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-   -   new under ground 220 electric wire (http://www.diychatroom.com/f18/new-under-ground-220-electric-wire-36397/)

eddie brown 01-20-2009 09:52 AM

new under ground 220 electric wire
 
can 2- 220 electrical wires be installed in same ditch and be touching or do they need not to touch before i cover with dirt.

ctsmiths 01-20-2009 10:03 AM

Are the cables Direct Burial type cable?

eddie brown 01-20-2009 10:05 AM

i need to install two seperate 220 underground wiring need to know if i need seperate trenches or can these wires touch in the same trench . wiring is desinged for underground .

ctsmiths 01-20-2009 10:06 AM

And what are you feeding with them?

eddie brown 01-20-2009 10:08 AM

Quote:

Originally Posted by ctsmiths (Post 216065)
Are the cables Direct Burial type cable?

yes cable is !

ctsmiths 01-20-2009 10:12 AM

OK. what are the 220 cables feeding?

eddie brown 01-20-2009 10:13 AM

Quote:

Originally Posted by ctsmiths (Post 216067)
And what are you feeding with them?

30 amp

ctsmiths 01-20-2009 10:21 AM

If they are for the same circut they have to be in close proximity, ( like if you use both cables to feed one piece of equipment) ,if not they don't.

Scuba_Dave 01-20-2009 11:35 AM

My Inspector wouldn't even allow (2) 120v 20a UF circuits protected by GFCI before going in the trench to share the same trench
I'd check with your Inspector 1st

chris75 01-20-2009 03:11 PM

Quote:

Originally Posted by Scuba_Dave (Post 216106)
My Inspector wouldn't even allow (2) 120v 20a UF circuits protected by GFCI before going in the trench to share the same trench
I'd check with your Inspector 1st

What crack pipe is he on?

rgsgww 01-20-2009 03:21 PM

Quote:

Originally Posted by Scuba_Dave (Post 216106)
My Inspector wouldn't even allow (2) 120v 20a UF circuits protected by GFCI before going in the trench to share the same trench
I'd check with your Inspector 1st


Wow...I bet he doesn't allow romex fished through walls.

Scuba_Dave 01-20-2009 05:32 PM

I wasn't going to argue with him :(
When I 1st called & said I was running UF 20a 12" down that would be GFCI protected, 1st they said I couldn't do that. Then I quoted the specific code out of NEC. They said they would have to call me back

They called back & said I could run 1 line per trench
If I ran (2) circuits they said someone digging could hit 240v
Waddya gonna do :huh:

chris75 01-20-2009 05:35 PM

Quote:

Originally Posted by Scuba_Dave (Post 216290)
I wasn't going to argue with him :(
When I 1st called & said I was running UF 20a 12" down that would be GFCI protected, 1st they said I couldn't do that. Then I quoted the specific code out of NEC. They said they would have to call me back

They called back & said I could run 1 line per trench
If I ran (2) circuits they said someone digging could hit 240v
Waddya gonna do :huh:


Yeah... tell them to educate themselves, Perfect example why some people dont get permits, the people inspecting are no smarter than the guy doing the install. :no:

Gigs 01-20-2009 05:38 PM

Well that makes some sense... That exception to allow UF at 12 inches specifically limits it to 120v 15 or 20 amps GFCI. So it's not too off the wall. At 24 inches he would have probably allowed you to fill the trench up with as many as you wanted.

chris75 01-20-2009 05:42 PM

Quote:

Originally Posted by Gigs (Post 216296)
Well that makes some sense... That exception to allow UF at 12 inches specifically limits it to 120v 15 or 20 amps GFCI. So it's not too off the wall. At 24 inches he would have probably allowed you to fill the trench up with as many as you wanted.


It makes no sense what so ever, do you think 120 is more safe or less safe than 240?


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