On 2006-01-28, RBM wrote:

The box on the house is fine. In my opinion, the whip is fine
too. I've just had some real particular inspectors give me grief
about conductor types in outdoor conduits

Well, I just read a long thread about this topic at mikeholt.com. It
comes down to an interpretation of part of NEC Article 225 "Outside
Branch Circuits and Feeders". The second sentence of 225.4 reads:

Conductors in cables or raceways, except Type MI cable, shall be of
the rubber-covered type or thermoplastic type and, in wet locations,
shall comply with 310.8.

310.8 specifies what wire types can be used in wet locations. The
question is whether this sentence means "conductors . . . in wet
locations shall comply with 310.8" or "conductors in cables or
raceways . . . in wet locations shall comply with 310.8". My money is
on the latter interpretation, since the former interpretation just
seems to be a reiteration of 310.8, so there would be no need for the
second half of the sentence.

Anyway, I'll use THWN.

Thanks, Wayne