Re: Questions about buried power to a new shed (Pics).

Posted by paul on April 14, 2012 at 10:54:19 from (66.44.132.109):

In Reply to: Questions about buried power to a new shed (Pics). posted by IHC Red on April 14, 2012 at 07:10:14:

John T & Buickanddeere always have good electrical advice so no need to repeat their info. But do study out what they say and why.

The 4 wires, and the exact way to ground everything is kinda important these days. It seems strange at first, but if you wire up the ground (bare or green) wire wrong, everything will work and appaer fine. Until someday you _need_ that ground wire. It's purpose it to provifde safety, in a perfect world that wire will never ever be used, it only comes into play to prevent fires, and electrocutions.

But, it needs to be wired right, to code, to work properly. And you don't find out if it's right or not just by turning the breaker on. So pay attention to the isolated ground straps, and such, that those guys mention. The details are important for 10 years from now when your kid or neighbor plugs something in and some wire breaks or shorts and _then_ you'll find out if you did it right or not.... The ground wire stays spererate all the time except at your main (probably house in your case) breaker where it is on the same ground as the nuetral wire. But that is the _only_time they should be bonded together, or you set up odd loops that can put floating current on all your grounded stuff.

You mention something about coming 5 feet out, and then down. That might catch the attention of the inspector, what are you coming 5 feet out on, how you handling that, what's the story? Horizontal exposed conduit laying on concrete doesn't sound right....

And, if you are bothering to dig this trench, and bothering to do the work and expense of wiring up the building, why not upgrade to at least a 50 amp service out there? The only extra expense is going to be the wire, at only 50 feet or less that is not much cost, and a bigger fuse in your box, same or a couple bucks extra. Five years from now when the lights dim every time you start your grinder and you can't buy the welder you wanted because it draws too much juice, you'll be kicking yourself every weekend you are there for skimping on the cost of a couple cases of beer. Think on that a little.

--->Paul

Replies:

• Re: Questions about buried power to a new shed (Pics). jm. 18:38:14 04/14/12 (0)
• Re: Questions about buried power to a new shed (Pics). IHC Red 12:46:46 04/14/12 (2)
  • Re: Questions about buried power to a new shed (Pics). buickanddeere 14:54:24 04/14/12 (0)
  • Re: Questions about buried power to a new shed (Pics). paul 13:58:47 04/14/12 (0)

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