Steve we agree with each other , Per the spec table sent to Gary:
1/4 ehs at 60F = 670# and at 80F = 560# so 70F ~= 615 #
73 Bill N1HWC
On Fri, Jun 27, 2008 at 7:33 PM, <K7LXC@aol.com> wrote:
> In a message dated 6/27/2008 9:02:33 A.M. Pacific Daylight Time,
> towertalk-request@contesting.com writes:
>
> > here are the adjuments
>
> Guy
> Cable
> Diameter 0? F 20? F 40? F 60? F 80? F 100? F 120? F Ambient
> Temperature
>
> 3/16 590 520 460 400 340 280 220 Guy Cable Initial Tension (lb)
> 1/4 980 870 770 670 560 460 360 Guy Cable Initial Tension (lb)
> 5/16 1650 1470 1300 1120 950 780 610 Guy Cable Initial
> Tension (lb)
>
> Okay. I'll bite that these are reasonable figures for INITIAL tension -
> not final tension. Initial tension gives you enough tension to plumb the
> tower and have enough tension to work on the tower.
>
> The correct tension for EHS final tension is 10% of the ultimate
> breaking strength @ 70 degrees F. For 3/16" it's 390#. For 1/4" it's 600#.
>
> Cheers,
> Steve K7LXC
> TOWER TECH -
> Professional tower services for hams
>
>
>
>
>
> ------------------------------
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>
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