[TowerTalk] Grounding connection to tower legs

[Big Don]

Ground to pipe connector:
http://www.emerson.com/documents/automation/588898.pdf
Data sheet says it's NEC/CEC compliant "for ordinary locations"...

Don  N7EF

On Thu, Oct 12, 2017 at 8:01 PM, Paul Christensen <w9ac at arrl.net> wrote:

> Jeff,
>
> Not sure about your time line, but if you're not in a rush, you can often
> find surplus Harger pipe ground clamps on the web and the big auction site.
> New pricing is kinda' steep through Graybar and other industrial suppliers.
> However, they're excellent for this purpose as they have a 1/4-inch
> threaded
> SS bolt for attachment of a ground wire or hardline ground kit.  I am using
> a set of these at the top of 140 ft. and 100 ft. Pirod towers.  Each ground
> kit connects there while the lower tower base already has grounding plates
> to connect another set of hardline grounding kits.
>
> http://www.harger.com/library/brochures/CPC-Brochure.pdf
>
> NEC article 810 discusses tower and mast grounding and bonding.  810.21(K)
> states: "The grounding conductor must be securely fastened in place." Not
> very descriptive, is it?   I would only use a SS hose clamp as a temporary
> connection until I found the Harger clamps (or equivalent) at a reasonable
> price.
>
> Paul, W9AC
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of
> Jeff
> Sent: Thursday, October 12, 2017 10:09 PM
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Grounding connection to tower legs
>
> Another thought...  Think this clamp method would be acceptable under NEC?
>
> 73/jeff/ac0c
> www.ac0c.com
> alpha-charlie-zero-charlie
>
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