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[TowerTalk] Guy tension

To: <>
Subject: [TowerTalk] Guy tension
From: (Dave Hachadorian)
Date: Sun, 1 Apr 2001 08:41:03 +0000

On Sat, 31 Mar 2001 07:17:01 -0500 "David J. Windisch"
<> writes:

> There is a definite repeatable correlation between cable tension due 
> to
> vertical deadweight and torque-wrench readings (on several different
> wrenches with differing ranges), using a simple fixture with cable 
> contact
> points (grade-8 bolts) a foot apart, and a hole for the wrench 
> tongue midway
> between the contact points.

You left something out here. You can't just look at the torque-wrench
reading. The harder you pull, the higher the reading. You have to look
at how much deflection you get on the fixture.

Do you mean that you apply a certain amount
of torque, and measure how far the fixture, or the bar of the wrench
deflects, and then apply a correlation factor determined experimentally
to arrive at the cable tension? If so, you have just reinvented the Loos
Tension Gauge! If you just buy the gauge, you can skip all the
work with the dead weights.

Dave Hachadorian, K6LL
Yuma, AZ

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