I'm going to surface mount conduit and receptacle boxes from a subpanel to various locations in my shop. Do you have a preference for Schedule 40/80 or metal conduit? I used Schedule 40 (or 80) in my old shop and it was super easy, and it seems less expensive if you don't have a lot of bends.
Shop electric in surface mounted conduit
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Check with your local code office. A friend of mine in the DFW area wired up his shop with PVC only to have the inspector tell him he needed to have it in metal. Not a single clue if that was valid or why, but it was...Please like and subscribe to my YouTube channel. Please check out and subscribe to my Workshop Blog. -
Any reason to use PVC vrs EMT? EMT “use to be” much cheaper at the big box stores. Most fittings are screw in vrs glue together so they can be easily reused, it has any number of fittings and adapters. It’s as easy or IMPO much easier to install. With a cheap bender you can get quite creative and do a professional looking job. In my first shop I surfaced mounted 40 pvc and after a couple of years I had to go back and support it in the longer runs because it sagged. EMT isn’t prone to sag. There was a question about how many wires you could run in conduit because of heat dissipation but I don’t know if that is a factor in a home shop, and whether or not the do it yourself installed even bothers to adhere to the specs. If it is a problem I suppose the metal EMT would dissipate the heat quicker.Comment
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My county uses the 2017 NEC which does allow PVC--so does 2020 NEC. The NEC says Schedule 40 PVC conduit is permitted for exposed locations where not subject to physical damage. Schedule 80 PVC conduit is identified for use in areas subject to physical damage.
My long term plan was to dismantle and take everything with me if we ever moved and I still planned to continue woodworking.Last edited by atgcpaul; 02-28-2022, 04:29 PM.Comment
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There was a question about how many wires you could run in conduit because of heat dissipation but I don’t know if that is a factor in a home shop, and whether or not the do it yourself installed even bothers to adhere to the specs. If it is a problem I suppose the metal EMT would dissipate the heat quicker.
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