1、C22.2 No. 107.3-14Uninterruptible power systemsLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing va
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16、-800-463-6727 or 416-747-4044.Copyright 2014 Underwriters Laboratories Inc.ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standardshould be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regardingthose Standards shall r
17、emain the sole and exclusive property of UL.This ANSI/UL Standard for Safety consists of the Fifth Edition. The most recent designation of ANSI/UL1778 as an American National Standard (ANSI) occurred on June 10, 2014. ANSI approval for astandard does not include the Cover Page, Transmittal Pages, Ti
18、tle Page (front and back), or thePreface.Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time.Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative StandardsDevelopment System (CSDS) at http:/.To purchase UL Standards, visit C
19、omm 2000 at http:/m- call toll-free 1-888-853-3503.CONTENTSPreface .61 General 81.1 Scope .81.2 Definitions 101.3 General requirements 131.4 General conditions for tests .141.5 Components 141.6 Power interface .161.7 Markings and instructions 172 Protection from hazards 262.1 Protection from electri
20、c shock and energy hazards 262.6 Provisions for earthing and bonding .272.7 Overcurrent and earth fault protection in primary circuits .282.8 Safety interlocks 302.9 Electrical insulation 323 Wiring, connections, and supply .323.1 General 323.4 Disconnection from the mains supply 333.5 Interconnecti
21、on of equipment .344 Physical requirements 344.1 Stability 344.3 Design and construction 344.5 Thermal requirements 364.6 Openings in enclosures 375 Electrical requirements and simulated abnormal conditions .375.101 Short-circuit fault current withstand rating markings 375.2 Electric strength .385.3
22、 Abnormal operating and fault conditions 386 Connection to telecommunication networks .427 Connection to cable distribution systems 42AnnexesAnnex AAA (normative) Additional component requirementsAAA.1 Capacitor surge current test 44AAA.2 Oil-filled capacitor fault test .44AAA.3 Electrolytic capacit
23、or fault test 44AAA.4 Control devices .44AAA.4.2 Overload (control devices) .45AAA.4.3 Endurance (control devices) 46AAA.5 Static transfer switches 46AAA.5.1 General 46AAA.5.2 Isolating means .47AAA.5.3 Tests 47AAA.6 Transfer switches .47AAA.7 Load transfer .47JUNE 13, 2014 CSA C22.2 NO. 107.3-14 UL
24、 1778 3AAA.8 Bus bars .48AAA.8.13 Bus bar tests 51Annex BBB (informative) Examples of NORMAL LOAD conditionsBBB.1 General 52Annex CCC (informative) Safety symbols and their meaningsAnnex DDD (normative) Harmonic distortion testAnnex EEE (normative) Earthing and bonding (see 2.6.)EEE.1 General requir
25、ements 62EEE.2 Wiring terminals .63Annex FFF (normative) BACKFEED PROTECTION testFFF.1 General 68FFF.2 Pluggable type A UPS .68FFF.3 Permanently connected UPS .68FFF.4 Single fault conditions 68FFF.5 Air gap requirements for mechanical disconnect .70FFF.6 ELECTRONIC BACKFEED PROTECTION .71Annex GGG
26、(informative) Principles of BACKFEED PROTECTIONGGG.1 General .72GGG.2 Air gap requirements for mechanical disconnect 73GGG.3 Fault testing 73GGG.4 Relays 74GGG.5 Electronic protection 74GGG.6 Mechanical protection .74GGG.7 Control circuitry .74Annex HHH (normative) Ventilation of battery compartment
27、sAnnex III (normative) Standards for componentsIII.1 Component Standards .76JUNE 13, 2014CSA C22.2 NO. 107.3-14 UL 17784Annex JJJ (normative) French translations and markingsAnnex LLL (informative) Examples of US and Canadian regulatory requirementsAnnex MMM (normative) Test and construction require
28、ments for UPS with fault current ratingshigher than those specified in Table NNN.5MMM.1 Short-circuit current .88MMM.2 Maximum 100 000 ampere short-circuit current rating without short-circuit test .88MMM.2.1 Scope 88MMM.2.2 Construction .89MMM.2.3 Performance .102MMM.2.4 Marking 104Annex NNN (norma
29、tive) Short-circuit withstand ratingNNN.1 Rating verification and marking 106NNN.2 Short-time withstand current .106NNN.2.1 General 106NNN.2.2 Modes of operation 106NNN.3 Test procedure 106NNN.3.1 General application 106NNN.3.2 Sample selection 110NNN.3.3 Sample preparation 111NNN.3.4 Line (input) c
30、onnections 112NNN.3.5 Load (output) connections 113NNN.3.6 Short-circuit test procedure .115NNN.3.7 Test circuit calibration 116NNN.3.8 Short-circuit test .117NNN.4 Compliance criteria 119NNN.5 Markings 120NNN.5.1 UPS not requiring protection by a specific overcurrent device .120NNN.5.2 UPS dependen
31、t on use of a specific overcurrent device 121NNN.5.3 UPS dependent on use of a current-limiting device 121Annex OOOAnnex PPP (normative) Manufacturing and production testsPPP.1 Production-Line Dielectric Voltage-Withstand Test .125PPP.2 Production-Line Grounding-Continuity Test .126JUNE 13, 2014 CSA
32、 C22.2 NO. 107.3-14 UL 1778 5PrefaceThis is the harmonized CSA Group and UL Standard for Uninterruptible Power Systems (UPS). It is thethird edition of CSA C22.2 No. 107.314 and the fifth edition of UL 1778. This edition of CSA C22.2 No.107.314 supersedes the previous edition published in 2005 and 2
33、003. This edition of UL 1778supersedes the previous editions published in 2005, 2003, 1994, and 1989.This harmonized Standard was prepared by CSA Group and Underwriters Laboratories Inc. (UL). Theefforts and support of the National Electrical Manufacturers Association (NEMA) and Electro-FederationCa
34、nada (EFC) are gratefully acknowledged. The Standard is intended to be used in conjunction with theapplicable requirements of CAN/CSA-C22.2 No. 60950-1-07 and UL 60950-1, second edition, which isreferred to in this Standard as the Reference Document (RD). Compliance will be determined by therequirem
35、ents located in CAN/CSA-C22.2 No. 60950-1-07 and UL 60950-1, second edition, with deviationspresented in the third edition of CSA C22.2 No. 107.3 and the fifth edition of UL 1778.The requirements in this document have been developed from existing UL and CSA Group requirementsfor UPS together with IE
36、C 62040-1 (ed. 1.0).This standard is considered suitable for use for conformity assessment within the stated scope of thestandard.This Standard was reviewed by the CSA Subcommittee on Uninterruptible Power Systems, under thejurisdiction of the CSA Technical Committee on Industrial Products and the C
37、SA Strategic SteeringCommittee on Requirements for Electrical Safety, and has been formally approved by the CSA TechnicalCommittee.This Standard was processed and reviewed in accordance with the method of development, revision, andimplementation of UL Standards for safety.This Standard has been appr
38、oved by the American National Standards Institute (ANSI) as an AmericanNational Standard.NOTE: Although the intended primary application of this Standard is stated in its scope, it is important to note that itremains the responsibility of the users of the standard to judge its suitability for their
39、particular purpose.Level of HarmonizationThis Standard is published as an equivalent standard for CSA Group and UL. An equivalent standard isa standard that is substantially the same in technical content, except as follows: Technical nationaldifferences are allowed for codes and governmental regulat
40、ions as well as those recognized as being inaccordance with NAFTA Article 905, for example, because of fundamental climatic, geographical,technological, or infrastructural factors, scientific justification, or the level of protection that the countryconsiders appropriate. Presentation is word for wo
41、rd except for editorial changes.InterpretationsThe interpretation by the standards development organization (SDO) of an identical or equivalent standardis based on the literal text to determine compliance with the standard in accordance with the proceduralrules of the SDO. If more than one interpret
42、ation of the literal text has been identified, a revision is to beproposed as soon as possible to each of the SDOs to more accurately reflect the intent.JUNE 13, 2014CSA C22.2 NO. 107.3-14 UL 17786CSA Group Effective DateThe effective date for CSA Group will be announced through CSA Informs or CSA G
43、roup CertificationNotice.UL Effective DateA UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSIapproved standard. All products, including those previously evaluated by UL, must comply with the fifthedition of UL 1778, on a date to be determined.New prod
44、uct submittals to UL may be evaluated using the requirements in other existing applicableStandards, if requested in writing, until December 31, 2014.Products that were previously evaluated by UL to the requirements in other existing applicable standardsmay continue to be approved until December 31,
45、2014, without further investigation, provided nosignificant changes or revisions are made to such products.JUNE 13, 2014 CSA C22.2 NO. 107.3-14 UL 1778 7Uninterruptible Power Systems1 General1.1 ScopeReplace this clause of the RD with the following:1.1.1 Equipment covered by this StandardThis Standa
46、rd applies to UNINTERRUPTIBLE POWER SYSTEMS (UPS). The primary function of the UPS for thisStandard is to ensure continuity of an alternating power source. The UNINTERRUPTIBLE POWER SYSTEM may alsoserve to improve the quality of the power source by keeping it within specified characteristics. ThisSt
47、andard is applicable to movable, stationary, fixed, and built-in UPS for distribution systems up to 600 Va.c. This equipment is designed to be installed in accordance with the Canadian Electrical Code, Part I,CSA C22.1, or the National Electrical Code, ANSI/NFPA 70, and, unless otherwise identified,
48、 theStandard for the Protection of Electronic Computer Data-Processing Equipment, ANSI/NFPA 75.This Standard specifies requirements intended to ensure safety for the OPERATOR and, where specificallystated, for SERVICE PERSONNEL.This Standard is intended to reduce the risk of fire, electric shock, or
49、 injury to persons from installedequipment, both as a single unit or as a system of interconnected units, subject to installing, operating,and maintaining the equipment in the manner prescribed by the manufacturer.1.1.2 Additional requirementsIn addition to the requirements in this Standard, a UPS is to comply with the UPS-relevant requirements
