On 6/18/18 6:39 PM, Glenn Little WB4UIV wrote:
To do the grounding correctly, all connections exterior to the building
are to be welded.
The cable to ground rod welds are to be 18 inches below grade.
The exterior cable is to be number 2 copper or larger.
To bond numerous ground systems together, a number 2 copper cable is to
be buried at 18 inches and welded to each ground system.
If using eight foot ground rods, a ground rod is to be driven every 16
feet along the connecting cable and the cable welded to the rod.
It helps to know *why* some requirements exist - I suspect the 18"
burial requirement is to avoid accidentally digging it up or damaging
it. I can't think of an electrical reason for it.
A lot of work, but, cheaper, in the long run, than continuing to
repair/replace equipment.
It depends
Unless you're doing geodetic or precision timing work with a 2 or 3 band
GPS, replacement GPS antennas are cheap.
I'd worry about the receiver and related equipment, but the antenna
itself might be sacrificial.
As always, there's a risk/budget tradeoff
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