Re: pole pig question (fwd)

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---------- Forwarded message ----------
Date: Sun, 20 May 2007 20:02:57 -0400
From: David Speck <dave@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: pole pig question (fwd)

Jim,


Often, a typical pole pig has HV input to the primary terminal and an 
earth ground return connected to the case  which runs down the pole. 


The output is 240 VAC center tapped, with the center tap connected to 
earth ground at your breaker panel. 


That innocuous looking wire that runs down the pole into the ground (it 
often ends in a spiral coil stapled to the bottom end of the utility 
pole) plays a critical function.  A teenager around here was killed a 
few years ago when he scraped a utility pole with a lawn mower, breaking 
the down wire, and essentially running 14.4 KV into the mower deck.


Dave
> Hi Folks:
> Could someone please explain to me why 240volt residential pole pigs 
> have only 1 - primary conductor and 2 - secondary conductors?
> Thank You,
> Jim