2019 NFPA 111 Standard - Current Edition
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  • Description

    Keep stored emergency power supply systems (SEPSS) reliable and safe with the 2019 edition of NFPA 111.

    NFPA 111, Standard on Stored Electrical Energy Emergency and Standby Power Systems is key anywhere an Uninterruptable Power Supply (UPS) is needed in the event of a disruption of the normal utility supply. This Standard covers performance requirements for stored electric energy systems providing an alternate source of electrical power in buildings and facilities during an interruption of the normal power source. It's used in industries such as finance, IT, and certain areas of health care -- anywhere continuous emergency power is legally required and/or a loss of power is unacceptable, even for a short duration.

    Improve life safety through reliable SEPSS.

    Poor maintenance of battery systems is a common cause of failure in Stored Emergency Power Supply Systems (SEPSS). NFPA 111 includes installation, maintenance, operation, and testing requirements as they pertain to the SEPSS performance. Provisions address every area of the system including:

    • Power sources
    • Transfer equipment
    • Controls
    • Supervisory equipment
    • Accessory equipment needed to supply electrical power to selected circuits

    To enhance usability, this edition has been revised to cover the interruption time without reference to specific SEPSS types.

    The 2019 edition of NFPA 111 is essential for designers, engineers, contractors, installers, and facility managers of any building that requires a UPS according to NFPA 101®, Life Safety Code® or another code. In addition to improving occupant safety, compliance with NFPA 111 saves money by extending the life of the system through proper care (Print, 32 pp., 2019)

     

    Interested in other editions of NFPA 111? Use the drop down menu above to select the edition year you need.

  • Table of Contents (2019 Current Edition)

    NFPA® 111 Standard on Stored Electrical Energy Emergency and Standby Power Systems, 2019 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Application.
    1.4 Equivalency.
    1.5 Function.
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications.
    2.3 Other Publications.
    2.4 References for Extracts in Mandatory Sections.
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    Chapter 4 Classification of Stored-Energy Emergency Power Supply Systems (SEPSS)
    4.1 General.
    4.2 Type.
    4.3 Class.
    4.4 Category.
    4.5 Level.
    Chapter 5 Emergency Power Supply: Energy Sources, Convertors, Inverters, and Accessories
    5.1 Energy Sources.
    5.2 Energy Conversion Equipment (ECE) — General.
    5.3 Instrumentation.
    Chapter 6 Transfer Switches and Protection
    6.1 General.
    6.2 Transfer Switches.
    6.3 Load Switching (Load Shedding).
    6.4 Bypass Switches.
    6.5 Protection.
    Chapter 7 Installation and Environmental Considerations
    7.1 General.
    7.2 Location.
    7.3 Heating, Cooling, Ventilating, and Humidity Control.
    7.4 Protection.
    7.5 Distribution.
    7.6 Installation Acceptance.
    Chapter 8 Routine Maintenance and Operational Testing
    8.1 General.
    8.2 Manuals, Special Tools, and Spare Parts.
    8.3 Maintenance and Operational Testing.
    8.4 Operational Inspection and Testing.
    Annex A Explanatory Material
    Annex B Diagram of SEPSS Versus EPSS Use of Stored-Energy System
    Annex C Informational References
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  • Also in NFPA 111, Standard on Stored Electrical Energy Emergency and Standby Power Systems