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Electrical conduit
#7401465
01/11/19 04:03 AM
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Joined: Feb 2012
Posts: 2,868
Cow_doc.308
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We’re about ready to bury electrical to my shop we’re building. Going underground for aesthetics when we build our house, and I don’t want to mow around power poles.
Got to trench about 500’. I’ve been quoted like $12/ft for trenching and conduit.
Spec says 2 inch schedule 40 pvc conduit with top of pipe at least 36 inches deep. I figure I can rent a trencher and do this myself right? Or is there something I don’t know about involved? Would save me a ton of money to DIY it.
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401543
01/11/19 12:04 PM
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Joined: Jan 2011
Posts: 65,525
SnakeWrangler
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I did mine in 2” about 2’ down. Easy
I believe in science and I’m an insufferable [censored] Actually, BBC is pretty damn good "You Cannot Simultaneously Be Politically Correct And Intellectually Honest!"
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Re: Electrical conduit
[Re: SnakeWrangler]
#7401577
01/11/19 01:16 PM
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Joined: Jan 2014
Posts: 12,761
Paluxy
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I did mine in 2” about 2’ down. Easy Same here. just find the water, sewer, electric, gas lines around your house
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Re: Electrical conduit
[Re: SnakeWrangler]
#7401579
01/11/19 01:24 PM
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Joined: Oct 2004
Posts: 39,542
redchevy
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I did mine in 2” about 2’ down. Easy Same here. For the op keep in mind you or someone will be pulling wire through it at some point, keep it as straight as possible and no 90’s.
It's hell eatin em live
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Re: Electrical conduit
[Re: Paluxy]
#7401586
01/11/19 01:34 PM
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Joined: Feb 2012
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Cow_doc.308
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I did mine in 2” about 2’ down. Easy Same here. just find the water, sewer, electric, gas lines around your house It’s a straight shot. Only utility out there currently is water. I know where it is. Septic isn’t there yet and no gas so that’s easy enough
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401604
01/11/19 01:51 PM
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Joined: Apr 2011
Posts: 29,034
Western
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Like the guys said Doc, to easy sir. Worst case you can run the wire and slip the separate joints on if you have too, pulling 4/0 thru 2" can be a MOFO. Also, if you have any old nails, horse shoes any metal scrap (or buy another small copper wire) and bury beside the line along the run, will make finding it later much easier with a detector.
OH, ride on trencher cost more, but much easier/faster.
Last edited by Western; 01/11/19 01:51 PM.
If at first you dont succeed, then skydiving is not for you..
"Don't trust everything you read on the Internet"- Abraham Lincoln Dennis
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401607
01/11/19 01:53 PM
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Joined: Jan 2014
Posts: 12,761
Paluxy
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Once you get the conduit in you can use a shop vac to suck a string through there and then use the string to pull in a rope. I just use the top of a plastic soda bottle to make a "pig" that is smaller than the ID of the conduit and can slide easily through the conduit. It takes no time to get the string through. Takes 2-3 people to get the wire in. 1 to push and 1-2 to pull. Might need some soap on the first sweep 90. I've seen some people pull the wire as they glue the conduit together, never tried it that way. Go with whatever works for you. If you come into the bottom of a panel at the house, cut one of the formed bell ends of the conduit facing down and unglued. This will allow some movement of that wonderful clay soil without breaking the pvc connector at the panel.
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401626
01/11/19 02:02 PM
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Joined: Oct 2004
Posts: 39,542
redchevy
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I rented a walk behind self propelled on rubber tracks, it was a digging machine. Low cost, I think only $200. It dug my 200-foot strip so fast we went back to home depot and bought some more pvc to put in some extra hose bibs I had wanted too in the yard and then went to thin inlaws to trench a line.
It's hell eatin em live
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401766
01/11/19 04:14 PM
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Joined: Dec 2008
Posts: 22,630
Cast
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I would lay the cable out beside the trench and slip the pipe over it, then glue the joint. Don’t install the long sweep 90’s until you’ve rolled the pipe/wire into the trench. I would also consider adding an empty piece of 1 1/2” conduit with two pull strings in it. Never can tell when you might need it.
Cast I have a short attention spa
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401817
01/11/19 05:30 PM
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Joined: Feb 2012
Posts: 2,868
Cow_doc.308
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Thanks guys.
Oncor is going to pull the wire. They give an allowance per meter that's planned and the only thing that doesn't fit under that amount is the trenching and conduit. So, all I'm responsible for is the trenching and conduit with a pull tape inside.
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401830
01/11/19 05:50 PM
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Joined: Dec 2008
Posts: 22,630
Cast
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Cast I have a short attention spa
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Re: Electrical conduit
[Re: redchevy]
#7401834
01/11/19 05:53 PM
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Joined: Jan 2011
Posts: 65,525
SnakeWrangler
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I rented a walk behind self propelled on rubber tracks, it was a digging machine. Low cost, I think only $200. It dug my 200-foot strip so fast we went back to home depot and bought some more pvc to put in some extra hose bibs I had wanted too in the yard and then went to thin inlaws to trench a line. I did the same.
I believe in science and I’m an insufferable [censored] Actually, BBC is pretty damn good "You Cannot Simultaneously Be Politically Correct And Intellectually Honest!"
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401839
01/11/19 05:56 PM
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Joined: Feb 2012
Posts: 2,868
Cow_doc.308
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401853
01/11/19 06:07 PM
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Joined: Jan 2014
Posts: 12,761
Paluxy
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Re: Electrical conduit
[Re: Paluxy]
#7401860
01/11/19 06:14 PM
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Joined: Nov 2004
Posts: 11,407
Choctaw
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I did mine in 2” about 2’ down. Easy Same here. just find the water, sewer, electric, gas lines around your house Yep, be sure to call Dig Test. Texas 811
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Re: Electrical conduit
[Re: Cow_doc.308]
#7401884
01/11/19 06:42 PM
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Joined: Jan 2016
Posts: 7,759
snake oil
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Once you get it in measure and document on your plans location of line so you can flag it later when laying other utilities.
Last edited by snake oil; 01/11/19 06:42 PM.
"You may all go to hell and I will go to Texas".
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Re: Electrical conduit
[Re: Choctaw]
#7401905
01/11/19 07:05 PM
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Cow_doc.308
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I did mine in 2” about 2’ down. Easy Same here. just find the water, sewer, electric, gas lines around your house Yep, be sure to call Dig Test. Texas 811done
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Re: Electrical conduit
[Re: Cow_doc.308]
#7406562
01/16/19 09:56 PM
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Joined: Jul 2006
Posts: 110,795
dogcatcher
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Do it according to the current electrical code, if you don't it will probably comeback and bite you later.
Combat Infantryman, the ultimate hunter where the prey shoots back. _____________"Illegitimus non carborundum est"_______________
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Re: Electrical conduit
[Re: Cow_doc.308]
#7407026
01/17/19 01:14 PM
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Joined: Jan 2011
Posts: 65,525
SnakeWrangler
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I dug the trench. Laid out the wire beside the trench. Put the conduit together in 3-joint sections and walked them down the wire glue to the previous conduit and lay into the trench leaving the open end and wire outside of the trench. Just started at one end and worked towards the other. It was a whole lot easier walking the conduit down the line in sections vs. pulling 200' of stiff wire. Also made the 90-degree sweeps a lot easier.
Just an option.
I believe in science and I’m an insufferable [censored] Actually, BBC is pretty damn good "You Cannot Simultaneously Be Politically Correct And Intellectually Honest!"
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Re: Electrical conduit
[Re: SnakeWrangler]
#7407729
01/18/19 02:04 AM
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Joined: Aug 2005
Posts: 17,117
MikeC
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I dug the trench. Laid out the wire beside the trench. Put the conduit together in 3-joint sections and walked them down the wire glue to the previous conduit and lay into the trench leaving the open end and wire outside of the trench. Just started at one end and worked towards the other. It was a whole lot easier walking the conduit down the line in sections vs. pulling 200' of stiff wire. Also made the 90-degree sweeps a lot easier.
Just an option. I did the same for my old shop.
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Re: Electrical conduit
[Re: MikeC]
#7407817
01/18/19 03:28 AM
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Joined: Jan 2011
Posts: 65,525
SnakeWrangler
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I dug the trench. Laid out the wire beside the trench. Put the conduit together in 3-joint sections and walked them down the wire glue to the previous conduit and lay into the trench leaving the open end and wire outside of the trench. Just started at one end and worked towards the other. It was a whole lot easier walking the conduit down the line in sections vs. pulling 200' of stiff wire. Also made the 90-degree sweeps a lot easier.
Just an option. I did the same for my old shop. Way easier than pulling wire....
I believe in science and I’m an insufferable [censored] Actually, BBC is pretty damn good "You Cannot Simultaneously Be Politically Correct And Intellectually Honest!"
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Re: Electrical conduit
[Re: Cow_doc.308]
#7407830
01/18/19 03:38 AM
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Joined: Feb 2012
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Cow_doc.308
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Conduit is in place. Friend/client sent his crew with equipment and they knocked it out today. Saved me a lot of time and money. He's an Oncor contractor so they do this all the time.
Now to wait for Oncor to pull wires.
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Re: Electrical conduit
[Re: Cow_doc.308]
#7407882
01/18/19 04:18 AM
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Joined: Jan 2011
Posts: 65,525
SnakeWrangler
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Conduit is in place. Friend/client sent his crew with equipment and they knocked it out today. Saved me a lot of time and money. He's an Oncor contractor so they do this all the time.
Now to wait for Oncor to pull wires. Then its their problem..... I did my own and went the easy route....
I believe in science and I’m an insufferable [censored] Actually, BBC is pretty damn good "You Cannot Simultaneously Be Politically Correct And Intellectually Honest!"
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Re: Electrical conduit
[Re: Cow_doc.308]
#7407945
01/18/19 10:39 AM
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Joined: Apr 2011
Posts: 29,034
Western
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Thanks guys.
Oncor is going to pull the wire. They give an allowance per meter that's planned and the only thing that doesn't fit under that amount is the trenching and conduit. So, all I'm responsible for is the trenching and conduit with a pull tape inside. Walk in the park for you then Doc
If at first you dont succeed, then skydiving is not for you..
"Don't trust everything you read on the Internet"- Abraham Lincoln Dennis
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Re: Electrical conduit
[Re: Cow_doc.308]
#7410207
01/21/19 12:29 PM
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Joined: Jul 2008
Posts: 22,257
Texas Dan
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I went with direct burial electrical wiring for a similar application. I'm sure it'll last longer than me.
"Some people will never like you because your spirit irritates their demons."
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