[TowerTalk] TowerTalk Digest, Vol 81, Issue 32

Steve Maki lists at oakcom.org
Tue Sep 15 17:08:23 PDT 2009


Look at it this way: the deflection reading on the Loos gauge due to 
stiffness is a constant, totally independent of tension. With no 
tension, 100% of the deflection is due to stiffness. As the tension 
increases, more and more of the deflection is due to tension, until you 
reach a point where the contribution from stiffness is swamped out.

How can it be any other way?

Steve K8LX

Dick Green WC1M wrote:

> Others have done this test. My recollection is that W8JI disputes Steve's
> assertion that the guy material becomes more "rod-like" as more tension is
> applied, thus eliminating or smoothing out the differences in bending
> potential of different materials. I agree with Tom. The Loos gauge is
> clearly designed to mention the degree of cable bending, so it seems quite
> reasonable that the type of material matters a lot, and that this doesn't
> magically fade away as tension is applied. The gauge is calibrated for
> stainless-steel wire rope, which is considerably softer than EHS, so it
> seems reasonable to expect more than 2% difference.



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