Rigid installed underground - Electrician Talk - Professional Electrical Contractors Forum

heel600 · 06-18-2008, 03:25 PM

I never did any work with rigid (sch80).

When installed underground, do you put anything on the threads to keep the water out?

One more question. Landscaper cut a buried 2ga aluminium THHN (just one conductor).

The fact that it's aluminum makes me wonder what it could be. And can I splice it? It's near the meter, but I don't think it goes to the panel (but not sure)

wirenut1110 · 06-18-2008, 03:38 PM

Make the joints up tight will be fine. A listed underground splice kit will be fine. Are you sure it's not CATV?

heel600 · 06-18-2008, 05:54 PM

Quote:

Originally Posted by wirenut1110

Make the joints up tight will be fine. A listed underground splice kit will be fine. Are you sure it's not CATV?

Huh?

I need to run to a pool, and because of rock, I can't get down 18".

wirenut1110 · 06-18-2008, 06:17 PM

are you using threaded pipe (rigid steel)? As far as the aluminum you can splice it underground if you use a listed splice kit. The single wire you're talking about are you sure it's not a cable tv wire? Not sure what you mean by "huh" ? if you're talking pvc it still has to be 12" but not too sure where the threads come in. I think you should be a little more descriptive.

heel600 · 06-19-2008, 09:14 AM

Quote:

Originally Posted by wirenut1110

are you using threaded pipe (rigid steel)? As far as the aluminum you can splice it underground if you use a listed splice kit. The single wire you're talking about are you sure it's not a cable tv wire? Not sure what you mean by "huh" ? if you're talking pvc it still has to be 12" but not too sure where the threads come in. I think you should be a little more descriptive.

I am sure it's al, not CATV.

I can't believe I forgot about those 3M splices, I feel like such an idiot!

Thanks!

a-bulb · 06-19-2008, 11:38 PM

Quote:

Originally Posted by heel600

Huh?

I need to run to a pool, and because of rock, I can't get down 18".

Huh. I forgot what I asked.

brian john · 06-20-2008, 07:11 AM

If the pipe runs downhill you might want to consider a box of some type prior to entering the panel for water to leak off. Water will ALWAYS get in the pipe. You either need to give it a way out prior to entering a panel at the pool or house or seal the conduits.

Idaho Abe · 06-20-2008, 03:51 PM

What article of the NEC has the sizing for conduit drains??

a-bulb · 06-20-2008, 10:26 PM

Quote:

Originally Posted by brian john

If the pipe runs downhill you might want to consider a box of some type prior to entering the panel for water to leak off. Water will ALWAYS get in the pipe. You either need to give it a way out prior to entering a panel at the pool or house or seal the conduits.

have you ever used these
http://www.o-zgedney.com/PDF/R1thru24.pdf they work real nice. I state in my contracts that I'm not responsible for patching around pipes or water that gets in. But! if the water comes in from the inside thats my problem. So if I can't pitch the pipe enough I use the sealing bushings.

Inspector Grump · 06-23-2008, 09:55 AM

Are you calling an inspector a pig?

I have that sign hanging in my office.

Useing THNN underground?

BackInTheHabit · 06-23-2008, 08:14 PM

Quote:

Originally Posted by heel600

Huh?

I need to run to a pool, and because of rock, I can't get down 18".

CATV - Cable Television

If it's CATV it's probably coaxial cable.

heel600 · 06-23-2008, 08:19 PM

Quote:

Originally Posted by BackInTheHabit

CATV - Cable Television

If it's CATV it's probably coaxial cable.

Sorry, I forgot that I also asked about the cut wire, as I really only intended to ask about the sch 80. Have a lot on my mind, that's why I went 'huh?"

It is not CATV.

Thanks for the help