extra cost to Govt.

Supply, lay, connect, testing and commissioning of LT underground cable of size 400 Sqmm 3.5 core, XLPE insulated, armoured heavy duty electric cable with aluminium multi stranded aluminium conductor heavy duty 1100 Volts grade in trenches/on wall/poles laid in ducts/inside protection pipe including cable glands, lugs and suitable size of MS saddle clips (where ever cable laid in ceilings/walls without cable duct) all as directed by the Engr-in-Charge including taking down existing unserviceable cable. Notes : (i) Excavation, sand cushioning, brick will be measured and paid separately under relavant item . (ii) Cost of jointing material e.g. lugs, thimbles, nut bolt and washers glands shall include in quoted rates.

Supply and lay in trenches reinforced precast concrete cable cover class LV, Type I, flat, size 250 mm x150mm x 40mm for cable protection complete all as specified and directed by the Engr-in-Charge.

Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre deep for taking out/laying of HT/ LT under ground cable and getting out in the following type of earth stata complete all as specified and as directed:- (a) Soft/ loose soil

(b) Hard/ dense soil

(c) Soft Disintegrated rock

(d) Hard Rock

Returning, filling in including spreading, leveling, watering and well ramming in layers not exceeding 25cm in soils complete all as specified and directed.

Removing surplus excavated soil to a distance not exceeding 50metre depositing where directed at a level not exceeding 1.5metre above the starting point complete all as specified and directed.

Material and labour for riddled earth filling in trenches to required width at bottom and top of cable cusioning including spreading leveling and consolidation complete all as specified and as directed. Note : Punned thickness shall measured and paid.

Supply, install, testing and commissioning of LT Panel Board CPRI approved cubical with kyosk type made of 3.15 mm thick outdoor type with IP 65 grade of protection CRCA sheet, powder coated, with support of 50mm x 50mm x 6mm angle iron bottom frame with double hinged front openable shutters of each feeder control unit with locking arrangement in front and back openable inspection doors heat shrink PVC sleeved aluminium bus bar of capacity 800 Amps, 3 Phase, 4 wire, for each phases and neutral fixed on suitable insulator all housed in suitable bus bar chamber and provision and fixing of multifunction meter, CTs of suitable ratio, and LED pilot indication lamps complete along with provision of necessary cable entry/exit boxes for all incoming and out going cables with providion of hoes for cable glands etc fixed on suitable PCC foundations, testing on comletion complete all as specified and directed and shall be comprising of the following including taking down existing unserviceable Panel Board :- Incomer/Outgoing: MCCB with thermal magnetic Release range 500 Amps, 4 pole, 50 KA breaking capacity - 01 No, coloured heat shrinkable PVC insulated Aluminium bus bar 800 amps, 3 Phase, 4 wire, LED Pilot lamps (R,Y & B)-01set, LED Digital Multi function meter with CTs- 01 No, extended Rotary handles & spreder terminals for all MCCBs.

Supply install testing and commissioning of 22 KV outdoor type Polymer based gang operated air brake switch triple pole, suitable for verticle mounting complete , GI operating rod of suitable length for operating mechanism worked from ground level complete in both OFF and ON positions, for current rating upto 200 Amps,each pole consist of galvanised steel base HT insulators as per BSS/ISS non ferrous knife and spring loaded contacts, arcing horns of adequate section to brake magenetizing current of the transformers. All ferrous parts hot dipped galvanised and non ferrous parts suitably tinned to withstand weather including taking down existing unserviceable air break switch compete all as specified and directed.

Supply, testing and commissioning of HT underground cable of size 95 sq mm, 3 core, XLPE insulated, armoured heavy duty electric cable with aluminium multi stranded conductor, heavy duty, 22000 Volts grade laid in trenches, fixed on wall etc with necessary lays, glands and jointly materials including taking down existing unserviceable cable compete all as specified and directed. Note (i): Cost of jointing material such as lugs/ thimbles, nut bolt, gland and washers shall be included in quoted rates. (ii) Excavation, sand cushioning, brick will be measured and paid separately under relavant item.

Material and Labour for outdoor type end termination joint kit, heat shrinkable, type, for under ground cable including joint kits and labour complete for making joints suitable for aluminium conductor cable XLPE, 3 core, 95 sqmm, 22 KV complete including taking down existing unserviceable joint all as specified and directed by Engr-in-charge.

Supply and fixing Polymer based dropout fuse unit complete set suitable and including for 22 KV, HT outdoor and dropout type of capacity 200 Amps including jumper connections with copper flexible designed jumper and testing and commissioning complete including taking down existing unserviceable drop out fuse all as per the directions of Engr-in-charge.

Supply and fix in repair Automatic Street Light Switch using NATURE SWITCH for automatic switching of Street Lights based on LUX level of Natural Light. The Sensor (Nature Switch) along with suitable Power Contactor, MCB and Support Terminals should be enclosed in pole/wall mountable Enclosure made of Rust Proof, Electric Shock Proof, Termite proof and FR grade special moulding compound (Sintex make SMC Junction box) conforming to IP54.The Contactor, MCB and Circuit Wiring should suitable enough to take load of 12 kW load equally distributed over 3-phase .Contactor Rating: 40.Amps (4-pole).MCB (single-pole) Rating: 40.Amps (3 nos.) Nature Switch: Kakatiya Energy Systems Pvt. Ltd. Hyderabad (E-in-C Approved) Contactor: BCH/L&T/Schneider Make:SWADEEP – 02EC-8kW3P

Supply and fix in repair 15 watt recess mounted downlighter with pressure die cast aluminiun heat shink & PC diffuser in white powder coated finish with integral electronic low THD LED driver including any modification required in ceiling work complete all as specified and as directed.

MAYUR ELECTRIC SERVICES

ASHA ASSOCIATES

GANGA ENTERPRISES

SOURABH ENGINEERS

YOGESH ELECTRICALS

CHAITANYA WINDWELL