1、NFPA 110 Standard for Emergency and Standby Power Systems 2016 Edition NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471 An International Codes and Standards OrganizationIMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA DOCUMENTS NOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA DOCUMENTS
2、 NFPA codes, standards, recommended practices, and guides (“NFPA Standards”), of which the document contained herein is one, are developed through a consensus standards development process approved by the American National Standards Institute. This process brings together volunteers representing var
3、ied viewpoints and interests to achieve consensus on re and other safety issues. While the NFPA administers the process and establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate, or verify the accuracy of any information or the soundness of a
4、ny judgments contained in NFPA Standards. The NFPA disclaims liability for any personal injury, property or other damages of any nature whatsoever, whether special, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on NFPA Standards.
5、The NFPA also makes no guaranty or warranty as to the accuracy or completeness of any information published herein. In issuing and making NFPA Standards available, the NFPA is not undertaking to render professional or other services for or on behalf of any person or entity. Nor is the NFPA undertaki
6、ng to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. The NFPA has n
7、o power, nor does it undertake, to police or enforce compliance with the contents of NFPA Standards. Nor does the NFPA list, certify, test, or inspect products, designs, or installations for compliance with this document. Any certication or other statement of compliance with the requirements of this
8、 document shall not be attributable to the NFPA and is solely the responsibility of the certier or maker of the statement. REMINDER: UPDATING OF NFPA STANDARDS Users of NFPA codes, standards, recommended practices, and guides (“NFPA Standards”) should be aware that NFPA Standards may be amended from
9、 time to time through the issuance of Tentative Interim Amendments or corrected by Errata. An ofcial NFPA Standard at any point in time consists of the current edition of the document together with any Tentative Interim Amendment and any Errata then in effect. In order to determine whether an NFPA S
10、tandard has been amended through the issuance of Tentative Interim Amendments or corrected by Errata, visit the Document Information Pages on NFPAs website. The Document Information Pages provide up-to-date, document specic information including any issued Tentative Interim Amendments and Errata. To
11、 access the Document Information Page for a specic NFPA Standard, go to http:/www.nfpa.org/docinfo to choose from the list of NFPA Standards or use the search feature on the right to select the NFPA Standard number (e.g., NFPA 101). In addition to posting all existing Tentative Interim Amendments an
12、d Errata, the Document Information Page also includes the option to sign-up for an “Alert” feature to receive an email notication when new updates and other information are posted regarding the document. ISBN: 978-145591169-1 (Print) ISBN: 978-145591206-3 (PDF)IMPORTANT NOTICES AND DISCLAIMERS CONCE
13、RNING NFPA STANDARDS ADDITIONAL NOTICES AND DISCLAIMERS Updating of NFPA Standards Users of NFPA codes, standards, recommended practices, and guides (“NFPA Standards”) should be aware that these documents may be superseded at any time by the issuance of new editions or may be amended from time to ti
14、me through the issuance of Tentative Interim Amendments or corrected by Errata. An ofcial NFPA Standard at any point in time consists of the current edition of the document together with any Tentative Interim Amendments and any Errata then in effect. In order to determine whether a given document is
15、 the current edition and whether it has been amended through the issuance of Tentative Interim Amendments or corrected through the issuance of Errata, consult appropriate NFPA publications such as the National Fire Codes Subscription Service, visit the NFPA website at www.nfpa.org, or contact the NF
16、PA at the address listed below. Interpretations of NFPA Standards A statement, written or oral, that is not processed in accordance with Section 6 of the Regulations Governing the Development of NFPA Standards shall not be considered the ofcial position of NFPA or any of its Committees and shall not
17、 be considered to be, nor be relied upon as, a Formal Interpretation. Patents The NFPA does not take any position with respect to the validity of any patent rights referenced in, related to, or asserted in connection with an NFPA Standard. The users of NFPA Standards bear the sole responsibility for
18、 determining the validity of any such patent rights, as well as the risk of infringement of such rights, and the NFPA disclaims liability for the infringement of any patent resulting from the use of or reliance on NFPA Standards. NFPA adheres to the policy of the American National Standards Institut
19、e (ANSI) regarding the inclusion of patents in American National Standards (“the ANSI Patent Policy”), and hereby gives the following notice pursuant to that policy: NOTICE: The users attention is called to the possibility that compliance with an NFPA Standard may require use of an invention covered
20、 by patent rights. NFPA takes no position as to the validity of any such patent rights or as to whether such patent rights constitute or include essential patent claims under the ANSI Patent Policy. If, in connection with the ANSI Patent Policy, a patent holder has led a statement of willingness to
21、grant licenses under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license, copies of such led statements can be obtained, on request, from NFPA. For further information, contact the NFPA at the address listed below. Law and Regulations
22、 Users of NFPA Standards should consult applicable federal, state, and local laws and regulations. NFPA does not, by the publication of its codes, standards, recommended practices, and guides, intend to urge action that is not in compliance with applicable laws, and these documents may not be constr
23、ued as doing so. Copyrights NFPA Standards are copyrighted. They are made available for a wide variety of both public and private uses. These include both use, by reference, in laws and regulations, and use in private self-regulation, standardization, and the promotion of safe practices and methods.
24、 By making these documents available for use and adoption by public authorities and private users, the NFPA does not waive any rights in copyright to these documents. Use of NFPA Standards for regulatory purposes should be accomplished through adoption by reference. The term “adoption by reference”
25、means the citing of title, edition, and publishing information only. Any deletions, additions, and changes desired by the adopting authority should be noted separately in the adopting instrument. In order to assist NFPA in following the uses made of its documents, adopting authorities are requested
26、to notify the NFPA (Attention: Secretary, Standards Council) in writing of such use. For technical assistance and questions concerning adoption of NFPA Standards, contact NFPA at the address below. For Further Information All questions or other communications relating to NFPA Standards and all reque
27、sts for information on NFPA procedures governing its codes and standards development process, including information on the procedures for requesting Formal Interpretations, for proposing Tentative Interim Amendments, and for proposing revisions to NFPA standards during regular revision cycles, shoul
28、d be sent to NFPA headquarters, addressed to the attention of the Secretary, Standards Council, NFPA, 1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02269-9101; email: stds_adminnfpa.org For more information about NFPA, visit the NFPA website at www.nfpa.org. All NFPA codes and standards can be view
29、ed at no cost at www.nfpa.org/freeaccess.110-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright 2015 National Fire Protection Association . All Rights Reserved. NFPA 110 Standard for Emergency
30、and Standby Power Systems 2016 Edition This edition of NFPA 110, Standard for 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 was issued by the Standards Council on May
31、26, 2015, with an effective date of June 15, 2015, and supersedes all previous editions. This edition of NFPA 110 was approved as an American National Standard on June 15, 2015. Origin and Development of NFPA 110 The Technical Committee on Emergency Power Supplies was organized in 1976 by NFPA in re
32、cognition of the demand for viable guidelines for the assembly, installation, and performance of electrical power systems used to supply critical and essential needs during outages of the primary power source. The intent was to establish the equipment requirements necessary to achieve an on- site au
33、xiliary electrical power source suitable to the needs of the applicable requirements and user criteria. In 1979, the Committees report proposing adoption of NFPA 110 was published but withdrawn because of issues involving the scope of the committee. In 1981, a revised report was returned to the Comm
34、ittee to resolve differences with other NFPA documents. At the 1982 NFPA Fall Meeting, the Committees report was adopted as a tentative standard (NFPA 110T-1983) in order to expose the document to public review. NFPA 110 was formally adopted as a standard at the 1984 NFPA Fall Meeting and designated
35、 as the 1985 edition, which claried scope statements, prototype testing, battery and bypass-isolation switch requirements, and revised maintenance requirements. The 1988 edition included several new denitions and further claried transfer switch and installation testing requirements. The 1993 edition
36、 reected the adoption of NFPA 111, Standard on Stored Electrical Energy Emergency and Standby Power Systems, a basic requirement for one-step loading for all prime movers, an update on battery technology, restrictions on unnecessary transferring of loads, and the need for battery maintenance. The 19
37、96 edition added revised monthly load testing requirements for generator sets, consideration for potential wet stacking, various types of fuel tanks and spillage considerations, restrictions on the types of permitted batteries, and working space requirements. It also claried the minimum number of cr
38、anks that an engine must be capable of completing, cooling system requirements, and timing devices in health care facilities for testing a generator. The 1999 edition deleted the testing of generator sets at 50 percent of the emergency power supply system load because the relevant measure is the nam
39、eplate rating. The exception for wet stacking was also deleted. Exhaust temperature monitoring was added because it is an acceptable performance measure of proper emergency power supply loading. The 2002 edition was restructured to comply with the Manual of Style for NFPA Technical Committee Documen
40、ts. Introductory material in Chapter 1 was formatted for consistency among all NFPA documents. Referenced publications were relocated from the last chapter to Chapter 2, resulting in the renumbering of chapters. Denitions in Chapter 3 were made consistent with denitions in other NFPA documents, syst
41、ematically aligned, and individually numbered. Paragraphs were revised to provide one mandatory requirement per section, subsection, or paragraph. Information that accompanied many of the requirements was moved to Annex A, Explanatory Material. Many exceptions were deleted or rephrased into mandator
42、y text.EMERGENCY AND STANDBY POWER SYSTEMS 110-2 2016 Edition Changes in the 2002 edition included denitive and broad-based requirements regarding electrical installations in accordance with NFPA 70 , National Electrical Code ; additional EPS controls and safeguards, such as alerting staff of impend
43、ing failure of the EPS to start; access and working space around the generator set; ventilation; energy converters; and EPSS testing requirements. The 2005 edition revised clearance distances between transfer switches and service equipment, revised the denitions for both lead-acid (ooded) and valve-
44、regulated lead-acid (VRLA) batteries, and changed the testing and maintenance section to include testing for spark-ignited engines that parallels those for diesel. Changes also included new annex material for diesel fuel testing and maintenance procedures, as well as transfer switches. Signicant rev
45、isions to the 2010 edition included the following: (1) Claried that the requirements to systems classed as optional standby is not mandatory (2) Claried that the operation testing and routine maintenance requirements of Chapter 8 cover both new and existing EPSSs (3) Aligned the denitions of transfe
46、r switch types with NFPA 111 and relevant product standards (4) Revised the Chapter 7 requirements for acceptance testing and differentiated what is required for new and unoccupied buildings and facilities from what is required for existing occupied buildings and facilities (5) Revised the Chapter 8
47、 requirements for operational test durations, loading conditions, and method of test initiation for the emergency power supply A noteworthy change for the 2013 edition was the deletion of the mandatory 96-hour fuel supply requirement (5.1.2) for seismic categories. The need for continued operation a
48、nd the minimum operational time without refueling is a design consideration or is directed by another standard. Several references to ASTM standards and additional annex material were added to address fuel quality and storage issues. The prime mover cooling and ventilation system construction and in
49、stallation requirements were reorganized. The 2016 edition prohibits the installation of an automatically actuated valve into the fuel lines, in order to prevent the inadvertent cutoff of fuel at critical times. The proper operation of systems connected in parallel has been addressed by adding acceptance testing and maintenance items for paralleling gear. In order to test all transfer switches, a requirement to rotate the transfer switch initiating the monthly test has been added where multiple transfer switches are installed. A new section consol
