UL 2251-2017 UL Standard for Safety Plugs Receptacles and Couplers for Electric Vehicles (Fourth Edition).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2251 Plugs, Receptacles, and Couplers for Electric Vehicles STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL CO

2、PYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Plugs, Receptacles, and Couplers for Electric Vehicles, UL 2251 Fourth Edition, Dated November 20, 2017 Summary of Topics This Fourth Edition of the Standard for Plugs, Re

3、ceptacles, and Couplers for Electric Vehicles, UL 2251, is being issued to incorporate the following: Revised Product Designations Clarication of Scope and Products Not Covered by UL 2251 Addition of New Denition for Grounding/Bonding Conductor Clarication to Ratings and Required Designation of Rati

4、ngs Clarication of the Fused Devices Requirement Clarication of Cable Requirements for the Impact Test Revised Requirements for Metallic Enclosures Revised Requirements for Pollution Degree Revision to the Temperature Rise Test New Requirements for Device Congurations in Relation to Pin Lengths and

5、Speed of Disconnection Reinstatement of the Overload Test Conditions for Connectors Not Intended for Current Interruption Revision to Address the Environmental Rating of Internal Parts Removal of National Differences for Canada The new/revised requirements are substantially in accordance with Propos

6、al(s) on this subject dated March 10, 2017 and September 15, 2017. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. U

7、L provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including

8、 loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price pai

9、d for this Standard, regardless of the form of the claim. NOVEMBER 20, 2017 UL 2251 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harml

10、ess from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. NOVEMBER 20, 2017 UL 2251 tr2UL COPYRIGHTED MATERI

11、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Association of Standardization and Certication NMX-J-678-ANCE-2017 Second Edition CSA Group CSA C22.2 No. 282-17 Second Edition Underwriters Laboratories Inc. UL 2251 Fourth Edition Standard for Plugs, Receptacles,

12、 and Couplers for Electric Vehicles November 20, 2017 ANSI/UL 2251-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Association of Standardization and Certication (ANCE), th

13、e Canadian Standards Association (operating as “CSA Group”), and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to ANCE, CSA Group, or UL at any time. Revisions to this standard will be made only after processing according to the

14、 standards development procedures of ANCE, CSA Group, and UL. CSA Group and UL will issue revisions to this standard by means of a new edition or revised 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

15、 of issue as the CSA Group and UL pages. Copyright 2017 ANCE Rights reserved in favor of ANCE. ISBN 978-1-4883-1359-2 2017 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. To purchase CSA Group Standard

16、s and related publications, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the

17、following information to inquirescsagroup.org and include Proposal for change in the subject line: Standard designation (number); relevant clause, table, and/or gure number; wording of the proposed change; and rationale for the change. Copyright 2017 Underwriters Laboratories Inc. ULs Standards for

18、Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of t

19、he Fourth Edition. The most recent designation of ANSI/UL 2251 as an American National Standard (ANSI) occurred on November 20, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. Comments or proposals for revisions on a

20、ny 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 Standards Development System (CSDS) at https:/. To purchase UL Standards, visit ULs Standards Sales Site at http:/ HowToOrder.aspx or call toll-free 1-888-853

21、-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .6 INTRODUCTION 1 Scope .8 2 Denitions8 3 Components9 4 Units of Measurement 10 5 Normative References 10 CONSTRUCTION 6 General.10 7 Congurations .10 7.1 General 10 7.2

22、Contact sequencing .11 8 Insulating Materials 11 8.1 Flammability 11 8.2 Electrical properties12 8.3 Thermal properties 13 9 Protection against Corrosion 13 10 Enclosures .14 10.1 General .14 10.2 Mechanical strength 14 10.3 Nonmetallic enclosures .14 10.4 Metallic enclosures .15 10.5 EV plug, vehic

23、le connector, and EV breakaway coupling enclosures15 10.6 Environmental enclosures .15 11 Current-Carrying Parts 15 12 Clearances and Creepage Distances16 13 Accessibility of Live Parts 17 14 Grounding .19 15 Grounding Connections20 16 Isolation .21 17 Terminal Parts21 18 Contacts .22 19 Assembly 22

24、 20 Separation of Circuits .23 20.1 Factory wiring23 20.2 Separation barriers .23 20.3 Field wiring 24 21 Devices Intended to Accommodate a Fuse 24 22 Cable Grip .25 23 Sharp Edges .26 PERFORMANCE 24 Representative Devices .26 25 Accelerated Aging Tests .28 25.1 Rubber compounds.28 NOVEMBER 20, 2017

25、 NMX-J-678-ANCE-2017 CSA C22.2 NO. 282-17 UL 2251 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 25.2 PVC compounds .29 26 Mold Stress Relief Test29 27 Moisture Absorption Resistance 29 28 Humidity Conditioning .30 29 Insulation Resistance

26、 Test .31 30 Dielectric Withstand Test 31 31 Dew Point Test .32 32 Conductor Secureness and Pullout Test .32 33 Cable Secureness Test33 34 Impact Test (EV Plugs, Vehicle Connectors, and EV Breakaway Couplings) .34 35 Crush Test .36 36 Vehicle Driveover Test 37 37 Withdrawal Force Test 38 37.1 EV plu

27、gs and EV receptacles, vehicle connectors, and vehicle inlets .38 37.2 EV breakaway couplings 39 38 Grounding Path Current Test.39 39 Short Circuit Test .40 39.1 General .40 39.2 Protective devices 40 39.3 Calibration of test circuits43 40 Strength of Insulating Base and Support Test 48 41 No-Load E

28、ndurance Test 49 42 Endurance with Load Test .49 43 Overload Test 50 44 Electromagnetic Test (Pilot Contacts) .52 45 Temperature Rise Test 53 46 Fuseholder Temperature Test 54 47 Surface Temperatures.55 48 Resistance to Arcing Test56 49 Polarization Integrity Test 56 50 Resistance to Corrosion Test.

29、56 51 Vibration Test 56 52 Accelerated Aging Gasket Test .57 53 Permanence of Marking Tests (Mexico and US) 58 54 Enclosure Tests for Environmental Protection 59 RATINGS 55 General60 MARKINGS 56 General61 56.1 Company name, catalog designation, electrical rating.61 56.2 Multiple factories .62 56.3 N

30、onconductive mounting means .62 56.4 Disconnecting use only .63 56.5 AC or DC only devices63 56.6 Cover grounded devices 63 56.7 Fused devices .63 56.8 Locking-type devices .63 56.9 EV receptacle marking location 64 56.10 Wiring information eld wiring terminals 64 NOVEMBER 20, 2017 NMX-J-678-ANCE-20

31、17 CSA C22.2 NO. 282-17 UL 2251 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 56.11 Overcurrent protection .65 56.12 Environmental enclosures 65 56.13 EV cable assembly markings .66 57 Identication and Marking of Terminals 66 57.1 General

32、 .66 57.2 Grounded and grounding 66 57.3 Other terminals 68 Annex A Reference Standards (Normative) Annex B French and Spanish Translations (Informative) B1 French and Spanish Translations .73 NOVEMBER 20, 2017 NMX-J-678-ANCE-2017 CSA C22.2 NO. 282-17 UL 2251 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED

33、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the harmonized ANCE, CSA Group, and UL Standard for Plugs, Receptacles, and Couplers for Electric Vehicles. It is the Second edition of NMX-J-678-ANCE, the Second edition of CSA-C22.2 No. 282, and the Fourth edition

34、of UL 2251. This edition of CSA-C22.2 No. 282 supersedes the previous edition published February 22, 2013. This edition of NMX-J-678-ANCE supersedes the previous edition published in 2013. This edition of UL 2251 supersedes the previous edition published February 22, 2013. This harmonized standard w

35、as prepared by the Association of Standardization and Certication (ANCE), CSA Group, and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Working Group for Electric Vehicle Couplers are gratefully acknowledged. This standard is considered suitable for use f

36、or conformity 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 Electrical VehicleSafety of Plugs,

37、Receptacles, and Couplers, under the jurisdiction of the CSA Technical Committee on Wiring 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 by the American National

38、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 considered a minimum quantity. Note: Although the intended primary application of this standard is stated in its scop

39、e, 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 IEC format but is not based on, nor is considered equivalent to, an IEC standard. This standard is published

40、 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 differences are allowed for codes and governmental regulations as well as those recognized as being in accordance wi

41、th NAFTA Article 905, for example, because of fundamental climatic, geographical, technological, or infrastructural factors, scientic justication, or the level of protection that the country considers appropriate. Presentation is word for word except for editorial changes. NOVEMBER 20, 2017 NMX-J-67

42、8-ANCE-2017 CSA C22.2 NO. 282-17 UL 2251 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Reasons for differences from IEC This standard provides general requirements for plugs, receptacles, and couplers for electric vehicles in accordance w

43、ith 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 codes. Therefore, this standard does not employ any IEC standard for base requirements. Interpretations The interpretation by the st

44、andards development organization of an identical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rulesofthestandardsdevelopmentorganization.Ifmorethanoneinterpretationoftheliteraltexthasbeen identied, a revision is to be

45、 proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. NOVEMBER 20, 2017 NMX-J-678-ANCE-2017 CSA C22.2 NO. 282-17 UL 2251 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODU

46、CTION 1 Scope 1.1 These requirements cover EV plugs, EV receptacles, vehicle inlets, vehicle connectors, and EV breakaway couplings, rated up to 800 amperes and up to 600 volts ac or dc. These devices are intended for use with conductive electric vehicle supply equipment (EVSE), and are intended to

47、facilitate the conductive connection from the EVSE to the vehicle. These devices are for use in either indoor or outdoor nonhazardous locations in accordance with Annex A, Ref. No. 1. 1.2 This Standard does not directly apply to any device that is not intended for use as described in 1.1. 1.3 In the

48、 text of this Standard, the term device refers to any product covered by this Standard. The letters EV refer to an electric vehicle, including plug-in hybrid vehicles, hybrid vehicles, electric vehicles, battery electric vehicles, and similar vehicles. 2 Denitions 2.1 For the purposes of this Standa

49、rd, the following denitions apply. 2.2 BREAKAWAY COUPLINGS A device located within a length of EV cable, between the electric vehicle supply equipment (EVSE) end and the vehicle connector end, that is intended to separate under a pull force, such that its separation will protect the end connections from a strain that could break wiring connections or rupture insulation. These devices are intended to be reconnectable, and may or may not be intende