Based on the 2020 NEC.
Question: What are the requirements for GFCI protection of receptacles in a commercial repair garage?
See answer below.
Answer: All 125V through 250V receptacles supplied by single-phase branch circuits rated 150V or less to ground, 50A or less, and all receptacles supplied by three-phase branch circuits rated 150V or less to ground, 100A or less shall have ground-fault circuit-interrupter protection for personnel.
Explanation: In the 2020 NEC, Sec. 511.12 was revised to align the GFCI requirements with Sec. 210.8(B). This eliminated the language "where electrical diagnostic equipment, electrical hand tools, or portable lighting equipment are to be used," which now mandates GFCI protection for personnel for all receptacles meeting the current and voltage limitations installed in a commercial repair garage.
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].
About the Author
John Lupacchino
Senior Design Engineer
John began his career in electrical construction as an apprentice and worked his way through the trade. He is currently licensed in more than 80 jurisdictions. With more than 35 years of experience, he now plays a vital role in Gaylor Electric’s Engineering Department, where he serves as a senior design engineer. With a focus on design engineering, quality assurance, and code compliance, he has earned the highest level of respect from industry professionals alike. John currently serves as an alternate on NFPA 70 Code Making Panel No. 3. In addition, he enjoys sharing his electrical knowledge through education. As an Associated Builders and Contractors instructor, he continues to help grow a new generation of high-performing construction leaders.