Just came across this thread...5 months later! But to add my two cents to your last sentence, Member "sid", my understanding of the NEC is that:
Schedule 40 is suitable for underground, while it is Schedule 80 that is used more for exposed work, i.e., that is likely to be subject to damage.
Anybody still out there on this thread?
[This message has been edited by Tripp (edited 09-26-2005).]
