Repair programs
Technical maintenance and repair of the Unified National Electric Grid facilities is executed in accordance with the repair programs which are being annually designed by the company’s specialists. The annual repair programs are implemented in order to improve performance reliability of the electric grid equipment and they include repair of the capital equipment at substations, elements of transmission lines, buildings and structures.
Scopes of the key repair works in JSC FGC UES (exclusively of the target programs)
| Description | UM | 2009 |
|---|---|---|
| Grid line clearing | ha | 26,372 |
| Replacement of insulators on overhead transmission lines | unit | 44,207 |
| Repair of foundations of overhead transmission line supports | unit | 10,027 |
| Replacement of protective earth wires on overhead transmission lines | km | 141.6 |
| Replacement (strengthening) of overhead transmission line supports | unit | 991 |
| Replacement of distance pieces on overhead transmission lines | unit | 3,390 |
| Repair of autotransformers | phase (unit) | 281 |
| Repair of shunt reactors | phase (unit) | 50 |
| Replacement of 110–750 kV bushings on oil-filled equipment | unit | 111 |
| Repair of circuit-breakers | unit | 2,028 |
| Repair of disconnectors | unit | 6,716 |
| Replacement of optical IC | unit | 708 |
| Repair of compressors | unit | 276 |
Scopes of works on the target programs on JSC FGC UES facilities
| Description | UM | 2009 |
|---|---|---|
| High-voltage bushings replacement program for JSC FGC UES substations | unit | 620 |
| Reliability improvement program for optical IC | unit | 25,575 |
| Program aimed at bringing width of 220 kV overhead transmission lines cross holes up to the specified value | ha | 33,607 |
| Protective earth wires replacement program for 220-500 kV overhead transmission lines | km | 1,564.3 |
| Porcelain insulation replacement program for overhead transmission lines | unit | 285,796 |