The difference in construction between NMB and UFB is profound. The NMB
I have seen has a jacket around individual conductors, each of which is
covered by what seems to be paper insulation. The UFB is entirely
molded, including the inside insulation, and there are no voids for
water to get in.
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
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On 3/1/2012 10:34 PM, jcjacobsen@q.com wrote:
> The current question on the table is Romex for Rotors... in conduit..
>
> Jim Lux, said in part:
>
> <snip> But there's no rule about Type NM (Romex) in conduit...<snip>
>
> I think if you read more closely you will find that if it's in BURIED conduit
> the cable must be rated for water contact......... UGF, or THNW or something
> like that. I DO know the designation has to have the "W" in it. Of course,
> this pertains to normal 120/240 volt circuits.........
>
> Just my $.02
>
> 73
> K9WN Jake
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