[TowerTalk] Insulator options for 160m vertical

[Jim Thomson]

Date: Sat, 1 Jun 2013 08:39:27 -0400
From: "James Wolf" <jbwolf at comcast.net>
To: <towertalk at contesting.com>
Subject: Re: [TowerTalk] Insulator options for 160m vertical


<<I am planning a 160m vertical with elevated radials, using Rohn 25G tower
sections.

Years ago Array Solutions had custom made insulators for Rohn 25.  You might
check with them.

Jim, KR9U


##  My concern with those solid fiberglass insulators is.....   any water that comes down
the inside of the three tower legs   will NOT get past the solid insulators that are inserted 
into the legs.   The solid insulators of course are used to splice two rohn 25  or 45  sections
together.   Water  will  collect and collect and collect, and ditto with any and all condensation. 
Then when it dips below freezing, ice forms and the legs can slit wide open, etc.   Or the 
legs will eventually rust from the inside out. 

##  To use those solid insulators,  you would 1st have to drill a 1/8 inch  or  5/32 inch hole on the 
inside of each leg, and slightly above the insulator.   Either that and or use a modified solid insulator 
with a 1/8” hole down the inside of each insulator.   Even then, debris could easily plug em. 

##  Dunno what rohn uses to get around this problem with their megabuck insulated section.

Later... Jim   VE7RF