| 1 | Supply of copper earthing cable for LA 1 | Supply of length, 1 Core X 70 sq mm flexible copper earthing cable. Material- FR-LSH PVC with copper lugs and outdoor insulation tape (Self Fusing/Self vulcanizing silicon rubber). | 50 | mtrs | CNSSTOREAGM | 60 |
| 2 | Brazing of earthing contacts | Brazing of earthing contacts of LA 1 | 5 | points | CNSSTOREAGM | 60 |
| 3 | Replacement of earthing cable for LA 1 | Replacing the old LA cable with the new supplied Cable, with required Copper LUGS, Brazing at both the ends and insulation tape, With the use of Crane of Appropriate height. | 1 | job | CNSSTOREAGM | 60 |
| 4 | Repair of earthing pits associated with LA 1 | Re-Digging the earth pits ( 02 Nos) up to the approx. depth of 3 Meters and filling of charcoal, salt and earth enhancing compound and backfilling the soil so that the earth resistance of less then 1 ohm be achieved. | 2 | job | CNSSTOREAGM | 60 |
| 5 | | Supply of Charcoal to Repair of earthing pits (02 nos) associated with LA 1 | 200 | KG | CNSSTOREAGM | 60 |
| 6 | | Supply of Salt Granules to Repair of earthing pits (02 nos) associated with LA 1 | 50 | KG | CNSSTOREAGM | 60 |
| 7 | Supply of earth enhancing compound | Supply of earth enhancing compound to Repair of earthing pits (02 nos) associated with LA 1 | 100 | KG | CNSSTOREAGM | 60 |
| 8 | Maintenance work of LA 2 mast and Checking and repair of the Earth cable connection above mast | Inspect the earth connection at the top of the mast to ensure proper grounding and conductivity.
Check for any signs of corrosion, damage, or deterioration in the earth connection and insulation materials.
Repair or replace any damaged or deteriorated components as necessary to maintain the effectiveness of the lightning protection system.
Conduct a thorough inspection of the lightning arrestor mast structure, including all components such as masts, brackets, and support structures.
Check the tightness of nuts and bolts securing the mast structure to ensure structural integrity and stability.
Grease moving parts and hinges to facilitate smooth operation and prevent corrosion.
Verify the alignment of the mast structure to ensure it is upright and stable. | 1 | Job | CNSSTOREAGM | 60 |
| 9 | Reconstruction of earth pits inspection Chamber associated with Radar equipment, UPS, Antenna and LA-1 | Concrete earth pits inspection chambers (08 nos) need to be reconstructed. The dimensions of the chamber are 1.75 x 1.75 x 1.75 feet (L x W x H) in dimensions.
Supply all necessary materials for the construction of the earthing pit, including sand, bricks, cement, concrete, and a pit cover 18 inch X18 inch (Cast Iron).
The earth pit chambers need to be painted and marked as per the industry standards. (Yellow/Black). | 8 | Work | CNSSTOREAGM | 60 |
