[Top] [All Lists]

Re: [TowerTalk] Sealing cables at PVC exit?

To:, <>
Subject: Re: [TowerTalk] Sealing cables at PVC exit?
Date: Sat, 15 Jul 2006 17:20:18 +0000
List-post: <>

     From your description I'm not sure exactly how your PVC is configured at 
each end.  Assuming your PVC emerges from the ground vertically, you ought to 
include a PVC U-turn (two 90-degree elbows) in the end(s) so that the cables 
emerge DOWNWARD.  You can then use attic insulation to stuff the end(s) of the 
PVC U's around the cables.  And don't glue these U's to the vertical PVC; let 
them loose so you can remove them for easier cable pulling.

     This method: allows for the conduit to breathe, i.e., lets moisture 
evaporate to a certain extent; prevents large fauna such as mice from entering 
said conduit; and is easy to remove to add/remove cables in the future.

     In my conduit system the ends of the 3 inch PVC's enter steel boxes at the 
shack and tower ends.  Therefore, I don't need to include such drip loops in my 
PVC system.  At the shack end the cables are routed from the steel box into the 
crawl space underneath the ground-floor shack.  In this manner the moisture 
from the conduit can be evacuated from the crawl space through normal 

73 de
Gene Smar  AD3F

 -------------- Original message ----------------------
From: "Paul Ferguson" <>
> I am using buried 4-inch PVC pipe to run coax and control cables from 
> shack to tower base. The PVC come out of the ground, turn horizontal, 
> and end a foot or two above the tower base. The cables will exit the 
> PVC, take a small drip loop, and get routed onward.
> What is the best way to seal the end of the PVC around the cables? I 
> thought about using a PVC end cap and drilling holes, but adding a 
> future cable would be difficult. I am interested in hearing what 
> creative solutions others have found.
> 73,
> Paul
> K5ESW  
> _______________________________________________
> _______________________________________________
> TowerTalk mailing list


TowerTalk mailing list

<Prev in Thread] Current Thread [Next in Thread>