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NEMA publishes white paper on low frequency audible signals.
Press Release Summary:
Jul 30, 2015 - NEMA published NEMA SBP 4-2015 Low Frequency Audible Signals, which addresses need for and development of low-frequency audible signal used in fire alarms, CO alarms, and fire or CO alarm systems. Developed by the Fire, Life Safety, Security, and Emergency Communication Section, document addresses why low-frequency signal is needed, difference between low-frequency signal and standard audible fire alarm signal, and when and where low frequency signal is required.
Original Press Release
NEMA Publishes NEMA SBP 4-2015 Low Frequency Audible Signals
Press release date: Jul 28, 2015
This document was developed by the Fire, Life Safety, Security, and Emergency Communication Section. It addresses why a low-frequency signal is needed, the difference between the low-frequency signal and the standard audible fire alarm signal, and when and where the low frequency signal is required.
NEMA SBP 4-2015 may be downloaded free of charge on the NEMA website.
The National Electrical Manufacturers Association (NEMA) represents nearly 400 electrical, medical imaging, and radiation therapy manufacturers. Our combined industries account for more than 400,000 American jobs and more than 7,000 facilities across the U.S. Domestic production exceeds $117 billion per year. Our industry is at the forefront on electrical safety, reliability, resilience, efficiency, and energy security.
National Electrical Manufacturers Association
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