[TowerTalk] Schedule 40 or 80 PVC Conduit Underground

[john at kk9a.com]

Why would tower/antenna control lines and coax need to be buried below the
frost line?

John KK9A

To:	"'Allen Brier N5XZ'" <n5xz at earthlink.net>,	<towertalk at contesting.com>
Subject:	Re: [TowerTalk] Schedule 40 or 80 PVC Conduit Underground
From:	"Dick Green WC1M" <wc1m73 at gmail.com>
Reply-to:	wc1m73 at gmail.com
Date:	Wed, 12 Nov 2014 07:02:29 -0500

<snip> Where I live, Schedule 80 is
always used for buried conduit runs, but that's probably because the frost
line goes down four feet and the conduit has to be buried at least that
deep. Could be a different story in your area.

73, Dick WC1M