Explanation: As noted in Sec. 450.13(B) of the 2020 NEC, transformers placed in hollow spaces must be no larger than 50kVA. Lupacchino is a senior design engineer with Gaylor Electric, Inc. in ...
Explanation: As stated by Sec. 450.13 (B), "Dry-type transformers 1,000V, nominal, or less and not exceeding 50 kVA shall be permitted in hollow spaces not permanently closed in by structure." ...