Bharat Sanchar Nigam Limited-BSNL has published Tender For Provision Of Lightning Arrestor Earthing And Aviation Lamp For 726 Ran Sites Against Ix.2 Project Under Assam Circle Phase1 Sites Under Ba Tezpur Through Cpp. Submission Date for this Tender is 12-02-2024. Electrification Work Tenders in tezpur Assam. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Providing Chemical Earthing by using 250 microns copper bonded steel solid rod 3 meter long 17 mm dia Earth Electrode unit consisting of copper terminal of size 25 mm x 6 mm (thick) x 200 mm length with 4 nos holes, 4 sets of chrome plated GI nut bolts, plain washer, spring washer including filling with hygroscopic conductive compound of low resistivity earth enhancement powder (environmental friendly, mineral compounds, semi soluble, non-corrosive,conductivity improving material of approved brand) with backfill soil including making borewell of size 100 mm dia, 3.0 meter deep in ground (soft / hard rock) for chemical earthing including arranging required tools & plants and manpower etc. completewith FRP enclosure with cover plate having nominal size top dia 254 mm, bottom dia 330 mm and height 260 mm etc complete as reqd. (Note- AT of Earth value of each earth pit will be done in front of the BSNL authorised person without extra cost) |
| 2 | Providing Chemical Earthing by using 250 microns copper bonded steel solid rod 3 meter long 17 mm dia Earth Electrode unit consisting of copper terminal of size 25 mm x 6 mm (thick) x 200 mm length with 4 nos holes, 4 sets of chrome plated GI nut bolts, plain washer, spring washer including filling with hygroscopic conductive compound of low resistivity earth enhancement powder (environmental friendly, mineral compounds, semi soluble, non-corrosive,conductivity improving material of approved brand) with backfill soil including making borewell of size 100 mm dia, 3.0 meter deep in ground (soft / hard rock) for chemical earthing including arranging required tools & plants and manpower etc. completewith FRP enclosure with cover plate having nominal size top dia 254 mm, bottom dia 330 mm and height 260 mm etc complete as reqd. (Note- AT of Earth value of each earth pit will be done in front of the BSNL authorised person without extra cost) |
| 3 | Supplying & Laying 25 mm x 5 mm G I strip at 0.5 meter below ground as strip earth electrode i/c connection termination with nut bolts spring washers etc as required. |
| 4 | Supply Installation Testing & Commissioning of Lightning Protection System (LPS) using air termination system fabricated from solid type Hot deep galvanozedrodof minimum 16 mm dia & 200 sq mm cross section area with minimum2mtr length & minimum contineous coating of 1micro meter , (cross-sectional area = or < than 200 sq.mm., diameter > or = 16 sq.mm.,)along with required size & type air terminal holding clamp, alongwith arrangement for clamping / screwing & fixing G Irod on existing tower topsuitable mounting arrangement, complying to IEC-62305 standards, etc. complete as required. |
| 5 | SITC of solar powered Aviation Obstruction Light (AOL) comprising of solar panel of 12 V DC & 10Wp ratings , lion battery of 12 V / 24V / 36 V /48 V&minimum 4.5 AH capacity all these internally fittedstainless steel / pvccasing sealed water proof IP-55 protection , duly paintedfinished in low / medium intensity suitable size low power consuming LED"stype RED colour of 32 cd / sq mtr suitable for dual supply autooperation on 220 V AC / 12 V DCsupply with LDR/APD/Photo sensor for auto on-off withminimum power consumption. The aviation lamp should be fitted at the specific point & height according to civil aviation regulations & as per directions of engineer in charge. minimum warrantee period of 2 years. ( Make : M/s Geltronics/ Bajaj/Instapower /Envy/Specification compliant ) |
| 6 | Suppling & laying 2 x 1.5 sq mm pvc insulated pvc sheated copper conductor armoured cable for aviation lamp supply from existing mcb db to aviation box i/c connections & laying the cable alongwith tower feeder & claming the same with necessary clamps etc. as required. (Make-ISI Marked) |
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