If the ballasted system is properly designed to withstand the wind
loading (90 mph to 150 mph), I would say that that most definitely
qualifies as "firmly secured".
Is someone actually giving you trouble on this issue, or are you just
thinking ahead?
R. Walters
r...@solarray.com
Solar Engineer
On Oct 26, 2009, at 1:51 PM, Jason Szrom wrote:
Hello Wrenches…
In typical ballasted systems, the combiner box is mounted on
unistrut fastened to roof stand-offs which are not fastened to the
roof. I was wondering what your opinion would be about this in
reference to the following NEC section:
110.13 Mounting and Cooling of Equipment
(A) Mounting. Electrical equipment shall be firmly secured to the
surface on which it is mounted.
Has anyone ever had a problem with this during an inspection?
Thanks,
Jason Szrom
Engineer
Solar Energy Systems, LLC
1205 Manhattan Ave
Suite 1210
Brooklyn, NY 11222
718-389-1545 x13
www.solarEsystems.com
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