[TowerTalk] Guy Anchor Failure

Eisinger Family eisinger@micron.net
Mon, 1 Jan 2001 18:02:43 -0700

No, I specifically mean poles or towers holding up power lines of various
sizes.  For wood pole lines (either transmission or distribution voltage
levels) structures are guyed at angle or dead end points. Particularly at
transmisson voltages where the spans are longer and the conductor tension is
higher, a wood pole is not very likely to survive a guy or anchor failure
(that's why they are guyed to begin with).  There are many major high
voltage transmission lines around the country where the structures are guyed
with screw anchors holding them in place.  A failure of the anchor would
indeed generally cause an outage of the line but this is a very rare
occurance.  Again, the type of screw anchors employed for these structures
are many times in diameter than the typical ones generally sold by Rohn or
others.  Imbedment depths of 20'-30' are not uncommen.

Bill, AA7X
----- Original Message -----
From: Bill Turner, W7TI <w7ti@jps.net>
To: Eisinger Family <eisinger@micron.net>
Cc: Jerry Keller <dxdog@rcn.com>; <towertalk@contesting.com>
Sent: Monday, January 01, 2001 5:48 PM
Subject: Re: [TowerTalk] Guy Anchor Failure

On Mon, 1 Jan 2001 17:18:09 -0700, Eisinger Family wrote:

>The electric
>utility industry routinely utilizes screw anchors for guyed structures of
>all kinds and sizes.

Do you mean structures other than utility poles?  Utility poles are somewhat
self-supporting anyway which might give some time if a screw anchor let go.
Just wondering if they use them for anything where failure means something
immediately comes down.

73, Bill W7TI

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