As a separate note, Bulletin 68-7-11 is in respect to swimming pools... not sure why if it is allowed in other areas it is only mentioned in a Section 68 Bulletin... A forum community dedicated to professional electricians, contractors, and apprentices for residential and commercial work. Because both are considered "hot," no white wire is needed. Not only is it code, but also a good practice to ensure long life of the wire. Into an 1110 box, for a single plug. Romex is not allowed in wet locations. The sheathing used to be white but today, these wires have a color-coded sheeting to help identify gauge of the cable. The PVC plastic sheathing surrounding the insulated conductors and copper ground wire is non-conductive and heat resistant. The application of Romex wires is limitless, but most DIY-ers often find themselves confused about whether they can strip Romex and use it in a conduit outdoors. Just have a junction box where your work meets and you will be fine. There is also a paper wrapping around this wire. Pretty easy to do with rigid conduit (as long as it is never submerged), next to impossible with EMT. I think that might not be OK. P85_DA Supporting Member. The bottom line is this: if you could use NM there without conduit, then you could sleeve it in conduit. You may not run Romex along the surface of the wall. Both, the white and black wires, are insulated inside the sheath. I can do the calcs. However, if you run it in conduit you must use the width rather than the thickness for the conduit fill calculations. The inside of conduit in a wet location is considered a wet location. It looks tight and thats what alarmed me and why I'm checking. Keep in mind that UF is much more expensive to purchase then NM. Also, minimum burial depth for conduit (PVC I assume) is 18", unless you run rigid or IMC, in which case you can go a minimum of 6". For a better experience, please enable JavaScript in your browser before proceeding. If your cable is non-metallic sheathed cable (commonly called Romex or NM) there is no prohibition against installing it in flexible conduit. You also technically can not simply strip the jacket of the wire and run it in the conduit (the wire is Romex are not LISTED for use). Nate Although you can move to a larger size of conduit, the larger volume may not fit in the space you have for your project. . If all you are going to use is a light or a single outlet, thats fine. for two cables. The #8 Romex is rated at only 40 Amps. Conduit which is not subject to any weather would be OK, but very few outdoor locations fit that description. What you're looking at in the code book is referring to THHN and other wiring, that while insulated with a single coat is not insulated with a second covering and bound to 2 or 3 other wires. Furthermore, when you run the wire underground, it will be exposed to water, pests, pressure, weather, and most importantly, roots. is this true? I've never heard of Romex wire causing sweating inside conduit. However it is still venerable to damage as with NM Romex, so no, it cannot be installed in garages where the walls are open. Just make sure you get the correct stuff. You should use THHN wire if you go with conduit. I am not saying it meets NEC code, I am saying it will work without burning up. conduit, EMT, schedule 80 PVC NMC, pipe, guard strips, listed surface metal or nonmetallic raceway, or other means. also, my most recent code book (which is 2012) doesn't have a table 18. "Romex" is not rated to be in a wet location, even if it protected by a conduit. Even the inside of the conduit is a "wet" location. For smaller runs, you can easily run romex in PVC conduit without concerns of excessive heating. It not a long run. What you're seeing in the code book refers to THHN and other cables, which although isolated with a single layer is not isolated with a second coating and connected to another 2 or 3 cables. The reason I ask is went to home depot, and they so called " electrician" was trying to tell me NO he cant do that. JavaScript is disabled. I know people have different opionions on this and i was wondering is there any real saftly problems with the besides heat that the wireing may produce? The first issue is that the cable needs to be attached to the box with a proper strain relief connector- simply passing it through a pipe prevents you from using such a fitting. I've never heard of Romex wire causing sweating inside conduit. From there I'll use individual wires to run through 1" PVC conduit (already installed) out to the shed. If I could find it in the code book I would have the proof if I am right. two NM-B cables) because 2 "wires" are allowed only 30% conduit fill. The volume of regulators inside the conduit is limited by code so it might not work to use conduit. I am not saying it meets NEC code, I am saying it will work without burning up. for single wire (i.e. This is why when stripping Romex wires and running them, it is best to use a weather-resistant conduit – especially outdoors or near utility lines. One may also ask, can Romex be run in EMT? Normally the cables carry 10-, 12-, or 14-gauge conducting wires for individual house circuits.
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