national electrical code
national electrical code
(OP)
Can I tie into a 277 volt lighting circuit and transform down to 120 volts and feed ceiling outlets used for promotional purposes?
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RE: national electrical code
RE: national electrical code
Secondary overcurrent protection is not required on 1-phase 2-wire transformers. See NEC 240.4(F) for details.
RE: national electrical code
You're right, provided primary protection is sized according to this paragraph.