[TowerTalk] Nicopress sleeves

[Kurt Andress]

Here's a reprint of a TT post made by John, W0UN, in Dec '98

----Reprint--------

SNIP previous discussion about cable clamps on Phillystran.

Similar to using "nicopress" fittings in non-standard applications.
A single nicopress will hold aircraft cable--but when using
them on 1x7 EHS you need THREE to guarantee that the cable
will fail before the clamps.  (Two usually is enough, but not always--
to be SURE of making the termination stronger than the cable you
need three----based on tests I had the nicopress people run about
20 years ago when I asked them about 1x7 and they decided to
find out for sure by breaking some cables for me.)

------End -----------

-- 
73, Kurt, K7NV 



K7LXC@aol.com wrote:
> 
> Greetings, TowerTalkians --
> 
>       Chet Pierson (don't have his call) researched the Niccopress swages and
> sent me the following info:
> 
> >> Here is what I found so far on sleeves:
> 
> 1) The strength of the sleeve is not an issue. They are designed to
>      exceed the ultimate load of the cable size they are designed to fit,
>      if applied properly, and gauged after each crimp. (the mfg. suggest
>      a pull test if there is any question)
> 
> 2) The different sleeve metals are for compatability with different cable
>      base metal.
>      Plain uncoated Steel=Aluminum or Copper
>      Galvanized=Zinc Plated Copper
>      Stainless Steel=Tin Plated Copper
> 
> So, for long life, with my Galvanized cable, I need Zinc Plated copper
> sleeves. (properly crimped, of course)
> 
> Also, I drilled the holes in my tower base, and I'm ready to epoxy
> the B7 threaded rod into the slab!!! >>
> 
>        Nicopress swages are a good, albeit one-time, guy termination that
> look clean and are easy to put on.
> 
> Cheers,   Steve     K7LXC
> Tower Tech

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