Re: A voltage to ground mystery.
From: John Fields (jfields_at_austininstruments.com)
Date: 03/28/05
- Next message: Larry Brasfield: "Re: A voltage to ground mystery."
- Previous message: Glenn Ashmore: "A voltage to ground mystery."
- In reply to: Glenn Ashmore: "A voltage to ground mystery."
- Next in thread: Larry Brasfield: "Re: A voltage to ground mystery."
- Reply: Larry Brasfield: "Re: A voltage to ground mystery."
- Messages sorted by: [ date ] [ thread ]
Date: Mon, 28 Mar 2005 09:22:05 -0600
On Mon, 28 Mar 2005 09:42:21 -0500, "Glenn Ashmore" <gashmore@cox.net>
wrote:
>This is more of an electricity question than electronic but: We just
>finished running water and power to a new construction site. Water is in a
>copper pipe run about 1,000' through the woods burried about 2' deep that
>just ends in a 2' vertical piece with a faucet on top. Power runs parallel
>to the pipe about 100' away to a transformer on a pole at the construction
>end.
>
>The mystery is that there is a 25-30VAC difference between the faucet and
>the mud puddle below it. Touch the faucet without wearing rubber boots and
>you get shocked! I can see how a current might be induced into the pipe as
>it runs along the power line but how can there be a potential between the
>ends of a 24" copper pipe???
--- There isn't, there's a differential between the secondary of a transformer (the 1000 feet of pipe) running in parallel with the primary of the transformer (the power line) and the puddle. -- John Fields
- Next message: Larry Brasfield: "Re: A voltage to ground mystery."
- Previous message: Glenn Ashmore: "A voltage to ground mystery."
- In reply to: Glenn Ashmore: "A voltage to ground mystery."
- Next in thread: Larry Brasfield: "Re: A voltage to ground mystery."
- Reply: Larry Brasfield: "Re: A voltage to ground mystery."
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
|
