Military Engineer Services-MES has published Repair / Replacement And Maintenance Of Earthing System And Misc Works In Technical Area And Domestic Area At Airforce Station Thanjavur. Submission Date for this Tender is 23-01-2021. Bolts Tenders in THANJAVUR Tamil Nadu. Bidders can get complete Tender details and download the document.
Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
1 | 16-Jan-2021 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 23-01-2021 |
Name of Work: REPAIR/ REPLACEMENT AND MAINTENANCE OF EARTHING SYSTEM AND MISC WORKS IN TECHNICAL AREA AND DOMESTIC AREA AT AIRFORCE STATION THANJAVUR. | |||||
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Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
1 | 1 | Material and labour for Tripod (Delta) type maintenance free chemical earthing (comprising of three Nos chemical earthing) as per drawing attached (Sketch No - 01) the chemical earthing including taking down will have specification as follows:-\n(a) Copper electrode of wall thickness minimum 2mm not less than 3 mtr length with not less than 76mm outer dia total 03 Nos including copper strip of size 50 x 6mm minimum 2 mtr long connected /brazing with 75mm dia copper electrode and 25 x 3mm copper strip not less than 3 mtr long for inter connecting three 75mm copper earth electrode complete as per drawing.\n(b) Fixing of copper earth electrode by drilling/ boring 175mm dia hole 5.00 mtr deep in any type of strata, placing electrode along with extention earth strip 50 x 6mm 2 mts long and mixing earthing soil resitivity improvement compound Gel min 10 KG per bore total 30 KG for 3 bores and 75 KG per bore total 225 KG for 3 bores soil resistivity improvement compound homogeneously as per manufacturer instruction.\n(c) FRP earthing display board 254mm x 380mm made out of plastic material showing information related to type of earthing, earthing result, due date of testing along with fixing size 610mm height made of plastic hollow pipe of 20mm dia.\n(d) PCC earthing pit in PCC 1:2:4 type B-1 of internal size 300mm x 300mm x 300mm with 120mm thick wall and 700mm x 70mm x 150mm thick bed concrete and 50mm thick precast chamber cover of RCC 1:2:4 type B1 for reinforced with welded steel wire fabric or XPM Jali (weight not less than 4.00 kg/Sqm), complete all as shown in electrical plate No -3 of SSR part - I complete.\n | 8 | Each Job | |
2 | 2 | Material and labour for maintenance free chemical earthing comprising of one No chemical earthing including taking down the chemical earthing will have specification as follows:-\n(a) Copper electrode of wall thickness minimum 2mm not less than 3 mtr length with not less than 76mm outer dia including copper strip of size 50 x 6mm minimum 2 mtr long connected /brazing with 76mm dia copper electrode.\n(b) Fixing of copper earth electrode by drilling/ boring 175mm dia hole 5.00 mtr deep in any type of strata, placing electrode along with extention earth strip 50 x 6mm 2 mts long and mixing earthing soil resistivity improvement compound Gel min 10 KG per bore and 75 KG soil resistivity improvement compound mixing homogeneously as per manufacturer instruction.\n(c) FRP earthing display board 254 x 380mm made out of plastic material showing information related to type of earthing, earthing result, due date of testing along with fixing size 610mm height made of plastic hollow pipe of 20mm dia.\n(d) PCC earthing pit in PCC 1:2:4 type B-1 of internal size 300mm x 300mm x 300mm with 120mm thick wall and 700mm x 70mm x 150mm thick bed concrete and 50mm thick precast chamber cover of RCC 1:2:4 type B1 for reinforced with welded steel wire fabric or XPM Jali (weight not less than 4.00 kg/Sqm), complete all as shown in electrical plate No -3 of SSR part - I complete.\n(e) Contractor must visit the site before quoting the tender to understand the difficulty and cost for carrying out the job in the station. It is important that contractor ascertain the quantum of work.\n | 20 | Each Job | |
3 | 3 | Material and labour for maintenance free chemical earthing comprising of one No chemical earthing including taking down the chemical earthing will have specification as follows:-\n(a) GI electrode duel Technology filled with HCC compound not less than 3 mtr length with not less than 88mm outer dia including GI strip of size 50 x 6mm minimum 2 mtr long connected / welding with 88mm dia GI electrode.\n(b) Fixing of GI earth electrode by drilling/ boring 175mm dia hole 5.00 mtr deep in any type of strata, placing electrode along with extention earth strip 50 x 6mm 2 mts long and mixing earthing soil resistivity improvement compound Gel min 10 KG per bore and 75 KG soil resistivity improvement compound mixing homogeneously as per manufacturer instruction.\n(c) FRP earthing display board 254 x 380mm made out of plastic material showing information related to type of earthing, earthing result, due date of testing along with fixing size 610mm height made of plastic hollow pipe of 20mm dia.\n(d) PCC earthing pit in PCC 1:2:4 type B-1 of internal size 300mm x 300mm x 300mm with 120mm thick wall and 700mm x 70mm x 150mm thick bed concrete and 50mm thick precast chamber cover of RCC 1:2:4 type B1 for reinfoced with welded steel wire fabric or XPM Jali (weight not less than 4.00 kg/Sqm), complete all as shown in electrical plate No -3 of SSR part - I complete.\n(e) Contractor must visit the site before quoting the tender to understand the difficulty and cost for carrying out the job in the station. It is important that contractor ascertain the quontum of work.\n | 20 | Each Job | |
4 | 4 | Supply and pouring Earthing soil resistivity improvement compound Gel (Power plus Gel) Enhancement compound transparent liquid Gel in 5 kg packing all as specified and directed by Engr In Charge. Make:- Powertrac / JJ Engineering / SM Infotech. | 50 | Each | |
5 | 5 | M & L for providing earthing in repairs with GI earth plate electrode 600mm X 600mm X 6mm buried directly in ground (earth pit not less than 2.25M deep below ground level ) with top edge of the earth plate not less than 1.5M below ground level connected to GI strip 25 x 4mm thick for earthing lead fixed by means of nuts,bolt,washers etc connected to earth test point complete all as specified in electrical plate NO 3 of SSR1996 part 1 ,including earthing soil resitivity improvement compound Gel min 10 KG per earth pit and soil resistivity improvement compound 150 KG per earth pit and necessary excavation and earth work in any strata of soil,GI water pipe with 20mm dia funnel &wire mesh PCC pit with CI cover and frame etc all as specified and directed by Engineer-in-charge. Note:- All the joints shall be made with welding to get proper conductivity. | 20 | Each | |
6 | 6 | M&L for earth continuity conductor in repairs or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required 25 x 4mm GI strip including fixing arrengment like epoxy insulators on wall/pole etc. Note:- All the joints shall be made with welding to get proper conductivity. | 160 | Running Metre | |
7 | 7 | M & L for providing earthing in repairs with GI earth plate electrode 600 X 600 X 6mm buried directly in ground (earth pit not less than 2.25M deep below ground level ) with top edge of the earth plate not less than 1.5M below ground level connected to GI wire 4mm thick for earthing lead fixed by means of nuts,bolt,washers etc connected to earth test point complete all as specified in electrical plate NO 3 of SSR-2012 part 1 ,including earthing soil resitivity improvement compound Gel min 10 KG per earth pit and soil resistivity improvement compound 150 KG per earth pit and necessary excavation and earth work in any strata of soil,GI water pipe with 20mm dia.funnel &wire mesh PCC pit with CI cover and frame etc all as specified and directed by Engineer-in-charge. Note:- All the joints shall be made with welding to get proper conductivity. | 4 | Each | |
8 | 8 | M&L for earth continuity conductor in repairs or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required 4mm GI wire including fixing arrengment like epoxy insulatos on wall/pole etc.. | 40 | Running Metre | |
9 | 9 | M & L for providing earthing in repairs with copper earth plate electrode 600 X 600 X 6mm buried directly in ground (earth pit not less than 2.25M deep below ground level ) with top edge of the earth plate not less than 1.5M below ground level connected to copper strip 25 x 3mm thick for earthing lead fixed by means of nuts,bolt,washers etc.of copper / brass connected to earth test point complete all as specified in electrical plate NO 3 of SSR1996 part 1 ,including earthing soil resistivity improvement compound Gel min 10 KG per earth pit and soil resistivity improvement compound 150 KG per earth pit and necessary excavation and earth work in any strata of soil,GI water pipe with 20mm dia.funnel &wire mesh PCC pit with CI cover and frame etc all as specified and directed by Engineer-in-charge. Note:- All the joints shall be made with brazing to get proper conductivity. | 120 | Each | |
10 | 10 | M&L earth continuity conductor in repairs or main earthing lead fixed to wall on battern or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required 25 x 3mm copper strip including fixing arrengment like epoxy insulators on wall/pole etc.. Note:- All the joints shall be made with brazing to get proper conductivity. | 800 | Running Metre | |
11 | 11 | Supply and pouring common salt commercial best quality complete all as specified and directed by Engr In Charge. | 5 | Qtl | |
12 | 12 | Supply and pouring charcoal dust/breeze best quality complete all as specified and directed by Engr In Charge. | 5 | Qtl | |
13 | 13 | Excavation in trenches in soft/loose soil not exc. 1.5 metre wide and not exc. 1.5 metre in depth and getting out for taking up / laying under ground electric cable or for pole etc complete all as specified and as directed.\nNote :- Mechanical excavation is not allowed in this Stn only manual excavation allowed. | 60 | Cum | |
14 | 14 | Returning, filling in, including spreading levelling watering and well ramming in layers not exceeding 25 cms in depth in soft/loose soils complete all as specified and as directed. | 54 | Cum | |
15 | 15 | Removing surplus soils to a distance not exceeding 50 mtr and depositing where directed at a level not exc. 1.5 mtr above the starting point all complete as specified and as directed. | 6 | Cum | |
16 | 16 | Demolition of old unserviceable earth pit chamber and providing PCC earthing pit in PCC 1:2:4 type B-1 of internal size 300mm x 300mm x 300mm with 120mm thick wall and 700mm x 70mm x 150mm thick bed concrete and 50mm thick precast chamber cover of RCC 1:2:4 type B1 for reinfoced with welded steel wire fabric or XPM Jali (weight not less than 4.00 kg/Sqm), complete all as shown in electrical plate No -3 of SSR part - I complete. | 10 | Each Job | |
17 | 17 | Supply and fix in repairs,steel tube medium grade, galvanised with all fittings and fixed complete to wall and ceiling or laid in floors of size 40mm dia laid in trenches. | 36 | Running Metre | |
18 | 18 | Supply and fix in repair, steel tube medium grade, galvanised with all fittings and fixed complete to wall and ceiling or laid in floors of size 25mm dia laid in trenches. | 200 | Running Metre | |
19 | 19 | M&L cutting of existing GI tube 40mm bore for making new connection inserting unequal Tee 40x40x25mm bore complete all as specified. | 6 | Each | |
20 | 20 | Supply and fix in repair gun metal globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed of size 25mm dia. | 8 | Each | |
21 | 21 | Supply and fix in repair bib taps cast copper alloy with crutch or butterfly handel screwed down screwed for iron pipe or for brass ferrule and fixed of size 15mm bore. | 40 | Each |
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