1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60079-11Explosive Atmospheres - Part 11: Equipment Protection by Intrinsic Safety iUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOU
2、T PERMISSION FROM ULNational Differences ForUL 60079-11Explosive Atmospheres - Part 11: Equipment Protection by Intrinsic Safety iEdition: 6Edition Date: February 15, 2013This revision to ANSI/UL 60079-11 is an adoption of IEC 60079-11, the Standard for Safety forExplosive Atmospheres Part 11: Equip
3、ment Protection by Intrinsic Safety i, is being issuedto incorporate the following:Revisions to Update ANSI/UL 2481 ReferencesClarification of Figure 2Revisions for Non-Intrinsically Safe Circuit Connections of Galvanically SeparatingComponentsAs noted in the Commitment for Amendments statement loca
4、ted on the back side of the titlepage, UL and ISA are committed to updating this bi-national standard jointly. However, therevision pages dated March 28, 2014 will not be issued by ISA as revision pages but asan update to their standard.This document provides a single listing of the National Differe
5、nces 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, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL pr
6、ovides 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 fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,incl
7、uding 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 authorized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage ever excee
8、d 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, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees)
9、 resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright Underwriters Laboratories Inc.MARCH 28, 2014NATIONAL DIFFERENCES FOR UL UL 60079-112UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIB
10、UTION WITHOUT PERMISSION FROM ULMARCH 28, 2014 NATIONAL DIFFERENCES FOR UL UL 60079-11 3UL 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 ado
11、ptionof the corresponding 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 ba
12、sic safety principles and 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 considera
13、ble retesting or redesign 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
14、 deviations based on the national 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 a
15、ddition entails adding a complete 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 rep
16、lacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as theaddition, replacement or deletion of certain words or the replacement of an entire clause,subclause, table, figure, or annex of the base IEC text.MARCH 28, 2014NATIONAL DIFFERENCES FOR UL UL
17、60079-114UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1DV.1 DR Modification of Clause 1, first paragraph as follows:1DV.1.1 Replace part of IEC 60079 with standard.Table 1DV DR Modification of Table 1DV NOTE to replace w
18、ith the following:Table 1DV Applicability of specific clauses of IEC 60079-0Clause or subclause of IEC 60079-0 IEC 60079-0 clause application to IEC 60079-11Intrinsically safe apparatus AssociatedapparatusEd. 5.0 Ed. 6.0 Clause / Subclause titleGroup I andGroup IIGroup III(informative) (informative)
19、 (normative)1 1 Scope Applies Applies Applies2 2 Normative references Applies Applies Applies3 3 Terms and definitions Applies Applies Applies4 4 Equipment grouping Applies Applies Applies4.1 4.1 Group I Applies Excluded Applies4.2 4.2 Group II Applies Excluded Applies4.3 4.3 Group III Excluded Appl
20、ies Applies4.4 4.4 Equipment for a particularexplosive atmosphereApplies Applies Applies5.1 5.1 Environmental influences Applies Applies Applies5.1.1 5.1.1 Ambient temperature Applies Applies Applies5.1.2 5.1.2 External source of heating orcoolingApplies Applies Applies5.2 5.2 Service temperature Ap
21、plies Applies Applies5.3.1 5.3.1 Determination of maximumsurface temperatureApplies Applies Excluded5.3.2.1 5.3.2.1 Group I electrical equipment Applies Excluded Excluded5.3.2.2 5.3.2.2 Group II electrical equipment Applies Excluded Excluded5.3.2.3 5.3.2.3 Group III electrical equipment Excluded App
22、lies Excluded5.3.3 5.3.3 Small component temperaturefor Group I or Group IIelectrical equipmentApplies Excluded Excluded6.1 6.1 General Applies Applies Applies6.2 6.2 Mechanical strength ofequipmentExcludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.
23、3 a) isapplied6.3 6.3 Opening times Excluded Excluded Excluded6.4 6.4 Circulating currents inenclosures (e.g. of largeelectrical machines)Excluded Excluded Excluded6.5 6.5 Gasket retention Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isap
24、pliedMARCH 28, 2014 NATIONAL DIFFERENCES FOR UL UL 60079-11 5Table 1DV Applicability of specific clauses of IEC 60079-0 Continued on Next PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 1DV Applicability of specific clauses of IEC 60
25、079-0 ContinuedClause or subclause of IEC 60079-0 IEC 60079-0 clause application to IEC 60079-11Intrinsically safe apparatus AssociatedapparatusEd. 5.0 Ed. 6.0 Clause / Subclause titleGroup I andGroup IIGroup III(informative) (informative) (normative)6.6 6.6 Electromagnetic and ultrasonicradiating e
26、quipmentApplies Applies Excluded7.1.1 7.1.1 Applicability Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied7.1.2 7.1.2.1 Specification of materials Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excluded
27、except when6.1.2.3 a) isapplied7.1.3 7.1.2.2 Plastic materials Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied7.1.4 7.1.2.3 Elastomers Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when
28、6.1.2.3 a) isapplied7.2 7.2 Thermal endurance Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied7.3 7.3 Resistance to light Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isa
29、pplied7.4 7.4 Electrostatic charges onexternal non-metallic materialsApplies Applies ExcludedNR 7.5 Accessible metal parts Applies Applies Excluded7.5 NR Threaded holes Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied8.1 8.1 Materia
30、l composition Applies Applies Excluded8.1.1 8.2 Group I Applies Excluded Excluded8.1.2 8.3 Group II Applies Excluded Excluded8.1.3 8.4 Group III Excluded Applies Excluded8.2 NR Threaded holes Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) i
31、sapplied9 9 Fasteners Excluded Excluded Excluded10 10 Interlocking devices Excluded Excluded Excluded11 11 Bushings Excluded Excluded Excluded12 12 Materials used for cementing Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied13 13 E
32、x Components Applies Applies AppliesMARCH 28, 2014NATIONAL DIFFERENCES FOR UL UL 60079-116Table 1DV Applicability of specific clauses of IEC 60079-0 Continued on Next PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 1DV Applicability
33、of specific clauses of IEC 60079-0 ContinuedClause or subclause of IEC 60079-0 IEC 60079-0 clause application to IEC 60079-11Intrinsically safe apparatus AssociatedapparatusEd. 5.0 Ed. 6.0 Clause / Subclause titleGroup I andGroup IIGroup III(informative) (informative) (normative)14 14 Connection fac
34、ilities andtermination compartmentsExcluded Excluded Excluded15 15 Connection facilities forearthing or bonding conductorsExcluded Excluded Excluded16 16 Entries into enclosures Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied17 17
35、Supplementary requirementsfor rotating machinesExcluded Excluded Excluded18 18 Supplementary requirementsfor switchgearExcluded Excluded Excluded19 19 Supplementary requirementsfor fusesExcluded Excluded Excluded20 20 Supplementary requirementsfor plugs, socket outlets andconnectorsExcluded Excluded
36、 Excluded21 21 Supplementary requirementsfor luminairesExcluded Excluded Excluded22 22 Supplementary requirementsfor caplights and handlightsModified Modified Excluded23.1 23.1 General Applies Applies Applies23.2 23.2 Batteries Excluded Excluded Excluded23.3 23.3 Cell types Applies Applies Applies23
37、.4 23.4 Cells in a battery Applies Applies Applies23.5 23.5 Ratings of batteries Applies Applies Applies23.6 23.6 Interchangeability Applies Applies Applies23.7 23.7 Charging of primary batteries Applies Applies Applies23.8 23.8 Leakage Applies Applies Applies23.9 23.9 Connections Applies Applies Ap
38、plies23.10 23.10 Orientation Applies Applies Applies23.11 23.11 Replacement of cells orbatteriesApplies Applies Applies23.12 23.12 Replaceable battery pack Applies Applies Applies24 24 Documentation Applies Applies Applies25 25 Compliance of prototype orsample with documentsApplies Applies Applies26
39、.1 26.1 General Applies Applies Applies26.2 26.2 Test configuration Applies Applies Applies26.3 26.3 Tests in explosive test mixtures Applies Applies Applies26.4.1 26.4.1 Order of tests Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isappli
40、ed26.4.1.1 26.4.1.1 Metallic enclosures, metallicparts of enclosures and glassparts of enclosuresExcludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isappliedMARCH 28, 2014 NATIONAL DIFFERENCES FOR UL UL 60079-11 7Table 1DV Applicability of spec
41、ific clauses of IEC 60079-0 Continued on Next PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 1DV Applicability of specific clauses of IEC 60079-0 ContinuedClause or subclause of IEC 60079-0 IEC 60079-0 clause application to IEC 6007
42、9-11Intrinsically safe apparatus AssociatedapparatusEd. 5.0 Ed. 6.0 Clause / Subclause titleGroup I andGroup IIGroup III(informative) (informative) (normative)26.4.1.2 26.4.1.2 Non-metallic enclosures ornon-metallic parts ofenclosuresExcludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a)
43、 isapplied.Excludedexcept when6.1.2.3 a) isapplied26.4.1.2.1 26.4.1.2.1 Group I electrical equipment Excludedexcept when6.1.2.3 a) isappliedExcluded Excludedexcept when6.1.2.3 a) isapplied26.4.1.2.2 26.4.1.2.2 Group II and Group III electricalequipmentExcludedexcept when6.1.2.3 a) isappliedExcludede
44、xcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied26.4.2 26.4.2 Resistance to impact Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied26.4.3 26.4.3 Drop test Applies Applies Excludedexcept when6.1.2.3 a) isapplied26
45、.4.4 26.4.4 Acceptance criteria Applies Applies Excludedexcept when6.1.2.3 a) isapplied26.4.5 26.4.5 Degree of protection (IP) byenclosuresApplies Applies Applies26.5.1.1 26.5.1.1 General Applies Applies Excluded26.5.1.2 26.5.1.2 Service temperature Modified Modified Modified26.5.1.3 26.5.1.3 Maximu
46、m surface temperature Modified Modified Modified26.5.2 26.5.2 Thermal shock test Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied26.5.3 26.5.3 Small component ignition test(Group I and Group II)Applies Excluded Excluded26.6 26.6 Tor
47、que test for bushings Excluded Excluded Excluded26.7 26.7 Non-metallic enclosures ornon-metallic parts ofenclosuresExcludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied26.8 26.8 Thermal endurance to heat Excludedexcept when6.1.2.3 a) isa
48、ppliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isapplied26.9 26.9 Thermal endurance to cold Excludedexcept when6.1.2.3 a) isappliedExcludedexcept when6.1.3 a) isapplied.Excludedexcept when6.1.2.3 a) isappliedMARCH 28, 2014NATIONAL DIFFERENCES FOR UL UL 60079-118Table 1DV A
49、pplicability of specific clauses of IEC 60079-0 Continued on Next PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 1DV Applicability of specific clauses of IEC 60079-0 ContinuedClause or subclause of IEC 60079-0 IEC 60079-0 clause application to IEC 60079-11Intrinsically safe apparatus AssociatedapparatusEd. 5.0 Ed. 6.0 Clause / Subclause titleGroup I andGroup IIGroup III(informative) (informative) (normative)26.10 26.10 Resistance to light Excludedexcept when6.1.2.3 a) isappliedE
