Significant changes of EN IEC 60079-0:2018 with respect to EN 60079-0:2012+A11
If you have designed and produced your explosion-proof product based on the previous version of the standard EN 60079-0:2012+A11 and in case that you have obtained ATEX or IECEx certificate accordingly, this comparison table helps you in the following cases:
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you will have a clear and simple guide to check if the design of your product is required to modified or not;
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you will be able to check if re-issuing your ATEX or IECEx certificate bease on the new version of the standard (EN IEC 60079-0:2018) will require modification on your product design and technical documentation and will need to repeat any of tests which has been already done during initial certification, or not.
Types of changes
1. Minor and editorial changes
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Poupose of change:
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clarification
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decrease of technical requirements
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minor technical change
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editorial corrections
These are changes which modify requirements in an editorial or a minor technical way. They include changes of the wording to clarify technical requirements without any technical change, or a reduction in level of existing requirement.
2. Extension
Purpose of change:
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addition of technical options
These are changes which add new or modify existing technical requirements, in a way that new options are given, but without increasing requirements for equipment that was fully compliant with the previous standard. Therefore, these will not have to be considered for
products in conformity with the preceding edition.
3. Major technical changes
Purpose of change:
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addition of technical requirements
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increase of technical requirements
These are changes to technical requirements (addition, increase of the level or removal) made in a way that a product in conformity with the preceding edition will not always be able to fulfill the requirements given in the later edition. These changes have to be considered for products in conformity with the preceding edition. For these changes additional information is provided in "Information about the background of changes" of page 13 of EN IEC 60079-0:2018.
Gap analysis for effects of standard revision
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In the below tables, only "Extensions" and "Major technical changes" which may affect the requirements of design and certification of explosion-proof products are specified.
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for performing a gap analysis for finding possible non-conformities in product design and required type tests for certification following revising the EN 60079-0:2012 to EN IEC 60079-0:2018, ConformEx proposes a table in which, all clauses of EN IEC 60079-0:2018, are mentioned, in addition all "minor", "extension" and "major" changes and the "clauses without change", are specified.
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gap analysis table for changes of requirements of type tests (click to download);
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gap analysis table for changes of requirements of product design (click to download)
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for the purpose of an effective gap analysis, the columns "applicability for the current project", "Reason of applicability", "Risk of raising non-conformity with IEC 60079-0:2017" and "Necessary measures, in case of raised risk" should be completed in the proposed table.
1. Significant changes relevant to type tests
Clause ofEN ISO/IEC 60079-0:2018 |
Subject of clause |
Significant changes |
Type of change |
26.4.5.1 |
Test procedures |
Added clarification to deal with the new IPX9 ratings |
extension |
26.5.1.3 |
Maximum surface temperature |
Added for EPL Db, a dust layer in a specified
|
extension |
26.13 |
Surface resistance test |
Option added for testing at lower voltages when low resistance materials are encountered |
extension |
26.17 |
Transferred charge test |
Transferred charge test added based on IEC TS 60079-32-2 |
extension |
2. Significant changes relevant to product design
Clause ofEN ISO/IEC 60079-0:2018 |
Subject of clause |
Significant changes |
Type of change |
5.3.2.3.2 |
Maximum surface temperature for EPL Db |
Added for EPL Db, a dust layer in a specified orientation, marked as TL |
extension |
6.5 |
Gasket retention |
Added requirement that where an adhesive is used to secure a gasket, it shall be used within its COT and shall comply with the requirements for cements |
Major |
6.6.3 |
Ultrasonic sources |
Ultrasonic requirements updated based on latest research work |
extension |
7.4.2 b) |
Avoidance of a build-up of electrostatic charge for Group I or Group IIb) by limitation of surface area |
Added additional relaxation for the case, where a
|
extension |
7.4.2 c) |
Avoidance of a build-up of electrostatic charge for Group I or Group IIb) by limitation of thickness of a non-metallic layer bonded to conductive or dissipative surfaces |
Added reference to IEC 60243-1 and IEC 60243-
|
Major |
7.4.2 f) |
For portable, mains powered equipment |
New option added for portable, mains-powered equipment with earth-connected guard |
extension |
7.4.2 g) |
by evaluating that the maximal transferred charge measured according to 26.17 is within the threshold limits of Table 10. |
Added option for determination of maximum
|
extension |
8.5 |
Copper Alloys |
Added limitation for external surfaces of >65% copper |
Major |
13.5 |
Ex components certificate |
Required that Ex Component Certificates shall include a Schedule of Limitations in all cases |
extension |
16.3 |
Cable glands |
Non-threaded Group I cable glands are no longer
|
extension |
16.4 |
Blanking elements |
Non-threaded Group I blanking elements are no longer required to be Ex Components. |
extension |
20.1 |
Supplementary requirements for external plugs, socket outlet and connectors for field wiring connection |
Added requirements for EPL Gc and Dc.he added requirements for tool securing and marking are consistent with the approach in IEC 60079-15 |
Major |
23.3 |
Cell types(Table 13) |
New cell types and data added based on latest available data |
extension |
23.3 |
Cell types(Table 14) |
New cell types and data added based on latest available data |
Major |
29.4 |
Ex marking for explosive gas atmospheres |
Text added to address marking of “Ex associated equipment” |
extension |
30.3 |
Instruction |
Additional instruction material for electric machines added |
Major |
29.5 d) |
Ex marking for explosive dust atmospheresd) The maximum surface temperature marking |
Introduced marking for EPL Db with a dust layer in a specified orientation |
extension |
29.5 |
Ex marking for explosive dust atmospheres |
Text added to address marking of “Ex associated equipment” |
extension |
29.9 |
Boundary wall |
Text added to address marking of equipment intended to be installed in a boundary wall |
extension |
30.3 |
Instructions(Electric machines) |
Additional instruction material for electric machines added |
Major |
30.5 |
Instructions(Cable glands) |
Additional instruction material for cable glands
|
Major |
A.1 |
Supplementary requirements for cable glandsGeneral |
Allow ISO 10807 hose assemblies to be used with cable glands |
extension |
A.3.1.1 |
Supplementary requirements for cable glandsTests of clamping of non-armoured and raided cables with clamping by the sealing ring |
Reduction of the time / slippage permitted |
extension |
A.5 |
Instructions(Cable glands) |
Additional instruction material for cable glands added |
Major |
End of table.
