If you use braces as personnel safety anchorages, the TIA-222-G standard
recommends a minimum brace diameter of 3/8" with a minimum weld length of one
inch. TIA-222-G specifies that safety anchorages be capable of supporting at
least 5,000 pounds per attached climber.
Rohn 25 uses small diameter 5/16 inch Z braces and short 13/16 inch welds that
are extremely unsafe for use as safety anchorages. Only the legs on Rohn 25
can be used to provide safe anchorage.
The 7/16 inch braces and 1.25 inch welds used on Rohn 45 towers provide safe
anchorage; however, a climber should carefully inspect the welds before using
the braces as anchorages.
A climber should never use a diagonal brace as an anchorage because of the risk
From: draxfelton at gmail.com>
To: towertalk at contesting.com>
Date: Fri, 21 Nov 2008 00:05:33 -0500>
Subject: [TowerTalk] Lanyard hookup to tower
> > I have an additional question:>
Is it ok to be clamping the lanyards onto the Z bars of Rohn 25G?
> > My lanyards hooks won't fit around the tower legs. Even so it would still
> > be> relying on those welds.
> Are the welds really strong enough individually to withstand the shock of a>
> 200lb. person falling up to 6 feet with shock absorbing lanyards?
> > > KB3X
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