Based on the 2023 NEC.
Question: True or false? Dwelling units require surge protection devices.
See answer below.
Explanation: The requirement for surge protection at dwelling units was added to the 2020 NEC in Sec. 230.67 for all services supplying dwelling units. The 2023 NEC expanded those requirements to include dormitory units, guest rooms and guest suites of hotels and motels, and areas of nursing homes and limited-care facilities used exclusively as patient sleeping rooms. Requirements for surge protection were also added to Sec. 215.18 and Sec. 225.42 for any of these same locations that are supplied by a feeder.
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]