[TowerTalk] Guy Tension adjustment

[K7LXC at aol.com]

In a message dated 6/27/2008 9:02:33 A.M. Pacific Daylight Time,  
towertalk-request at 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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