Bob said:
I recently was asked to bid pulling in a main distribution cable for CATV.
(about 600 feet to split and feed about 30 drops.) I figured that it just
needed an RG-11, but I was told they speced RG-500. I never heard of it and
a quick search turns up nothing. Any ideas?
Probably mean .500" Hardline -- that's certainly what I spec when
requesting bids for anything that long. Had a contractor calling it
RG-500 for nearly a year on our last building and it nearly drove me
insane for some reason.
..500 is the most common of the options for coaxial distribution in
larger environments. Others are .750 and 1.000. Very common to see on
telephone poles (usually the run closest to the ground) Somewhat
sensitive to installation practices (kinks fairly easially unless given
a very generous bend radius and damaged sections must be replaced. My
spec is "in their entirity" though some may allow you to just cut and
splice.).
Cut it with a hacksaw, beyond that you need a coring tool to remove the
dilectric, and wrenches to install the connectors.
Commscope and Times Fiber Cable are the two biggies in this area,
Commscope P3.500 is what I usually spec with an "or equal" allowance.
Cable Companies seem to be more or less equally split between Commscope
and TFC, institutional also seems to be split but leaning to Commscope.
see <
http://www.commscope.com/html/db_trunk.shtml>, in general, or
<
http://websvr.commscope.com/CommSco...dc262e485256dbb00488c7f/$FILE/P3 500 JCAT.pdf>
for a specific example.
Hope this helps,
Lincoln
