ENT

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johnjohn

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Is it permisable to install BX or MC cable inside of ENT in a High Rise building while the ENT is imbedded in the concrete floor?

Does this violate it's UL rating?

Will condensation build up and corrode the cable?
 
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bphgravity

Senior Member
Location
Florida
Re: ENT

I don't see anything that would specifically prohibit type AC or MC from being installed in ENT embedded in concrete. I don't feel condensation would be a problem. The only issue I could see would be raceway fill.
 
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bphgravity

Senior Member
Location
Florida
Re: ENT

It depends on what edition you are refering to. In the 2002 NEC, 362.22 states cables can be installed where permitted in the cable article. Type MC specifically mentions raceways, type AC does not. In the 2005, the "permitted" has been changed to "where such use is not prohibited". I don't believe there is a single cable article that prohibits the installation of cable in a raceway, including types AC and MC.
 
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