NFPA 111-2019 Standard on Stored Electrical Energy Emergency and Standby Power Systems (Effective Date 1 13 2018).pdf

1、111 NFPA Standard on Stored Electrical Energy Emergency and Standby Power Systems 2019IMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA STANDARDS NOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA STANDARDS NFPA codes, standards, recommended practices, and guides (“NFPA Standards”), of wh

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31、 at no cost at www.nfpa.org/docinfo.111-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright 2018 National Fire Protection Association . All Rights Reserved. NFPA 111 Standard on Stored Electrica

32、l Energy Emergency and Standby Power Systems 2019 Edition This edition of NFPA 111, Standard on Stored Electrical Energy Emergency and Standby Power Systems, was prepared by the Technical Committee on Emergency Power Supplies and released by the Correlating Committee on National Electrical Code . It

33、 was issued by the Standards Council on December 24, 2017, with an effective date of January 13, 2018, and supersedes all previous editions. This edition of NFPA 111 was approved as an American National Standard on January 13, 2018. Origin and Development of NFPA 111 The Technical Committee on Emerg

34、ency Power Supplies was organized in 1976 by NFPA in recognition of the demand for guidelines on the assembly, installation, and performance of electrical power systems to supply critical and essential needs during outages of the normal power source. During the development of a base standard (NFPA 1

35、10, Standard for Emergency and Standby Power Systems), it was determined that several power sources were available for emergency and standby power systems. The committee determined that sufcient differences existed between these sources to justify separate documents providing clearly dened specics.

36、Each document would follow the basic format of NFPA 110 to provide a consistent basis for comparison and usage and would remain under the jurisdiction of the Technical Committee on Emergency Power Supplies. Because of the unique knowledge necessary to provide an authoritative document, the technical

37、 committee authorized a subcommittee in 1982 to prepare a draft document on systems using stored energy sources. In 1986, a document tentatively titled NFPA 110A, Stored Energy Emergency and Standby Power Systems, was submitted for adoption at the 1989 NFPA Annual Meeting. Formally designated as NFP

38、A 111, this document addressed the performance of stored energy systems with appropriate equipment detail. The requirements of the standard were considered necessary to obtain the minimum level of reliability and performance and to achieve an on-site stored energy auxiliary electrical power source s

39、uitable to the needs of the applicable requirements. If followed, its use would result in a system suitable for various situations as required by other codes and standards. The second edition in 1993 contained only minor changes. For the 1996 edition, a section was added to cover the acceptability o

40、f systems, methods, and devices other than those listed in the document. The 2001 edition contained two changes: informational text was moved to the appendix, and the operational testing requirements were expanded. The 2005 edition underwent a complete rewrite in accordance with the Manual of Style

41、for NFPA Technical Committee Documents. Along with the rewrite, some of the denitions were revised and located in Chapter 3. Other data in the document were transferred to the table format for better usability. The 2010 edition revised the document scope to clarify that an uninterruptible power supp

42、ly (UPS) supplied through an emergency power supply (EPS) is not a stored emergency power supply system (SEPSS). The denitions of automatic transfer switch and nonautomatic transfer switch were revised to correlate with NFPA 110. New denitions covered battery cell types, bridging systems, and electr

43、ochemical energy storage devices. Energy sources, convertors, inverters, and accessories were covered by Chapter 5 revisions that claried existing requirements, recognized new battery types, and provided requirements covering stored energy sources other than batteries. Revisions to area ventilation

44、requirements acknowledged that there might be ammable gases other than hydrogenSTORED ELECTRICAL ENERGY EMERGENCY AND STANDBY POWER SYSTEMS 111-2 2019 Edition associated with energy sources that are not batteries. Annex diagrams were added to illustrate ywheel and rotating EPS systems, different UPS

45、 systems, and basic switching points of an SEPSS. A rectier plant, which is often used in the telecommunications industry, was added in the 2013 edition as a potential stored emergency power supply system (SEPSS). These rectier plants were also included as a suitable bridging system. The location of

46、 SEPSS equipment serving Level 1 EPSS loads was revised to correlate with the requirements of NFPA 110. Throughout the 2016 edition, references to a stored emergency power supply system were revised to a stored-energy emergency power supply system to more appropriately describe the type of system. R

47、equirements for baseline measurements were revised to provide more accurate data. The load test was revised to correlate with the IEEE 450 rate-adjusted and time-adjusted capacity tests. In the 2019 edition, Table 4.2.2 has been revised to cover the interruption time without reference to specic SEPS

48、S types.COMMITTEE PERSONNEL 111-3 2019 Edition Correlating Committee on National Electrical Code Michael J. Johnston, Chair National Electrical Contractors Association, MD IM Mark W. Earley, Secretary (Nonvoting) National Fire Protection Association, MA James E. Brunssen, Telcordia Technologies (Eri

49、csson), NJ UT Rep. Alliance for Telecommunications Industry Solutions Kevin L. Dressman, U.S. Department of Energy, MD U Palmer L. Hickman, Electrical Training Alliance, MD L Rep. International Brotherhood of Electrical Workers David L. Hittinger, Independent Electrical Contractors of Greater Cincinnati, OH IM Rep. Independent Electrical Contractors, Inc. Richard A. Holub, The DuPont Company, Inc., DE U Rep. American Chemistry Council John R. Kovacik, UL LLC, IL RT Alan Manche, Schneider Electric, KY M Roger D. McDaniel, Georgia