Temporary Wiring using Romex
Here is something I run into from time to time on construction sites. Temporary lighting is powered from a distribution box with an extension cord made with Romex wire. The electrical sub contractor has basically made an extension cord out of a section of romex by placing a male and female plug on either end of the cable.
I'm wondering if this is a common practice, how others view it (I believe that solid wire is not made to be flexible). Is there something in the NEC that allows or prohibits this practice?
Any insights would be appreciated.
Comments (9)
It's 100% prohibited. Any repairs or modifications to electrical equipment have to be made by a qualified person and return it to its "approved" condition (e.g., UL). This means it must be the same material, capacity, design, etc. Since it's not the same design (can't tell about capacity and material by the picture), it's not permitted and would be in violation of the OSHA standard referenced below. NFPA also has similar wording and would not authorize this type of modification.
1926.403
"All electrical conductors and equipment shall be approved."
What Drew said 😂 but what’s the benefit of using the Romex wire? Is it just that they can fabricate their own extension cords at the length they want (assuming it’s also cheaper than buying a new extension cord)?
Drew got it right as usual. This is a very common practice, but is definitely not allowed under OSHA or NFPA 70 (NEC)
Great Post!