REPAIR/MAINT OF EARTHING LIGHTENING ARRESTOR LIGHTENING STRIP EARTHING DIRECTION BOARD EARTHING RECHARGING REPAIR OF EARTHING PITS AND ALLIED CONNECTED ITEMS AT 24 ED AF STN MANAURI

Amount

S&F for plug type bib taps, cast iron, screwed for iron pipe and fixed for 15 mm dia pipe including taking down old unsv bib taps and complete all as specified and directed.

S&F for 8 mm Aluminum Round Conductor complete meeting the requirements of DIN EN 50164-2 (VDE 0185 part 202) & VDE 0185-305 (IS/IEC 62305) including taking down old unsv aluminium strip/round conductor complete all as specified & directed.

S&F for Roof conductor holder for sheet , Bottom section stainless steel (V2A) with bottom section Ø 8.5 mm slot made of Conductor holder of polyamide @ every 1mtr distance including taking down old unsv Roof conductor holder complete all as specified & directed.

S&F for cross universal connector for T and cross connection, to route vertical down conductor /mesh formation made of hot dipped galvanised iron with necessary screws etc as required including installation with 4 hexagonal bolts M8*25 with M8 hexagonal nuts including taking down old unsv cross universal connector complete all as specified & directed.

S&F for expansion piece with connector for equalising temperature related length changes with necessary on conductors length over 20 meters, for round conductor Rd 8/ALU including taking down old unsv expansion piece with connector complete all as specified & directed.

S&F for T cross and parallel connectors & quick installation using hexagonal bolt M10X30 high-grade hot dip galvanised & conforming to the requirements according to DIN VDE 0185-305 (IS-IEC 62305)(2nos/expansion piece ) c including taking down old unsv T cross and parallel connectors complete all as specified & directed.

S&F for Polyamide Roof conductor holder for parapet with M8 female thread or diameter 7mm, M8 Screw to connect the conductor holder, weather and temperature resistant from -35 to +90 degree Celsius tested. Conductor holder @ 1 meter distance including taking down old unsv Polyamide Roof conductor holder complete all as specified & directed.

S&F for Test Joint (Folding Clamp) made of SS, suitable to connect 8mm round conductor and max by 30x3 mm GI strip including taking down old unsv test Joint (Folding Clamp) made of SS complete all as specified & directed.

S & F Galvanised Steel Flat 30X3 mm thickness from earth electrode burried directly in ground as required, flat conductor shall be of Hot Dipped & Cross sectional area of 90mm square according to DIN EN 50164-2 (VDE 0185 part 202) with meeting the requirement of VDE0185/305(IS-IEC 62305) Zinc coating: 500 g/m square (Approx :70 micron coating) should be tested and used exclusively for lightning protection earthing system and ring equipotential bonding including taking down old unsv Galvanised Steel Flat 30X3 mm thickness complete all as specified & directed.

S&F for Cross connector for Flat with out adaptor plate FT suitable for FL 30mm x FL 30 mm or max FL 40 mm x FL 40 mm without adapter plate Galvanised steel strip & installation with 4 nos of hexagonal plate size M8 x 25 and 4 hexagonal nuts M8 (F) including taking down old unsv Cross connector for Flat with out adaptor plate complete all as specified & directed.

S&F for flat conductor holder suitable for FL 30 & Installation with 2 hexagonal bolts including taking down old unsv flat conductor holder suitable for FL 30 complete all as specified & directed.

S&F for Plastic Corrosion Protection strip of approx 1.1 mm thick, width 50mm made of petrolatum- coated chemical fibre fabric including taking down old unsv Plastic Corrosion Protection strip complete all as specified & directed.

S&F for UL Listed & CPRI Tested maintenance free ,Low carbon copper coated earth rod of 3 metre electrode having diameter of 17.2 mm with copper coating thickness of 250micron tested as per IEC 62561-2 including taking out old unsv earthing all as directed by Engr-in-Charge.

S&F for Universal clamp made of SS to connect rod with flat conductor including taking down old unsv Universal clamp made of SS complete all as specified & directed.

S&F for Earth conductivity enhancing compound shall be of 25 kg/pit tested as per IEC 62561-7,TCLP tested complete all as specified & directed.

S&F for Heavy duty earth champers of 5000kg load bearing capacity to ensure the safety of earthing system complete all as specified & directed.

S&F for Air termination single pointed aluminium rod 12 mm dia and 300 mm long including taking down old unsv Air termination complete all as specified & directed.

S&F for test point terminal block made out of gun metal or phosphorus bronze of size 75mm x 75mm x 25mm drilled and screwed including 3 Nos 8mm dia 25mm long hexogonal head screw including taking down old unsv test point complete all as specified & directed.

S&F for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or fixed to pole or any other indicated situation for loop earthing etc as required of size 32 x 6 mm galvanised iron strip complete with saddle type porcelain type insulator for holding to Strip including taking down old unsv earth continuity conductor of size 32 x 6 mm galvanised iron strip complete all as specified & directed.

S&F for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or fixed to pole or any other indicated situation for loop earthing etc as required of size 25 x 3.15 mm aluminium strip complete with saddle type porcelain type insulator for holding to Strip including taking down old unsv earth continuity conductor of size 25 x 3.15 mm aluminium strip complete all as specified & directed.

S&F for high density polythene pipe (HDPE) pipe PN10 50mm bore suitable for 6 kgf/sqcm working pressure laid in trenches for protection of GI strip from test point to top level of earthing including taking down old unsv HDPE pipe complete all as specified & directed.

S&F for PVC flexible conduit 32 mm dia on wall/ top of roof/ roof sheet for providing isolation to aluminium strip from wall/ metal sheet on roof including taking down old unsv conduit pipe complete all as specified & directed.

S&F for fabrication, installation sign board indentifier / marker ( 30cm x 20cm board Preferably metallic in Oval shape) of 22 SWG and stand of made out of angle iron of size 40 x 40 x 6mm thick of length 90cm (60 cm above ground level) and duly painted with two coat of synthetic enamel paint of RED colour for background over a coat of red oxide primer and marked 'LA' letters of size 1 inch height in black paint text as directed and to be grouted 2 feet from the ground level including all excavation and earth work. It will mention the type of earthing, number of the earth pit and the total number of particular type of earthing for that building equipment. For example, a lightening earth pit can be marked as LA 1/4 which means lightening arrester EP No 1 out of 4 LA earth pits for the building complete all as specified and directed.

S&F for fabrication, installation sign board indentifier / marker ( 30cm x 20cm board Preferably metallic in half oval with half rectangle shape) of 22 SWG and stand of made out of angle iron of size 40 x 40 x 6mm thick of length 90cm (60 cm above ground level) and duly painted with two coat of synthetic enamel paint of YELLOW colour for background over a coat of red oxide primer and marked 'SG' letters of size 1 inch height in black paint text as directed and to be grouted 2 feet from the ground level including all excavation and earth work. It will mention the type of earthing, number of the earth pit and the total number of particular type of earthing for that building equipment. For example, a Signal earthing pit can be marked as SG 1/4 which means signal earthing SG No 1 out of 4 SG earth pits for the building complete all as specified and directed.

S&F for fabrication, installation sign board indentifier / marker ( 30cm x 20cm board Preferably metallic in rectangle shape) of 22 SWG and stand of made out of angle iron of size 40 x 40 x 6mm thick of length 90 cm (60 cm above ground level) and duly painted with two coat of synthetic enamel paint of YELLOW colour for background over a coat of red oxide primer and marked 'SG' letters of size 1 inch height in black paint text as directed and to be grouted 2 feet from the ground level including all excavation and earth work. It will mention the type of earthing, number of the earth pit and the total number of particular type of earthing for that building equipment. For example, a Signal earthing pit can be marked as SG 1/4 which means signal earthing SG No 1 out of 4 SG earth pits for the building complete all as specified and directed.

S&F for fabrication, installation sign board indentifier / marker ( 25 cm x 25 cm board Preferably metallic in triangle shape) of 22 SWG and stand of made out of angle iron of size 40 x 40 x 6mm thick of length 90cm (60 cm above ground level) and duly painted with two coat of syenthetic enamel paint of RED colour for background over a coat of red oxide primer and marked 'EQ' letters of size 1 inch height in black paint text as directed and to be grouted 2 feet from the ground level including all excavation and earth work. It will mention the type of earthing, number of the earth pit and the total number of particular type of earthing for that equipment. For example, a equipment earthing pit can be marked as EQ 1/4 which means equipment earthing EQ No 1 out of 4 EQ earth pits for the equipment complete all as specified and directed.

M&L for Earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6 mm thick surrounded with charcoal and salt, buried directly in ground (earth pit not less than 2.25 metre deep below ground level) with top edge of plate not less than 1.5 metre below normal ground level connected to galvanized earth lead using GI earth strip in size 32 x6 mm means of bolts, nuts, check nuts and washers of galvanized iron or steel all as shown in electrical Plate No 3 of MES SSR Part-I connected to main switch board or main control board including taking down old earthing all as specified and testing on completion including provision of earth wire protected by galvanized iron 15 mm dia light grade pipe and watering pipe shall be 20 mm bore light grade including all excavation and earth work in any type of soil, PCC pit with pre-cast RCC cover, charcoal/salt, funnel etc complete all as directed.

(i) The concrete pit shall be PCC 1:3:6 type C-1, 40 mm thick pre cast cover slab of RCC (1:2:4) type B-1 using 20mm graded stone aggregate reinforced with 8mm TMT bars @ 10 cm C/C on both sides with suitable cast iron handle shall be provided in lieu of cast iron cover shown in electrical plate No 3 of MES SSR Part-I.

(ii) Item includes the cost of 7.50m GI pipe and protection of earth strip. Any variation in length shall be paid separately under respective items hereinafter.

(iii) PCC pit shall be provided at least 500 mm away from the pit and not on the earth pit itself and the extra cost of additional length of watering pipe, bends, elbow etc shall be deemed included in the unit rate.

(iv) Note: Quoted rate shall be paid after getting resistance value satisfactorily (below 2.00 Ohm) and record will be submitted by the contractor.

Material & Labour for chemical to burn out the shrub/grass/ unwanted small trees etc 100% in outfit area of near building earthing pit in AOR spread by using spray gun equally in a given time interval as directed. Note: Chemical sample shall be supplied in sealed container 2 to 5 Ltrs each after approved by Deptt.

S&F for 50 mm bore GI pipe medium grade ISI marked as per IS:1239 with all GI fittings, laid in trenches/wall including taking down old unsv GI pipe complete all as specified and as directed.

S&F for 20 mm bore GI pipe medium grade ISI marked as per IS:1239 with all new GI fittings, laid in trenches/wall including taking down old unsv GI pipe complete all as specified and as directed.

S&F for 15 mm bore GI pipe medium grade ISI marked as per IS:1239 with all new GI fittings, laid in trenches/wall including taking down old unsv GI pipecomplete all as specified and as directed.

M & L providing PCC 1:4:8 type D-2 (Using 40 mm graded stone aggregate) as in foundation of size 150 mm x 150 mm cross section, planting depth 0.30 Mtr for concrete encasing the pole upto GL and including form work finished even and fair complete all as specified and directed.

M & L providing PCC 1:2:4 type B-1 (using 20 mm graded stone aggregate) for plinth block/Coller above GL 150 mm high of size 150 mm x 150 mm and including form work finished even and smooth with using extra cement complete all as specified and directed.

Labour only for cutting /boring to plinth protection /hard standing/road etc in suitable depth and for laying /crossing to GI strip size 32x6 MM in 45 CM depth minium complete all as directed. Note:- Quoted rate shall be included the cost of required material for repair to disturbed surface in existing.

Taking down aluminium/ galvanised / copper strip in any size and re-fixing of same strip fixed on saddle type insulators using bronze nut bolts and washer etc / riveting by aluminium rivets for jointing to strip/ laid in trench/ fix on surface of wall/ beam etc as required at site, making circuit continuty with making its straight complete all as specified and as directed. Note : Quoted rate shall be including cost of insulator (ii) Porcelain type insulator and fixing screws shall be provided @ 3 Nos per RM for fixing of strip.

S&F for copper strip 32x6 mm including porcelain type insulator fixed on 1 Mtrs apart interval with screws / reveting/ nut bolt washer etc for mounting to strip as roof conductors and down conductors upto 1.2 Mtrs above the normal ground including taking down old copper strip 32x6mm thick complete all as specified and directed. Note: Porcelain type insulator and fixing screws shall be provided @ 2 Nos per RM for fixing of strip and cost of its insulator and screws shall deemed to be included in this item.

S&F for heavy duty saddle type porcelain type insulator for holding to GI / copper strip with bronze nuts bolts and washers etc including taking down old saddle type insulator complete all as specified and directed.

M&L for advance maintenance free chemical earthing environment friendly earthing system consisting each set of 03 (Three) Nos of 10 (ten) feet length 40 mm dia earth eletrode made out by copper, maintenance free electrolytic grade copper earthing system based on flat in pipe technology of 3 Mtrs length , 40 mm dia with crystalite conductive mixture compound filled withthe permanent sealings at the top & bottom with the lead terminal / strip in 25x4 mm size copper with 2 holes of 10 mm dia at the top , to be lowered in 150 mm dia bore including filling of back fill ecofriendly earth enhancing compound tested by ROHS comply to IEC 62651-7 which should have passed leaching ,corrosion, sulphur & resistivity test as per IEC 62651-7 by NABL accredit LAB/JAM plus compound in 150 mm bore in immediate contract around the earth electrode and top of the bore shall be finished with 40 mm thick PCC in 1:2:4 type B 1 over 75 mm thick PCC in 1:4:8 type D-2 and backfilly/ JAM compound shall be covererd with heavy duty earth chamber of 5000 Kg load bearing, FRP pit cover of suitable size for each earth electrode , joint to be made by JAM weld exothermically welded technology including copper strip size 32 x 6 mm for earthing system and copper strip 32x6 mm size for earthing electrode to test point with saddles & porcelain insulators suitable size on wall ,earth strip protected by light grade GI pipe 40 mm dia in case of plinth protection / floor/ hard standing crossing incl taking down old earthing complete all as specified and directed. Note :- Earth work , PCC work, PCC cutting work by cutter, earth chamber in suitable size with testing on suitable value etc rate shall deemed to be included in quoted rate

M&L for recharging to existing earthing at Technical area in any type upto strandard value using required chemical such as NaCl/ MgSo4 / other approved chemical incl riveting / welding/ bolting to earth lead incl testing etc by Tech rep with riveting bolting replacing to nut bolt and washer etc to GI earting strip for making earth continuty from transformer / panels to earting pit complete all as site required and directed. Note : Quoted rate shall be paid after getting resistance value satisfactorly and record shall be submitted in AGE (E/M) office.

Material and labour for repair of existing earthing concrete pit shall be PCC 1:3:6 type C-1 using 20mm graded stone aggregate, 40 mm thick pre cast cover slab of RCC (1:2:4) type B-1 using 20mm graded stone aggregate reinforced with 8mm TMT bars @ 10 cm C/C on both sides with suitable cast iron handle shall be provided in lieu of cast iron cover shown in electrical plate No 3 of MES SSR Part-I complete all as specified and directed by Engr-in-Charge.

M/S R S Traders (BID ID -3160403)

Bharat Trading Company (BID ID -3161274)

M/S vibhuti enterprises (BID ID -3155678)

HIMANSHU TRADERS (BID ID -3160439)