I think the rule of thumb is to use a conduit twice the diameter of
the cables. I remember having one heck of a time pulling two 7/8"
hardlines through a 4" conduit for a C-band satellite installation
at a TV station I was building 30 years ago.
By the time cables twist during the pull, I doubt that you will be
able to add anything to the 6" conduit with your four runs - if you
can even get them in there. You *may* be lucky if the conduit is
straight with no sweeps on the ends but you're pushing the same
situation I had all those years ago.
I'd go direct burial or at least *two* 6" conduits.
73,
... Joe, W4TV
On 2015-04-15 10:34 AM, Keith Dutson wrote:
Excellent question. I wish I had an answer. I am planning to run 1 piece
of LFD4-50A and three pieces of LDF5-50A to the shack. I have heard it can
be buried, but would prefer conduit. I am now thinking 6 inch for the 30
foot run from the tower, to allow for additional cables in the future.
73, Keith NM5G
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|