480 volt delta system
- Thread starter romero07
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electricman2
Senior Member
- Location
- North Carolina
- Occupation
- Retired Electrical Contractor
Re: 480 volt delta system
Only if it meets any of the conditions in 250.20(B).
Only if it meets any of the conditions in 250.20(B).
jtester
Senior Member
- Location
- Las Cruces N.M.
Re: 480 volt delta system
John is correct that the NEC doesn't require grounding. Some utilities will, and some authorities such as MSHA will want grounding or at least ground fault monitoring.
John is correct that the NEC doesn't require grounding. Some utilities will, and some authorities such as MSHA will want grounding or at least ground fault monitoring.
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