NM cable running parallel with stud framing shall be installed not less than __________ from the edge of studs unless physically protected.

NM cable running parallel with stud framing shall be installed not less than __________ from the edge of studs unless physically protected.

• A. 1 inch
• B. 1.25 inches
• C. 1.5 inches
• D. 2 inches

Answer: (B)

NM cable run parallel to studs must be kept away from the edge enough to avoid damage from fasteners like nails or screws. The required minimum distance from the edge of the studs is 1.25 inches. If you can’t maintain that distance, you must protect the cable with a steel nail plate (or other appropriate physical protection) to prevent penetration. The other distances don’t meet the standard rule, so 1.25 inches is the correct minimum.

NM cable run parallel to studs must be kept away from the edge enough to avoid damage from fasteners like nails or screws. The required minimum distance from the edge of the studs is 1.25 inches. If you can’t maintain that distance, you must protect the cable with a steel nail plate (or other appropriate physical protection) to prevent penetration. The other distances don’t meet the standard rule, so 1.25 inches is the correct minimum.