Which NFPA standard outlines the requirements for pressure supervisory signals in fire protection systems?

The NFPA standard that outlines the requirements for pressure supervisory signals in fire protection systems is NFPA 72, which is the National Fire Alarm and Signaling Code. This code addresses the design, installation, and maintenance of fire alarm systems, and it includes specific provisions related to monitoring and supervisory signals, including those related to pressure.

Pressure supervisory signals are crucial in various fire protection systems, particularly in sprinkler systems, to ensure that the water supply pressure is maintained within acceptable limits and to alert the system operators of any drops that could indicate a problem, such as a leak or a malfunction.

By establishing requirements for these signals, NFPA 72 ensures that fire alarm systems can effectively notify building occupants or fire personnel of abnormal conditions, thereby enhancing fire safety and response capabilities.