Wow..loaded question.
I am an Electrician, with a bunch of experience pulling long runs. Here are
a few things to consider.
1) Do you plan on pulling this by hand? If so, get help, and use a bunch of
wire lubricant.
2) I would break the run up at least once, mid way if you can. Every 100 ft
would be best, that way you can use a 100' fish stell to get the rope in.
You can buy a quazite box that you can bury. That way, if you have trouble
pulling it, the reason is obvious.
3) You can get a line in the conduit several ways. a) rent a duct rodder. It
is a coil of varying length of fiberglass rod, about 3/8" diameter. b) buy or
rent a "mouse" set, and use a vacuum to blow it in. Might need a second vac
on the other end to suck it in at the same time. A mouse is a foam pellet
about the inside diameter of the conduit. You attach a thin string to it, and
use that to pull a heavier rope in.
73- Chuck KI9A
In a message dated 7/19/2008 5:14:50 P.M. Central Daylight Time,
RadioIR@charter.net writes:
After being disappointed in the direct burial method, I am planning on
adding some conduit to access my low band receiving antennas. I have
one section of conduit that is 500 feet. Can I do this with one pull,
or will I be wishing a I had added an access box and broken the pull up
into two parts? I have never pulled a 500 ft run before. Since it is
unlikely that I will ever want to add another cable into this conduit, I
was planning on using 1.5 inch conduit. The run will be straight except
for a couple of very long curves and then the curve at the exit out of
the ground at the ends. I need to pull one run of RG6 and one run of 16
ga landscape lightning cable for dc.
Before someone suggests sending the dc down the RG6 to eliminate a
cable, the dc resistance of 635 ft of RG6 is about 22 ohms. (It's 625
ft total to get to the operating position.) Besides the RG6 already has
dc controls signals on it as well as RF.
Second question: What is a good method of putting the pull string in a
conduit this long? I have put it there when building the conduit, but
that is a pain. I have used an air compressor to blow a string tied to
a rag thru the conduit, but never on a conduit this long. Is that
likely to work?
Jerry, K4SAV
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