In a message dated 8/1/02 8:22:32 PM Pacific Daylight Time, k3bz@arrl.net
writes:
> I'll soon be pouring a new tower base, 6 feet deep. I thought I would put an
> 8-foot ground rod at each corner of the hole, drive them in the remaining 2
> feet, tie them all together with #2 solid copper, and run the copper to all
> 3 of the tower mount J-bolts...then pour concrete around the whole
> business... any thoughts?
Most grounding specs call for 2 or even 3 rods per run from the tower
leg. You want to have a hub (the tower) and spokes (the ground wire/rods)
arrangement.
The trick is connecting the wire to the rod. There are only 2 methods
that are approved by the NEC; compression and exothermic (i.e. CadWeld, etc.).
Grounding the tower is only a PART of the system - you still need to deal
with cables down the tower and the all-important building entry.
Cheers,
Steve K7LXC
TOWER TECH -
Professional tower services for commercial and amateur
|