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)
_______________________________________________
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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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.
_______________________________________________
TowerTalk mailing list
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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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