[South Florida DX Association] Re: [FCG] My saga with my tower -- seeking advice from the group

Tue, 7 Oct 2003 10:09:51 -0400

Re NEC 810-15
Grounding.  Masts and metal structures supporting antennas shall be grounded
in accordance with section 810-21

Re NEC 810-20
Antenna Discharge Units
Basically says that antenna conductors must have "antenna discharge units"
(surge suppressors) between the antenna and the receiving facility.
A number of companies make these and are available I believe from AES
and I'm sure other people.

Re NEC 810-21  Grounding Conductors
Basically it speaks of the conductors that are required, copper, aluminum,
copper-clad steel, bronze or similar corrosion-resistant material.
Insulation on grounding conductors shall not be required.  These conductors
shall be connected to grounded electrodes (ground rods).
Oh the size shall not be smaller than No. 10 copper or No. 8 aluminum or
or No. 17 copper-clad steel or bronze.

These requirements are all very reasonable and if you follow the basic
installation practices outlined in the hand book you should be ok.
PolyPhaser sells a good book on grounding and is available from them.  They
have a distributor in Melbourne Fl.  Technical Equipment Dist.
800-729-8334.  They also have all kinds of surge protectors.
If I can be of any help I can also be reached at (352) 860-2385
Good luck and hope the above gives you some kind of a feel for what they are
looking for as the sections in question are a lot more comprehensive.
73 Pete N4KW

----- Original Message -----
From: "Esteban Romagni" <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Monday, October 06, 2003 12:07 PM
Subject: [FCG] My saga with my tower -- seeking advice from the group

> Hello all,
> well, my tower structure is approve 1/2 way, the structural part no
problem
> there, but the electrical people at the city of Sunrise want more info
> before approving the permit.. they want me to show that grounding will
> comply with NEC 810-15, 810-20 and 810-21.
>
> anyone in the club's) is a electrical engineer that maybe can guide me
here?
> this is the only step that is holding my permit...
>
> after all this, I will sure write a book...
>
> any advice is welcome...
>
> Steve
> W4DTA/YV5DTA
>
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