POWER February 2014 - 23

3. Electrical enclosure zone panel.
Courtesy: Victaulic
got mussels?
All of the steel and the roof of the building
has to be tight, which makes it difficult to
get a positive test back. In fact, it often
fails because we have an older building and
there is too much leakage. "
With older turbines in the facility that have
doors and dampers that do not fully close, the
plant couldn't get a sealed enclosure (Figure
3) without a considerable retrofit expense.
Should an incident arise while the doors and
dampers are open, the halon system wouldn't
work effectively as designed.
With sustainability, safety, and room
integrity issues top of mind, FP&L hired
Space Coast Fire and Safety to provide a
new fire suppression system for the plant.
Officials at Putnam investigated several
options, including CO2
Victaulic Vortex Fire Suppression System.
In the fire protection industry, CO2
systems and the
has
been around for awhile and has been used
effectively over the years in unoccupied
areas. The National Fire Protection Association
and U.S. Environmental Protection
Agency (EPA), however, have taken
an aggressive stand on its use, making it
increasingly difficult to install, given the
risk factors associated with the gas. According
to the EPA, at the minimum design
concentration for its use as a total
flooding fire suppressant (34%), CO2
is lethal.
As a result, it requires pre-discharge
alarms and activation delays to allow for
the evacuation of personnel. Similar to
halon, CO2
systems also require good enclosure
integrity to function properly.
A Nontoxic System
With room integrity-or lack thereof-
among the top considerations for a new fire
suppression system at the Putnam Power
Plant, the contractor and plant engineers
evaluated and ultimately selected the Victaulic
Vortex Fire Suppression System as a
replacement for the halon system. Victaulic
Vortex is the industry's first hybrid clean
agent/water mist system; in 2009, Factory
Mutual established a new category-FM
February 2014 | POWER
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POWER February 2014

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