Hi Don
In you described tower 127' Rohn 25-G , I assume you have 4 levels of
Guys three ways. I not a big fan of reusing hardware. even the Bigger
bodied CROSBY type clamps ( there the best made IMO ) The ROHN book on
served ends as described as ability to maintain cable integrity with the
clamps remover !!!
You said you have 18' segments.... I used 1/4 EHS and guy grips on my two
100' towers .. I broke the guys up as per ARRL Hand book and a graph by K1TD
I used the 39 ft and 58 ft lengths and I seem to remember a few 19' at the
bottom of the mid level guys ... These extra longer dim might make it
more attractive $ wise to use BIG grips and new EHS ?
Roger on the Doing it your self...
Wayne W3EA
> From: k4kyv@hotmail.com
> To: towertalk@contesting.com
> Date: Sat, 8 Mar 2014 20:44:27 +0000
> Subject: [TowerTalk] Re-use cable clamps?
>
> This spring I plan to re-guy my tower. The old guy wires, which have been in
> place since 1981, are getting rusty enough to make me nervous.
>
> The tower is 25G, 127' tall, base insulated and used as a 160m vertical and
> support for wire antenna. The guys are broken up every 18' to make them RF
> transparent through 40m. There are over 100 strain insulators in my guying
> system! The guy wire segments all have three cable clamps at each
> termination, plus the ends are served, per the Rohn manual.
>
> I can re-use the insulators with no problem, but I am wondering about
> re-using the clamps. They have some surface rust, but don't look nearly as
> deteriorated as the wire, which is 3/16 EHS. The threads on the u-bolts still
> look good, and I believe it would take many more years for the bolts or
> saddles to rust through enough to cause failure.
>
> Ordering new cable and re-using the old clamps and insulators would be a
> fraction of the expense of using Phillystran or terminating with Guy Grips.
> Since I am doing the work myself at my own leisure, the time involved for
> making up each guy wire using new or used clamps is not an issue.
>
> I'd also like to see some opinion on whether or not serving the dead ends
> following the cable clamps is really worth the trouble. None of the old
> clamps appear to have loosened up in over 30 years.
>
> It's worth noting that I almost lost an eye while assembling the original guy
> wires and serving the ends. It was a cold day, apparently enough to make the
> wire brittle, and one of the strands of EHS snapped while I was wrapping it
> and the 2" long piece hit me smack in the eye. Fortunately, since the broken
> shard was sharp as a needle, it hit sideways and not end-on. Needless to say,
> I wore my safety goggles from then on.
>
> I put the entire tower up myself in 1981, single-handedly, using nothing more
> than an old Signal Corps leather climbing belt, probably circa Korean War. I
> have since thrown the belt away, and recently purchased a top quality
> climbing harness and associated safety equipment. I wouldn't attempt to erect
> another tower from scratch at this stage of the game, but assembling guy
> wires on the ground and replacing them one level at a time is a much less
> ambitious project.
>
>
> Don k4kyv
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