ECN Forum Forums Code Related Discussion NEC & other Code issues Conductors rated 125C

This might be a dumb question, but what type of wiring is actually in the fixture itself, and can you get more of it? (Assuming the fixture is rated for wet location, and the heat it generates.)

Still waiting for an answer from the engineers at Hadco regarding this issue...

shortcircuit

Perhaps I could buy into that if the fixture runs 24/7 and we forget 300.5(D)

From my experience servicing underground light fixtures it is most definitely a wet location.

The heating and cooling continuously pulls in damp air which the heat than turns to vapor and corrodes everything in the fixture.

I don't have a solution for Short, MI could work but it is cost prohibitive.

[This message has been edited by iwire (edited 10-11-2006).]

Ahh, not merely _wet_ rated conductors, but _steam_ rated conductors

-Jon

I'm telling y'all, you just need to get some MIL-SPEC cable! What size OCP are we talking about? LSTSGU-9 or so would probably work here. The jacket is waterproof, oil-proof and good to well past the boiling point of water. You can get it armored, too, if you want. (I *think* it's tested for immersion in 400°C oil, but I can't find the test docs at the moment to verify that.)

http://www.generalcable.com/NR/rdonlyres/8044A740-8883-4F96-B4E5-50B6C4038960/0/M 24643_16.pdf

This stuff is ubiquitous on ships; they use it for power (no conduits either) to the complete exclusion of pretty much everything else.
[This message has been edited by SteveFehr (edited 10-13-2006).]

[This message has been edited by SteveFehr (edited 10-13-2006).]

Steve if the cable or conductor is not in the NEC it does not exist for our purposes.

It may be the best for the job but it has to be listed in the NEC for us to use it.

Hadco sent me high temp sleves to slip over the thwn supply conductors.

One for each wire. The sleves are 3/8in diameter and 9in long...

shortcircuit