| Sr No | CorrigendumDate | Description | Submission Date |
| 1 | 06-02-2020 | 1st corrigendum | 22-02-2020 |
| Name of Work: Supply, installation of Lightning protection system of the proposed G+4 storied Administrative building under NDITA, Sector-V, Salt Lake City | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | Supply & Delivery at site OPR System as per specification. Make ABB, Model: OPR-60. | abc126 | 1 | No |
| 2 | 2 | Supply & Delivery at site Mounting Mast,2m,30mm dia,Make ABB | abc127 | 1 | No |
| 3 | 3 | Supply & Delivery at site Mounting Mast,3m with guywire and base plate Make ABB | abc128 | 1 | No |
| 4 | 4 | Supply & Delivery at site Lightning strike counter,Make ABB | abc129 | 1 | No |
| 5 | 5 | Supply & Laying of Single core 70sqmm copper cable inclusive of material,installation,shorting link and fixing accessories like porceline insulator, fastner,nut bolts,stay wire with nylon jacket. (Make : Gloster/KEI/Polycab). | abc130 | 300 | Mtr |
| 6 | 6 | Cost of 'Electronic type' Earth pit (inclusive of construction charges for each earth pit +'Earth electrodes'-pipe in pipe type + 1bag (25kg bag) GRIC(Ground resistance improvement compound) + earth pit CI cover for each earthpit. | abc131 | 6 | Sets |
| 7 | 7 | Cost of Civil Work for Commissioning, Designing, Supervision, Labour charges for installation of lightning arrestor,labour charges for installation of 2nos,copper cable of 70sqmm of required length for installation,GI bar/Copper bar of adequate size to make inspection joint, material charges for 3nos.copper cable of 70sqmm of required length for installation, GI bar/copper bar of adequate size to make inspection joint, GI pipe 2.5 dia for ground level cable laying 40mtrs, transportation for above entire wok.(Including entire installation testing & commissioning) | abc132 | 1 | Item |
| 8 | 8 | Add GST 12% | abc133 | 1 | no. |
| 9 | 9 | Add CESS 1% | abc134 | 1 | no. |
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