[BC] Long Wire

Steve Lewis steve at theengineeringbureau.com
Sat Feb 20 22:17:56 CST 2010


Send me a bunch of pictures of your tower (full height, close ups (if
possible) of the support structures, etc. and I'll post for the gang to
comment on.

-----O'rig Msgs-----

 From: Mike McCarthy

I don't see what reducing the wire size will do in reducing the load on
the side arms. When the wires load with ice and/or wind, the actual load
presented to the arms will be about equal to that of the heavier wire with
even a wire 1/2 the size.  Tension is tension.

If the support arms are bending, they are structurally compromised and
need to be replaced with arms more suitable for the application.

I procured hot-dipped springs used in farm field fences at the local farm
store. Good for 400lbs of tension when set correctly. PLENTY for a short
skirt using 1/4" wire.  Between the springs, strain insulators procured
for the base, eyelets, and shackles, everything was done "off the shelf".
> Steve,
>    The engineer that installed the unipole didn't do it right. He didn't
> do  alot of things right. The wire he used was too big, it's pulling on
> the top cross arms and the bottom crossarms. The wires need to be the
> right size. I'm going to send you a .zip file (pictures) of that was
> done at the bottom ring. I'm not happy with the work he did!



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