WesBell Electronics

Simple Electrical Wiring Tasks for NM-B Cable 8/2



Romex Wire NMB Cable 8/2 is UL Approved and Mil AA59544 Approved. Its materials include: solid bare copper strands, additional bare copper ground wire, thermoplastic high heat nylon (THHN) / THWN wire insulation, and PVC (polyvinyl chloride) jacket. It is only required and recommended for indoor usage and installation only. It weighs 186 pounds per 1000'. It can give service of 40 amps.

If you want to install and wire a room on your own and if you are highly skilled enough on installations of electrical wiring, then it might only be moderately difficult for you to accomplish this task. Below is a guide to serve as a basis (but not necessarily as a full instruction on how to do it).

What you will need are the following materials: 3/8-inch drill driver, spade bits, tape measure, hammer, reciprocating saw, nailing plates, wood chisels, and Romex® cable.

You need to drill through a well-measured span and distance of holes at the wall studs and/or ceiling joist. Use the spade bit (3/4-inch) to drill these holes and make the edges near each other within a 1 1/4 inches. Another setback to follow is to install a on the front stud or joist a steel nailing plate of 1/16 inches.

Try to run the NM-B Cable 8/2 (if this is the kind of cable you need) along the sides of the holed studs and joists. Within 4 1/2 feet and 8 inches of the electrical box, make sure that the cable is secured to the joist or stud.

Another factor to consider is to notch the framing members by using a reciprocating saw, wood chisel, and hammer. You can notch framing members if you are only rewiring. Make sure that notches are covered with nailing plates. Wires must be run through the corners after perpendicular holes that well-intersect are drilled.

Another interesting electrical wiring task is running the cables through an unfinished room. Here are some must-check processes.

First, wires must be pulled well through the holes. An approximate of 10 inches of wire sticking out is allowed so that these can be used for any plug, receptacle, or switch.

Metal protectors must be nailed on the edge of the studs that face the room. This is to ensure that when interior wall covering will be done to finish and furnish the room, any nails or screws used for attachment will not damage these wires already installed. Exterior of the studs must also be nailed.

Metallic boxes and non-metallic boxes are also needed to support the cables with the cable staples. The box support can be done for every measurement of 12 inches for the metal box to be used and 8 inches for the non-metallic box to be used for support.

Routing the NM-B Cable 8/2 and other Romex® cables is both a delicate and easy task. Thus, every electrical wiring task involving these cables must be secured beginning from the service panel to the destination or where the end user will begin using the power or electrical service.

Please call with any questions you might have.