1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60079-17 Explosive Atmospheres Part 17: Electrical Installations Inspection and Maintenance STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION
2、 WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Explosive Atmospheres Part 17: Electrical Installations Inspection and Maintenance, UL 60079-17 Fifth Edition, Dated May 12, 2017 Summary o
3、f Topics Adoption of IEC 60079-17, Explosive Atmospheres Part 17: Electrical Installations Inspection and Maintenance (fth edition issued by IEC November 2013) as a new IEC-based UL standard, UL 60079-17 (IEC 60079-17:2013) with US Differences. The requirements are substantially in accordance with P
4、roposal(s) on this subject dated July 15, 2016 and February 17, 2017. 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
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8、y error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. MAY 12, 2017 UL 60079-17 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 12, 2017 UL 60079-17 tr2 No Text on This Pag
9、eUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 12, 2017 1 UL 60079-17 Standard for Explosive Atmospheres Part 17: Electrical Installations Inspection and Maintenance Fifth Edition May 12, 2017 This ANSI/UL Standard for Safety consists
10、of the Fifth Edition. The most recent designation of ANSI/UL 60079-17 as an American National Standard (ANSI) occurred on May 12, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page or Preface. The National Difference Page and IEC Foreword are also exclu
11、ded 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 Collaborative Standards Development System (CSDS) at https:/. ULs Standards for S
12、afety 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. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. A
13、NSI/UL 60079-17-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 12, 2017 UL 60079-17 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface (U
14、L) 6 National Differences 8 FOREWORD 9 INTRODUCTION . 11 1 Scope .12 2 Normative references .12 3 Terms and denitions 14 4 General requirements 16 4.1 Documentation 16 4.2 Qualication of personnel .17 4.3 Inspections .17 4.4 Periodic inspections .20 4.5 Continuous supervision by skilled personnel 21
15、 4.6 Maintenance requirements 24 4.7 Environmental conditions .26 4.8 Isolation of equipment .27 4.9 Earthing and equipotential bonding 30 4.10 Specic conditions of use .30 4.11 Movable equipment and its connections .30 4.12 Inspection schedules (Tables 1 to 3) 30 5 Additional inspection schedule re
16、quirements 33 5.1 Type of protection “d” Flameproof enclosure (see Table 1 and IEC 60079-1 UL 60079-1) .33 5.2 Type of protection “e” Increased safety (see Table 1 and IEC 60079-7 UL 60079-7) .34 5.3 Type of protection “i” Intrinsic safety (see Table 2 and IEC UL 60079-11) 35 5.4 Type of protection
17、“p” and “pD” Pressurized enclosure (see Table 3, IEC 60079-2 UL 60079-2 and IEC 61241-4) .38 5.5 Type of protection “n” (see Table 1 or 2 and IEC 60079-15) 39 5.6 Type of protection “t” and “tD” Protection by enclosure (see Table 1 and IEC 60079-31 UL 60079-31 and IEC 61241-1) 39 5.7 Types of protec
18、tion “m” and “mD” (encapsulation), “o”, (oil-immersion) “op” (optical radiation) and “q” (powder-lling) 39 6 Inspection tables .39 Annex A (informative) Typical inspection procedure for periodic inspections Annex B (normative informative) Knowledge, skills and competencies of responsible persons, te
19、chnical persons with executive function and operatives B.1 Scope 49 B.2 Knowledge and skills .49 B.2.1 Responsible persons and technical persons with executive function .49 B.2.2 Operative/technician (inspection and maintenance) 50 B.3 Competencies .50 MAY 12, 2017 UL 60079-17 3UL COPYRIGHTED MATERI
20、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL B.3.1 General 50 B.3.2 Responsible persons and technical persons with executive function .51 B.3.3 Operative Operator/technician .51 B.4 Assessment .51 Annex C (informative) Fitness-for-purpose assessment C.1 Backg
21、round .52 C.2 Need for a tness-for-purpose assessment 52 C.3 Approach .52 C.4 Ignition sources 52 C.5 Contents of the tness-for-purpose assessment .52 C.5.1 General 52 C.5.2 Scope 53 C.5.3 Equipment and its application .53 C.5.4 Description .53 C.5.5 Function of the product including the location .5
22、3 C.5.6 Specication 53 C.5.7 Standards compliance .54 C.5.8 Documents .54 C.5.9 Product sample .55 C.5.10 Equipment label 55 C.5.11 Training of personnel .55 Annex D (informative) Example of motor checks Bibliography MAY 12, 2017 UL 60079-17 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPROD
23、UCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 12, 2017 UL 60079-17 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface (UL) This UL Standard is based on IEC Publication 60079-17: fth edition Explosive atmosp
24、heres Part 17: Electrical installations inspection and maintenance. IEC publication 60079-17 is copyrighted by the IEC. Efforts have been made to synchronize the UL edition number with that of the corresponding IEC standard with which this standard is harmonized. As a result, one or more UL edition
25、numbers have been skipped to match that of the IEC edition number. The text, gures and tables of IEC Publication Explosive atmospheres Part 17: Electrical installations inspection and maintenance, IEC 60079-17, copyright November 2013 are used in this Standard with the consent of the IEC and the Ame
26、rican National Standards Institute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. ANSI should be contacted regarding the reproduction of any portion of the IEC material. The IEC Foreword and Introduction are not a part of the requirements of this Standard but are
27、 included for information purposes only. Copies of IEC Publication 60079-17 may be purchased from ANSI, 11 West 42nd Street, New York, New York, 10036, (212) 642-4900. Note Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the
28、responsibility of the users of the Standard to judge its suitability for their particular purpose. The following people served as members of STP 60079 and participated in the review of this standard: NAME COMPANY *B. Zimmermann, Chair R Stahl Inc. *T. Adam FM Approvals LLC R. Allen Honeywell Inc. D.
29、 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 any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and nongovernmental organiz
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31、ters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC Nation
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33、C National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itsel
34、f does not provide any attestation of conformity. Independent certication bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certication bodies. 6) All users should ensure that they h
35、ave the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature what
36、soever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced public
37、ations is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Stan
38、dard IEC 60079-17 has been prepared by subcommittee 31J: Classication of hazardous areas and installation requirements, of IEC technical committee 31: Equipment for explosive atmospheres. This fth edition cancels and replaces the fourth edition published in 2007 and constitutes a technical revision. MAY 12, 2017 UL 60079-17 9
