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  1. Apr 29, 2023 · Use a plastic electrical box for. NM or Romex plastic sheathed wires leading in or out of the box. Grounding is independent of the box. Old work or remodel box installation that attaches to the drywall, not the studs. Installations that place less strain on the box.

    • How to Secure NM

      It also prevents the cable from rubbing against the edge of...

  2. Apr 21, 2010 · Can you use a metallic cover on a plastic box? The scenario I'm thinking of would be a weatherproof plastic box with GFI's and a metallic in use cover. My thinking is that there would be a bonding issue with the cover. I don't have a cover in front of me.

  3. Jan 2, 2021 · You can use plastic covers on metal boxes. Metal covers require that you use a proper method to ground them as well. Typically being screwed to a grounded metal box or a grounded device (receptacle/switch) suffices. Note that if these not installed recessed in the wall, you probably want to get coverplates designed for exposed boxes.

  4. Jun 2, 2022 · Follow these expert tips to install an electrical box into drywall or plaster without the need for wall studs or joists. Not all fixtures need to be attached to a wall stud or joist. Lightweight fixtures can hold up on plaster or drywall if you have a remodel electrical box.

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  5. Sep 1, 2010 · In general, plastic switch and receptacle plates are intended for flush installed boxes and are not to be mated to the edges of a surface mounted box. In my area, it won't fly. Surface mounted boxes are intended to be fitted with a rasied cover or, in the case of a handy box, a metal handy box blank or device plate. Upvote. # 3. 09-01-10, 06:06 PM.

  6. Mar 31, 2023 · Baseboard heaters. Many permanently installed appliances, such as kitchen vent hoods, dishwashers, and hot water heaters, also don't require junction boxes. With these devices, if the electrical wires will be exposed or run outside of a wall, ceiling, or floor cavity, the wires must be contained inside some type of flexible conduit or be metal ...

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  8. There are two types of junction boxes: new work, installed where the wall framing is open, and old work, installed after the drywall is in place. Each type is available in metal or plastic. Metal boxes are used primarily to house metal conduit or armored (BX) cable. Plastic boxes are used to house the more common non-metallic (plastic) sheathed ...

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