procurement of ehv grade-i transformer oil (tr-04/2022) procurement of ehv grade-i transformer oil (tr-04/2022) , electrical items : , ehv grade i transformer oil for power transformers conforming to all technical particulars as detailed out in annexure-i (volume-ii) attached. the oil should be supplied in road tankers with nitrogen cushioning under positive pressure , (b) structure for item 3 (a) above , (a) 36 kv gapless lightning arrester with terminal connector meeting the technical requirement as per section – iii, annexure - iii , (b) structure for item 4 (a) above , (a)33 kv isolator with earth switch complete with insulators & all accessories meeting the technical requirement as per section – iii, annexure - iv , (b) structure for item 5 (a) above , 33 kv vacuum circuit breaker with structure meeting the technical requirement as per section – iii, annexure - v , 33 kv control & relay panel meeting the technical requirement as per section – iii, annexure - vi , 33 kv bolted type post insulator structure complete with 33 kv post insulators meeting the technical requirement as per section – iii, annexure - vii