[TowerTalk] Perim. Gnd. Question

[Rob Atkinson, K5UJ]

Hi all:

I'm thinking about a perimeter ground to tie all my rods together and did a 
bit of reading in the tower talk archives.  I learned two things:  run a 1.5 
inch wide copper strap and bury it below the freeze line.  Around here I'll 
have to go down 5 feet according to my city water service.  The strap will 
have to cross a buried gas line and a buried a.c. line going from my house 
to my garage.  I still have to call the gas company to find exactly where 
the gas line is and how deep it is.  The a.c. line is about 3 feet below 
grade.  The strap will cross them at right angles to them.  My question is 
how much clearance should I give to the gas pipe, assuming it's not way way 
deep, and power line?  The buried a.c. to the garage is 115 v. for a few 
outlets and overhead light.  Judging by the old switches and juction boxes 
in use I'd say the line has been there at least 40 years.  I don't know for 
sure if it is in a conduit or not until I excavate and see it but what I see 
at the ends makes me think it is.  Thanks es 73,

Rob
K5UJ

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