IS: 1180 (Part 1) - 1989; Outdoor type three-phase distribution transformers upto and including 100kVA 11kV - specification Part 1Non-sealed type
IS: 1180 (Part 1) - 1989; Outdoor type three-phase distribution transformers upto and including 100kVA 11kV - specification Part 1Non-sealed type
- New Delhi BIS 1990
- 7p
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