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Re: [TowerTalk] Pull rope in PVC

To: Mike <k4gmh@arrl.net>,"Mike Bragassa" <bragassa@consolidated.net>,<towertalk@contesting.com>
Subject: Re: [TowerTalk] Pull rope in PVC
From: kb9yku <kb9yku@comcast.net>
Date: Thu, 23 Dec 2004 22:50:41 -0500
List-post: <mailto:towertalk@contesting.com>

the miles of conduit i installed and pulled wire into
i have found it better to remove the old wire pull it back in with the new wire
unless you use a new conduit
put 2 runs of conduit in ware you need one now


2 in conduit mite help with a small fill
like wire that would fit in a 1/2 in. in the two inch
they make liners to help you add more wire later its used in underground ducks
its polyethylene i think and you pull them all in at one time with a light pull string in it to pull rape in with
kb9yku







At 12:10 PM 12/23/2004, Mike wrote:
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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73, Mike, K4GMH

_______________________________________________

See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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_______________________________________________

See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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