[TowerTalk] Which type of cable for a crank-up tower?

[Julio Peralta]

The problem with stainless steel cable is that in the same size as
galvanized cable it is not as strong and second if left bent in the same
position it tends to remember the curve around the sheaves  and the winch
drum. I guess in the case of an aluminum tower the weight of the sections
may not be heavy enough to cause the cable to take a set but certainly with
a heavy steel tower  it would be. 

Julio, W4HY

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of krishna
kanakasapapathi
Sent: Thursday, December 01, 2011 5:24 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Which type of cable for a crank-up tower?

For my Aluma tower, the company recommended the 7x19 stainless steel cable.
I have ordered the penetrating oil from champion radio to protect the cable.
Regardless, i plan to replace the cables every 3 or 4 years depending on the
condition.

For a salty air environment, wouldn't stainless steel be better?
73s
krish
w4vku

On 12/1/2011 5:00 PM, Dan Levin wrote:
> Of course, if I knew who made it I would just get the manual and do what
they say.  But I don't know who made it, so...
>
> I have an unidentified 65' crank-up tower, believed to be of English
origin.  It needs to be recabled.  The existing (original) cable appears to
be 5/16", but it might be 8mm or even 7mm (I am not where the tower is, so I
can't measure it exactly).  Definitely bigger than 1/4".  The tower lives in
a very salty, island climate.
>
> I am trying to figure out what type of cable to use - not which size, but
which material and construction.
>
> The easiest thing to find that seems appropriate is 5/16" 7x19 galvanized
steel.
>
> But, I have read that these towers usually use 6x19 LC (linen core) -
which I can find in plain steel, but not in galvanized.
>
> 1) Is galvanized the way to go in this situation?
>
> 2) Any sense of which construction is most appropriate?  I assume 7x19
would be best if I can't find the 6x19 LC.
>
> 3) Anyone have a source of 6x19 LC galvanized 5/16" cable?
>
>                       ***dan, K6IF
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