1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2231-1 Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits: General Requirements STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIST
2、RIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits: General Requirements, UL 2231-1 Second Edition, Dated Septe
3、mber 7, 2012 Summary of Topics This revision to ANSI/UL 22311 is being issued to incorporate the following changes: Revision to Require a Ground Monitor/Interrupter Circuit for Hardwired and Cord- Connected EVSE (Deletion of Cable Flexing Test, Section 37 of UL 2231-2) Clarication of Requirements fo
4、r Isolation Monitors for EV Charging Equipment Additional Reference to CSA C22.2 No. 0 Addition of Denition for Programmable Components Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The new and revised requireme
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10、r2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Association of Standardization and Certication NMX-J-668-1-ANCE Second Edition CSA Group CAN/CSA-C22.2 No. 281.112 First Edition Underwriters Laboratories Inc. UL 2231-1
11、Second Edition Standard for Safety for Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits: General Requirements September 7, 2012 (Title Page Reprinted: August 26, 2016) ANSI/UL 2231-1-2016 Approved byUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION
12、 WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Association of Standardization and Certication (ANCE), the Canadian Standards Association (operating as “CSA Group”), and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part
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14、sed or additional pages bearing their date of issue. ANCE will incorporate the same revisions into a new edition of the standard bearing the same date of issue as the CSA Group and UL pages. Copyright 2016 ANCE Rights reserved in favor of ANCE. ISBN 978-1-55491-814-0 2012 CSA Group All rights reserv
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21、M UL CONTENTS PREFACE 4 1 Scope .6 2 Denitions 7 3 Normative References 10 4 General .10A 4.1 Basis of requirements 10A 4.2 Application of requirements .11 5 Protective Elements 11 5.1 Charging circuit-interrupting device 11 5.2 Grounding monitor/interrupter .12 5.3 Isolation monitor/interrupter .12
22、 6 Protective Systems .13 6.1 Grounded systems 13 6.2 Isolated circuits .15 Annex A Reference Standards (Normative) A1 Reference Standards .17 AUGUST 26, 2016 NMX-J-668-1-ANCE CAN/CSA-C22.2 NO. 281.112 UL 2231-1 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
23、 PERMISSION FROM UL PREFACE This is the harmonized ANCE, CSA Group, and UL standard for Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits: General Requirements. It is the Second edition of NMX-J-668-1-ANCE, the First edition of CAN/CSA-C22.2 No. 281.1, and the Second edition of
24、UL 22311. This harmonized standard has been jointly revised on August 26, 2016. For this purpose, CSA Group and UL are issuing revision pages dated August 26, 2016, and ANCE is issuing a new edition dated August 26, 2016. This harmonized standard was prepared by the Association of Standardization an
25、d Certication (ANCE), CSA Group, and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Working Group for Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits are gratefully acknowledged. This standard is considered suitable for use for conf
26、ormity assessment within the stated scope of the Standard. The present Mexican Standard was reviewed and approved by the Comit de Normalizacin de la Asociacin de Normalizacin y Certicacin, A.C., CONANCE. This standard was reviewed by the CSA Subcommittee on Electric Vehicle Personal Protection Syste
27、ms for Supply Circuits, under the jurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee. This standard has been approved as a National Standard o
28、f Canada by the Standards Council of Canada (SCC). This standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. Application of Standard Where reference is made to a specic number of specimens to be tested, the specied number is to be considere
29、d a minimum quantity. Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level of harmonization This standard uses the
30、IEC format but is not based on, nor is considered equivalent to, an IEC standard. This standard is published as an equivalent standard for ANCE, CSA Group, and UL. An equivalent standard is a standard that is substantially the same in technical content, except as follows: Technical national differen
31、ces are allowed for codes and governmental regulations as well as those recognized as being in accordance with NAFTA Article 905, for example, because of fundamental climatic, geographical, technological, or infrastructural factors, scientic justication, or the level of protection that the country c
32、onsiders appropriate. Presentation is word for word except for editorial changes. AUGUST 26, 2016 NMX-J-668-1-ANCE CAN/CSA-C22.2 NO. 281.112 UL 2231-1 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Reasons for differences from IEC This sta
33、ndard provides general requirements for personnel protection systems for electric vehicle supply circuits for use in accordance with the electrical installation codes of Canada, Mexico, and the United States. At present there is no IEC standard for these products for use in accordance with these cod
34、es. Therefore, this standard does not employ any IEC standard for base requirements. Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the proce
35、dural rules of the standards development organization. If more than one interpretation of the literal text has been identied, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. AUGUST 26, 2016 NMX-J-668-1-ANCE CAN/
36、CSA-C22.2 NO. 281.112 UL 2231-1 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits: General Requirements 1 Scope 1.1 These requirements cover devices and systems intended f
37、or use in accordance with Annex A, Ref. No. 1, to reduce the risk of electric shock to the user from accessible parts, in grounded or isolated circuits for charging electric vehicles. These circuits are external to or on board the vehicle. 1.2 The devices and systems covered by these requirements ar
38、e compatible with the designs of charging systems and vehicles where use is intended and are rated accordingly. To assure compatibility, the charging system, the vehicle, or both, are in accordance with the features contained in 1.3 1.5. 1.3 The type of vehicle covered by these requirements, includi
39、ng all accessible conductive parts on the vehicle, has one or more of the following: a) Provision for the connection of an equipment grounding conductor during battery charging, unless the vehicle has a system of reinforced or double insulation or all of the circuitry on the vehicle is electrically
40、isolated from the supply circuit, b) Provision for the connection of ground-monitoring conductors, where required, c) Reinforced insulation, or is double-insulated from the supply circuit, or d) No direct connection between current-carrying conductors and the vehicle chassis. 1.4 These requirements
41、cover devices and systems where the grounding path impedance of the charging system to the vehicle is less than or equal to the impedance of the ungrounded conductor or conductors. 1.5 These requirements cover devices and systems where a continuous current less than 70 mA RMS is available from any a
42、ccessible part of the charging system. 1.6 Devices covered by these requirements are intended to interrupt the electric circuit to the load when: a) A fault current to ground exceeds some predetermined value that is less than that required to operate the overcurrent protective device of the supply c
43、ircuit, b) The grounding path becomes open-circuited or becomes an excessively high impedance, or c) A path to ground is detected on an isolated (ungrounded) system. 1.7 These devices and systems are intended to be applied on electrical systems or include derived systems that are: a) Either end-grou
44、nded or centrally grounded when the operating voltage is 150 Vrms or less, b) Centrally grounded when the operating voltage is greater than 150 Vrms, or c) Isolated (ungrounded). SEPTEMBER 7, 2012 NMX-J-668/1-ANCE CSA C22.2 NO. 281.112 UL 2231-1 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
45、PRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.8 Charging circuit-interrupting devices covered by these requirements are investigated for their ability to provide protection based on: a) The type of current (60 Hz AC, DC, a combination of AC and DC, or AC at frequencies greater than 60 Hz)
46、present in the circuit to be protected, and b) Voltage. 1.9 In Mexico and the US, these requirements do not cover ground-fault circuit-interrupters (GFCIs) intended for use as personnel protection in accordance with the national electrical codes on grounded 120 Vrms or 127 Vrms to ground, 60 Hz circ
47、uits. Such devices are covered under Annex A, Ref. No. 2. In Canada, these requirements do not cover ground-fault circuit-interrupters (GFCIs) in accordance with the national electrical code on grounded 120 Vrms or 127 Vrms to ground, 60 Hz circuits. Such devices are covered under Annex A, Ref. No.
48、2. 1.10 This Standard includes the Scope, Denitions, and Description of Requirements, including the required features of protection systems. The standards in Annex A, Ref. No. 3 contain the Performance and Construction requirements for protective devices that would become a part of a charging system
49、. 2 Denitions 2.1 For the purposes of this Standard, the following denitions apply. 2.2 ACCESSIBLE PART A part so located that it is capable of being contacted by a person, either directly or by means of an accessibility probe. 2.3 BASIC INSULATION The insulation required for the proper functioning of a device, and for basic protection against electrical hazard. 2.4 CENTRALLY LOCATED GROUND A system connection to ground so located that
