UL 60079-7 (ND)-2017 National Differences For UL 60079-7 Explosive atmospheres C Part 7 Equipment protection by increased safety e (Fifth Edition Reprint with Revisions Through and.pdf
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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60079-7Explosive atmospheres Part 7: Equipment protection by increased safety eUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PE
2、RMISSION FROM ULNational Differences ForUL 60079-7Explosive atmospheres Part 7: Equipment protection by increased safety eFifth EditionEdition Date: FEBRUARY 24, 2017Adoption of IEC 60079-7, Explosive Atmospheres - Part 7: Equipment Protection by IncreasedSafety e (fifth edition, issued by IEC June
3、2015) as a new IEC-based UL standard, UL 60079-7with US Differences.This document provides a single listing of the National Differences included in the UL adoption ofthe corresponding IEC standard.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, ortra
4、nsmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this standards document as is without warranty of any kind, either expressed or implied,including but not limited to, the implied warranties of merchantability or
5、 fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or theinability to use this standards document, even if UL or an author
6、ized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage ever exceed the pricepaid for this standards document, regardless of the form of the claim.Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify,
7、 and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright 2017 Underwriters Laborato
8、ries Inc.FEBRUARY 24, 2017NATIONAL DIFFERENCES FOR UL 60079-72UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single listing of the technical National Differences included in the UL adoptionof the corresponding
9、IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national difference type, andthese types are additionally noted in this document. The standard may not use all types of thesedeviations.D1 - These are deviations which are based on basic safety principles and
10、requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2 - These are deviations based on safety practices. These are deviations for IEC requirements that maybe acceptable, but adopting the IEC requirements would require considerable retesting or redesign
11、on themanufacturers part.DC - These are deviations based on the component standards and will not be deleted until a particularcomponent standard is harmonized with the IEC component standard.DE - These are deviations based on editorial comments or corrections.DR - These are deviations based on the n
12、ational regulatory requirements.Each national difference contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text of the national difference is to be applied to the base IECtext:Addition / Add - An addition entails adding a c
13、omplete new numbered clause, subclause, table, figure,or annex. Addition is not meant to include adding select words to the base IEC text.Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subclause, table,figure, or annex without any replacement text.Modification
14、 / Modify - A modification is an altering of the existing base IEC text such as the addition,replacement or deletion of certain words or the replacement of an entire clause, subclause, table, figure,or annex of the base IEC text.FEBRUARY 24, 2017 NATIONAL DIFFERENCES FOR UL 60079-7 3UL COPYRIGHTED M
15、ATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1DV.1 DR Modification of Clause 1, first paragraph to replace with the following:1DV.1.1 This part of IEC 60079 standard specifies the requirements for the design,construction, testing and ma
16、rking of electrical equipment and Ex Components with type ofprotection increased safety “e” intended for use in explosive gas atmospheres.1DV.2 DR Modification of Clause 1, eighth paragraph to replace with the following:1DV.2.1 This standard supplements and modifies the general requirements of IEC 6
17、0079-0UL 60079-0. Where a requirement of this standard conflicts with a requirement of IEC60079-0 UL 60079-0, the requirement of this standard takes precedence.1DV.3 DR Addition of 1DV.3.1Where references are made to other IEC 60079 standards, the referenced requirementsfound in these standards appl
18、y as modified by any applicable U.S. National Differences.2DV DR Modification of Clause 2 references to replace with the following:ANSI C78.1, Fluorescent Lamps Rapid Start Types Dimensional and Electrical CharacteristicsANSI C81.61, Electric Lamp BasesANSI C81.62, Lampholders for BasesANSI /NFPA 70
19、, National Electrical Code (NEC)IEC 60034-1, Rotating electrical machines Part 1: Rating and performanceIEC 60034-29, Rotating electrical machines Part 29: Equivalent loading and superpositiontechniques indirect loading to determine temperature riseIEC 60044-6, Instrument transformers Part 6: Requir
20、ements for protective current transformersfor transient performanceIEC 60061-1, Lamp caps and holders together with gauges for the control of interchangeabilityand safety. Part 1: Lamp capsIEC 60061-2, Lamp caps and holders together with gauges for the control of interchangeabilityand safety Part 2:
21、 LampholdersIEC 60064, Tungsten filament lamps for domestic and similar general lighting purposes Performance requirementsIEC 60068-2-6, Environmental testing Part 2-6: Tests Test Fc: Vibration (sinusoidal)IEC 60068-2-27:2008, Environmental testing Part 2-27: Tests Test Ea and guidance: ShockFEBRUAR
22、Y 24, 2017NATIONAL DIFFERENCES FOR UL 60079-74UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULIEC 60068-2-42, Environmental testing Part 2-42: Tests Test Kc: Sulphur dioxide test forcontacts and connectionsIEC 60079-0, Explosive atmospheres Pa
23、rt 0: Equipment General requirementsIEC 60079-1, Explosive atmospheres Part 1: Equipment protection by flameproof enclosures dIEC 60079-11, Explosive atmospheres Part 11: Equipment protection by intrinsic safety iIEC 60079-30-1, Explosive atmospheres Part 30-1: Electrical resistance trace heating Ge
24、neraland testing requirementsIEC/IEEE 60079-30-1, Explosive atmospheres Part 30-1: Electrical resistance trace heating General and testing requirementsIEC 60081, Double-Capped Fluorescent Lamps Performance SpecificationIEC 60085, Electrical insulation Thermal evaluation and designationIEC 60112, Met
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