New answers tagged conduit
If you're just looking to get a power supply to the shed, you probably don't need to use conduit at all. Armoured cable is suited to being run underground and doesn't need to be in a conduit. Additional benefits are that it's more resistant to a stray spade trying to dig through it (though if you aim to bury deep enough, that shouldn't be a problem - general ...
You could use "smurf tube" (Electrical Nonmetallic Tubing) or rigid PVC to have a non-conductive conduit. Be sure to bond any metallic conduit that is separated by such non-metallic conduit, or just use nonmetallic the whole way with ground wires. I suspect you are not supposed to contact the K&T in any case and should be securing the wires or conduit to ...
Depending on the type of conduit used, the codes for securing and supporting it are a bit different. In general, the conduit will have to be supported every 3-10 ft, depending on the type and size conduit used. Fireblocking between floor may also be required. International Residential Code 2012 Chapter 3 Building Planning Section 302 Fire ...
If you use WireMold conduit (which isn't nearly as ugly as round conduit), you can screw the backing strip to drywall anchors, studs, whatever you have, then snap the conduit body on over the backing strip. That's about as anchored as it can get.
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