[TowerTalk] Guy Wire Cable Clamps

[Roger (K8RI) on TT]

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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