[TowerTalk] Guying free-standing towers: the initial post

[Jim Forsyth]

You don't remember correctly and that was not his question.

Just to inject some truth, the question was "whether the bottom set of steel
guys need to be broken up "


----- Original Message -----
From: "Jim Jarvis" <jimjarvis at comcast.net>
To: <towertalk at contesting.com>
Sent: Monday, April 11, 2005 5:54 AM
Subject: [TowerTalk] Guying free-standing towers: the initial post


>
> If I remember correctly, this started with a question
> from a chap who is putting up a self-supporter which
> is too close to a power line.  He asked if there were
> any problems with a safety guy.
>
> There was ONE direct answer...keep it loose and you'll
> be fine.  Then the thread took on a life of its own.
>
> Let's be clear, however:  Tensioned guys add load to a tower.
> Therefore, the tower will reach its material failure point
> sooner.  Might be 5%, might be 50%, depending on how much
> you stress it, and where.  Answering the implied questions
> requires careful structural analysis, not debate.
>
> The function of the guys, is NOT to add strength to the
> system.  The function is to force a different failure mode,
> and the price of doing that will be reduced load rating, or
> earlier failure, if loaded to original specification.
>
> There was one OTHER useful observation:  make
> certain you have it well grounded, and hope for the best.
>
> As for me, I would strongly encourage locating the tower
> further (safely) away from the power line, and following
> the manufacturer's installation instructions.
>
> n2ea
> jimjarvis at ieee.org
>
> _______________________________________________
>
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>
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