UL 122701-2011 UL Standard for Safety Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids (Second Edition Reprint with revisions.pdf

1、 STANDARD FOR SAFETY Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR D

2、ISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids, UL 122701 Second Edition, Dated September 13, 2011 Summary of Topics Adoption of ANSI/ISA 122701, Standard for Requirements for P

3、rocess Sealing Between Electrical Systems and Flammable or Combustible Process Fluids as ANSI/UL 122701. This Standard is being issued to update the title page to reflect the reaffirmation of its ANSI approval. No changes in requirements have been made. As noted in the Commitment of Amendments state

4、ment located on the back side of the title page, UL and ISA are committed to updating this co-designated standard jointly after processing according to the standards development procedures by UL. Although this is the first-time publication of this Standard by UL, it is being published as the Second

5、edition in order to align ULs edition number with that of the ISA Standard. Please note that this is a simple reaffirmation of an existing ISA standard. These requirements are substantially in accordance with Proposals on this subject dated March 11, 2016. All rights reserved. No part of this public

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10、r system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, figures, 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 effect

11、ive date are located after the Standard, and are preceded by a “SUPERSEDED REQUIREMENTS“ notice. UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT

12、ION OR DISTRIBUTION WITHOUT PERMISSION FROM UL ISA - International Society of Automation ANSI/ISA 122701-2011 (R2016) Second Edition Underwriters Laboratories Inc. ANSI/UL 122701 Second Edition Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids Se

13、ptember 13, 2011 (Title Page Reprinted: June 6, 2016) ANSI/ISA/UL 122701-2011 (R2016) UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIST

14、RIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by ISA and Underwriters Laboratories Incorporated (UL). Comments or proposals for revisions on any part of the standard may be submitted to UL at any time. ISBN 978-1-941546-95-6 Copyright 2016 ISA All righ

15、ts reserved. Not for resale. Printed in the United States of America. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means (electronic mechanical, photocopying, recording, or otherwise), without the prior written permission of the Pu

16、blisher. The most recent designation of ANSI/ISA-122701 as a Reaffirmed American National Standard (ANSI) occurred on June 6, 2016. Copyright 2016 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in a

17、ny 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 the First Edition including revisions through June 6, 2016. The most recent designation of ANSI/UL 122701

18、 as a Reaffirmed American National Standard (ANS) occurred on June 6, 2016. 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 tim

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20、s, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. To purchase UL Standards, visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503. UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL