[SML] Question about Safe Working Loads

[Derek Leffew]

Hey Ford, 
I don't know if this would help or not...

From 
http://www.etcconnect.com/Support/Articles/Load-Rating-for-Source-Four-C-Cla
mps.aspx :
" How much weight can a Source Four C-Clamp carry?
Many of our fixtures ship with a C-clamp (7060A2009) to mount the fixture in
the normal theatrical manner from a length of Schedule 40 1.5" ID (2" OD)
pipe.  We are occasionally asked about the load rating of this clamp.
There is no load rating for this part as an individual assembly.  It is sold
as part of the top-level Source Four fixture assembly or as a Source Four
fixture accessory. It has been tested by UL as a safe hanging device for a
Source Four and is covered in our UL 1573 rating for stage and studio
lighting fixtures.  In other words, UL says it is a safe way to hang a
Source Four, but it is not independently-rated and is not sold as a
rigging/load-bearing device for any other purpose. "

(PS--Don't try to use an ETC clamp with 1/2" pipe to make a sidearm.
1. ETC does not approve,
2. The pipe don't fit.  Whether intentionally by design or happy (but
frustrating) accident.)

So rather than a specific pound/kilometer/newton/joule SWL/WLL/WTF rating,
state that the Chauvet "video wall panel hanger" hardware is acceptable and
approved for hanging a wall of maximum X units high, provided all the
following conditions have been met/exceeded, as tested by (NRTL of your
choice), yada yada.

Maybe?  Interested to hear what others think of this "cop out."