Explanation: In the 2020 NEC, a new sentence was added to the end of Sec. 450.9. It reads as follows: "Transformer top surfaces that are horizontal and readily accessible shall be marked to prohibit ...
This article is based on the 2014 Edition of the National Electrical Code (NEC). All you wanted to do was install a 30kVA, 120/208V transformer to supply receptacles in a new office structure on the ...
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