This will be very tough. If this is a new installation I would just direct
bury the Heliax. If the conduit is already buried I would at least dig up
the ends and so that they have no bends. I think it is easier to fish
everything at once but I do not fish Heliax though my conduits. I would
fish the new pull line when you run the wires rather than try to get a
mouse though a partially filled tube.
John KK9A
To: <towertalk@contesting.com>
Subject: [TowerTalk] Pulling long length of 7/8 hardline in conduit
From: "Mitch" <mskobier@charter.net>
Date: Fri, 2 Sep 2016 10:54:12 -0700
All,
I'm looking for anyones experience with pulling a long
(almost 400ft) length of 7/8" hardline in underground conduit. I have 4"
conduit which will have a number of sweeps in it. Here's how it will lay
out. The first 90 degree sweep is where the hardline goes down from the
junction box into the ground. Then it runs approximately 80ft straight, then
hits another 90 degree sweep, then runs mostly straight approximately 230ft
where it hits a 45 degree sweep, then runs approximately 60ft to the final
90 degree sweep where it turns vertical up into the junction box at the
tower. I'm concerned with possible kinking of the hardline making that many
turns. I can possibly not use the 90 degree sweeps at each end during the
pulling, but it would be nice to do it all without having to make conduit
connections after the hardline is in place. I plan on using lots of wire
pulling lubricant during the pull. I cannot re-route the hardline/conduit.
This is the only way I can run the hardline to the tower. Has anyone on the
list ever pulled hardline through a number of sweeps?. There will eventually
be a number of other coaxes and control cables in the same conduit. I plan
on pulling the hardline first, so I have the most room, then I will run a
mouse through the conduit to avoid having the remaining cables trying to
wrap around the hardline and getting wedged under or stuck by the hardline.
Thanks in advance for any and all help.
Mitch KJ7JA
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