Bharat Sanchar Nigam Limited-BSNL has published Tender For Providing Of Equipment Earthing, Repairing Or Replacement Of Aviation Light And Lightning Arrestors In Bsnl Arunachal Pradesh Ba In Zone 3. Submission Date for this Tender is 09-12-2023. Electrification Work Tenders in Papum Pare Arunachal Pradesh. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | SH-I : EQUIPMENT EARTHING - |
| 2 | Providing DC equipment earth with 4Nos GI plates by observing the following procedure. a) Digging of earth pit of size 6" x 6" x 10" deep and refilling the same after installing the earth plate system. b) Supplying and installing 4 Nos GI earth plates of size 600mm x 600mm x 6mm thick. c) Drilling holes to the plates, making connections to all the four plates for extending earth using GI bolts and nuts, washers, spring washers, strip etc. d) Supplying and fixing of 50mm x 3mm thick GI strip for interconnecting all the four strips horizontally and diagonally to the plates including drilling holes etc. e) Supplying and filling the following artificial soil treatment materials in the earth pit. Charcoal - 500kgs, saw dust - 50kgs, salt - 20kgs, supplying and filling the balance pit with black cotton soil etc.,as required. f) Providing 1/2" dia Gl water pipe (B-class) of approximately length 10" with suitable GI sheet funnel and mesh with necessary threading etc.g) Providing necessary enclosure for earth pit with cast Iron cover plate having locking arrangement and white washing of the masonry enclosure (Approx. size of masonry enclosure is 30"x30")h) Initial watering of the earth pit, arranging manpower for testing the earth resistance of the earth and furnishing the test results, sign writing and clearing the debries from site, making good etc., as required. |
| 3 | Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required. |
| 4 | Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required. |
| 5 | Supplying and laying of 25 mm X 5 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm) |
| 6 | Supplying and laying of 35 sqmm multistrand sngle core PVC insulated copper cable from Main earth electrode to DC earth busbar i/c terminations with cu lugs etc.,as required |
| 7 | Measurement of earth resistance of existingearth pits at site in the presence of site incharge and submitting report etc.,as required. |
| 8 | SH-II : LIGHTNING ARRESTOR - |
| 9 | Providing Earthing with G.I. earth plate of 600 mm X 600 mm X 6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required. |
| 10 | Providing and fixing 25 mm X 3 mm G.I. strip along the tower/Wall with suitable insulators /clamps fixed at suitable interval etc.,as required.(For Vertical Run) |
| 11 | Providing and fixing oflightning conductor finial made of 25mm dia 900 mm long GI pipe ( B-class) having single prong at top of the tower with suitable size GI base plate including holes etc.complete as required. |
| 12 | SH-III : AVIATION LIGHT - |
| 13 | Supplying and fixing of low intensity high power LED type RED colour Aviation Obstruction Light(AOL) with cast Alluminium housing suitable for operation on 230 V AC supply on existing GBT of 60/40mtrs/30mtrs mtrs height as per site conditions.The fitting shall have day light sensor and provision for cable entry and termination etc.,as required.The agency shall replace the existing faulty AOL and fix the new one including all minor modifications if any required.(Degree of protection IP:65) |
| 14 | Supplying and laying 2 core 1.5 sqmm XLPE insulated Armoured copper conductor cable of 1.1 KV Grade on the existing cable tray/on surface of wall with locking tags/clamps etc.,as required. |
| 15 | Supply and making end termination with brass compression gland andlugs for following size of XLPE insulated cable of 1.1 KV grade etc.,as required. A) 2x1.5 Sqmm copper armoured cable |
| 16 | Supplying and fixing 6 amps to 32 amps rating, 240/415 volts, "C" curve, miniature circuit breaker suitable for inductive load of following poles in the existing MCB DB complete with connections, testing and commissioning etc. as required. a) 6A to 32 A Single pole . |
| 17 | Supplying and fixing of 10 Amps 2 way bakelite connector in the sutiable size MS box i/c interconnections of existing cables as per site requirement etc.,complete as required. |
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