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@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@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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