ANSI UL 121201-2017 UL Standard for Safety Nonincendive Electrical Equipment for Use in Class I and II Division 2 and Class III Divisions 1 and 2 Hazardous (Classified) Locations (.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 121201 Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classied) Locations STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT

2、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, D

3、ivisions 1 and 2 Hazardous (Classied) Locations, UL 121201 Ninth Edition, Dated September 15, 2017 Summary of Topics This New Edition of ANSI/UL 121201 is being issued to include the following changes in requirements: Clauses 3.8, 13.1.2: Clarify the material and seal requirements for a hermetically

4、 sealed device. Clause 3.31, 5.1.1, 17: Expand permitted Class I, Division 2 types of protection to include oil immersion. Clause 4.4: Clarify that components of a product shall comply with the requirements for the components. Clause 5.1, 6.1: Clarify that Zone 2 and Zone 22 types of protection in a

5、ccordance with the ISA/UL 60079 or CSA 60079 series of standards as applicable are suitable means of Class I, Division 2 explosion protection. Clause 8.8.1, 18.2: Expand the permitted interconnection means for the plug or socket, and clarify the instructions required for connections on the exterior

6、of enclosure. Clause 8.8.2: Clarify the meaning of the phrase “in accordance with the associated location restrictions”. Clause 8.8.4, 18.2: Expand the use of connections on the exterior of enclosures to include Class II, Division 2 and Class III applications, and clarify the instructions required f

7、or connections on the exterior of enclosure. Clause 8.8.5: Clarify that the reference to “wiring methods identied in 8.8.2” includes “wiring methods and any applicable restrictions identied in 8.8.2”. Clause 9.2.3: Clarify that use of the international symbol as being only applicable to any necessar

8、y information and cautions in addition to markings otherwise required by Clause 9. Clause 9.2.4: Clarify the permitted reduction for small electrical equipment markings. Clause 10.2: Clarify that the small component requirement is not an option for Class II or Class III applications. Clause 13.1.5:

9、Clarify how the continuous operating temperature requirement is to be addressed for sealed devices. As noted in the Commitment for Amendments statement located on the back side of the title page, UL and CSA are committed to updating this harmonized standard jointly. The new requirements are substant

10、ially in accordance with Proposal(s) on this subject dated June 9, 2017. For further information regarding Summary of Requirements, please visit https:/ SEPTEMBER 15, 2017 UL 121201 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL THIS NIN

11、TH EDITION OF UL 121201 REPLACES THE EIGHTH EDITION OF ISA-12.12.01 DATED 2015. AS OF SEPTEMBER 15, 2022, ISA-12.12.01-2015 WILL BE WITHDRAWN. 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, mechan

12、ical 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 tness for any purpose. In no event will UL be liable for an

13、y special, incidental, consequential, indirect or similar damages, including 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 dama

14、ge. In no event shall ULs 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 ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, c

15、laim, 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. SEPTEMBER 15, 2017 UL 121201 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTIO

16、N WITHOUT PERMISSION FROM UL CSA Group CSA C22.2 No. 213-17 Third Edition Underwriters Laboratories Inc. UL 121201 Ninth Edition Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classied) Locations SEPTEMBER 15, 2017 ANSI/UL 121201-2

17、017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Canadian Standards Association (operating as “CSA Group”) and Underwriters Laboratories Inc. (UL). Comments or proposals for

18、revisions on any part of the standard may be submitted to CSA Group or UL at anytime. Revisions to this standard will be made only after processing according to the standards development procedures of CSA Group, and UL. CSA Group and UL will issue revisions to this standard by means of a new edition

19、 or revised or additional pages bearing their date of issue. ISBN 978-1-4883-0927-4 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. This Standard is subject to review ve years from the date of pub

20、lication, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquirescsagroup.org and include Proposal for change in the subject line: Standard designation (number); relevant clause, table, and/

21、or gure number; wording of the proposed change; and rationale for the change. To purchase CSA Group Standards and related publications, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2017 Underwriters Laboratories Inc. ULs Standards for Safet

22、y 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 the Ni

23、nth Edition. The most recent designation of ANSI/UL 121201 as an American National Standard (ANSI) occurred on September 15, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. The National Difference Page and IEC Forewo

24、rd are also excluded from the ANSI approval of IEC-based standards. Any other portions of this ANSI/UL standard that were not processed in accordance with ANSI/UL requirements are noted at the beginning of the impacted sections. Comments or proposals for revisions on any part of the Standard may be

25、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 1-888-853-3503.UL COPYRIGHTED MATERIAL N

26、OT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PREFACE 6 1 Scope .9 1.1 Introduction 9 1.2 Applicable to Class I and II, Division 2 and Class III, Divisions 1 and 2 locations .9 1.3 Applicable to associated nonincendive eld wiring apparatus .10 1.4 Applica

27、ble ambient conditions.10 1.5 Not applicable to specied ignition mechanisms .10 1.6 Not applicable to specic products.10 2 Reference publications .10 3 Denitions 10 4 General requirements 15 4.1 Requirements based upon normal operating conditions 15 4.2 General-purpose requirements 15 4.3 Considerat

28、ion of subsequent conditions following nonincendive eld wiring faults .15 4.4 Component standards .15 5 Requirements for Class I, Division 2 equipment .15 5.1 General 15 5.2 Enclosures .16 5.3 Fuses used in circuits subject to overloading .16 5.4 Fuses replaceable from outside of the enclosure 17 5.

29、5 Circuit breakers .17 5.6 Batteries and battery-powered equipment 17 6 Requirements for Class II, Division 2, Class III, Divisions 1 and 2 equipment17 6.1 Protection methods .17 6.2 Portable battery-powered equipment .18 6.3 Thermal ignition .19 6.4 Gasket and seal specication .19 7 Nonincendive ci

30、rcuits and nonincendive eld wiring 19 7.1 Spark ignition evaluation .19 7.2 Nonincendive circuit evaluation19 7.3 Evaluation by analysis .20 7.4 Associated nonincendive eld wiring apparatus .20 7.5 Nonincendive eld wiring apparatus .21 7.6 Nonincendive eld wiring circuit .21 7.7 Interconnection of n

31、onincendive eld wiring apparatus with associated nonincendive eld wiring apparatus.21 8 Normally nonarcing components .22 8.1 Components considered as nonarcing in normal operation .22 8.2 Connectors and plug-in components .22 8.3 Plug-in fuses that can be replaced in normal operating conditions .22

32、 8.4 Circuit breakers .22 8.5 Lamps .23 8.6 Connectors .23 8.7 Manually operated components .23 8.8 Connections on exterior of enclosure 23 9 Marking.25 9.1 General-purpose marking.25 9.2 Hazardous location related marking25 9.3 Information for battery-powered equipment .27 SEPTEMBER 15, 2017 CSA C2

33、2.2 NO. 213-17 UL 121201 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 9.4 Nonincendive eld wiring connections27 9.5 Optional zone marking (US only) 29 9.6 Alternate use of Division parameter designations for nonincendive eld wiring 30 9.

34、7 Connectors and lampholders30 9.8 Fuseholders 31 9.9 Circuit breakers .31 9.10 External plugs and sockets 31 9.11 Oil immersed equipment 31 9.12 Multiple warning markings .32 10 Surface temperature requirements 32 10.1 Determination of maximum surface temperature .32 10.2 Surface temperature 32 10.

35、3 Surface temperature of small components.33 11 Spark ignition testing of nonincendive circuits 33 11.1 Spark test apparatus .33 11.2 Ignition test conditions 34 12 Evaluation of nonincendive components .34 12.1 Ratings, preconditioning, and test for nonincendive components .34 12.2 Spark ignition t

36、est for nonincendive components .34 13 Evaluation of sealed devices .35 13.1 Ratings, construction, preconditioning, and test for sealed devices .35 13.2 Air leakage test 36 14 Evaluation of enclosed-break devices .36 14.1 Ratings, construction, preconditioning, and test for enclosed-break devices .

37、36 14.2 Tests for enclosed-break devices.37 15 Enclosure ingress protection for Class II and III 37 15.1 Construction and tests for enclosures .37 15.2 Dust-blast method 38 15.3 Circulating dust method .38 15.4 Atomized-water method .39 15.5 Gasket test 39 15.6 Temperature aging .40 16 Drop tests an

38、d impact tests 40 16.1 Portable equipment .40 16.2 Drop test for portable equipment .41 16.3 Impact test for xed or stationary equipment used in Class I location .41 16.4 Impact test for xed or stationary equipment used in Class II or Class III location 41 17 Evaluation of an oil immersed equipment

39、41 17.1 General .41 17.2 Enclosure .42 17.3 Oil requirements .42 17.4 Temperature test .42 18 Manufacturers instructions.42 18.1 Information in addition to that required by general-purpose standards.42 18.2 Information for connections on exterior of enclosure 43 18.3 Information for equipment with n

40、onincendive eld wiring connections .43 18.4 Information for component replacement or equipment disconnection44 18.5 Information for equipment containing nonincendive components .44 SEPTEMBER 15, 2017 CSA C22.2 NO. 213-17 UL 121201 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR D

41、ISTRIBUTION WITHOUT PERMISSION FROM UL Annex A Normative References (normative) Annex B Common Standards Safety Requirements for Electrical Equipment (informative) Annex C Suggested Warnings with French Equivalent (informative) SEPTEMBER 15, 2017 CSA C22.2 NO. 213-17 UL 121201 5UL COPYRIGHTED MATERI

42、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is the harmonized CSA Group and UL standard for Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classied) Locations. It is the Third

43、edition of CSA-C22.2 No. 213 and the Ninth edition of UL 121201. This edition of CSA-C22.2 No. 213 supersedes the previous edition published in 2016. This edition of UL 121201 supersedes the previous ISA-12.12.01-2015 edition published on August 21, 2015. This harmonized standard was prepared by the

44、 CSA Group and Underwriters Laboratories Inc. (UL). Efforts have been made to synchronize the UL edition number with that of the previous corresponding ISA standard with which this standard is now harmonized with CSA. As a result, one or more UL edition numbers have been skipped to align per the pre

45、vious ISA edition number. The ISA-12.12.01-2015 standard is being maintained until September 15, 2022 for reference purposes only. This standard is considered suitable for use for conformity assessment within the stated scope of the standard. This standard was reviewed by the CSA Integrated Committe

46、e on Hazardous Location Products, under the jurisdiction of the CSA Technical Committee on Industrial 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 America

47、n National Standards Institute (ANSI) as an American National Standard. Application of Standard Where reference is made to a specic number of samples 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

48、 its scope, 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 it considered equivalent to, an IEC standard. This standard

49、is published as an identical standard for CSA Group and UL. An identical standard is a standard that is exactly the same in technical content except for national differences resulting from conicts in codes and governmental regulations. Presentation is word for word except for editorial changes. Reasons for Differences From IEC There is no corresponding IEC standard. SEPTEMBER 15, 2017 CSA C22.2 NO. 213-17 UL 121201 6UL COPYRIGHTED MATERIAL NOT