To me, Occupied and Used means 'potential for ignition'. This is not yet
part of Hazard Classification, but I think it will be in the future.
Friction sparks are high on the list of causes of accidental fires, so I
see mechanical equipment in attic spaces, with metal fans rotating at high
angular velocity, electrical switchs clicking, dampers banging, etc., as
USING the so called unused attic space.
On Oct 13, 2016 3:24 PM, "Roland Huggins" <rhugg...@firesprinkler.org>
> add NFPA caveat about not being a formal interpretation of NFPA or its
> technical committees
> Roland Huggins, PE - VP Engineering
> American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives
> Dallas, TX
> On Oct 13, 2016, at 12:47 PM, IPA <nsfdc...@gmail.com> wrote:
> I wouldn't lose any sleep over using light hazard if it's a typical wood
> truss scenario with an airhandler and ductwork in it. 'Unused attics' are
> light hazard. Does the presence of HVAC / ductwork make it a 'used attic'?
> "Used" seems to imply occupants have easy access to, and routinely use, the
> room as part of ordinary operations.
> On Thu, Oct 13, 2016 at 11:56 AM, Roland Huggins <rhuggins@
> firesprinkler.org> wrote:
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