1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60079-15 Explosive atmospheres Part 15: Equipment protection by type of protection n STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOU
2、T PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Explosive atmospheres Part 15: Equipment protection by type of protection n, UL 60079-15 Fourth Edition, Dated February 15, 2013 Summary of Topics
3、 This revision to ANSI/UL 60079-15, the Standard for Safety for Explosive Atmospheres Part 15: Equipment Protection by Type of Protection n, (Edition 4.0, Issued by the IEC January 2010) is being issued to update the title page to reect the reaffirmation of ANSI approval. No changes in requirements
4、have been made. As noted in the Commitment for Amendments statement 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. The requirements are substantially in acc
5、ordance with Proposal(s) on this subject dated March 3, 2017. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or tr
6、ansmitted 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 tness
7、 for any purpose. In no event will UL be liable for any 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 represent
8、ative has been advised of the possibility of such damage. 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 fr
9、om and against any loss, expense, liability, damage, claim, 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. THE STANDARDS TECHNICAL PANEL FOR UL 60079-15 HAS DETERM
10、INED THAT AS OF SEPTEMBER 1, 2018, EDITION 3 OF UL 60079-15 WILL BE WITHDRAWN AND MAY BE USED TO DETERMINE A PRODUCTS COMPLIANCE UNTIL THIS DATE. The following table summarizes the active editions of UL 60079-15, and lists the established withdrawal date for each edition of this standard. MAY 5, 201
11、7 UL 60079-15 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Standard Edition Status of Edition (Active/Withdrawn) Established Withdrawal Date for Each Standard Edition 3 Active September 1, 2018 4 Active Active until further notice Note
12、: These editions may be used to determine compliance for new or modied products until the dates shown. When the Standards Technical Panel has determined that all existing products shall be upgraded and assessed for compliance with a new standard edition, the edition number will be noted with an “*”
13、in this table. MAY 5, 2017 UL 60079-15 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL ISA The International Society of Automation ANSI/ISA 60079-15 (12.12.02)-2012 (R2017) Fourth Edition Underwriters Laboratories Inc. ANSI/UL 60079-15 Fo
14、urth Edition Explosive atmospheres Part 15: Equipment protection by type of protection n February 15, 2013 (Title Page Reprinted: May 5, 2017) ANSI/UL 60079-15-2013 (R2017)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendm
15、ents 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. Revisions to this standard will be made only after processing according to the standards development proced
16、ures by UL. ISBN 978-1-945541-53-7 Copyright 2017 ISA These materials are subject to copyright claims of IEC, ANSI, and ISA. All rights reserved. Not for resale. Printed in the United States of America. No part of this publication may be reproduced in any form, including an electronic retrieval syst
17、em, without the prior written permission of ISA. All requests pertaining to this standard should be submitted to ISA. The most recent designation of ANSI/ISA 60079-15 as a Reaffirmed American National Standard (ANSI) occurred on May 5, 2017. Copyright 2017 Underwriters Laboratories Inc. ULs Standard
18、s for Safety 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 consist
19、s of the Fourth edition including revisions through May 5, 2017. The most recent designation of ANSI/UL 60079-15 as a Reaffirmed American National Standard (ANS) occurred on May 5, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or
20、the Preface. The National Difference Page and IEC Foreword are also excluded from the ANSI approval of IEC-based standards. 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 ULs On-Line Collabor
21、ative 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 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS General Notes
22、6 Preface (ISA) . 7 National Differences . 11 FOREWORD . 12 1 Scope 14 2 Normative references 20 3 Terms and denitions 25 4 General 27 4.1 Equipment grouping and temperature classication 27 4.2 Potential ignition sources .27 5 Temperatures .27 5.1 Maximum surface temperature .27 5.2 Small components
23、 .28 6 Requirements for electrical equipment .28 6.1 General .28 6.2 Opening times 28 6.3 Minimum degree of protection .28 6.4 Clearances, creepage distances and separations 29 6.5 Electric strength .36 7 Connection facilities and terminal compartments 37 7.1 General .37 7.2 Field wiring connections
24、 38 7.3 Factory connections .40 8 Supplementary requirements for non-sparking electrical rotating machines .41 8.1 General .41 8.2 Machine enclosure 42 8.3 Terminal boxes 42 8.4 Conduit stopping boxes, cable sealing and dividing boxes 42 8.5 Connection facilities for external conductors 42 8.6 Neutr
25、al point connections .42 8.7 Radial air gap .43 8.8 Rotor cages 44 8.9 Stator winding insulation system .46 8.10 Surface temperature limitation .46 9 Supplementary requirements for non-sparking fuses and fuse assemblies 47 9.1 Fuses 47 9.2 Temperature class of equipment 48 9.3 Fuse mounting 48 9.4 F
26、use enclosures .48 9.5 Replacement fuse identication .48 10 Supplementary requirements for non-sparking plugs and sockets 48 10.1 Plugs and sockets for external connections .48 10.2 Maintaining degree of protection (IP code) .51 10.3 Sockets that do not have plugs inserted in normal operation 51 11
27、Supplementary requirements for non-sparking luminaires 51 11.1 General .51 FEBRUARY 15, 2013 ANSI/ISA 60079-15 (12.12.02)-2012 ANSI/UL 60079-15 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 11.2 Construction 51 11.3 Luminaires for tubular
28、 uorescent bi-pin lamps 57 11.4 Other equipment containing light sources 60 12 Supplementary requirements for equipment incorporating non-sparking cells and batteries .60 12.1 General .60 12.2 Categorization of cells and batteries .60 12.3 General requirements for cells and batteries of types 1 and
29、2 62 12.4 Charging of type 1 and type 2 cells and batteries .64 12.5 Requirements for type 3 secondary batteries .65 12.6 Verication and tests 69 13 Supplementary requirements for non-sparking low power equipment 69 14 Supplementary requirements for non-sparking current transformers 70 15 Other non-
30、sparking electrical equipment 71 16 Generalsupplementaryrequirementsforequipmentproducingarcs,sparksorhotsurfaces .71 17 Supplementary requirements for enclosed-break devices and non-incendive components producing arcs, sparks or hot surfaces 71 17.1 Type testing .71 17.2 Ratings 72 17.3 Constructio
31、n of enclosed-break devices 72 18 Supplementary requirements for hermetically sealed devices producing arcs, sparks or hot surfaces 73 19 Supplementary requirements for sealed devices producing arcs, sparks or hot surfaces .73 19.1 Non-metallic materials 73 19.2 Opening 74 19.3 Internal spaces .74 1
32、9.4 Handling .74 19.5 Gasket and seals .74 19.6 Type tests 75 20 Supplementary requirements for restricted-breathing enclosures protecting equipment producing arcs, sparks or hot surfaces .75 20.1 General .75 20.2 Constructional requirements 75 20.3 Temperature limitation .81 20.4 Additional require
33、ments for restricted breathing luminaires .81 21 General information on verication and tests .82 22 Type tests 82 22.1 Representative samples 82 22.2 Test conguration .82 22.3 Tests for enclosures on which the type of protection depends 82 22.4 Tests for enclosed break devices and non incendive comp
34、onents .83 22.5 Tests for sealed devices .85 22.6 Type test requirements for restricted-breathing enclosures .88 22.7 Test for screw lampholders .89 22.8 Test for starter holders for luminaires 90 22.9 Tests for electronic starters for tubular uorescent lamps and for ignitors for high pressure sodiu
35、m or metal halide lamps .90 22.10 Test for wiring of luminaires subject to high-voltage impulses from ignitors . .92 22.11 Mechanical shock test for batteries 92 22.12 Insulation resistance test for batteries .93 22.13 Additional ignition tests for large or high-voltage machines .94 23 Routine veric
36、ations and tests .95 23.1 General .95 23.2 Specic routine tests 95 FEBRUARY 15, 2013 ANSI/ISA 60079-15 (12.12.02)-2012 ANSI/UL 60079-15 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 24 Marking 97 24.1 General .97 24.2 Additional marking f
37、or batteries .98 24.3 Examples of marking .98A 25 Documentation 100 26 Instructions 101 Annex A (informative) Application, installation, and testing considerations for Ex “nA” asynchronous machines A.1 Surface temperature 102 A.2 Starting 102 A.3 Rated voltage and surface discharges .103 Bibliograph
38、y AUGUST 2, 2013 ANSI/ISA 60079-15 (12.12.02)-2012 ANSI/UL 60079-15 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL General Notes This is the common ISA and UL Standard for Explosive atmospheres Part 15: Equipment protection by type of prot
39、ection n. It is the Fourth edition of ANSI/ISA 60079-15 (superseding ANSI/ISA 60079-15 (12.12.02)-2009) and the Fourth edition of ANSI/UL 60079-15. This document is a modication of the IEC document and includes U.S. deviations encompassing both additions and deletions of information. ANSI/ISA 60079-
40、15 and ANSI/UL 60079-15 contain identical requirements, and identical publication dates. The presentation and format of the standards material may differ between the two published standards. This common Standard was prepared by the International Society of Automation (ISA) and Underwriters Laborator
41、ies Inc. (UL). Note: Although the intended primary application of this Standard is stated in 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 adopts the IEC t
42、ext with deviations. The requirements are presented in different formats. The ISA version of the standard illustrates the national differences from the IEC text through the use of legislative text (strike-out and underline). The UL version of the standard illustrates national differences immediately
43、 following the IEC text. National differences between the UL version and the ISA version shall be word for word except for editorial changes. Interpretations The interpretation by the SDO of an identical or equivalent standard shall be based on the literal text to determine compliance with the stand
44、ard in accordance with the procedural rules of the SDO. If more than one interpretation of the literal text has been identied, a revision shall be proposed as soon as possible to each of the SDOs to more accurately reect the intent. The following people served as members of STP 60079 and participate
45、d in the review of this Reaffirmation of the standard: MAY 5, 2017 ANSI/ISA 60079-15 (12.12.02)-2012 ANSI/UL 60079-15 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NAME COMPANY *B. Zimmermann, Chair R Stahl Inc. *T. Adam FM Approvals LLC
46、R. Allen Honeywell Inc. D. Ankele UL LLC S. Bihler-Lopez CML Inc. S. Blais Appleton Group K. Boegli KBB Consulting R. Brownlee Pepperl + Fuchs Inc. D. Burns Shell P&T Innovation / R&D R. Chalmers Industrial Scientic Corp. *C. Coache National Fire Protection Association D. Cook Shelby County Departme
47、nt of Development Services M. Coppler Det Norske Veritas Certication Inc. D. Mario Consultant T. Dubaniewicz NIOSH G. Edwards Rosemount Inc. M. Ehrmann R Stahl Inc M. Egloff Montana Tech, University of Montana D. El Tawy Solar Turbines Inc. *A. Engler Det Norske Veritas DNV Z. Fosse DEKRA Certicatio
48、n Inc G. Gurinder Gurinder Garcha Consulting D. Grady Talema Group R. Holub DuPont P. House Thermon Mfg. Co. *B. Johnson Thermon Mfg. Co. R. Johnson Source IEC *P. Kelly UL LLC S. Kiddle ABB Inc *P. Kovscek Industrial Scientic Corp. A. Kreider Phoenix Contact Development & Manufacturing Inc. *J. Kun
49、tscher Thermon Mfg Co. W. Lawrence FM Approvals LLC E. Leubner Eatons Crouse-Hinds Business W. Lowers WCL Corp. *N. Ludlam FM Approvals Ltd. R. Martin USCG *R. Masek CSA Group E. Massey Baldor Electric Co. W. McBride Northern Electric Co. T. Michalski Killark Electric Mfg. Co. J. Miller Detector Electronics Corp. *O. Murphy Honeywell Inc. D. Nachtigall Rockwell Automation D. Nedorostek Bureau of Safety & Environmental Enforcement (BSEE) A. Page Bud Page Consultan
