Based on the 2020 NEC.
Question: When is ground fault protection of equipment required for branch circuits?
See answer below.
Answer: When the branch circuit disconnect is rated 1,000A or larger and installed on a solidly grounded wye system of more than 150V to ground and not exceeding 600V phase to phase.
Explanation: These requirements are outlined in Sec. 210.13 of the 2020 NEC.
Lupacchino is a senior design engineer with Gaylor Electric, Inc. in Noblesville, Ind., and serves as an alternate on NEC Code-Making Panel No. 3. He is currently licensed in more than 80 jurisdictions. He can be reached at [email protected].
Sponsored Recommendations
Sponsored Recommendations
Sponsored
Sponsored