[TowerTalk] guy posts math

[Jim Thomson]

Date: Mon, 20 Jul 2015 02:32:54 -0500
From: "W5GN" <w5gn at mxg.com>
To: "'Jim Thomson'" <jim.thom at telus.net>, <towertalk at contesting.com>
Subject: Re: [TowerTalk] guy posts math

My dad ran Bartlett Tree who serviced all of the AEP lines in
SW Virginia and their engineer said they put 7 feet of a 35 foot
pole in the ground in the late 50s. Sounds like your TELCO poles
had lighter loads and thus put less in the ground than power poles.

73

Barry, W5GN

##  all the telcos  used to use lead sheathed main cables..and that stuff weighed a helluva lot.
Most of it had been replaced by the late 80s.   No more lead.  3-4 versions of the newer format.
Both the old lead and the newer types are still pressurized from the main office with 10 psi of 
dry air.   Sensors are installed   at the middle and extreme ends to measure pressure loss. 

##  around here its all clay below grnd, but 3 miles south of me its loamy soil.   But they still
use the 10%  of total height  + 2 ft rule in either location.  Bell, Verizon AT+T ,etc, still use the same format.

Jim  VE7RF