EN 60079-10-2:2015
(Main)Explosive atmospheres - Part 10-2: Classification of areas - Explosive dust atmospheres
Explosive atmospheres - Part 10-2: Classification of areas - Explosive dust atmospheres
NEW! IEC 60079-10-2:2015 is available as IEC Standards+ 60079-10-2:2015 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60079-10-2:201 5 is concerned with the identification and classification of areas where explosive dust atmospheres and combustible dust layers are present, in order to permit the proper assessment of ignition sources in such areas. In this standard, explosive dust atmospheres and combustible dust layers are treated separately. In Clause 4, area classification for explosive dusts clouds is described, with dust layers acting as one of the possible sources of release. In Clause 7 other general considerations for dust layers are described. The examples in this standard are based on a system of effective housekeeping being implemented in the plant to prevent dust layers from accumulating. Where effective housekeeping is not present, the area classification includes the possible formation of explosive dust clouds from dust layers. The principles of this standard can also be followed when combustible fibres or flyings might cause a hazard. This standard is intended to be applied where there can be a risk due to the presence of explosive dust atmospheres or combustible dust layers under normal atmospher ic conditions. Please refer to the foreword of the document for a detailed listing of the significant technical changes from the previous edition. Keywords: explosive dust atmospheres, combustible dust layers, ignition hazards
Explosionsgefährdete Bereiche - Teil 10-2: Einteilung der Bereiche - Staubexplosionsgefährdete Bereiche
Atmosphéres explosives - Partie 10-2: Classement des emplacements - Atmosphères explosives poussiéreuses
NEW! IEC 60079-10-2:2015 est disponible sous forme de IEC Standards+ 60079-10-2:2015 qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente. L'IEC 60079-10-2:2015 traite de l'identification et du classement des emplacements où des atmosphères explosives poussiéreuses et des couches de poussières combustibles sont présentes, afin de permettre une évaluation appropriée des sources d'inflammation à utiliser dans de tels emplacements. Dans la présente norme, les atmosphères explosives poussiéreuses et les couches de poussières combustibles sont traitées séparément. Le classement des emplacements de nuages de poussières explosives où les couches de poussière agissent comme l'u ne des sources possibles de dégagement est décrit dans l'Article 4. Une description des autres considérations d'ordre général relatives aux couches de poussière est présentée dans l'Article 7. Les exemples donnés dans la présente norme sont basés sur un système d'entretien efficace à mettre en oeuvre sur le site afin d'empêcher la formation de couches de poussière par accumulation. En l'absence d'entretien efficace, le classement des emplacements pren d en compte la formation possible de nuages de poussières explosives à partir des couches de poussière. Les principes de la présente norme peuvent également être suivis lorsque des fibres ou particules volatiles et combustibles sont une source de danger. La présente norme est destinée à être appliquée lorsqu'il y a un risque dû à la présence d'atmosphères explosives poussiéreuses ou de couches de poussières combustibles dans des conditions atmosphériques normales. S'il vous plaît se référer à la avant-propo s du document pour obtenir une liste détaillée des modifications techniques majeures par rapport à l'édition précédente. Mots-clés: atmosphères explosives poussières, couches de poussières combustibles, les risques d'inflammation
Eksplozivne atmosfere - 10-2. del: Razvrstitev prostorov - Eksplozivne prašne atmosfere (IEC 60079-10-2:2015)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2015
1DGRPHãþD
SIST EN 60079-10-2:2009
Eksplozivne atmosfere - 10-2. del: Razvrstitev prostorov - Eksplozivne prašne
atmosfere (IEC 60079-10-2:2015)
Explosive atmospheres -- Part 10-2: Classification of areas - Combustible dust
atmospheres (IEC 60079-10-2:2015)
Explosionsgefährdete Bereiche - Teil 10-2: Einteilung der Bereiche -
Staubexplosionsgefährdete Bereiche (IEC 60079-10-2:2015)
Atmosphéres explosives - Partie 10-2: Classement des emplacements - Atmosphères
explosives poussiéreuses (IEC 60079-10-2:2015)
Ta slovenski standard je istoveten z: EN 60079-10-2:2015
ICS:
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 60079-10-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2015
ICS 29.260.20 Supersedes EN 60079-10-2:2009
English Version
Explosive atmospheres - Part 10-2: Classification of areas -
Explosive dust atmospheres
(IEC 60079-10-2:2015)
Atmosphéres explosives - Partie 10-2: Classement des Explosionsgefährdete Bereiche - Teil 10-2: Einteilung der
emplacements - Atmosphères explosives poussiéreuses Bereiche - Staubexplosionsgefährdete Bereiche
(IEC 60079-10-2:2015) (IEC 60079-10-2:2015)
This European Standard was approved by CENELEC on 2015-02-20. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60079-10-2:2015 E
Foreword
The text of document 31J/244/FDIS, future edition 2 of IEC 60079-10-2, prepared by SC 31J "Classification
of hazardous areas and installation requirements" of IEC/TC 31 "Equipment for explosive atmospheres" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60079-10-2:2015.
The following dates are fixed:
(dop) 2015-11-20
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2018-02-20
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60079-10-2:2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 60079-10-2:2015 was approved by CENELEC as a European
Standard without any modification.
IEC 60079-2 NOTE Harmonized as EN 60079-2.
IEC 60079-11 NOTE Harmonized as EN 60079-11.
IEC 60079-14 NOTE Harmonized as EN 60079-14.
IEC 60079-28 NOTE Harmonized as EN 60079-28.
IEC 60079-18 NOTE Harmonized as EN 60079-18.
IEC 60079-31 NOTE Harmonized as EN 60079-31.
IEC 60079-32-2 NOTE Harmonized as EN 60079-32-2.
- 3 - EN 60079-10-2:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60079-0 (mod) - Explosive atmospheres -- Part 0: Equipment - EN 60079-0 -
General requirements
+A11 2013
IEC 60079-10-1 - Explosive atmospheres -- Part 10-1: EN 60079-10-1 -
Classification of areas - Explosive gas
atmospheres
ISO/IEC 80079-20-2 - Explosive atmospheres - Part 20-2: Material - -
characteristics - Combustible dusts test
methods
IEC 60079-10-2 ®
Edition 2.0 2015-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Explosive atmospheres –
Part 10-2: Classification of areas – Explosive dust atmospheres
Atmosphères explosives –
Partie 10-2: Classement des emplacements – Atmosphères explosives
poussiéreuses
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.260.20 ISBN 978-2-8322-2195-2
– 2 – IEC 60079-10-2:2015 © IEC 2015
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 Area classification . 12
4.1 General . 12
4.2 Area classification procedure for explosive dust atmospheres . 13
4.3 Competence of personnel . 14
5 Sources of release. 14
5.1 General . 14
5.2 Dust containment . 14
5.3 Identification and grading of sources of release . 14
6 Zones . 15
6.1 General . 15
6.2 Extent of zones . 15
6.2.1 General . 15
6.2.2 Zone 20 . 15
6.2.3 Zone 21 . 16
6.2.4 Zone 22 . 16
7 Dust layers . 16
8 Documentation . 17
8.1 General . 17
8.2 Drawings, data sheets and tables . 17
8.2.1 Content of documents . 17
8.2.2 Preferred Symbol key for area classification zones . 18
Annex A (informative) Area classification examples . 19
A.1 Examples of zones . 19
A.1.1 General . 19
A.1.2 Zone 20 . 19
A.1.3 Zone 21 . 19
A.1.4 Zone 22 . 19
A.2 Bag emptying station within a building and without exhaust ventilation . 20
A.3 Bag emptying station with exhaust ventilation . 21
A.4 Cyclone and filter with clean outlet outside building . 21
A.5 Drum tipper within a building without exhaust ventilation . 22
Annex B (informative) Housekeeping . 24
B.1 Introductory remarks . 24
B.2 Levels of housekeeping . 24
Annex C (informative) Hybrid mixtures . 26
C.1 General . 26
C.2 Ventilation. 26
C.3 Explosive limits . 26
C.4 Chemical reactions . 26
C.5 Minimum ignition parameters . 26
IEC 60079-10-2:2015 © IEC 2015 – 3 –
C.6 Final classification . 26
Bibliography . 27
Figure 1 – Identification of zones on drawings . 18
Figure A.1 – Bag emptying station within a building and without exhaust ventilation . 20
Figure A.2 – Bag emptying station with exhaust ventilation . 21
Figure A.3 – Cyclone and filter with clean outlet outside building . 22
Figure A.4 – Drum tipper within a building without exhaust ventilation . 23
Table 1 – Designation of zones depending on presence of dust . 16
– 4 – IEC 60079-10-2:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EXPLOSIVE ATMOSPHERES –
Part 10-2: Classification of areas –
Explosive dust atmospheres
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on techni
...
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