Hi Ron,
I have a 94' coax run from my tower antennas to the house entrance. I
had considered running the cables thru a 3" pvc tube from near the tower
thru the attic and down into the shack from the ceiling. Too much of a
hassle. Instead, I brought the cables (4) down inside the cable arms
and ran them along the house under the eaves. I used 6" screw-in
bicycle hooks about every 6 feet to hold them. At the NEMA box outside
the shack, I dropped the cables to come up under the box and connected
them to lightning arrestors attached underneath. The box is grounded to
an 8ft rod outside the shack, below the NEMA box. Cables from inside
get into the box thru a length of 3" galvanized pipe inserted in the
wall. Everything is weather-tight. If I ever need to change out a
cable, I don't have to crawl under a house or thru the attic. Cables
inside the shack are grounded with a separate external ground.
Best of luck,
Bill W6RGS
On 3/23/2021 12:11 AM, Ron Hylton via TowerTalk wrote:
Hello All -
I'm contemplating the best route for the coax and control cables from a new tower to
my single-point ground and shack. The easiest and shortest way to get the
cables to my entry point is by running them through the crawl space of my house
(diagonal across the span of the house), and then back outside to the entry point.
My concern about doing this is bringing the cables into the house (albeit the crawl
space) without lightning protection. Certainly I could install protection at
the base of this tower for all lines before making the run under the house, but this
doesn't really adhere to the single point ground notion.
Trying to run the cables underground in conduit to the entry point would be
quite a hassle for multiple reasons - a retaining wall in the path, sprinkler
system, septic drain field, etc.
One other note - I'm in the Pacific Northwest, so lightning is not a real
common occurrence, but I still want to do this the safe and right way.
Any thoughts would be most appreciated.
73,Ron AD7LHillsboro, Oregon
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|