Topband: Lightning protection

[HAROLD SMITH JR]

A low impedance tower ground is important. Google TOWER FOOTING RESISTANCE
for an IEEE ppt. on this. I would aim for a couple of ohms. That means
several long rods.

Dave WX7G



Dave,

Of course a low impedance ground is important. 

I have a ground field with 6 - 10ft 3/4 inch schedule 80 copper tubing. They are 
buried with the tops about 12 inches below the surface. The 

ground rods are all connected with 1 1/2 inch copper strap and to the ground 
plane in the arrestor box. The ground plane 

that the arrestors are mounted is 12 X 18 X 1/4 inch copper plate. There are NO 
soldered connections. Only thermo-welded or screwed 

together. There is "NO-OX" in the screw connections. 
For safety reasons, the tops of the ground rods MUST be below ground, Electrical 
Code in St. Louis County.

Price W0RI