Bharat Sanchar Nigam Limited-BSNL has published Dsitc Alps For Nfs Assam 8 Sites Designing And Providing Chemical Earthing, Lightning Protection System And Surge Suppressor System For Various Nfs Sites Under Assam And Ne Circle.8 Sites.. Submission Date for this Tender is 16-08-2021. Electrification Work Tenders in Assam and NE Zones Assam. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Providing Chemical Earthing by using Copper bonded 17 mm dia & 3 mtr long Rod, Earth Enhancing compound 50 kg, earth pit cover,i/c excavation and refilling the pit etc asreqd. |
| 2 | Providing and fixing 25 mm X 5 mm copper strip in 40 mm dia G.I. pipe from earth electrode including connections with brass nut, bolt, spring washer, excavation and re-filling etc. as reqd. |
| 3 | Providing and fixing 25 mm X 5 mm copper strip on surface or in ecess for connections etc. as reqd. |
| 4 | Providing and fixing Franklin rod type air terminal made of solid round copper of not less than 300 mm mm long and diameter not less than 16mm with multi prong withsuitable mounting platei/c jointing by riveting /nut bolting/sweating and soldering etc as reqd. Note- Suitable mounting for air terminal to be provided to ensure there is no direct contact of the terminal with structure. |
| 5 | Jointing copper tape (with another copper tape, base ofthefinialor any other metallic object) by riveting/nut bolting/sweating and solderingetc complete as reqd. |
| 6 | Providing and fixing Copper tape 25 mm X 3 mm thick on parapet or surface of wall for lightning conductor complete as reqd.(For horizontal run) |
| 7 | Providing and fixing Copper tape 25 mm X 3 mm thick on parapet or surface of wall for lightning conductor complete as reqd.(For vertical run). Note- Seperation between down conducture and mounting wall will be greater than 0.1 mtr. |
| 8 | Providing and fixing testing joint made of 25 mm X 3 mm thick Copperstrip of 125 mm long on epoxy insulator of height not less than 100 mm, with 4 nos. of Copper bolts, nuts, chuck nuts and spring washers etc. complete as reqd. |
| 9 | Providing and laying Copper tape 25 mm X 5 mm from earth electrode directly in ground as reqd. ( For Ring Earth) |
| 10 | Suppling and installation & testing of Early Streamer (ESE) Type of Lighting Arrestor of minimum covering a radius of 30 Mtr Protections in level 1. When mounted at a height of 5 Metercomplete with fasteners, rope wire and accessories. It is to be designed as per NFC 17-102. The ESE terminal should capacity Against Wind Speed =15 M/S, operating temprature range -200C to 600C and IP-67 protection. Make- Tercel/BAKIRAL/AXIS/ABB/ simillar superior make. Note- Copy of lab certificate report to be enclosed. |
| 11 | Supply and fixing of advanced lightning flash counter 2 Digit, 0 to 99 counts complete as reqd. Make- Tercel / Bakiral/ Axis/ABB/ simillar superior make . |
| 12 | Supply and fixing ofGI Mast , 50 mm dia 5mtr With suitable size GIBase Plate,rope wire , fasteners, nut, bolts, and other required accessoriesincluding minor civil work such as RCC foundation block etc. complete as reqd. |
| 13 | SITC of KEMA/VDE certified encapsulated(protected against ionized plasma blow outs) Spark gap type coordinated lightening and Surge protection for Stage-I protection designed for TT configuration against LEMP and high surges i/c interconnction earthing etcin suitable enclosure, suitable for 3 phase 4 wire system asper sepcification completeas reqd. |
| 14 | SITC of KEMA/VDE certified encapsulated(protected against ionized plasma blow outs) Spark gap type coordinated lightening and Surge protection for Stage-II protection designed for TT configuration against low voltage surges with thermal disconnection and potential free contact for arrestor connected between live and neutral and earth i/c interconnction earthing etcin suitable enclosure, suitable for 3 phase 4 wire system asper sepcification complete as reqd. |
| 15 | Providing and laying 40 mm dia GI pipe, B class direct in ground / fixing on wall complete as reqd. |
| 16 | Supplying & laying of 4 X 10 Sq mm PVC insulated and PVC sheathed/XLPE insulated Copper conductor armoured cable of 1.1 KV grade including transportation, loading, unloading upto site complete as reqd. |
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