Another factor in my case is that the outside NEMA box that terminates the
conduit at the house is at the unheated attached garage. The coax/cables leave
the rear of the box in an 8" diameter duct through the wall. Once in the
garage, they are in a framed cable tray that continues to the ceiling of the
garage where it goes into the attic space. Since there is a long "thermal
buffer" that may be the key to my dry conduit. As I said, seven years and no
water.
Perry K4PWO
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Doug
Smith
Sent: Thursday, March 05, 2015 11:12 AM
To: Tower Talk
Subject: Re: [TowerTalk] Water in Conduit...
Here’s a data point: I have used underground PVC conduit for many years with no
water ingress. There are two runs, about 100’ each. Both are 3” PVC,
chemically welded and plowed into the ground by a sprinkler company. After 7
years, I pulled the cables out and they were dry as a bone.
73,
Doug, W7KF
http://www.w7kf.com <http://www.w7kf.com/>
> On Mar 5, 2015, at 9:22 AM, TexasRF--- via TowerTalk
> <towertalk@contesting.com> wrote:
>
> Hi Perry, any conduit will end up with water inside unless it is
> pressurized.
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