Categories Guide

Quick Answer: Can MC cable be used with plastic boxes?

MC Cable Is for Metal Boxes Only! Plastic or fiberglass electrical boxes aren’t designed to be used with MC cable. Even if you’re able to rig up a connection to a plastic box, you will fail the electrical inspection.

Can you use metal conduit with plastic boxes?

Plastic junction boxes cannot be used with metal conduit, which is required in various installations, such as outdoors or when wiring runs are exposed (not concealed inside wall or ceiling cavities).

Can plastic or nonmetallic boxes be used with metal clad cables armored cables or metal raceways?

Yes. Where internal bonding means are provided between all entries, nonmetallic boxes shall be permitted to be used with metal raceways or metal-armored cables.

Can you use plastic outlet boxes?

When to Use Plastic Junction Boxes Use plastic boxes when: There are non-metallic (NM) cables leading in or out of the box. Metal-sheathed wiring relies on bonding with the metal electric box for grounding and should not be used in plastic boxes. You’re doing the job yourself.

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Can I use a PVC junction box with EMT?

CANTEX PVC Junction boxes connect effortlessly with our applicable PVC pipe and fittings. They can also be used with electrical metal tubing (EMT) as long as proper NEMA OS3 and NEC installation guidelines are followed along with all local codes.

Should I use metal or plastic conduit?

PVC conduits are also used in cases when electric wire may need to run below the ground or in an open environment that is exposed to air, dust and water. For applications in basement or garage, where wire generally run over the surface of the wall, electrical metal conduits are best.

Are metallic raceways or cables permitted to be used with nonmetallic boxes?

1: Where internal bonding means are provided between all entries, nonmetallic boxes shall be permitted to be used with metal raceways or metal-armored cables.

Does the NEC allow metal raceways to be used with nonmetallic boxes?

According to NEC 314.3(Exceptions) it is allowed to use metal raceways and metal-jacketed cables (BX) with nonmetallic boxes, the exception is that all metal raceways or cables entering the box should be bonded together so that the integrity of the grounding path with other equipment is maintained.

Where non metallic enclosures for switches are used with metal raceways or metal-armored cables they shall?

Where nonmetallic enclosures are used with metal raceways or metal-armored cables, provisions shall be made for connecting the equipment grounding conductor.

How do I connect my PVC box to Romex?

Use some caulking on both sides of the gasket with it and seal it all up as you mount the PVC box to the wall. The romex feed from the back just needs to be secured 12″ from the box. No anchors are needed inside the box. If you have a very smooth exterior wall, only caulking would be needed.

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Does a plastic electrical box need to be grounded?

Plastic electrical boxes have their pluses and minuses. Because they are plastic, there is no need to attach a ground wire to it. Since it is made of a non-conductive material, switches and outlets cannot short out if they touch the side of the box.

Do you have to ground metal boxes?

yes, the box should be grounded. It should not be grounded through the devices, but by means of a machine screw, clip, or through metal conduit.

Does a junction box need to be metal?

In general, he recommends plastic boxes for switches and receptacles and metal boxes for light fixtures. Metal boxes are required when the existing wiring in the home is metal clad cable and must be bonded to the ground wire.

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