[TowerTalk] Guy Wire Cable Clamps

[TexasRF--- via TowerTalk]

Hi Roger, serving guy wires is definitely an acquired skill! Reminds me of  
braiding a live horse's tail; few people would actually do it.
 
73,
Gerald K5GW
 
 
 
 
In a message dated 6/8/2015 12:10:42 P.M. Central Daylight Time,  
K8RI-on-TowerTalk at tm.net writes:

You can  make a serving tool from a 1" wide X 1/8th" thick, maybe 6" long 
with a  hole large enough to easily pass a single strand, (be sure to 
remove sharp  edges) but it's tedious work and may have a learning 
curve.  It works  well, but for lack of a better term is a royal PITA.

Serving might take  an explanation for many hams <:-))


73

Roger  (K8RI)



On 6/8/2015 12:36 PM, TexasRF--- via TowerTalk  wrote:
> Correct, and the specified Crosby clamps are the forged  type,  3/16CCF.
> More popular for ham use is the  3/16CCM,  which is a  malleable clamp 
having
> lower strength and much lower  cost. It has been a  very long time since 
hot
> dipped galvanized  malleable clamps have been readily  available. We only 
have
>  plated ones in stock and only for those that insist; we  do not  
recommend
> their use.
>   
> Conceptually one  could use more than three clamps to achieve greater
> strength. I have  never seen data for that though. Originally the Rohn
> recommendation  when cable clamps were used involved also serving the 
seven guy   wire
> strands for added strength. This is a really nasty job that few  hams 
would
> actually complete. Rohn even sold tool for that; CST which  was easily
> duplicated.
>   
> For many years the  Big Grip BG2142 and BG2144 have been the termination
> product of  choice. They install in a fraction of the time needed for 
cable
> clamps  and serving the cable ends. The grips are very price competitive 
with
>  the  CCF style clamps that were the prior choice.
>    
> I saw the note about using Chinese insulators with Big Grips. There  are
> some insulators available that are way too small to be used with  grips 
and I
> can  see that as a problem. The correct insulator is  model 502 from the 
most
> popular  insulator manufacturers. There  is a different part number for
> lesser known  manufacturers and I  don't know the numbers.
>   
> The only way I can see  that the proper insulator could damage a Big Grip 
is
>   if it  shattered under load or from flying debris in a storm. I 
personally
>  have  never seen or heard of that happening. To reiterate: with a  proper
> sized  insulator.
>   
> 73,
>  Gerald K5GW
> GM Texas Towers
>   
>    
>   
>   
>   
> In a  message dated 6/8/2015 10:56:40 A.M. Central Daylight Time,
>  towertalk at contesting.com writes:
>
>>   Does anyone  know of a vendor who stocks original  style  heavily
>  galvanised clamps similar or identical to the older  3/16CCM? Based  on
> what I paid
> in 1980 and on-line inflation   calculators, these should now run a  
little
> over $1.00   apiece.
>
> Well, I don't know if there ever sold for a   buck  but the industry
> standard for years has been Crosby  clamps.  Available in lots of  places.
>
>  Cheers,
> Steve     K7LXC
> TOWER TECH
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--  

73

Roger (K8RI)


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