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temp. ground
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From: Bill Lemieux [SMTP:gomez-at-netherworld-dot-com]
Sent: Friday, March 20, 1998 11:48 AM
To: Tesla List
Subject: Re: temp. ground
Fox wrote:
> >would a fir hydrant or some other deep metal pipe be a good ground?
Then Jim wrote:
> Yes! But I'm ROTFLMAO with visions of the poor dog that tries
> to water that fire hydrant;)
A bit of warning. A hydrant can make an excellent ground (Greg Leyh is
using one for a safety ground on his 130kW coil, I believe).
HOWEVER: _if_ the fire department catches you doing _anything_ to one of
their precious fire hydrants, they will _not_ be amused. Thus speaks
the voice of experience.
In some cases, the hydrant flange is bolted to the riser slightly below
ground level. Using one of these bolts for the attachment of your
ground
sheeting (you _are_ using sheet copper aren't you? No point in having a
great ground and connecting it to your coil with 8ga. stranded wire).
Note that there is no pressure at this joint on most hydrants- the
actual
valve is down near the water main to prevent freezing. But I won't take
responsibility if you start a major water leak and get the fire dept.
called on you! Be careful!
cheers,
Gomez
--
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. personal email: gomez-at-netherworld-dot-com .
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