UL-1741-1999.pdf
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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1741 ISBN 0-7629-0421-6 Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FUR
2、THER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Underwriters Laboratories Inc. (UL) 333 Pfi ngsten Road Northbrook, IL 60062-2096 UL Standard for Safety for Inverters, Converters,
3、Controllers and Interconnection System Equipment for Use With Distributed Energy Resources, UL 1741 First Edition, Dated May 7, 1999 Revisions: This Standard contains revisions through and including November 7, 2005. Summary of Topics: The revisions dated November 7, 2005 include a revised title. Th
4、e previous title, Inverters, Converters, and Controllers for Use in Independent Power Systems, has been revised to Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources. In addition, the revisions dated November 7, 2005 were issued to incor
5、porate the following revised requirements: 1. Clarifi cation of the Inclusion of Interconnection Equipment for Stand-Alone and Utility-Connected Systems 2. Clarifi cation of Grounding Requirements 3. Clarifi cation of Converter Requirements 4. Clarifi cation of Ground-Fault Detector/Interrupter (GFD
6、I) Requirements for Photovoltaic Equipment, Including Revisions in Accordance with the NEC 5. Revisions in Accordance with the NEC Including a Clarifi cation of Screw Engagement, Markings for Conductor Temperature Limitations, and the Deletion ofNaturalfrom Natural Gray 6. Replacement of the Utility
7、-Interconnection Requirements and Tests with References to the Standard for Interconnecting Distributed Resources with Electric Power Systems, IEEE 1547, and the Standard for Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems, IEEE 1547.1 Anno
8、uncement Bulletin(s): This Standard contains the announcement bulletin(s) dated May 7, 1999. The announcement bulletin is located at the end of the Standard. UL Standards for Safety are developed and maintained in the Standard Generalized Markup Language (SGML). SGML - an international standard (ISO
9、 8879-1986) - is a descriptive markup language that describes a documents structure and purpose, rather than its physical appearance on a page. Due to formatting differences resulting from the use of ULs new electronic publishing system, please note that additional pages (on which no requirements ha
10、ve been changed) may be included in revision pages due to relocation of existing text and reformatting of the Standard. Text that has been changed in any manner is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an
11、effective date note indicating the date of publication or the date on which the changed requirement becomes effective. NOVEMBER 7, 2005 UL 1741tr1 UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL The following table lists the future effective
12、 dates with the corresponding references. Future Effective DateReferences May 7, 20071.1A, 5.1.5, 30.1.13, 31.1, 31.2, Table 31.1, 31.9, 31.10, Section 32A, 38.2, 39.1 39.6, Section 40, 45.1.1, 45.2.2, 45.4.2, Table 45.1, Table 45.2, 45.4.3, Section 45.5, 46.1.1, Section 46.2 Section 46.4, Section 4
13、7.8, Table 62.1, 63.4, 63.5, 63.15, 64.5, 64.15, 64.16, 65.2.1, 65.2.8, 66.3, and 66.4 The new requirements are substantially in accordance with ULs Proposal(s) on this subject dated July 5, 2005. The UL Foreword is no longer located within the UL Standard. For information concerning the use and app
14、lication of the requirements contained in this Standard, the current version of the UL Foreword is located on ULStandardsInfoNet at: http:/ The master for this Standard at ULs Northbrook Office is the official document insofar as it relates to a UL service and the compliance of a product with respec
15、t to the requirements for that product and service, or if there are questions regarding the accuracy of this Standard. ULs Standards for Safety are copyrighted by UL. Neither a printed copy of a Standard, nor the distribution diskette for a Standard-on-Diskette and the fi le for the Standard on the
16、distribution diskette 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. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or trans
17、mitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. Revisions of UL Standards for Safety are issued from time to time. A UL Standard for Safety is current only if it incorporates the most recently adopted revisions. UL provide
18、s 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
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22、d formats, and the like of both its printed and electronic Standards without prior notice. NOVEMBER 7, 2005 UL 1741tr2 -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Purchasers of the electronic versions of ULs Standards for Safety ag
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