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| 1 | Material and labour for earth pit indicator board made out of 300 x 300 x 3 mm MS sheet fixed on and including25 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 height using 20mm graded stone aggregate and painting exposted surface of steel with two coats of syenthetic 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 testingNote :- (i) Cost of excavation of earth in any type of strata for erection of earth pit indicator board removal of surplus soil/rock upto 50 metre from starting point, and returning filling in of soil is deemed to be included in the quoted rates. |
| 2 | Material and labour for earth testing, identifying the earthings in building / LT Panel and recording the results on indicator board and producing three copies of test sheet duly signed by Contractor/ JE/ AGE E/M all as directed by Eng-in-charge.Note :- (i) Cost of labour and tools required for testing is deemed to be included in quoted rates. |
| 3 | 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 using 40mm graded stone aggregate chamber including necessary formwork / mould for fair and even surfaces, precast RCC 1:2:4 type B0 using 12.5mm graded stone aggregate chamber cover slab, GI funnel, with GI watering pipe 20 mm dia medium grade, wire mesh, protection pipe 40 mm dia GI pipe light grade for earth lead upto 7.50 metre long including testing salt, charcoal complete all as specified and directed by Engineer-in-Charge.Note : 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. |
| 4 | Material and labour for Testing of conventional type lightning protection system as specified here under in Techanical Area/ Lab / Magzine bldgs inside HEMRL 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) All above testing are to be done in accordance with STEC Pamphlate No. 7 and IS 2309, 1999 (2nd revision) and IS 3043, 1987.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 5 (b) to (e) will be conducted only after rectifying the defects observed during visual check. (ii) Material and labour 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. 1-ER 10 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 (certificatesto 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.Note : LP system for complete bldg/magzine/shed/lab will be mesured as one unit. |
| 5 | Taking down / dismantling existing perished copper strip 25x5 mm / 20 x 3.15 mm from any height of roof top / on walls / buried in to ground of conventional type lightening protection network system complete all as specified and as directed. |
| 6 | Fixing only serviceable copper strip of size 25x5 mm / 20 x 3.15 mm as obtained from sl item No 05 above, at any type of building / magazine / lab at any type on existing walls / buried under ground, including jointing the system of conventional type lightening protection network and making good the disturbed surface of walls complete all as specified and as directed. |
| 7 | Material and labour for new copper strip 20 x 3.15 mm as earth countinuity conductor fixed with saddels and fixing screws etc as on wall complete all as specified and directed. |
| 8 | Supply and fix copper plate 150x150x3mm thick with 1 No. round soild copper bar 20 mm dia & 150 mm long brazed or threaded & fixed in the centre of the plate for manual electrostatic discharge & fixed on existing wall at height of 1.5 metre complete all as specified and directed. |
| 9 | Supply and fix copper plate 600x600x3 mm thick fixed to floor by means of brass nuts/bolts and duly connected to ESDS system complete all as specified and directed. |
| 10 | Taking down / dismantling existing perished aluminium strip of size 25 x 3 mm from any height of roof top / on walls of conventional type lightening protection network system complete all as specified and as directed. |
| 11 | Fixing only serviceable aluminium strip of size 25 x 3 mm obtained from sl item No 11 above fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/ pipe or fixed to poles or any other indicated situation for loop earthing etc or fixed on new PCC block at any height on roof top, on new 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 match with existing surface complete all as specified and as directed. |
| 12 | Material and labour for aluminium stripof size 25x3mmfixed to wall on batten or recess or chases or burried in ground or drawn in conduit/ pipe or fixed to poles or any other indicated situation for loop earthing etc. or fixed on 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 andbolt, gutties, screws etc complete all as specified and directed.Note :(i) Epoxy base insulator and PCC block only will be measured and paid separately underrelevant items (ii) Unit rate quoted is deemed to be inclusive costof one lead joint and 2 Nos GI nuts, bolts washers, screws and necessary T&P and machining work required at site. |
| 13 | Material and labour for dismantling and taking down from roof / poles air termiantion single pointed rod 12 mm dia 300 mm long and keeping in safe custody including making good the disturbed surfaces after replacement of PCC block, insulator, strip and connect to aluminium strip including 2 No drilling holes, nuts, bolts washers complete all as specified and directed by Engineer-in-Charge.Note : quoted rates includes for temperory support structure required for working and safety. |
| 14 | Supply and fix new air termination single pointed aluminium rod of 12 mm dia 300 mmlong fixed to aluminium strip 25 x 3 mm including drilling holes, nuts, bolts washers for resting/ supporting of air terminals etc., complete all as specified and directed. |
| 15 | fixing only air termination single pointed rod 12mm dia 300 mm long on roof top in existing net work system or any other new net work systemafter replacement of PCC block, insulator, strip and connect to aluminium strip including 2 No drilling holes, nuts, bolts washers complete all as specified and directed by Engineer-in-Charge.Note : Cost for temperory support structure required for working and safety deemed to be included in unit quoted rate. |
| 16 | Material and labour for dismantling of existing inspection box of any type, shape and size and supply and fixing 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 complete all as specified and directed by Engineer-in-Charge. |
| 17 | Material and labour for precast RCC 1 : 2 : 4 type B0 (using 12.5 mm graded crushed stone aggregate ) as in pit cover, and similar articlescomplete all as specified and directed.Note : Reinforcement shall be measured and paid seperately. |
| 18 | Supply only epoxy base insulator of suitable size, 35mm height fixed on PCC blocks/ wall or MS angle/ Pipe or on traverse etc. complete all as specified and directed by Engineer-in-Charge. |
| 19 | Taking down / dismantling existing perished GI strip of size 32 x 6 mm from walls / buried in to ground of conventional type lightening protection network system complete all as specified and directed. |
| 20 | Fixing only serviceable GI strip of size 32 x 6 mm as obtained from as per sl item No 20.0 above, on existing walls / buried under ground, on existing insulators any type including jointing the system of conventional type lighteningprotection network and making good the disturbed surface of walls complete all as specified and as directed. |
| 21 | Material and labour fornew 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:- Insulators will measured paid seperately. |
| 22 | Material and labour for CPRI approved special factory made earthing electrode comprising of hot dipped galvanized MS flat inserted in to GI pipe of 88mm dia (outer), 3m length filled with non magnetic anti corrosive material specially developed for ground resistance enhancement powder 2x 25 kgs around the electrode to retain moisture conforming to IS 3043 including necessary boring in ground of 15mm dia in any type of strate connecting to test point including FRP earth pit chamber.Note : The earth resistance shall be less tahn 1 ohms complete.The contractor whall improve the earthing esistance within the permissible limit without any extra cost. complete all as specified and directed.Make : U-PROTEC EARTHING PVT. LTD / JEFF Technogies / TRUE POWER |
| 23 | Material and labour for PCC block of size 150 x 150 x 150mm in PCC (1:3:6) type C-1 with 20mm stone graded aggregate including necessary form / mould for fair and even surfaces, complete all as specified and directed. |
| 24 | Material and labour for maintenance free grounding solution set earthing comprising of 17.2 mm copper bonded earthing rod, 3 metre long, copper terminal size of 100 x 50 x 6 mm with 2 nos M8 holes for termination. Electrode must be tested for a short circuit test of minimum 40 KA at CPRI/ NABL. The earthing electrode will be placed in the ground after a bore is drilled to the depth of 3.5 metre. The bore drilling will be done with the help of a pneumatic boring machine, 50 kgs BFC will be placed in the bore to cover the earthing rod from all sides. BFC will poured in slurry form in properly mixed condition. The earth pit cover 300x300x240 mm to be provided to cover the earth pit and shall be made of reinforced FRP and should be capable of carrying the weight of 5 Tonscomplete all as specified and directed. Note:-(i) Copper strip beyond 7.5 metre will be measured and paid separately. (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 result are to be written in letters of 20 mm height in white colour on black paint back ground . If the desired result not obtained after testing, the contractor should do re-earthing without any extra cost to Govt.Make : U-PROTEC EARTHING PVT. LTD / JEFF Technogies / TRUE POWER |
| 25 | Material and labour for GI funnel with wire mesh for earthing complete all as specified and directed. |
| 26 | Supply and fixin repair GItubing medium grade of 20mm dia,ISI markedfixed on wall, roof,floor completewithallaccessoriessuchasTeesunion , bend ,elbownipple reduceretc, allasrequired atsite forbranchconnection including cutting threadingfor watering to earthing complete all as specified and directed by Enginner-in-Charge. |
| 27 | Cutting the tree branches which touches the lightening protection system on roof / on traverse etc of each bldg at specified location and deposting the tree branches/leaves at 50 metre distance away from site complete all as specified and directed.Note : Any number of tree branches cut sorrounded the LPS will be mesured as one job for payment purpose. |
| 28 | Material and labour for GI tubing light grade of size 40 mm dia for connecting to air termination rod / protection to GI strip complete including Brackets for fixing complete all as specified and directed. |
| 29 | Supply and fixing unquely designed circular highbay with IP lens for better lighting distribution. Available in lumens> 120lm/W>130lm/W making it a versatile solution for various industrial application.It has 4KV inbult surge protection & ingress protection of Ip66 with additional safety chain.Make :Crompton/Havelles/Wipro/Phillips |
