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 Federal Grid Company (exclusively of the target programs)

Description UM 20092010 2011
Grid line clearing ha 26,372 29,000
23,424
Replacement of insulators on overhead transmission lines unit 44,207 52,101
45,558
Replacement of protective earth wires on overhead transmission lines km 141.6 172
60
Repair of autotransformers phase (unit) 281 302
338
Repair of shunt reactors phase (unit) 50 18
44
Repair of circuit-breakers unit 2,028 7,332
1,980
Repair of disconnectors unit 6,716 2,267
9,737
Repair of compressors unit 276 235
154

Scopes of works on the target programs on JSC FGC UES facilities

Description UM 2009 2010 2011
Program aimed at bringing width of 220 kV overhead transmission lines cross holes up to the specified value ha 33,607 24,370
29,857
Protective earth wires replacement program for 220-500 kV overhead transmission lines km 1,564.3 2,002
1,851
Porcelain insulation replacement program for overhead transmission lines unit 285,796 140,870
164,304