Based on the 2023 NEC.
Question: If the conductors of a type NM cable are damaged in a box by a drywall router such that there is less than 6 in. of conductor, can the conductor be extended with a splice or must the cable be replaced?
See answer below.
Answer: A splice is permitted to extend the conductor.
Explanation: Section 300.14 was modified in the 2023 NEC to clarify the 6 in. of free conductor required can be spliced or unspliced.
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]