Electrical Engineering - Re: Actual Ampacity Rating ROMEX SIMPull Type NM-B in a residential attic.

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Re: Actual Ampacity Rating ROMEX SIMPull Type NM-B in a residential attic.

gfretwell@aol.com

2006-05-14, 1:21 am

On Sun, 14 May 2006 03:10:33 GMT, **THE-RFI-EMI-GUY**
<rhyolite@nettally.com> wrote:

>Nowhere does this cable have any marking as to the temperature rating or
>type of insulation, so off I go to the website where I find this
>statement in a product sheet:
NM-b uses a 90c conductor and you use the 90c column for derating.
Since this is a spa your AHJ may want wire in pipe (insulated ground
wire)./ Check before you buy anything.

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