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re: Electrician help please

Posted on 12/12/17 at 6:05 am to
Posted by Barneyrb
NELA
Member since May 2016
5081 posts
Posted on 12/12/17 at 6:05 am to
Generally 300 feet is not much concern. Bump your wire up one size and you should be good.

Posted by Beessnax
Member since Nov 2015
9130 posts
Posted on 12/12/17 at 6:06 am to
OK, thanks. I may need able to do at least part of it underground.
Posted by Errerrerrwere
Member since Aug 2015
38235 posts
Posted on 12/12/17 at 6:14 am to
Do you have the equipment to dig a 250’ trench?

I’m trying to save you time and money is all.
Posted by Beessnax
Member since Nov 2015
9130 posts
Posted on 12/12/17 at 6:14 am to
No, but the power company does.
Posted by Errerrerrwere
Member since Aug 2015
38235 posts
Posted on 12/12/17 at 6:16 am to
But it costs more. It takes longer.

If that isn’t a concern; have them do it. If it’s weather you’re concerned with; above ground isn’t a problem.

That’s all I wanted to stress really. But yes, it would look better is all.
Posted by Beessnax
Member since Nov 2015
9130 posts
Posted on 12/12/17 at 6:18 am to
Thanks!
Posted by Errerrerrwere
Member since Aug 2015
38235 posts
Posted on 12/12/17 at 6:19 am to
Np

You’ll get it done, man. There are a few sacrifices you’ll have to make either way; whatever you decide.

Posted by the LSUSaint
Member since Nov 2009
15444 posts
Posted on 12/12/17 at 7:54 am to
If the only sacrifice is a little more money...go underground. Not sure why the "bigger wire" keeps being said....above or below will take the same size.
Just go beliw ground, put and extra size wire for future possible additions, and be done with it
Posted by Chuker
St George, Louisiana
Member since Nov 2015
7544 posts
Posted on 12/12/17 at 8:09 am to
As far as digging your own trench the POCO may or may not allow the you to diy. Entergy stopped letting just anyone dig their own in MS. Reason was various reasons, ditch not deep enough, not close enough to poles, dug too long before actual laying of wire and rain and shite fills ditch partially in...you can probably think of other reasons.



As far as the distance you run into problems with that AFTER the power is stepped down from the transformer to your "low-voltage" household 120/240v.
They can run high voltage underground but I'd imagine its quite a lot more involved and thus more expensive. But if they did run the high volt underground then distance is basically a non-issue.


Also to keep in mind if you go above ground I think they require a considerable clearing before they will set poles. I'd imagine that could be a diy thing. They won't just run a service through the tight woods and then have to come out every time a limb falls. IIRC its a 40ft lane for high voltage and 20ft for low.


Posted by ultratiger89
Houston, Tx
Member since Aug 2007
3033 posts
Posted on 12/12/17 at 8:11 am to
quote:

V=I (sqrd)×R


Ohm's law is V=IR, nothing squared,

Use this LINK to size your wire it accounts for length and voltage drop. Use 3% voltage drop for your calculation. As for running underground vs. above ground if you look at this LINK you can size for the correct ampacity. It doesn't matter if it's below ground or in a raceway above ground the ampacities are the same. If you were to run conductors as the ones you see in free air for power transmission lines the ampacities for the same AWG cable will be higher.
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
29982 posts
Posted on 12/12/17 at 8:20 am to
quote:

V=I (sqrd)×R

That is incorrect. V=IxR. Power(P)=I(sqrd)xR

And none of that actually helps him determine wire size needed.

Posted by ultratiger89
Houston, Tx
Member since Aug 2007
3033 posts
Posted on 12/12/17 at 8:58 am to
quote:

none of that actually helps him determine wire size needed


yea that's why I provided the information just above your post so he would have the information he needed to size it correctly
Posted by Beessnax
Member since Nov 2015
9130 posts
Posted on 12/12/17 at 9:11 am to
Thanks so much for the help!
Posted by Napoleon
Kenna
Member since Dec 2007
69049 posts
Posted on 12/12/17 at 10:03 am to
In the long run at a camp jiffy get a disel or propane generator.
The running of all these wires and electrical is near the cost of a new generator.
How big a camp? Central air?

Most camps I've been to ran off a simple 5500watt
Posted by Beessnax
Member since Nov 2015
9130 posts
Posted on 12/12/17 at 11:49 am to
It's actually a mobile home, 10-1200 Sq ft
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
29982 posts
Posted on 12/12/17 at 2:56 pm to
I started the post and was called away. After I posted I saw your post, I was going to return and post a separate link to a calculator but you had done it already. Well done

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