UL 864-23 Standard for control units and accessories for fire alarm systems
Publication Year
2023
Document Status
Current
Abstract
Specifies discrete electrical control units and accessories for fire alarm systems; electrically- and electronically-operated amplifiers that provide speech communication and distinctive sounds in conjunction with fire protective signaling systems; and commercial stationary and fixed power supplies for fire-protective signaling systems.
Document History
Supersedes UL 864-14. Revised October 2024.
Publisher Information
Underwriters Laboratories
Established in 1894 as the Underwriters' Electrical Bureau, UL is a global safety consulting and certification company, approved to perform safety testing by the U.S. federal agency of Occupational Safety and Health Administration.
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