UL-1203-2006.pdf
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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1203 ISBN 0-7629-1191-3 Explosion-Proof and Dust- Ignition-Proof Electrical Equipment for Use in Hazardous (Classifi ed) Locations UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
2、TION 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 Explosion-Proof and Dust-Ignition-Pr
3、oof Electrical Equipment for Use in Hazardous (Classifi ed) Locations, UL 1203 Fourth Edition, Dated September 15, 2006 Summary of Topics This new edition of ANSI/UL 1203 includes expanding the scope of UL 1203 so that the standard will be the primary document for the requirements for explosion-proo
4、f and dust-ignition-proof requirements, replacing the following hazardous (classifi ed) location product standards; Industrial Control Equipment for Use in Hazardous (Classifi ed) Locations, UL 698, Circuit Breakers and Circuit-Breaker Enclosures for Use in Hazardous (Classifi ed) Locations, UL 877,
5、 Outlet Boxes and Fittings for Use in Hazardous (Classifi ed) Locations, UL 886, Switches for Use in Hazardous (Classifi ed) Locations, UL 894, Electrically Operated Valves for Use in Hazardous (Classifi ed) Locations, UL 1002, Receptacle-Plug Combinations for Use in Hazardous (Classifi ed) Location
6、s, UL 1010. The following table lists the future effective dates with the corresponding reference. Future Effective DatesReferences December 30, 2009Paragraphs 14.1.1.14 and 14.1.1.15 December 30, 2011Paragraphs 14.1.1.14 and 14.1.1.15 as applied to Part V Part X inclusive The new requirements are s
7、ubstantially in accordance with ULs Proposal(s) on this subject dated December 2, 2005 and June 23, 2006. As indicated on the title page (page 1), this UL Standard for Safety is an American National Standard. Attention is directed to the note on the title page of this Standard outlining the procedur
8、es to be followed to retain the approved text of this ANSI/UL Standard. The UL Foreword is no longer located within the UL Standard. For information concerning the use and application of the requirements contained in this Standard, the current version of the UL Foreword is located on ULStandardsInfo
9、Net 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 respect to the requirements for that product and service, or if there are questions regarding the accuracy of this Standard. ULs St
10、andards 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 distribution diskette should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding
11、 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 transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL.
12、 SEPTEMBER 15, 2006 UL 1203tr1 UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM 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
13、. 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, inc
14、luding 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 ULs liability for any damage ever exceed the
15、price paid for this Standard, regardless of the form of the claim. UL will attempt to answer support requests concerning electronic versions of its Standards. However, this support service is offered on a reasonable efforts basis only, and UL may not be able to resolve every support request. UL supp
16、orts the electronic versions of its Standards only if they are used under the conditions and operating systems for which it is intended. ULs support policies may change from time-to-time without notifi cation. UL reserves the right to change the format, presentation, fi le types and formats, deliver
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20、was purchased, one copy of the Standard may be stored on a single LAN fi le-server, or on the permanent storage device of a multiple-user computer, or on an Intranet server. The number of concurrent users shall not exceed the number of users authorized. Electronic Standards are intended for on-line
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23、a UL Standard can make a copy of the page or pages being viewed for their own fair and/or practical internal use. 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 indic
24、ated in the note following the affected item. 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. New product submittals made prior to a specifi ed future effective date wil
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