Wiring Methods & MaterialsQuestion 72 of 120
At what maximum interval must Type AC cable be supported?
a.Every 6 feet
b.Every 4 and 1/2 feet
c.Every 10 feet
d.Every 3 feet
Explanation
Type AC armored cable is supported at intervals not exceeding 4 and 1/2 feet and secured within 12 inches of each termination. The 6-foot figure is for Type MC cable and 10 feet is for EMT, so mixing the cable types is the usual source of error here.
Law Reference: 2023 NEC §320.30Practice all 120 questions free — no signup required.
Related questions on this topic
- How must electrical metallic tubing be secured and supported on a normal horizontal run?
- How must Type NM cable be supported where it enters a box equipped with cable clamps?
- At what maximum interval must Type MC cable be supported and secured?
- What is the maximum support spacing for a 1-inch trade size rigid PVC conduit?
- What is the maximum total amount of bend permitted in one run of EMT between pull points?
- A cable passes through a bored hole in a wood stud. If the edge of the hole is less than 1 and 1/4 inches from the nearest edge of the stud, what is required?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against Journeyman Electrician Licensing Exam (NEC-based) · How we review