Answer Posted / leturtle
It is normal practice to have a rating for the earthing
system commensurate with the maximum system design fault
level. The normal maximum 400kV fault level is 63kA 1s.
Take the formula from EA TS 41-24 [6]
If you can't find it go to www.ees-group.co.uk on the FAQ
section.
| Is This Answer Correct ? | 1 Yes | 4 No |
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