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Old November 28th 03, 11:18 PM
Dave Platt
 
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Nope. The two ground points could very well have tens to hundreds of
ohms of soil resistance between them. For purposes of electrical
safety, bond 'em together!


They are bonded together by earth ground.


The National Electric Code says otherwise. Earth ground is *not*
considered adequate bonding for the purposes of electrical safety.

The antenna is not going to
carry any AC load if your station is grounded. Who knows maybe a 747
will clip the guys antenna at the same time as lightening hits the 747
knocking the ground wire from the antenna and creating a huge fireball
above his house.


The whole purpose of proper electrical *safety* grounding is to ensure
that when things go wrong (short circuits, open neutrals, etc.), they
go as *little* wrong as possible.

Failing to bond ground rods together would be one of those things
which would make no difference *normally* (in the absense of faults in
the building wiring). If a wiring fault, short circuit, etc. were to
occur, proper ground-rod bonding could make the difference between a
tripped circuit breaker (if you're run a heavy-gauge bonding wire),
and a burned-down building (if you didn't bond 'em, and the current
flow through the soil wasn't enough to trip the breaker).

The bonding rule is there for a very good reason... safety.

As a very practical matter: if you fail to follow the Electrical Code
(or your own local rules, if different), then your home may fail
inspection if you try to sell it, and (if a fire occurs) your
insurance company may refuse to pay your claims if they find a
not-to-code electrical installation/modification.

Bonding the grounds together will cost maybe $10 worth of wire. It's
cheap insurance.

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!
 
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