REPAIR MAINT OF LIGHTNING PROTECTION, EARTHING ALONGWITH OTHER CONNECTED E/M WORK AT ARDE LAB UNDER GE(I) RnD PASHAN

Material and labour for Testing of conventional / chemical type earthing for lightning protection system / PSDS / ESDS system 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 1 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) The quoted rate deemed to include 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 shall be bear by contractor. Nothing extra will be paid for any damage/ loss by the department.

S&F earth pit indicator board made out of 300 x 300 x 3 mm MS sheet fixed on and including 25 x 25 x 3 mm angle Iron post 1 metre length with PCC 1:2:4 type B1 foundation block of size 200m x 200m x 300 mm using 20mm graded stone aggregate and painting exposted surface of steel with two coats of synthetic enamel paint over coat of red oxide primer and writing letter of size nexc 60mm height complete all as specified and directed by Engineer - in - charge. The indicator should indicate the following :- (i) Earth Pit No. (ii) Earth result in Ohms (iii) Date of testing

Taking down / dismantling existing perished aluminium strip of any size from any height 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 any size obtained from sl item No 3 above, at any type of building / magazine / 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 aluminium strip in of size 25x3.15 mm fixed on wall / roof along with insulator and PCC block with epoxy based insulator of 35mm 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 : Insulator & PCC block shall be measured and paid separately.

Taking down / dismantling existing perished GI strip of any size from on walls / buried in to ground of conventional type lightening protection network system complete all as specified and directed.

Re-fixing serviceable GI strip of any size as obtained from as per sl item No 6 above, at any type of building / magazine lab at any height including any type on walls 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 as directed by Engr-in-Charge. Note : Epoxy base insulator shall be measured and paid separately.

Taking down / dismantling existing perished copper strip of any size from 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 any size mm as obtained from as per sl item No 9 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 mm fixed on insulators at any height on roof top 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.

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

Material and labour for PCC block of size 150 x 150 x 150mm of PCC (1:3:6) type C-1 using 20mm stone graded 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 200 x 170 x 120mm 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 in repair air termination single pointed aluminium rod of 12 mm dia 300 mm long fixed to aluminium strip 25 x 3.15 mm including drilling holes, nuts, bolts washers for resting/ supporting of air terminals etc., complete all as specified and directed. Note :- (i) Unit rate quoted is deemed to be inclusive the cost of one lead joint and 2 Nos GI nuts, bolts washers, screws and necessary T&P and machining work required at site. (ii) Rate should be included by contractor for site clearance including removing hurbs/ shrub and trimming of tree whereever required. (iii) 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 shall be bear by contractor. Nothing extra will be paid for any damage/ loss by the department.

Supply and fix in repairs GI funnel suitable for earthing complete all as specified and directed.

Material and labour for PCC Earth pit alongwith PCC cover of inner size 300x300mm in half brick work with plaster including precast PCC 1 : 2 : 4 type B0 (using 12.5 mm graded crushed stone aggregate ) as in pit cover complete all as specified and directed..

S&F in repairs GI tubing light grade of size 40mm bore for connecting to air termination rod/ protection to GI strip complete including brackets fixed to wall, roof or laid in floors complete all as specified and directed.

Supply and fix in repairs of LED street light /road way luminaries 70 watts with pressure die cast housing heat sink with IP 66 protection, interchangeable electronic driver high efficiency longer life, protection against high surges, high /low voltage cutoff, open/short circuit protection and high power factor LEDs as light source including fitted on existing street light pole bracket complete all as specified and as directed.

Supply and fix in repairs of LED street light /road way luminaries 90 watts with pressure die cast housing heat sink with IP 66 protection, interchangeable electronic driver high efficiency longer life, protection against high surges, high /low voltage cutoff, open/short circuit protection and high power factor LEDs as light source including fitted on existing street light pole bracket complete all as specified and as directed.

Supply and fix in repairs of LED street light /road way luminaries 150 watts with pressure die cast housing heat sink with IP 66 protection, interchangeable electronic driver high efficiency longer life, protection against high surges, high /low voltage cutoff, open/short circuit protection and high power factor LEDs as light source including fitted on existing street light pole bracket complete all as specified and as directed.

Supply and fix in repairs LED flood light 150W energy saving, environmental friedly long life exlusive innovative die-cast aluminium flood light with highway efficent LED as light souce suitable for highlithing architectural features complete all as specified and directed

Supply and fix in repairs LED flood light 200W energy saving, environmental friedly long life exlusive innovative die-cast aluminium flood light with highway efficent LED as light souce suitable for highlithing architectural features complete all as specified and directed

Supply, lay, connect, testing and commissioning of LT underground 16 Sqmm 4 core cable 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) including takng down existing unserviceable cable all as directed by the Engr-in-Charge. Notes : (i) Excavation, sand cushioning, brick will be measured and paid separately under relavant item.

Supply, lay, connect, testing and commissioning of LT underground 300 Sqmm 3.5 core cable 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) including taking down existing unserviceable cable all as directed by the Engr-in-Charge. Notes : (i) Excavation, sand cushioning, brick will be measured and paid separately under relavant item.

Supply, lay, connect, testing and commissioning of LT underground 400 Sqmm 3.5 core cable 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) including taking down existing unserviceable cable all as directed by the Engr-in-Charge. Notes : (i) Excavation, sand cushioning, brick will be measured and paid separately under relavant item.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable upto 35 Sqmm 1.1 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required. Note : (i) Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre deep in any type of soil. (ii) Returning, filling in including spreading, leveling, watering and well ramming in layers not exceeding 25cm in soil layers. (iii) Removing surplus excavated soil to a distance not exceeding 50metre depositing where directed. (iv) Riddled earth filling in trenches to required width 18cm before laying the cable and 15cm after laying the cable and punned down in 18cm thicker. (v) Supply and lay in trenches un-reinforced precast concrete cable cover class LV, Type I, flat, size 250mm x150mm x 40mm for cable protection

Laying of one number PVC insulated and PVC sheathed / XLPE power cable 185 Sqmm and upto 400 Sqmm 1.1 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required. Note : (i) Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre deep in any type of soil. (ii) Returning, filling in including spreading, leveling, watering and well ramming in layers not exceeding 25cm in soil layers. (iii) Removing surplus excavated soil to a distance not exceeding 50metre depositing where directed. (iv) Riddled earth filling in trenches to required width 18cm before laying the cable and 15cm after laying the cable and punned down in 18cm thicker. (v) Supply and lay in trenches un-reinforced precast concrete cable cover class LV, Type I, flat, size 250mm x150mm x 40mm for cable protection

Supply and fix in repairs pole junction box sheet moulded compound (SMC) type with hinged door and locking arrangement of size 250 x 200 x 100mm (internal) comprising, one No MCB single pole of capacity 6 Amps 240 volts and one No terminal for loop in & loop out suitable for three phase street light system including nuts and bolts and connecting up complete, including MS clamp fabricated out of MS flat of size 25x3mm all as specified and directed.

Supply and fix in replacement 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 eqaully distributed over 3-phase .Contactor Rating: 40Amps (4-pole ),MCB (single-pole) Rating: 40Amps (3 nos.) complete all as specified and directed. Nature Switch: Kakatiya Energy Systems Pvt. Ltd. Hyderabad (E-in-C Approved) Contactor: BCH/L&T/Schneider, MCB: Hager/Schneider/Legrand/L&T complete all as specified and directed. Make:SWADEEP – 02EC 8kW1P.

Material and labour for earthing with galvanised steel earth plate electrode 600mm x 600mm x 6 mm thick buried directly in ground earth pit not less than 2.25 M deep below ground level with top edge of the plate not less than 1.5 M below normal ground level connected to galvanised strip 32mm x 6mm 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 chamber including necessary formwork / mould for fair and even surfaces, precast RCC 1:2:4 type B0 chamber cover slab, GI funnel, with GI watering pipe 20 mm bore med gde, wire mesh, protection pipe 40 mm bore GI pipe light gde for earth lead upto 7.50 m long including testing complete all as specified and directed by Engineer-in-Charge. Note : (i) GI strip beyond 7.5 mtr 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 600mm x 600mm x 3 mm thick burried directly in ground earth pit not less than 2.25 mtr deep below ground level with top edge of the plate not less than 1.5 m below normal ground level connected to copper strip 20mm x 3mm 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 including necessary formwork mould for fair and even surfaces including with precast RCC chamber cover slab (1:2:4) type B0 without GI protection pipe specified and directed by Engineer-in-charge. Note : (i) Copper strip beyond 7.5 mtr 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, 17.20mm dia copper bonded 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. 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. 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 in repairs 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 in repairs 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 in repairs 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. 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.