UL 2231 1 Personnel Protection Systems for Electric Vehicle EV Supply Circuits General Requirements UL Standard for Safety for Personnel Protection Systems for Electric Vehicle EV Supply Circuits General Requirements UL 2231 1 Second Edition Dated September 7 2012 Summary of Topics This new edition of the Standard for Safety for Personnel Protection Systems for Electric Vehicle EV Supply Circuits General Requirements UL 2231 1 is being issued as a Trinational Standard with ANCE and CSA The new and revised requirements are substantially in accordance with Proposal s on this subject dated February 17 2012 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 UL 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 fi tness for any purpose In no event will UL be liable for any special incidental consequential indirect or similar damages including loss of profi ts 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 UL s liability for any damage ever exceed the price paid for this Standard regardless of the form of the claim Users of the electronic versions of UL s Standards for Safety agree to defend indemnify and hold UL harmless from and against any loss expense liability damage claim or judgment including reasonable attorney s fees resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchaser s computer system The requirements in this Standard are now in effect except for those paragraphs sections tables fi gures and or other elements of the Standard having future effective dates as indicated in the preface The prior text for requirements that have been revised and that have a future effective date are located after the Standard and are preceded by a SUPERSEDED REQUIREMENTS notice SEPTEMBER 7 2012 UL 2231 1tr1 SEPTEMBER 7 2012 UL 2231 1tr2 No Text on This Page Association of Standardization and Certifi cation NMX J 668 1 ANCE First Edition CSA Group CSA C22 2 No 281 1 12 First Edition Underwriters Laboratories Inc UL 2231 1 Second Edition Standard for Safety for Personnel Protection Systems for Electric Vehicle EV Supply Circuits General Requirements September 7 2012 ANSI UL 2231 1 2012 Commitment for Amendments This standard is issued jointly by the Association of Standardization and Certifi cation ANCE the 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 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 of issue as the CSA Group and UL pages Copyright 2012 ANCE Rights reserved in favor of ANCE ISBN 978 1 55491 814 0 2012 Canadian Standards Association 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 Standards and related publications visit CSA Group s 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 following information to inquires csagroup org and include Proposal for change in the subject line Standard designation number relevant clause table and or fi gure number wording of the proposed change and rationale for the change Copyright 2012 Underwriters Laboratories Inc UL s Standards for Safety are copyrighted by UL Neither a printed nor electronic copy of a Standard should be altered in any way All of UL s 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 the Second Edition The most recent designation of ANSI UL 2231 1 as an American National Standard ANSI occurred on September 7 2012 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 any part of the Standard may be submitted to UL at any time Proposals should be submitted via a Proposal Request in UL s On Line Collaborative Standards Development System C