Nm Wire Run Through Residential Attics

In most cases the nm cable must closely follow the building surface or another means of support for the cable must be provided.

Nm wire run through residential attics.

Fold the ground wires neatly into the back of the box photo 11. Step 8 locate the wires at the sites where you fed them to from the attic and complete your connections first then secure or conceal the rest of the wire. After you窶况e run the wires through the clips you snap a plastic cover over the entire assembly. Wiring methods type nm wire support type nm nonmetallic cable shall be secured at intervals not exceeding 1 4 m 4 5 and within 300 mm 12inches of each box.

Push the long wire through the hole in the top of the special green wire connector and connect the remaining wires to it by twisting the connector clockwise until it s tight. Once you are running the wire feed both ends of the wire through their corresponding holes and climb down from the attic. Normally the cables carry 10 12 or 14 gauge conducting wires for individual house circuits. If a lot of wires are already hanging from the bottom of the floor joists you can run the wires through raceways that fasten to the bottom of the joists.

Any nm cables bundled together for more than 24 will require an ampacity adjustment. Snip all the white neutral wires to the same length 6 in. It could be installed exposed in a residential garage or in an attic or basement. Also if they re run in an attic space above the insulation then they would also be adjusted for the attic ambient temperature.

Nec 336 18 and 370 17 type nm nonmetallic cable shall be secured at intervals not exceeding 4 1 2 feet and within 12 inches of each box. Many basements attics and storage areas do not have drywall applied so the trusses joists or framing members are left exposed. Nm cable is simply a bundle of individual conducting wires wrapped in a plastic vinyl outer sheathing. Nm cable also commonly known by the common trade name romex is the most common form of electrical wire.

You simply mount a small plastic clip to every other joist.