Running Wire Through Metal Siding

Running wires inside rigid metal conduit rmc is a little more expensive than burying underground feeder cable uf but it saves labor.

Running wire through metal siding.

A favorite target of electrical inspectors is the improper use of non metallic cable nm in exposed locations such as basement foundation walls or along the face of studs and joists in unfinished framed spaces. The national electrical code which is the basis for all local building codes has specific regulations for installing electrical wires so that they are protected from damage. A loop provides extra length for minor repairs or rerouting later. One method is to run individual wires.

Metal naturally conducts electricity so to safely run wires through a metal building you have to protect the wires from wear. Use wire stripped to strip 1 2 inch of insulation from each individual wire. Step 1 drill a hole through your structure where you will supply your power. Rewiring a house from the outside using conduit.

The metal opening is 1 4 1 2 inch wider than the 2 5 3 inch conduit allowing weather to infiltrate area. Fasten the cable with clamps. To prevent electrical shock properly grounding your electrical system is important especially in a metal building. The metal siding has a electrical conduit penetrating the tin vinyl board and batten siding on the east west north south wall exposure yada yada the main conductors are insulated so we see no concern.

Cut a separate piece of cable about 6 inches long. Using metal conduit means less digging. Remove the sheathing and strip 1 2 inch of insulation from the end of the black wire and white wire. This is because the top edge of rmc has to be only six inches below the surface of the ground while uf must be buried 12 inches deep deeper in some situations.

Rather than tear out walls or spend weeks fishing. Using these separate 6 inch wires attach the bare copper wire to the green screw on the bottom of the outlet. Do this by running them through metal conduits. It also forces water to drip off the cable rather than follow the cable into the wall.

Use cable clamps to hold wire. With an enormous amount of pvc sizes and fittings you can run electrical wire outside and up a tree should you choose to. There are two ways to run electrical wiring on the exterior walls of a house or other structure.