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From: dkukral@encad.Wichita.NCR.COM (Dean Kukral)
Newsgroups: sci.electronics
Subject: grounding by pipe (was ... true ground?)
Keywords: ground, pipe, electrocution
Message-ID: <741@encad.Wichita.NCR.COM>
Date: 21 Jul 89 12:50:16 GMT
Distribution: usa
Organization: NCR Corporation Wichita, KS
Lines: 9

It seems that using pipes as grounding vehicles is fairly common.  Is
this dangerous to plumbers?  I mean, if there is a short to ground while
a plumber is working on pipes, couldn't he/she get zapped pretty badly?
Is this an unlikely event?  Does anyone know of it ever happening?

Related: if you generate electricity via a windmill or other generator,
you must have a way of disconnecting from the grid feed.  In case a
utility workman were working on the lines (which he thought were safe)
he could get zapped by your generator.