The National Electrical Code requires that plastic-sheathed cable (commonly called Romex) be protected in areas ... 1 for all the clamps combined, and 2 for each device (switch or receptacle ...
The Family Handyman on MSN29d
15 Electrical Mistakes Homeowners Make
I can’t tell you how often I’ve found NM-B (Romex) cable resting ... Solution: Use a cable clamp. “When using metal junction ...