[TowerTalk] Temperature compensation
nf4l_NO_SPAM at nf4l.com
Tue Jul 21 08:00:05 PDT 2009
Thanks Steve -
That works. The tension is displayed as a decimal fraction. .37 would be
370 lbs., right?
Steve Maki wrote:
> ****file attached****
> I attached the version I have that works with Excel 2000. Give it a try.
> Anchor radius is the distance between the anchor and the tower. If you
> have only one set of anchors (IOW three all together), put the radius
> (let's say 60) in any of the radius fields - let's say you use "inner".
> Put the target temperature in the Average Temperature cell.
> Then in the Guy Wire Info section put Guy Wire Level (height), and use
> the drop down lists for Anchor and guy size.
> That should do it...
> Steve K8LX
> Mike wrote:
>> Thanks Steve - Is the spreadsheet at
>> http://www.editgrid.com/user/charlietfl/Guy_Pulse_Calculator the one
>> you're talking about? If so, what is the Anchor Radius? I'm trying
>> to use it online because downloading it gives me a really messed up
>> sheet. Maybe incompatible with my version of Excel. The instructions
>> are probably OK for someone who knows all the terms and math, but I'm
>> struggling a bit. All I get in the tension cells is #N/A. I was
>> planning on using a Loos gauge. 73, Mike
>> Steve Maki wrote:
>>> The compensation varies depending on the guy length, but at lower
>>> temperatures you want more tension, and at higher temperatures you
>>> want less.
>>> Do a Google search on "guy pulse tension calculator". You will find
>>> a handy spreadsheet that is mainly designed to calculate pulse
>>> times for use in the pulse method of measuring guy tensions. It can
>>> be found for download, and there is an online fillable site. The
>>> spreadsheet will give you the information you need after inputing
>>> temperature, guy size, anchor distance, and guy height.
>>> BTW the pulse method is a very good method of tension measurement
>>> IF you are using continuous strands of EHS (not broken up with
>>> Steve K8LX
>>> Mike wrote:
>>>> Rohn specs call for 400 lbs. of guy tension at 60 degrees F.
>>>> Anybody know how to adjust that for different temperatures?
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