Recently, I encountered questions regarding the nonactuation of smoke detectors in an atmosphere the occupants reported as “smoky.” The discussions revealed a general misunderstanding of how a fuel-dependent fire grows, how smoke and heat detectors function, and how a designer should apply them to a space. Learning these devices’ limitations is the best way to understand a fire alarm system’s detection capabilities.
from EC Mag - Power and Integrated Building Systems Magazine http://www.ecmag.com/section/systems/methods-detection-smoke-and-heat-detectors
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