Military Engineer Services-MES has published Periodical Testing , Repairs/ Maintenance Of Earthing And Earth Pits In Otm Accn At 58 Su Chimney Hills. Submission Date for this Tender is 09-11-2020. Electrification Work Tenders in AGE I AF CHIMNEY HILLS BANGALORE Karnataka. Bidders can get complete Tender details and download the document.
| Name of Work: PERIODICAL TESTING, REPAIRS/ MAINTENANCE OF EARTHING AND EARTH PITS IN OTM ACCN AT 58 SU CHIMNEY HILLS | |||||
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| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | Material and Labour for identifying earthing, disconnecting/opening of existing earth lead/conductor of GI wire/GI Strip/Copper strip etc,. from the main switch board / eqipment / test point for testing of earth value/earth resistance uisng required equipments like digital earth testing meter as per site condition and recording earth resitance value of each earth pit, with details of location and date and connecting the lead to the existing position after testing complete all as specified and as directed | 750 | EACH JOB | |
| 2 | 2 | Material and Labour for repairs to earth pit chamber by cleaning and removing all foreign materials from the pits, improving the resistance of existing earth pit by pouring salt water in earth pit to achieve desired earth resistance results, connecting the broken earth leads with strips/wires etc. complete all as specified and directed | 100 | EACH JOB | |
| 3 | 3 | Material and Labour for repairs to copper earth strips by brazing (Gas welding) at the places of nut & bolt joints complete all as specified and as directed. | 30 | EACH JOB | |
| 4 | 4 | Material and Labour for repairs to GI earth strips by brazing (Gas welding) at the places of nut & bolt joints complete all as specified and as directed. | 30 | EACH JOB | |
| 5 | 5 | Supply and fix in repairs porcelain insulator with suitable clamps and GI screws along with existing GI/Copper strips on walls by removing old damaged/unserviceable porcelian insulators, including fixing the uprooted lightening conductor (GI/Copper Strip) to existing position insulators complete all as specified and as directed. | 50 | EACH | |
| 6 | 6 | Supply and fix in repairs gun metal or bronze phosphorus earth test point terminal block of size 75 x 75 x25 mm on walls with 3 nos, 8 mm dia, 25 mm long hexagonal head screws including drilling and removing wornout/rusted sheet metal box all as specified and as directed. | 100 | EACH | |
| 7 | 7 | Supply and lay, fixing in repairs galvanised steel pipe 25mm bore dia medium grade including all fittings complete laid in trenches or in floor/fixed on wall for earth strip protection all as specified and as directed \n | 15 | RUNNING METRE | |
| 8 | 8 | Supply and lay, fixing in repairs galvanised steel pipe 40mm bore dia light grade including all fittings complete laid in trenches or in floor/fixed on wall for earth strip protection all as specified and as directed \n | 10 | RUNNING METRE | |
| 9 | 9 | Supply and fix in repairs galvanised steel strip of size 32 x 6 mm, as earth conductor or main earthing lead fixed on wall on batten or in recess/chases or buried in ground, drawn in conduit/pipe or fixed to poles or any situation for loop earthing etc., all as specified and as directed. | 15 | RUNNING METRE | |
| 10 | 10 | Supply and fix in repairs aluminium strip of size 20 x 3.15 mm, as earth conductor or main earthing lead fixed on wall on batten or in recess/chases or buried in ground, drawn in conduit/pipe or fixed to poles or any situation for loop earthing etc., all as specified and as directed. | 10 | RUNNING METRE | |
| 11 | 11 | Supply and fix in repairs copper strip of size 32 x 6 mm, as earth conductor or main earthing lead fixed on wall on batten or in recess/chases or buried in ground, drawn in conduit/pipe or fixed to poles or any situation for loop earthing etc., all as specified and as directed. | 15 | RUNNING METRE | |
| 12 | 12 | All as per item No. 12, here in before but for copper strip of size 20 x 3 mm all as specified and as directed \n | 15 | RUNNING METRE | |
| 13 | 13 | Supply and fix in repairs PVC insulated, single core multistranded copper cable, 25 sqmm drawn through including flexible PVC conduit pipe on walls complete all as specified and directed | 25 | RUNNING METRE | |
| 14 | 14 | Material and Labour for cement concrete 1:2:4, type B1, using 20 mm graded aggregate as in edges, sides, coping of earth pits and edge slightly rounded or chamfered including necessary use and waste of form work complete all as specified and as directed. | 1 | CUBIC METRE | |
| 15 | 15 | Supply and fix mild steel framed work such as in earth pit cover fabricated with 5 mm thick mild steel sheet welded to iron angle frame including hold fasts and lifting arrangements embedded to earth pits with cement concrete complete all as specified and directed. | 45 | KILOGRAM | |
| 16 | 16 | Material and Labour for replacement of earthing complete with galvanised iron earth plate electrode of size 600mm x600mm, 6mm thick, buried directly in ground vertically at a depth not less than 2.25 metres deep below normal ground level with top edge of the earth plate not less than 1.5 metres below normal ground level and filling with mixture of common salt and charcoal surrounded all sides 15cm thick (minimum) and connecting electrode to galvanized iron strip 32x6mm as earthing lead by means of bolts, nuts, checks nuts, washers made of galvanized iron or steel and protected by 40mm dia galvanised light grade iron pipe connected from plate to main switch board, Panel Board, test point terminal or main control board and watering arrangement with 20 mm bore GI light grade pipe, GI funnel with wire mesh, including PCC 1:3:6 type C1 pit with cover of RCC 1:2:4 type B1, reinforced with welded steel wire fabric not less than 4 kg per sqm with handle and angle iron frame, watering arrangement with 20 mm bore GI medium grade pipe, GI funnel with wiremesh, filling with mixture of common salt and charcoal, necessary excavation in earth work in any type of soil, refilling, removing soil and including test point, commissioning testing new earthing on completion all as directed.\n\n | 5 | EACH SET | |
| 17 | 17 | Material and Labour for replacement of replacement in earthing with copper plate electrode of size 600mmx600mm, 3.00mm thick burried directly in ground (Earth pit not less than 2.25 mtr deep below normal ground level ) with top edge of earth plate not less than 1.5 metres below normal ground level, connected to copper strip 20x3 mm dia connected to earth plate electrode by means of copper bolt, check nut and washers, earth wire protected with 40 mm bore light grade GI pipe all as shown in electrical plate No 3 of MES Schedule Part-I (2009), with and including PCC 1:3:6 type C1 pit with cover of RCC 1:2:4 type B1, reinforced with welded steel wire fabric not less than 4 kg per sqm with handle and angle iron frame, watering arrangement with 20 mm bore GI medium grade pipe, GI funnel with wiremesh, filling with mixture of common salt and charcoal, necessary excavation, refilling, removing away soil and earth work in any type of soil, including test point, testing and commissioning complete including painting and writing the earth value on the MS sheet cover all as directed.\n\n | 6 | EACH SET | |
| 18 | 18 | Material and Labour for providing Chemical earthing complete with copper earth plate electrode 900 mm x 600 mm x 5 mm thick buried directly in ground (Earth pit not less than 3.50 m deep below ground level) with top edge of the plate not less than 2.60 mtr below normal ground level connected to and including copper strip lead 32 mm x 6 mm size by means means of bolts, nuts, check nuts and washers of tinned copper/brass in addition to brazing of all joints including excavation and earth work, GI pipe light grade 40 mm bore for protection to earth lead including charcoal dust - 200 Kg, common salt - 200 Kg and Magnesium Sulphate - 150 Kg , PCC 1:2:4 type B1 using 20 mm graded stone aggregate in chamber and mild steel angle Iron frame 40 mm x 40 mm x 3 mm and 40 mm thick RCC 1:2:4 type B1 using 20 mm graded stone aggregate as in cover slab reinforced with 8 mm dia TMT bar both ways at 100 mm C/C, PGI funnel and wire mesh 25 mm bore GI pipe light grade for watering including necessary earth work and testing complete. \nNOTE: \n(i) Earth plate shall be laid in vertical plane such a way that short side remains vertical. \n(ii) Earth plate shall have minimum cover of 300 mm thick of charcoal / salt on all sides including top and bottom. \n(iii) Charcoal and salt shall be laid in alternate layer of 150 mm each with total eight layers (each 4 layer of charcoal and salt). \n(iv) the earth test point of Gun metal / phosphorus bronze shall be located all as specified and directed.\n(v) After completion of the work while testing earth resistance, if the desired results not acheived, the contractor shall redo the complete earthing at his own cost. No extra claim whatsoever is admissable in this regard | 1 | EACH SET |
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