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How far from a box must Romex be secured?
How far from a box must Romex be secured? Nonmetallic-sheathed cable shall be supported and secured by staples, cable ties, straps, hangers, or similar fittings designed and installed so as not to damage the cable, at intervals not exceeding 1.4 m (4 1/ 2 ft) and within 300 mm (12 in. or 8″ using 314.17(C) Ex.
How far from outlet box must NM cable be supported?
12 inches
NM cable must be supported and secured every 4 ½ ft. and within 12 inches of every outlet box, junction box, cabinet, or fitting. Secure and support. Where nonmetallic cable is installed horizontally through holes or notches in framing members, it is considered supported and not required to be secured.
How close is the NM cable staple must be to the box when using plastic or fiberglass boxes?
Electrical code only requires that you staple within eight inches. Still, the more you can secure a wire, the better. So, if clamps are provided, use the clamps.
What is the code for stapling Romex?
Romex Wiring Support, NEC 336-18: Stapled, in a manner that does not damagethe cable, within 12″ of electric boxes; every 4-1/2 ft. intervals, and clamped to box. Cables run through holes in studs, rafters of floor joists are considered supported at those points.
What do I need to connect NM cable to metal box?
Now you’re ready to use one of the following types of clamps to secure an NM cable to the box. Some metal boxes come with saddle-shaped clamps already mounted inside the box. Usually, there are two clamps that can hold two cables each.
How big does a junction box have to be to not be stapled?
The radius of the curve of the inner edge of any bend during or after installation shall not be less than five times the diameter of the cable. junction box, cabinet, or fitting. Flat cables shall not be stapled on edge. As a sidenote, 1gang plastic boxes without internal clamps must be stapled within 8″ of the box.
Where does NM cable need to be secured?
NM cable must be supported and secured every 4 ½ ft. and within 12 inches of every outlet box, junction box, cabinet, or fitting. Secure and support. Where nonmetallic cable is installed horizontally through holes or notches in framing members, it is considered supported and not required to be secured.
How big does a cable need to be for a single gang box?
Note, this exception applies only to single-gang nonmetallic boxes. Section 336-18 stipulates that nonmetallic-sheathed cable must be secured within 12 inches of each box. But, where a cable is not secured to the box, it must be secured within 8 inches of the box.