You might want to consider running the 12VDC through the coax if the
current is not too much.
Patrick NJ5G
On 1/28/2018 6:23 PM, Dave Sublette wrote:
Thanks everyone, I think I have enough info now. The voltage on the 14-2
is strictly 12V, low current DC for running relays to switch phase on my
four square array.
Dave
On Sun, Jan 28, 2018 at 3:16 PM, Wayne Kline <w3ea@hotmail.com> wrote:
I have access to a green lee cable tug'er ... ( capstan winch )
but any SLOW pulling method will work , I use a liberal amount of Ideal
31-378 Aqua-Gel II Pulling Lubricant . Get help at each end and go slow...
YMMV
Wayne W3EA
________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of W0MU Mike
Fatchett <w0mu@w0mu.com>
Sent: Sunday, January 28, 2018 2:33 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Pulling coax through PVC pipe
Go slow especially if you are pulling smaller control lines you can burn
the jacket or worse if there are bends, edges etc. Having someone feed
the cable in would be nice too.
On 1/28/2018 11:21 AM, Mickey Baker wrote:
Pulling House AC power through conduit likely subjects you to code
requirements, like burial of at least 18 inches. If this is not “house
power” you should be good.
If your are CERTAIN that the conduit is intact, just tie the new cable on
to the end of the old with some sturdy cord or mule tape appropriately
knotted, wrap it securely with electrical tape, at least a foot on the
old
and the new, squirt a good gob of lube in before this “capsule” and pull
away. For a straight run, you’re not likely to need mechanical help.
Position someone at the feed end to alert you of kinks or other problems
and pull away!
73,
Mickey N4MB
On Sun, Jan 28, 2018 at 11:45 AM Dave Sublette <k4to.dave@gmail.com>
wrote:
Good morning,
28 years ago I buried a 1.5 inch schedule 40 PVC pipe in the ground and
ran some low loss coax and a three wire electrical control cable (14-2
house wiring cable). The 14-2 is used to operate a remotely control
phasing box for my 80 meter four square. The coax feeds either my 160
vertical or the 80M array.
Well it’s time to replace the coax. The PVC pipe is 250 feet long and
in
a straight line(thankfully). I suspect I will have to pull both cables
with the new cables tied to the end. I’ve never done this before and
could
use a little advice. I googled but most of what I found started with
empty
pipe and ran a “string mouse” through with a shopvac. When I installed
the
cables initially, I laid them out on the ground and slipped the pipe
over
them ten feet at a time. Fortunately, there is a fair amount of room
left
in the pipe. The two cables did not fill up the space entirely.
My first question is if there is some sort of lubricant I should use to
reduce friction?
That’s also my last question, but I know there must be several things to
consider I am betting that this group has the answers. I have a
come-along,
a tractor, and a fair amount of tools. I’m just not sure how to
proceed.
I am eager to see what you all have to say.
Thanks.
Dave, K4TO
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