[TowerTalk] Rohn Guy Attachment

[Stan or Patricia Griffiths]

Tom Rauch wrote:

> Stan Wrote:
>
> > One interesting thing about this drawing is that the cable
> > wrapped around the tower leg does not look like EHS since it
> > conforms quite nicely to the contours of the leg bracing.
> > It looks more like wire rope or "aircraft cable".  It is
> > nicely clamped with three cable clamps and "served".  (I
> > can't imagine how you can "serve" aircraft cable . . . ! !)
> > Well, it's a drawing and not a photograph so I think the
> > draftsman took some liberties and used his imagination.  I
> > do know this:  it would be a waste of my time to try to get
> > an explantion of any of this from Rohn . . .
> >
> > You want a copy of this drawing?  SASE to:
> >
>
> I made the original comment. If you read my post, you will see I
> was specifically talking about guy-grips, and secondly talking
> about EHS in general terms.
>
> All the instructions that have arrived with the guy grips I've
> purchased, and the data for EHS seven strand has clearly warned
> to not put the strand or EHS over small radius surfaces.
>
> That's specifically why, whenever we have a shackle or clevis, we
> are supposed to use a thimble to provide a large radius surface.
>
> I don't care what Rohn, or anyone else, shows in an old drawing. I
> do pay attention to what the manufacturer of the item I'm using
> specifically warns against doing.

Well, it is apparent to me that MANY people on this reflector DO care
what Rohn says and for good reason, I would say.  Rohn has a LOT to lose
by people installing their towers unsafely.  I think the reason you
can't get many straight answers from Rohn is that they are legally
responsible for anything they say, whether in person, by phone, email,
or through printed catalogs.  It appears to me they have decided "the
less said, the better".  You CAN get them to commit to technical answers
to questions not covered in their catalogs, but the price is high.  They
have to pay their liability insurance premiums and their legal staff.

> You can use kinked EHS strand if you like, but not me! Putting
> nearly the same stress on the cable as reversing a saddle does
> isn't a good idea in my book, especially since I've seen towers fall
> from guy failure in both cases.

I'm with you on this one, Tom.  Kinked EHS is really a bad idea.  If you
want to see why, all you have to do is draw a hacksaw blade over a
single strand of EHS making only a small dent in the surface and then
bend it.  It snaps REAL EASY.  Sharp bends or anything that raises the
stress in one area on EHS is bad news.

> 73, Tom W8JI
> w8ji@contesting.com

Stan  w7ni@teleport.com



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