Tony:
I, too, can recommend Hoffman enclosures for your intended purpose. I
used them on my tower at home as well as on a project at work, albeit in steel.
Hoffman offers a wide selection of fiberglass enclosures and accessories such
as internal mounting panels. I bought mine from a local electrical distributor.
73 de
Gene Smar AD3F
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Jim Brown
Sent: Sunday, August 12, 2018 5:00 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Fiberglass Enclosure
Hoffman-style enclosures are widely available in the electrical supply chain in
a wide variety of sizes, styles, and materials. They can be found online, and
I found a particularly useful one at my local electrical supply store that I
used to house eight lightning arrestors. The one I chose came with a steel
backplate, to which I mounted the arrestors, and which I bonded to my ground
system.
FWIW -- for most applications of these enclosures, shielding is not required,
so the presence of steel is structural rather than electrical.
AND -- for shielding to WORK, it must be continuous, AND all penetrations of
the enclosure must be bonded to it at the point of penetration. The gap
presented by an insulating weatherproof gasket defeats shielding because it
interrupts the shielding and forms a slot antenna.
73, Jim K9YC
On 8/12/2018 1:04 PM, kstover@ac0h.net wrote:
> These are epoxy powder coated steel not fiberglass.
>
> http://www.kf7p.com/KF7P/JunctionsBoxes.html
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