On 4/5/2011 6:14 PM, Steve K7AWB wrote:
> As long as we are on the topic, which would be better?
> 1) secure the 4 inch conduit sections together in the trench and then fill
> in the trench with dirt on top so the sections could not move when pulling
> cables through them, or
> 2) keep the trench unfilled, but the 4 inch conduit sections put together,
> and pull the cables through them without the dirt on top?
> As I see it, once you put the dirt on top, there is no going back, but the
> conduit does not move. On the other hand, conduit without weight on it will
> tend to move as the cables as pulled through, especially when the "last"
> cable is tried.
If I can put the conduit together "in the trench and under tension" then
it makes little difference when I put the coax in. In the case of
being able to keep the conduit under tension I do not glue it, but lube
each joint with DC4 or DC5 compound. (Silicone Dielectric Grease) If I
can't keep it under tension then I glue the sections together.
I use a 1/4" Nylon messenger cable a bit over twice as long as the
conduit with the excess coiled up in a NEMA enclosure at one end or the
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