Home Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Re: Feedback wanted on dedicated line tweak, please

What you propose about stripping the outer jacket off Romex and replacing it with foam pipe insulation or air hose is madness. There's so many things wrong with that. At the top of the list is that the coverings you add may cause the conductors to overheat during use. The ampacity of electrical conductors is based on their ability to dissipate heat. If you restrict that ability, the ampacity is reduced and the wire has to be derated. If you need shielding, try installing type MC cable (armored cable) or individual conductors in EMT.





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