[TowerTalk] Prime Directive - clamps etc
Tom Rauch
W8JI@contesting.com
Sun, 30 Jul 2000 07:44:06 -0400
> 2. I think my clamps LOOK the same relative to the "clamping radius".
> That is, the cup of the saddle is the same radius as the U bolt part - as
> they are brought slowly together, they eventually form a circle - not sure
> exactly how this circle compares to the rope diameter, and it's probably
> not a circle anymore when tightened down.
I don't follow you. Are you saying a U bolt has the same surface
contact area as a long saddle or only looking at it from one
perspective?
Maybe you are only looking at the clamp in-line with the guywire.
Look at the cross section, from a cut-away view. Like you would to
watch a pair of bolt cutters at work while standing at the handles.
The tighter the clamp, the harder the guy line, and the less the
number of strands the bigger the problem becomes.
The U-bolt, because it is round and a small diameter, has very little
contact area compared to the clamp saddle...which is reasonably
long and flat in the length-wise view. As a matter of fact the only
surface area the U-bolt has is due to deforming of the guyline and
the bolt, which tends to "kink" the cable.
73, Tom W8JI
w8ji@contesting.com
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