I am not following what you are saying here. Are you saying you
blow in the ghosts in the conduit before pulling in the cables?
How is that different from leaving pull ropes in as usual?
Or are you saying you are able to blow it through after you
have pulled cables thru? I don't see how you can be sure
it won't get stuck on the existing cables. Please explain.
I completely appreciate the twist problem (been there done that).
I just don't understand your solution.
73
Rick N6RK
On 8/29/2017 7:02 AM, Thomas Hybiske wrote:
The problem with leaving pull ropes in the conduit for future pulls is that
can make slow helical twists with the other conductors already in there.
I've pulled a bundle of control and transmission lines out of conduit that
were all intertwined with each other and quite a mess from using pull lines
left in the conduit.
Instead, I blow a "ghost" thru the conduit for each new conductor. Using
mason's twine, I knot it to a plastic back with I stuff in the conduit.
Then I use the exhaust of a shop vac to propel the ghost thru the conduit,
paying out the twine behind it. The ghost flies out the other end with
great force if enough air is used. This is followed up with the actual
pull line. I've used this method successfully with conduit up to 175' in
length.
Tom Hybiske, K3GM
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