Does NFPA 72®, National Fire Alarm and Signaling Code, allow you to use two different types of audible alarms in the same building? That was the question a fire alarm system designer who was upgrading a building's alarm system asked recently on the NFPA LinkedIn Forum. Could he use horns or horn/strobes in half the building, while leaving bells or bell/strobes in the other half? The answer was yes, if need be.
However, Wayne Moore, vice-president of Jensen Hughes, feels that the real answer should be "yes, but..." To find out why Wayne is hesitant to mix audible alarms, read his column "Mixed Signals" in the May/June issue of NFPA Journal.
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