[TowerTalk] Re: Ground Rods & Ohms
Joe E. Mesh
jm@drsmesh.com
Wed, 16 Apr 1997 22:16:08 -0400 (EDT)
>> I was hit by
lightning - a direct hit on the tower - the following resulted: <<
Me too! It woke us up out of bed in a hurry! Loudest thing that I
have ever heard!
I have extensive grounding and a total of 20 eight foot rods (to date)
all exothermically soldered to 3 inch copper or 00 stranded depending on
the application. The shack has a ground halo and entry through a
Microflect bulkhead behind which solid copper 2X1/4" bars rest as
mounting plates for the Polyphasers on each transmission line. Lines
all go to a patch panel for quick disconnect and easy switching.
Everything was hooked up! I had disconnected nothing. I had no idea
about the storm.
Damage report:
2 garage door receivers fried. I repaired them with new MOVs and new
front end transistors.
A drive sensor fried. MOVs only problem.
A video camera modulator fried. Hopeless.... ( it was outside of the
halo.
Switching circuit for a 4-square fried. MOVs. (I hope that is all --
it is too muddy to get out there yet!)
Entry logic fried. Some Cmos devices were replaced to fix.
2-way X-10 sender/receiver fried. Hopeless....
Pole mounted transformer (from the grid) blew it's drop fuse. New fuse
on a pogo stick fixed it. (Edison did it not me!)
BUT.... All the radios and everything in the shack is just fine!!!!
Computers, modems the whole thing is fine....
W8SS....
--
Thanks....Joe E. Mesh, D.M.D.,C.A.G.S.(Prosthodontics)
from Beautiful Downtown HELL, Michigan USA
04/16/97 22:09
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