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| 1 | Erection of galvanized iron structural materials for the supporting structure of circuit breaker,Triple pole isolator,Single pole isolator,Tubular bus,Tertiary bus,CTs,PTs,LAs,NCT, columns, beams etc. using bolts & Nuts including punching of holes, transporting of materials from the stock yard to the work site as per the direction of dept. staff at site |
| 2 | Erection of 1 No. 110 kV LA on the already erected structure after opening of crates at the place of storage leading to site carefully, keeping lines and levels as per the direction of the departmental officers. |
| 3 | Erection of 1 No. 110 kV CT/PT on the already erected structure of above 1.5m height after opening of crates at the place of storage, leading to site carefully keeping at vertically not allowing tilting from vertical position more than the specified angles, keeping lines and levels as per the direction of the departmental officers, including all labour charges, hire charges of tools& tackles etc. |
| 4 | Dismantling carefully and leading one no of 110 kV CT/PT from the place of erection including support structure , mechanism box compressor, pipe lines etc. to site , cleaning and erecting on foundation using suitable lifting tools, after disassembling necessary parts if required, etc. complete as per the direction of departmental officers. |
| 5 | Unpacking carefully and leading one set of 3 pole EHT110/66 kV Circuit Breaker from the place of storage, including support structure , mechanism box compressor, pipe lines etc. to site , cleaning and erecting on foundation using suitable lifting tools, after disassembling necessary parts if required, to lines and levels and assembling all the parts , connecting mechanism etc. in complete shape and making ready for commissioning as per the direction of departmental officers. |
| 6 | Erection of one set 110/66 kV Bus Isolator on the already erected structure including opening crates and conveyance of all accessories from the place of storage to the place of erection to lines and levels, erection of mechanism box , checking operation and aligning properly, including cutting, welding etc.complete as per the direction of departmental officers. |
| 7 | Dismantling carefully and leadingset 110/66 kV Bus Isolator from the place of erection including support structure , mechanism box compressor, pipe lines etc. to site , cleaning and erecting on foundation using suitable lifting tools, after disassembling necessary parts if required, etc. complete as per the direction of departmental officers. |
| 8 | Erection of one set 110/66 kV line Isolator on the already erected structure including opening crates and conveyance of all accessories from the place of storage to the place of erection to lines and levels including erection of mechanism box checking operation and aligning properly as per the direction of departmental officers. |
| 9 | Providinginterconnection between equipments using ACSR Moose/ Kundah/ wolfSingle conductor at both ends with compressed/ bolted ends including uncoiling and cutting of conductor as per the direction of departmental officers. |
| 10 | Providing droppers and connecting to lines / equipments or jumper between two buses without suspension insulators using ACSR Moose/ Kundah/ wolfSingle conductor at both ends with compressed/ bolted ends including uncoiling and cutting of conductor as per the direction of departmental officers. (For one phase) |
| 11 | Uncoiling, paving out, stringing and fixing of bus bar using ACSR Kundah / Moose single conductor for one phase of 66/110 kV bus of span up to 30 m by cutting the conductor to sufficient length, crimping using compressor / bolting the two ends, washing, cleaning and drying the insulator discs, fixing the conductors to the yard structure with sufficient tension using string of insulators and hardware complete. at both ends, fixing of arcing hornes including transportation of materials from the stockyard to the site under the supervision and direction of department staff at site.(All materials will be supplied departmentally at free of cost). |
| 12 | Stringing and fixing earth wire of size 7/9, 7/10 or 7/3.15 between top of the columns and to terminal tower at 33/66/110/220 kV substations with compressed / bolted ends at proper tension including uncoiling and cutting of conductor , jumpering, giving earth bond connections by drawing the end of the conductor through the columns, jointing where ever necessary providing back stays at the time of stringing etc. as per the direction of the departmental officers. |
| 13 | Drilling holes in yard structure |
| 14 | Cutting of steel angle in yard structure erection |
| 15 | Welding charge for welding on iron parts using arc welding as per standards |
| 16 | Laying of departmentally supplied GI strip/Copper strip of suitable sizeincluding cleaning and neatly bending of strips ,cutting, removing of metal/earth in the yard and burying earth strip to the required depth re-doing the yard metalling as per the direction of the departmental officers. |
| 17 | Welding one end of the bended GI strip of size not less than 50x6mm with the riser of the already laid earth mat, welding 150mm in length, 6mm thick on both sides & end of the strip and connecting other end with nuts & bolts if required as per the directions of the department officers. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes(No.E7018) cost of anti corrosive paint etc. complete. |
| 18 | Welding one end of the GI stripnot less than 50x6mm with the structure with a welding length of 50mm & 6mm thickness on both sides & end of the strip and connecting other end with bolts & nuts if required including hire charges of DC arc welding set, current charges, cost of low hydrogen DC arc welding electrodes (No.E7018) cost of anti corrosive paint etc. complete. |
| 19 | Welding one end of the bended GI strip of size 50x6mm with the riser of the already laid earth mat, welding 150mm in length, 6mm thick on both sides & end of the strip & other end of the strip with yard structure at 2 points 50mm apart each welding points having 50mm length and 6mm thick on both sides & end of the strip including the charges for connecting the strip with structure using bolted joints as per the directions of the department officers. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes(No.E7018) cost of anti corrosive paint etc. Complete. |
| 20 | Welding overlapping joints of 50x6mm GI strip with 50mm long, 6mm thick welding on all three sides after doing 2 Nos. bolted joints at the centre as specified after cleaning the surface. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes( No.E7018) cost of anti corrosive paint etc. complete. |
