What happened to the Single point ground in the previous thread?
Also, induced voltages , which are the most common form of damage
creators was ignored. Far more damage is done by voltage induced into
wiring from nearby strikes than direct strikes. Yes on a strike by
strike basis the direct hit wins, but there are far more nearby strikes
than direct hits.
The house and shop have separate feeds from the power company, meters,
grounds and panels. "HOWEVER" these feeds come from the same pole
transformer. Ground through their neutral is well over 200 feet from
shop, to pole, to house with ground rods at the shop, pole, and house
NOW, it gets sticky.
I have stations in the house and shop. Both stations (SO2R) use the same
antenna system of multiple HF, and VHF antennas. There are also 3 runs
of CAT5 between the house and shop. Currently there is one tower and
two masts with a second tower to be added soon. The antennas have a
large and elaborate ground system, making impossible to separate the
grounds for the shop and house. There is a SPG panel at the coax
entrance to each building although the one into the shop isn't finished.
As I've said a number of times, the system ground is a network
consisting of 32, or 33 8' ground rods, CadWelded to over 600 feet of
bare #2 Copper.
How do I ground all of this safely from a lightening, power company and
my safety while not risking any equipment?
As I understand lightening is basically a rounded off square wave with
each hit consisting of multiple strokes of varying intensity and
frequencies. Each strokes contains a broad spectrum of RF which because
of differing rise and fall times as well as inductance and capacitance,
has its shape changed with distance and method of conduction. In any
dwelling the arrival of the induced voltages should be well ahead of the
conducted voltages In the small time frame we are looking at.
The only problems I've had are/were from that cat5/6 network.
73
Roger (K8RI)
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73
Roger (K8RI)
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