static and corona do not make 'metal glob's. at worst the corona will
create ozone which can cause accelerated rusting or corrosion/pitting of
metals. globs are formed by heat, as in lightning strikes.
> Here in Louisiana, N5AN, N5MEG, and NG5X all have them on their towers and
> swear by them, 100%. Roy says that he was hit over 10 times prior to
> installing them (highest structure, manmade or natural) for some distance
> and hasn't taken a strike since. Scott N5MEG worked for a tower company
> swears by them. He's installed his at the top most part of the tower,
> letting the mast pipe stick up way above the yagi. He then runs heavy
> "welding wire" all the way to ground from them. Says he hasn't taken a
> strike since. He also noted SEVERE damage to them after a good period of
> time being up. Not from a direct hit, but from the constant dissipation
> the charges. Each finger in the ball was rounded at the end with a metal
> glob of itself. Sounds to me like there's a good bit of static coming
> Message: 6
> Date: Tue, 27 Jul 2004 18:46:50 -0600
> From: "Grillo's" <firstname.lastname@example.org>
> Subject: [CQ-Contest] spider balls
> To: "Towertalk Reflector" <email@example.com>
> Cc: CQ Contest <firstname.lastname@example.org>
> Message-ID: <007401c4743c$5e863510$0a01a8c0@OFFICEPC>
> Content-Type: text/plain; charset="iso-8859-1"
> Since we are on the subject of lightning, has anyone ever used "spider
> balls" to dissipate energy thereby eliminating strikes on the structure?
> These are a steel rod with over 200 fine spiked elements about 2 ft. long
> each that create a cluster of very sharp spikes.
> Can you visualize this? I have three spider balls and am considering
> installing one each about 40 feet up from the guy anchors on the steel
> that would be connected to the anchor rods. The balance of the guy lines
> to the top of the 120' tower are polyphaser cable, so are insulated. I
> would install three copper ground grids at each guy point and link them
> together with underground copper cable.
> The other thought is to mount them on top of the 120' tower and put one
> ground grid under the tower.
> I'm looking for alternatives before the concrete gets poured in 2
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