EXNBG CLARIFICATION/DECISION SHEETS NOTED BY THE ATEX STANDING COMMITTEE STATUS ON DECEMBER 2009

Transcription

1 EXNBG CLARIFICATION/DECISION SHEETS NOTED BY THE ATEX STANDING COMMITTEE STATUS ON DECEMBER 2009 Number ExNB/CS/ DS (1) Edition Subject / Keywords 98/06/ Certification of a torch according to EN 50020:1977 clauses 9 and or EN 50020:1994 clauses 10 and /06/ Conformity to type Notification Format (ATEX Directive Annex VI) 98/06/ EN 50019: Internal contacts on zoned heating tapes 98/06/ Minimum requirement for thread engagement/npt cable entry holes in flameproof apparatus to EN /06/ EN 50020:1977 sub-clause 7.2 and EN 50020:1994 sub-clause Voltage source of EEPROMs etc. 99/06/ EN 50020:1977 sub-clause 7.2 and EN 50020:1994 sub-clause "EEX ib" 99/06/ EN 50020:1977 and EN 50020: Marking of apparatus with alternative protection "d" or "i" 99/06/ EN 50020:1977 and EN 50020:1994 sub-clause Calculation of multiple separation distances 99/06/ EN 50020:1977 sub-clause 5.5 and EN 50020:1994 sub-clause Separation for insulated components Approved by ExNBG (2) Authorized / Issued Noted by ATEX SC (3) 17/06/98 07/08/98 01/12/05 17/06/98 07/08/98 01/12/05 17/06/98 07/08/98 01/12/05 17/06/98 07/08/98 01/12/05 16/06/99 10/02/00 29/06/01 16/06/99 10/02/00 29/06/01 16/06/99 10/02/00 29/06/01 16/06/99 10/02/00 29/06/01 16/06/99 10/02/00 29/06/01 00/06/ EC-Type Examination for Category 3 products 29/09/00 03/11/00 27/11/09 00/06/ Recommendations on the measurement of the maximum temperature of light transmitting parts of products intended for use in potentially explosive atmospheres using thermocouples 30/06/00 03/11/00 08/12/00 00/06/ EN 50020:1994, clause 6.5 "Protection against 30/06/00 03/11/00 08/12/00 polarity reversal" 00/06/ Short temperature rise of Ex p motors during 30/06/00 03/11/00 08/12/00 starting 00/06/ Change of the standard wording of Article 11 of the 30/06/00 03/11/00 01/12/05 EC-Type Examination Certificate 00/ EN 50014:1977 Clause 7 and EN 50014: /03/04 01/12/05 clause 8, light alloys in Group I apparatus 00/ EN 50018:1977 Clause and EN 50018: /03/04 01/12/05 Clause 5.2.3, rectangular spigot joints 00/ EN 50028:1987 Clause 4.1.2, internal voids 09/03/04 01/12/05 00/ Procedural - Ex-components, indication of the 09/03/04 01/12/05 temperature class in the marking 00/ Certificate of Conformity of a flameproof enclosure 09/03/04 27/11/09 containing different components 00/ EN 50014:1977 Clause 13 and EN 50014: /03/04 01/12/05 Clause 15, earthing of traction batteries 00/ Procedural - Group I component certificates marked with the epsilon-x in the same way as Group II 27/11/09 00/ EN 50018:1977 Clause 14 and EN 50018:1994 Clause 15, heating cables 00/ EN 50019:1977 Clause and EN 50019:1994 Clauses & , materials used inside battery containers 00/ EN 50018:1977 Clause 6 and EN 50018:1994 Clause 7, wear-push rods and spindles in flameproof enclosures 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 European Commission Page 1 of 4 December 2009

2 Number ExNB/CS/ DS (1) Edition Subject / Keywords 00/ EN 50018:1977 Clause 12.1 and EN 50018:1994 Annex C, cable entry seal under tension 00/ EN 50018:1977 Clause 3 and EN 50018:1994 Clause 4, T Class for EEx d motors 00/ EN 50014:1977 Clause 7 and EN 50014: 1994 Clause 8, light alloys 00/ EN 50018:1977 Clause 10 and EN 50018:1994 Clause 11, non ISO threads 00/ EN 50014:1992 Clause 13, interchangeablity of Group I and Group II components 00/ EN 50019:1977, ventilation and IPX3 testing of batteries 00/ EN 50019:1977, dielectric strength tests for junction boxes 00/ EN 50014:1977 Clause 6.3 and EN 50014:1992 Clause 7.3.2, electrostatic hazard 00/ EN 50014:1977 Clause 16 and EN 50014:1992 Clause 17, fans 00/ Cables ends or cables between parts of apparatus for types of protection other than intrinsic safety 00/ EN 50018:1977 Clause 3 and EN 50018:1994 Clause 14, frequency converters and EEx d motors 00/02/ Temperature rise tests, flameproof motors, frequency converters, thermal protection, general methodology 99/11/ Plastic parts, on which the safety of type of protection "Flameproof Enclosure" depends Approved by ExNBG (2) Authorized / Issued Noted by ATEX SC (3) 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 09/03/04 01/12/05 21/02/00 10/02/00 29/06/01 10/11/99 10/02/00 29/06/01 99/06/ EN Flexible walls, flameproof enclosures 16/06/99 10/02/00 29/06/01 98/ Test for cells and batteries; EN 50020:1994; /06/01 06/02 01/12/05 98/ EN 50020: Rating of components related to associated apparatus with galvanic isolation. Reference HOTL (95)CESI/001 08/06/00 06/01 01/12/05 98/ EN 50020:1994 sub-clause and /09/02 01/12/05 rev. 1 Verification of CTI for 'i' 99/06/ EN 50018: Gas analysis performed within a 16/06/99 10/02/00 29/06/01 flameproof enclosure 99/01/ Outcome of the assessment (Clause 3.3 of Annex 15/04/99 28/05/99 01/12/05 IV and Annex VII) 99/11/ Impact test of non metallic enclosures (or 10/11/99 10/02/00 29/06/01 enclosure parts) 99/11/ Marking of associated apparatus according to EN 10/11/99 10/02/00 29/06/ /080 Proposal to modify the standard wording on EC- 08/06/00 27/11/09 Type Examination Certificates 99/ Instructions and EC-type examination 30/06/00 03/11/00 01/12/05 99/ Apparatus with a measuring function for explosion protection where a part is situated in an explosive atmosphere 09/06/00 06/01 01/12/05 99/ Handling and storage of the dossier for nonelectrical equipment category M2 and 2 according to Annex VIII, paragraph 3 00/ Flame arresters (autonomous protective systems), assessment of test results obtained under instable detonation conditions 00/ Structure of and requirements for EC-Type Examination Certificates of flame arresters 01/ Ex e temperature rise test according to EN and EN standards concerning electrical motors 08/06/00 06/01 01/12/05 15/06/01 14/12/01 01/12/05 15/06/01 14/12/01 01/12/05 15/01/01 06/02 01/12/05 European Commission Page 2 of 4 December 2009

3 Number ExNB/CS/ DS (1) Edition Subject / Keywords 01/ EC-type examination of gas detectors incorporating a measuring function for explosion protection 01/ EC-type examination of gas detectors incorporating a measuring function for explosion protection 01/ Guidelines on the management of assessment and surveillance programmes for products covered by Annex IV and VII of the ATEX Directive 94/9/EC 02/ Requirements and test procedure for heating equipment of explosion venting devices 02/ Equipment with connections between areas covered by directive 94/9/EC and areas with high pressure 02/ EC-type examination of gas detectors incorporating a measuring function for explosion protection 02/ EC-type examination and supervision of production for gas detectors incorporating a measuring function for explosion protection 02/ Distribution, availability and definition of the "Relevant information" to be "communicated" to other notified bodies following issue or withdrawal of EC-type Examination Certificates, Production QA Notification Certificates and Product QA Notification Certificates Approved by ExNBG (2) Authorized / Issued Noted by ATEX SC (3) 15/01/01 14/10/01 01/12/05 15/01/01 14/12/01 01/12/05 15/01/01 14/12/01 01/12/05 10/09/02 07/03/03 27/03/02 18/06/03 27/11/09 18/06/03 27/11/09 18/06/03 27/11/09 18/06/03 27/11/09 00/ EN 50019:1977 Ex "e" rated voltage windings 09/03/04 01/12/05 00/ EN 50020:1977 and EN 50020: T-class for 09/03/04 01/12/05 small coils 00/ EN 50028:1987 Clause 6.2.1, rated voltage and 09/03/04 01/12/05 external fault conditions 00/ EN 50014:1977 Clause and EN 50014: /03/04 01/12/05 Clause , guards for light transmitting parts 00/ EN 50018:1977 Clause 8 and EN 50018:1994 Clause 9, glass windows directly fused into the metallic housing 09/03/04 01/12/05 00/ EN 50019:1977, trace heating tapes 09/03/04 01/12/05 00/ EN 50028:1987 Clause Permitted 09/03/04 01/12/05 Prospective Short Circuit Current 03/ Equipment with a measuring function for explosion protection, drop test for remote sensors of fixed apparatus 09/03/04 01/12/05 03/ Equipment with a measuring function for explosion protection, high gas concentrations above the measuring range 03/ Equipment with a measuring function for explosion protection, battery capacity 03/ Equipment with a measuring function for explosion protection, examination of catalytic sensors of portable multigas apparatus 09/03/04 01/12/05 26/11/04 24/05/05 01/12/05 09/03/04 01/12/05 04/160 Radio frequency power limitation 26/11/04 24/05/05 01/12/05 04/161 Instructions for high volume, low value equipment 25/11/04 24/05/05 27/11/09 04/170 Control units for gas warning equipment 26/11/04 24/05/05 01/12/05 05/190 Fluorescent lamps in Ex-luminaires 26/11/04 24/05/05 01/12/05 07/264 Content of technical documentation 28/11/06 30/07/07 27/11/09 07/265 Scope of EN in addressing Annex IV and 28/11/06 30/07/07 27/11/09 VII 07/266 Application of the latest technical knowledge 28/11/06 30/07/07 27/11/09 07/267 Structure of and requirements for EC-Type 28/11/06 30/07/07 27/11/09 European Commission Page 3 of 4 December 2009

4 Number ExNB/CS/ DS (1) Edition Subject / Keywords Approved by ExNBG (2) Authorized / Issued Noted by ATEX SC (3) Examination Certificates for flame arresters 07/268 Proposal for amendment to Annex of EN /02/07 30/07/07 27/11/09 07/269 Proposal for amendment to Annex of EN /02/07 30/07/07 27/11/09 07/282 Ex q faults and overloads 20/10/08 27/11/09 07/283 IP Testing of Enclosures with non-metallic parts 20/10/08 27/11/09 (gaskets) 09/338 Instructions and year of manufacture 28/11/08 28/02/09 27/11/09 (1) : ExNB / xx.xx.xxx / CS/DS = European ATEX Notified Bodies / Numbering of the Clarification/Decision Sheet / CS/DS (2) : ExNBG = European ATEX Notified Bodies Group (3) : ATEX SC = ATEX Directive 94/9/EC Standing Committee European Commission Page 4 of 4 December 2009

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27 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/29/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50014:1977 clause 7 and EN 50014:1992 Clause 8, Light Alloys in Group I Apparatus Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Can portable apparatus, with enclosures of light alloy be certified for Group I? Answer: Yes, provided a tight fitted or secured leather case is used. 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-29CS.DOC

28 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/031/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50018:1977 Clause and EN 50018:1994 Clause 5.2.3, Rectangular Spigot Joints Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Are spigot joints with a rectangular shape/section, (with or without rounded corners), consisting of a flat part and a spigot part permitted without restrictions? Yes. These are permitted without restriction provided that the minimum values of width of joint and of maximum gap indicated in tables 3 and 4 of EN 50018:1977 or in tables 1 and 2 of EN 50018:1994 are observed. However, when there is no flat part of the spigot joint acetylene is excluded from Group IIC. 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-31CS.DOC

29 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/033/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50028:1987 Clause Internal Voids Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Clause of EN permits internal voids up to 100cm 3. Is it permitted to include larger components where the enclosed space is filled with loose inert material, for example glass beads, in order to reduce the free volume below 100cm 3? No 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-33CS.DOC

30 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/034/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: Procedural Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Are Ex-components to be certified without any indication of the temperature class in the marking? Yes, additional data such as power dissipation before a temperature class is reached may, however, be included in the test certificate if it is an aid to draw up a certificate of conformity. 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-34CS.DOC

31 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/035/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: HOTL Date: Step*5.2.4 Responses/Final Draft HOTL Date: *Step refers to ExNB Rules Subject: Certificate of Conformity of a Flameproof Enclosure Containing Different Components Authorised by Chairman: M. Shearman Date of application: Date: Signature: Question: Answer: What requirements need to be applied to certificates of conformity for Ex d enclosures, which can have different components built into them? The criteria for certificates of Conformity for d enclosures with different components to be built in, is as follows: a) A certificate should be issued for each specific apparatus (for example a measuring instrument, junction box or control unit); b) The electrical characteristics of the apparatus should be specified; c) The documents mentioned on the certificate should include a list of components mounted in the enclosure and a schematic representation of their layout; d) Installation of intrinsically safe circuits in enclosures should be restricted to special cases indicated in documents. This should also apply to capacitors and hot surfaces 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-35CS.DOC

32 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/037/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50014:1977 Clause 13 and EN 50014:1992 Clause 15 Earthing of Traction Batteries Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Can a certificate of conformity be issued for a traction battery without an internal and/or external earth, being in proper electrical contact with the chassis by installation requirements? Answer: Yes 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-37CS.DOC

33 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/38/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: Directive, 94/9/EC Article No. Directive, ESR No. Directive, Module Annex No. Standard, No. Authorised by Chairman: M. Shearman Date of application: Date: Signature: Subject: Procedural Question: Can Group I component certificates be marked with the epsilon-x in the same way as Group II? Answer: Yes 1 May be superseded by CS of ExNB This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. U:\Common\09 ATEX\06 Notified Bodies\clarification sheets\valid_clarification_sheets\exnb00-038cs.doc

34 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/039/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50018:1977 Clause 14 and EN 50018:1994 Clause 15, Heating Cables Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Are bending tests required for heating cables complying with the Flameproof design according to the standard EN and of which the enclosure consists of a flexible sheath and is earth fault protection required? Yes, they shall be submitted to the bending tests foreseen by amendment 4 of the standard EN Also an earth fault shall be foreseen and so an electrical protection device in relation to an earth fault is required. 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-39CS.DOC

35 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/041/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50019:1977 Clause and EN 50019:1994 Clauses & Materials used inside Battery Containers Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: For materials used in the construction of a battery, what procedure should be used to determine that the requirements of clause of EN are fulfilled? 1) The manufacturer sends to the testing station a declaration, dated and signed to attest that the requirements of clause of EN are fulfilled. 2) In case of doubt the testing station may carry out the control. Note Clarification still necessary according to ExNB WG 97/4 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-41CS.DOC

36 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/042/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50018:1977 Clause 6 and EN 50018:1994 Clause 7, Wear -Push Rods and Spindles in Flameproof Enclosures Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: What criteria is to be used, to determine if the wear experienced by a push rod or spindle will be sufficient to affect the Flameproof properties of a joint and consequently whether or not bearings are required? This is a matter of engineering judgement but where doubt exists, life testing of the assembly followed by transmission testing under the most adverse conditions will be undertaken. 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-42CS.DOC

37 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/045/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50018:1977 Clause 12.1 and EN 50018:1994 Annex C, Cable Entry Seal Under Tension Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Can a cable entry be certified in which the seal operates under tension rather than under compression? Yes, the cable entry can be dealt with as a part of a plastic enclosure and can be certified if the component withstands all tests specified for plastic enclosures. 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-45CS.DOC

38 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/046/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50018:1977 Clause 3 and EN 50018:1994 Clause 4 T Class for EEx d Motors Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: With respect to the determination of temperature class of flameproof motors, is the use of thermal switches generally accepted to limit the temperature within the required values and is this always sufficient? The use of thermal switches is generally accepted to limit the temperature within the required values. The thermal detectors in windings are not always sufficient to ensure the temperature limitation; in particular, in the case of inverter fed motors, temperature rises in bushings and bearings must be taken into account. 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-46CS.DOC

39 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/047/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50014:1977 Clause 7 and EN 50014: 1994 Clause 8, Light Alloys Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Does the relaxation of clause 8.3 of EN 50014:1992 refer to portable measuring instruments? Yes 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-47CS.DOC

40 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/048/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50018:1977 Clause 10 and EN 50018:1994 Clause 11, Non ISO Threads Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Are non-iso threads permitted to be used for special fasteners in flameproof enclosures? No Note Clarification still necessary according to ExNB WG 97/4 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-48CS.DOC

41 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/049/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50014:1992 Clause 13 Interchangeablity of Group I and Group II Components Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Are Group II certified components acceptable in Group I apparatus and viceversa? Yes, the respective Standard requirements are identical for both Groups Note Clarification still necessary according to ExNB WG 97/4 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-49CS.DOC

42 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/051/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50019:1977 Ventilation and IPX3 Testing of Batteries Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Are peak values of hydrogen concentration permitted, when testing the ventilation of batteries complying with EN 50019, Amendment 2. Also is an IPX3 test obligatory? Answer: Peak values of hydrogen concentration are permitted as long as the high concentration occurs for less than 30 minutes. A practical test of IPX3 is not obligatory; experience with similar constructions may be used. If a practical test is carried out and water enters the enclosure, the insulation resistance test as described in of EN 50019/A2 must be passed successfully, to show that the quantity of water is not harmful. Note Clarification still necessary according to ExNB WG 97/4 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-51CS.DOC

43 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/052/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50019:1977, Dielectric Strength Tests for Junction Boxes. Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: For EExe junction boxes equipped by the manufacturer with approved components, should the routine dielectric strength test be carried out with the components wired and if so how should the test be carried out? Yes, the test shall be carried out according to the following standards: - industrial control equipment: EN measurement control and laboratory use: EN Note Clarification still necessary according to ExNB WG 97/4 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-52CS.DOC

44 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/053/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50014:1977 Clause 6.3 and EN 50014:1992 Clause 7.3.2, Electrostatic Hazard. Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Note: Is it permissible to mark with a warning label, (visible to the user), fixed enclosures or parts of enclosures of plastic material of any size, if the usage does not imply the hazard of electrostatic charge? Yes, but it is not appropriate to use a warning if: - There is a rapid airflow (e.g. air flow meters, fans air guides, equipment intended to be installed in a mine gallery subject to forced ventilation, etc.) - The surface is intended to be touched frequently in service (e.g. keyboards, switches, windows likely to be cleaned frequently, touch screens on Visual Display Units). The use of an electrostatically harmless (e.g. leather) additional case is acceptable with X-marking for hand held apparatus 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-53CS.DOC

45 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/054/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50014:1977 clause 16 & EN 50014:1992 clause 17 - Fans Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: Answer: Do the requirements according to clause 16 of EN 50014:1977 (clause 17 of EN 50014:1992) apply for Group II fans for air-conditioning ('e' or 'd' motors with fan blades, hood etc) for a Certificate of Conformity? Yes they do. For fans intended to be mounted in ventilation duct systems the requirements for IP-protection and associated requirements for the parts providing the IP-protection (e.g impact test, light alloy enclosures) can also be fulfilled at the inlet and outlet of the duct. This shall be stated by X-marking and corresponding conditions in the certificate. Note: Based on the HOTL-decision according to item 4 (Decision 6.1) in the Minutes of the 50 th meeting of HOTL (16-18 October 1996). 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-54CS.DOC

46 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/055/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: Cables ends or cables between parts of apparatus for types of protection other than intrinsic safety Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: For apparatus with type of protection other than intrinsic safety with cable ends or cables between parts of such apparatus, what shall be verified? Answer: The following shall be verified: - - requirements or tests in the standard regarding dielectric strength - cables entering enclosures through compression glands shall have correct size for the gland. - cables entering d enclosures shall be effectively filled. - Where appropriate the following may be covered by special conditions for safe use and installation (X-marking) 1. The cable shall be installed in a way which provides for mechanical protection 2. The cables shall be suitable for the environmental use Note: Requirements, which shall not be applied or considered include: Cable length Conductor Area (except when relevant to temperature classification) Fire Propagation Properties 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-55CS.DOC

47 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Page 1 of 1 European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/00/056/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL Date: Step*5.2.3 Initial proposal Proposer: Date: Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: EN 50018:1977 Clause 3 and EN 50018:1994 Clause 14, Frequency Converters and EEx d Motors Authorised by Chairman: M. Shearman Date: Date of application: Signature: M D Shearman Question: What shall be verified if an EEx d motor is energised through a frequency converter? Answer: The following shall be verified: - temperature rise of the motor in combination with the converter. - thermal protection is provided in or on the motor windings. Note: thermal protection in or on the motor winding is not necessary if the converter is specified and included in the certificate. - In all cases the protection efficiency means shall be tested. 1 Current wording relates to 76/117/EEC, may be superseded This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. G:\ARCHIV\EG-Sekretariate\Explosionsschutz\Allgemeines\Entzippt\ExNB00-56CS.DOC

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55 ExNB Co-ordination of Notified Bodies Electrical Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Issued: European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/98/066/CS rev.1 Editon 1.0 Original in English Status: Step*5.2.1 Question Originator HOTL(96)SP/006 Date: Step*5.2.3 Initial proposal Proposer: 2nd ExNB Meeting Date: Step*5.2.4 Responses/Final Draft 5 th ExNB meeting Date: 14/06/20 01 *Step refers to ExNB Rules 1 st amendment Date: 09/09/02 Subject: Directive, 94/9/EC Article No. Directive, ESR No. Directive, Module Annex No. Standard, No. EN 50020:1994 sub-clause and Verification of CTI for 'i' Authorised by Chairman: M. Shearman Date: 09/09/02 Date of application: Signature: Subject: Question 1: Answer: Question 2: EN 50020:1994 sub-clause and Verification of CTI for 'i' How shall CTI for PCBs, with creepage distances on which intrinsic safety depends, be verified? By making own CTI measurements or measurements by a sub-contracted laboratory or accept CTI values provided by the apparatus manufacturer backed up with evidence of quality assured measurement (e.g. accredited test report) according to the correct test procedure (IEC 60112:1979). CTI values together with a reference to the correct test procedure (IEC 60112:1979) specified in the documentation by the apparatus manufacturer or manufacturer of the PCB, can also be accepted if backed up by experience of the laboratory. For which cases shall CTI be verified for coated PCBs? Answer: CTI shall be verified for both coated and uncoated PCB, irrespective of if conductive parts protrude through the coating or not. This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. ExNB98-066rev1CS EN sub-clause and Verification of CTI for 'i'.doc

56 - 2 - However, for PCBs with coating according to sub-clause and with no conductors emerging from the coating (including no conductive parts with sharp edges), CTI need not to be verified for neither coated nor uncoated samples of the PCB. ExNB98-066rev1CS EN sub-clause and Verification of CTI for 'i'.doc

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131 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Issued: European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/02/111/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator WG/98/9 Date: 16/02/01 Step*5.2.3 Initial proposal Proposer: WG/98/9 Date: 16/02/01 Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Subject: Directive, 94/9/EC Article No. Directive, ESR No. Directive, Module Annex No. Standard, No. 94/9/EC Annex Authorised by Chairman: M. Shearman Date: 18/06/03 Date of application: Signature: Equipment with connections between areas covered by directive 94/9/EC and areas with high pressure Question: Does conveying equipment where some parts but not all are under atmospheric pressure with internal pressures different from atmospheric pressure fall under the scope of directive 94/9/EC and should the assessment of the equipment take into account the increasing hazards associated with these other pressures? Answer: Yes. Since conveying equipment is covered by the Directive 98/37/EC for machinery, a risk assessment has to be performed including the risk of explosion independent of the question whether the equipment is matter of Directive 94/9/EC. When performing this risk assessment it will become evident that although parts of the described equipment are outside the scope of Directive 94/9/EC during normal operation (pressure oscillates between too low and too high values in relation to "atmospheric conditions") some parts or spaces still are under the scope and that the whole equipment during start and shut down is under the scope, at least. So both of the following examples fall under the scope of Directive 94/9/EC. This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. EXNB02-111CS Equipment with connections between areas covered by directive 94-9-EC and areas with high pressure.doc

132 - 2 - ANNEX Examples: 1. Vapour recovery pump for petrol stations The pump is sucking the petrol vapour air mixture from the atmosphere and is conveying it into a zone 0 pipe. Accordingly it is connected at its inlet and outlet to a potentially explosive atmosphere. It is itself placed in a zone 1 environment. Accordingly all outer parts of the pump are connected to a hazardous area. It is the aim of all the protections measures of the pump to avoid the ignition of all connected hazardous areas, no matter if the ignition sources are inside or outside the pump. 2. Vacuum pump sucking from a vacuum container and conveying the mixture into a pressure vessel or pressure line In this case the inner parts of the pump are not connected to an atmospheric environment, and accordingly only the outer parts of the pump are covered by both ATEX regulations. (The manufacturer may wish to sell this equipment for atmospheric use of the inlet and outlet side additionally, and then case 1 applies). EXNB02-111CS Equipment with connections between areas covered by directive 94-9-EC and areas with high pressure.doc

133 ExNB Co-ordination of Notified Bodies Equipment for use in potentially explosive atmospheres on Council Directive 94/9/EC (ATEX) Issued: European ATEX Notified Bodies Group Clarification/Decision Sheet N ExNB/02/112/CS Editon 1.0 Original in English Status: Step*5.2.1 Question Originator WG/98/5 Date: 15/05/01 Step*5.2.3 Initial proposal Proposer: WG/98/5 Date: 15/05/01 Step*5.2.4 Responses/Final Draft Date: *Step refers to ExNB Rules Authorised by Chairman: M. Shearman Date: 18/06/03 Date of application: Signature: EC-type examination of gas detectors incorporating a measuring function for explosion protection Question: When does Annex II, Clause 1.5 of directive 94/9/EC apply if performing EC Type examination of gas detectors that incorporate a measuring function for explosion protection? Answer: If a gas detector incorporates a measuring function for explosion protection in the sense of directive 94/9/EC it shall be assessed as safety-related device according to annex II, clause 1.5 EOTC/01/009 also applies. For example, a portable gas detector that is intended to be used to detect the presence of an explosive atmosphere prior to the opening of a flameproof enclosure that contains energised electrical circuits, is being used as a safety-related device. Annex 8, question 12 of the ATEX-guidelines concludes that: 1. Measuring equipment is within the scope. 2. Measuring equipment has to be safe with respect to explosion protection and the measuring function also requires assessment. 3. This measuring function can be used for the evaluation of potentially explosive atmospheres or for control of ignition sources within the equipment itself. This ExNB Interpretation/Clarification Sheet has the sole purpose of clarifying the application of the EN Standards and/or of the requirements of Directive 94/9/EC and related documents. It does not in any way change the content of the standards and/or of the requirements. It remains valid until an official answer is received from the European Commission of the relevant standardization bodies. EXNB02-112CS EC-type examination of gas detectors incorporating a measuring function for explosion protection.doc