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Re: grounding - this doesn't make sense - wire size
Subject: Re: grounding - this doesn't make sense - wire size
Date: Wed, 7 May 1997 10:09:35 -0400 (EDT)
From: Charles Brush <cfbrush-at-interport-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
>>
>>I read about the importance of a high current ground, and the use of
>>heavy
>>wire to connect to it. Yet the secondary wire isn't all that big. I'm
>>using
>>24 gague on a 4 inch secondary - if I remember right the largest wire
>>size on
>>a secondary I've read about on the list is 18 gague??? What I don't
>>understand is why the wire from the secondary to the ground rod (or
>>whatever)
>>needs to be more than one wire size (or 2) larger than the wire that the
>>secondary is wound with. IT would seem to me that current is limited by
>>melting the secondary wire. Can someone explain.
(I'm trying this with carriage returns to avoid the dreaded
choppy lines which have plagued this list for the last
several months.)
Someone please correct me if I am wrong, but essentially the
point of highest current (the true high current node of the 1/4 wave)
is not necessarily at the base of the coil, but rather down in the
ground system itself. The wire that the coil is wound with does not
carry the absolute maximum current developed by the coil, even at
the base. Thinking of it this way, the entire ground system becomes
an integral part of the coil, and the need for a heavy connection
becomes obvious.
Charles Brush
http://www.foundrygroup-dot-com/cbrush