[TowerTalk] Pulling coax through PVC pipe

[Patrick Greenlee]

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 at 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 at contesting.com> on behalf of W0MU Mike
>> Fatchett <w0mu at w0mu.com>
>> Sent: Sunday, January 28, 2018 2:33 PM
>> To: towertalk at 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 at 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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