[TowerTalk] grounding radials: solid or stranded?

[Gary Schafer]

Copper pipe is more expensive. It is also difficult to connect sections 
of solid pipe together.

73
Gary  K4FMX

Martin AA6E wrote:
> My sources say that 1/2" copper pipe/tube with .032" wall weighs 0.18
> lb/ft, which is what the lightning guys say you need FWIW.
> 
> Common soft copper tubing @ 1/2" seems doable.  Soft copper tubing is
> available up to 2" or more, but it's probably too expensive and
> difficult to work with.  3" strap would be cheaper, easier, and more
> effective, I expect.
> 
> 73, Martin AA6E
> 
> --- Pete Smith <n4zr at contesting.com> wrote:
> 
>>An interesting thought - what about 3/4" copper plumbing tubing as a
>>ground 
>>conductor?  I suppose if it took a lightning hit, and even if you 
>>silver-soldered any joints, you would still blow out the solder, but
>>if you 
>>could get it in a coil....
>>
>>At 09:18 AM 3/14/2005, Tom Rauch wrote:
>>
>>>I can't think of a reason it wouldn't apply to lightning,
>>>although smooth wide flashing has less inductance than a
>>>narrow round conductor. I would use a wide flashing first,
>>>and then a round conductor (hollow or solid) second. Braided
>>>or finely stranded or woven strands would be way down the
>>>list.
>>
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> 
> _______________________________________________
> 
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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