In this episode, Russ finds a violation of Sec. 300.21 of the 2017 NEC. Someone punched a hole in a fire-rated wall to run some wiring through it but failed to patch it with an approved firestop material.
In this episode, Russ finds a violation of Sec. 300.21 of the 2017 NEC. Someone punched a hole in a fire-rated wall to run some wiring through it but failed to patch it with an approved firestop material.