[TowerTalk] Guy tension for Polygon guy rod?

[K7LXC at aol.com]

In a message dated 5/4/2007 9:02:58 A.M. Pacific Daylight Time,  
towertalk-request at contesting.com writes:

>  I am trying to check the tension on my 100ft tower, which  uses 3/8" 
Polygon guy rod (guyed out at 100 ft).  There is 5/16" EHS  for the 
last 15 feet or so.

>  I can easily use the Loos  gauge to measure the tension, but I do not 
know what the correct tension  should be for Polygon guy rod.  I 
believe I should be at 10% breaking  strength, but I don't know what 
that is off-hand.  Probably this has  been discussed before, but I 
can't find it.


    Well, by definition whatever the measurable EHS  tension is is what the 
Polygon tension is. What is the Ultimate Breaking  Stength (UBS) of the Polygon?
 
    While 5/16" guys are a little overkill for your  hundred-footer, I'd guy 
the tower to the 5/16" spec. UBS for 5/16" EHS is  11,200 pounds so your guy 
tension should be 1100 pounds. This is assuming of  course that it's a match to 
the Polygon rod. If it's not, then I'd use the  Polygon spec for the tension. 
 
Cheers,
Steve     K7LXC
TOWER TECH -
Professional tower services for hams
Cell: 206-890-4188








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