[TowerTalk] Pull rope in PVC

[Mike]

Hello,

Second what Mike state in his response.

I've found, from hind sight as Mike said, the best method is to get as many 
cables through the PVC with the initial "pull".  Also, remember to attach a 
"traveller" to the front of the cables to allow the pull rope to be 
retrieved through the pipe.  Keep the cables and the traveller line going 
into the pipe as parallel as possible.  You want to keep the traveller from 
wrapping around the cables.  Getting the traveller and the cables to stay 
parallel with each other may be impossible, but try to minimize the 
traveller line getting wraped around the cables.

The large PVC pipe will make the next pull of cable(s) much easier even if 
the traveller line does get wrapped around the initial set of cables.

A four inch PVC pipe is run from the house to the base of the tower (~60 
ft) at K4GMH.  Using the above technique three "pulls" were used to get two 
FSJ-4 coax cables, and control cables made of out of 14 gauge NM for the 
following:  two stack match pluses (six wires each),  two antenna selection 
switches (four wires each), two rotators (six wires each); plus the two, 
sixteen wire control cables for two, 4 element SteppIRs.  The majority of 
the cables came through the pipe during the initial pull.  The two other 
pulls were made without any problem.  By using a traveller line the pull 
rope is still in place ready for the next inevitable cable(s) that will go 
through the pipe.

At 10:16 AM 12/22/04, Mike Bragassa wrote:
>And to add, Roger:
>
>Secondly, expect the future pull-rope that you ran in the PVC  to snag or 
>twist up on something in your PVC at a later date.
>Might pay to run a cable or larger  rope? (Something less apt to snag.) 
>Hind sight is always 20-20.
>
>Mike Bragassa, K5UO
>
>"Rule of thumb...
>
>Always use at least twice the size of conduit you think you need."
>
>Roger Halstead (K8RI, EN73 & ARRL Life Member)
>
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>
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>
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         73,
         Mike, K4GMH