On Wed, 06 Nov 1996 16:55:19 -0800, you wrote:
>I've tried to research the below and I believe the answers you
>received regarding ANSII and IEEE specs are probably the best.
>All my documents require #2AWG or larger for tower grounding
>conductors, but I find no mention of any regulations requiring it.
>The only real hard requirement seems to be for a .01 ohm ground.
>(You'd need a "Megger" to read the resistance) de KL7HF
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Actually, you can measure the resistance with ordinary test equipment.
Connect a low-voltage power supply to pass about 1 amp through the joint =
to be
tested (use a resistor to limit the current to 1 amp). Measure the =
voltage
drop across the joint and a quick Ohm's law calculation will give you the
resistance. For example, if the current is 1 amp and the measured =
voltage is
.01 volts, the resistance is .01 ohms. Works like a charm. =20
73, Bill W7TI (ex-W7LZP)
wrt@eskimo.com
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