EN 60079-10-1:2015
(Main)Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
IEC 60079-10-1:2015 is available as IEC 60079-10-1:2015 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60079-10-1:2015(E) is concerned with the classification of areas where flammable gas or vapour hazards may arise and may then be used as a basis to support the proper selection and installation of equipment for use in hazardous areas. It is intended to be applied where there may be an ignition hazard due to the presence of flammable gas or vapour, mixed with air, but it does not apply to: - mines susceptible to firedamp; - the processing and manufacture of explosives; - catastrophic failures or rare malfunctions which are beyond the concept of abnormality dealt with in this standard (see 3.7.3 and 3.7.4); - rooms used for medical purposes; - commercial and industrial applications where only low pressure fuel gas is used for appliances e.g. for cooking, water heating and similar uses, where the installation is compliant with relevant gas codes; - domestic premises; - where a hazard may arise due to the presence of combustible dusts or combustible flyings but the principles may be used in assessment of a hybrid mixture (refer also IEC 60079 10-2). This second edition of IEC 60079-10-1 cancels and replaces the first edition, published in 2008, and constitutes a technical revision. The significant technical changes with respect to the previous edition are identified in the Foreward of the document. Keywords: ignition hazards, flammable gas or vapour, risk of explosions
Explosionsgefährdete Bereiche - Teil 10-1: Einteilung der Bereiche - Gasexplosionsgefährdete Bereiche
Atmosphères explosives - Partie 10-1: Classement des emplacements - Atmosphères explosives gazeuses
L'IEC 60079-10-1:2015 concerne le classement des emplacements dans lesquels des dangers dus à des gaz ou vapeurs inflammables peuvent apparaître, et ainsi constitue une base pour le choix et l'installation corrects du matériel utilisé dans de tels emplacements. Elle est destinée à être appliquée là où il peut exister un danger d'inflammation du fait de la présence de gaz ou vapeurs inflammables, en mélange avec l'air, mais elle ne s'applique pas: - aux mines grisouteuses; - au traitement et à la fabrication des explosifs; - aux défaillances catastrophiques ou rares dysfonctionnements, qui dépassent le concept d'anormalité traité dans la présente norme (voir 3.7.3 et 3.7.4); - aux locaux utilisés à des fins médicales; - aux applications commerciales et industrielles dans lesquelles seul du gaz combustible basse pression est utilisé, par exemple, pour cuisiner, chauffer l'eau, etc., l'installation satisfaisant aux codes de gaz correspondants; - aux locaux à usage domestique; - lorsqu'un danger peut apparaître compte tenu de la présence de poussières combustibles ou de particules combustibles en suspension dans l'air, mais les principes définis peuvent toutefois être appliqués dans l'évaluation d'un mélange hybride (se reporter également à l'IEC 60079-10-2). Cette deuxième édition de l'IEC 60079-10-1 annule et remplace la première édition parue en 2008. Cette édition constitue une révision technique. Les modifications techniques importantes par rapport à l'édition précédente sont identifiés dans l'avant-propos du document. Mots clés: danger d'inflammation, gaz ou vapeurs inflammables, risque d'explosions
Eksplozivne atmosfere - 10-1. del: Razvrstitev prostorov - Eksplozivne plinske atmosfere (IEC 60079-10-1:2015 + COR1:2015)
Ta del standarda IEC 60079 zajema razvrstitev prostorov, kjer lahko pride do nesreč z vnetljivimi plini ali hlapi, ki se jih lahko uporablja kot podlago za izbiro in namestitev primerne opreme za uporabo v nevarnih prostorih.
Namenjen je uporabi v prostorih, kjer obstaja nevarnost vžiga zaradi prisotnosti vnetljivih plinov in hlapov, ki so zmešani z zrakom, vendar se ne uporablja za:
a) rudnike, ki jih ogroža jamski eksplozivni plin;
b) obdelavo in izdelavo eksplozivov;
c) hude odpovedi in redke okvare, ki presegajo anomalije, ki so zajete v tem standardu (glejte točki 3.7.3 in 3.7.4);
d) prostore za zdravstvene namene;
e) komercialno in industrijsko uporabo, kjer se kot gorivo za naprave uporablja samo plin pod nizkim pritiskom, npr. za kuhanje, ogrevanje vode ipd. in kjer je namestitev teh naprav skladna z ustreznimi plinskimi predpisi;
f) stanovanjske prostore;
g) prostore, kjer obstaja nevarnost zaradi prisotnosti gorljivega prahu ali odpadkov iz predilnic, vendar se načela lahko uporablja za oceno hibridnih mešanic (glejte tudi standard IEC 60079-10-2).
OPOMBA: Dodatne smernice glede hibridnih mešanic so zajete v dodatku I.
Vnetljive meglice se lahko oblikujejo oziroma so lahko prisotne hkrati z vnetljivimi hlapi. V tem primeru strogo upoštevanje tega standarda morda ni ustrezno. Vnetljive meglice se lahko oblikujejo tudi, ko se tekočine, ki se jih zaradi visokega plamenišča ne obravnava kot nevarne, sprosti pod pritiskom. V tem primeru razvrstitve in podrobnosti, podane v tem standardu, ne veljajo. Informacije o vnetljivih meglicah so podane v dodatku G. Za namene tega standarda je prostor opredeljen kot tridimenzionalno območje ali kraj.
Atmosferski pogoji vključujejo spremembe nad in pod referenčnimi nivoji (101,3 kPa (1013 mbar) in 20 °C (293 K)) pod pogojem, da imajo spremembe zanemarljiv vpliv na eksplozivne lastnosti vnetljivih snovi.
V vsakem obdelovalnem obratu, ne glede na velikost, so lahko poleg virov vžiga, povezanih z opremo, še številni drugi viri vžiga. V teh okoljih je za zagotavljanje varnosti treba upoštevati ustrezne previdnostne ukrepe. Ta standard se po lastni presoji lahko uporablja za druge vire vžiga. Ta standard ne vključuje posledic vžiga eksplozivne atmosfere.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2016
1DGRPHãþD
SIST EN 60079-10-1:2009
Eksplozivne atmosfere - 10-1. del: Razvrstitev prostorov - Eksplozivne plinske
atmosfere (IEC 60079-10-1:2015 + COR1:2015)
Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
(IEC 60079-10-1:2015 + COR1:2015)
Explosionsgefährdete Bereiche - Teil 10-1: Einteilung der Bereiche -
Gasexplosionsgefährdete Bereiche (IEC 60079-10-1:2015 + COR1:2015)
Atmosphères explosives - Partie 10-1: Classement des emplacements - Atmosphères
explosives gazeuses (IEC 60079-10-1:2015 + COR1:2015)
Ta slovenski standard je istoveten z: EN 60079-10-1:2015
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 60079-10-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2015
ICS 29.260.20 Supersedes EN 60079-10-1:2009
English Version
Explosive atmospheres - Part 10-1: Classification of areas -
Explosive gas atmospheres
(IEC 60079-10-1:2015 + COR1:2015)
Atmosphères explosives - Partie 10-1: Classement des Explosionsgefährdete Bereiche - Teil 10-1: Einteilung der
emplacements - Atmosphères explosives gazeuses Bereiche - Gasexplosionsgefährdete Bereiche
(IEC 60079-10-1:2015 + COR1:2015) (IEC 60079-10-1:2015 + COR1:2015)
This European Standard was approved by CENELEC on 2015-10-13. 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 60079-10-1:2015 E
European foreword
The text of document 31J/253/FDIS, future edition 2 of IEC 60079-10-1, 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 60079-10-1:2015.
The following dates are fixed:
• latest date by which the document has to be implemented at (dop) 2016-07-13
national level by publication of an identical national
standard or by endorsement
(dow) 2018-10-13
• latest date by which the national standards conflicting with
the document have to be withdrawn
This document supersedes EN 60079-10-1:2009.
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
1)
The text of the International Standard IEC 60079-10-1:2015 + COR1:2015 was approved by
CENELEC as a European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60079-10-2 NOTE Harmonized as EN 60079-10-2.
IEC 61285:2004 NOTE Harmonized as EN 61285:2004 (not modified).
IEC 60079-20-1 NOTE Harmonized as EN 60079-20-1.
1) COR1:2015 applies to English version only.
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 - Explosive atmospheres - EN 60079-0 -
Part 0: Equipment - General requirements
IEC 60079-14 - Explosive atmospheres - EN 60079-14 -
Part 14: Electrical installations design,
selection and erection
IEC 60079-10-1 ®
Edition 2.0 2015-09
INTERNATIONAL
STANDARD
colour
inside
Explosive atmospheres –
Part 10-1: Classification of areas – Explosive gas atmospheres
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.260.20 ISBN 978-2-8322-2867-8
– 2 – IEC 60079-10-1:2015 © IEC 2015
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 General . 15
4.1 Safety principles . 15
4.2 Area classification objectives . 16
4.3 Explosion risk assessment . 16
4.4 Competence of Personnel . 17
5 Area classification methodology . 17
5.1 General . 17
5.2 Classification by sources of release method . 18
5.3 Use of industry codes and national standards . 18
5.4 Simplified methods . 18
5.5 Combination of methods . 19
6 Release of flammable substance . 19
6.1 General . 19
6.2 Sources of release . 19
6.3 Forms of release . 20
6.3.1 General . 20
6.3.2 Gaseous release . 21
6.3.3 Liquefied under pressure . 21
6.3.4 Liquefied by refrigeration . 22
6.3.5 Aerosols . 22
6.3.6 Vapours . 22
6.3.7 Liquid releases . 22
6.4 Ventilation (or air movement) and dilution . 23
6.5 Main types of ventilation . 23
6.5.1 General . 23
6.5.2 Natural ventilation. 23
6.5.3 Artificial ventilation . 24
6.5.4 Degree of dilution . 25
7 Type of zone . 26
7.1 General . 26
7.2 Influence of grade of the source of release . 26
7.3 Influence of dilution . 27
7.4 Influence of availability of ventilation . 27
8 Extent of zone . 27
9 Documentation . 28
9.1 General . 28
9.2 Drawings, data sheets and tables . 28
Annex A (informative) Suggested presentation of hazardous areas . 30
A.1 Hazardous area zones – Preferred symbols . 30
A.2 Hazardous area suggested shapes . 33
IEC 60079-10-1:2015 © IEC 2015 – 3 –
Annex B (informative) Estimation of sources of release. 35
B.1 Symbols . 35
B.2 Examples of grade of release . 35
B.2.1 General . 35
B.2.2 Sources giving a continuous grade of release . 35
B.2.3 Sources giving a primary grade of release . 36
B.2.4 Sources giving a secondary grade of release . 36
B.3 Assessment of grades of release . 36
B.4 Summation of releases . 37
B.5 Hole size and source radius . 38
B.6 Forms of release . 40
B.7 Release rate . 41
B.7.1 General . 41
B.7.2 Estimation of Release Rate . 41
B.7.3 Release rate of evaporative pools . 44
B.8 Release from openings in buildings . 46
B.8.1 General . 46
B.8.2 Openings as possible sources of release . 46
B.8.3 Openings classification . 46
Annex C (informative) Ventilation guidance . 48
C.1 Symbols . 48
C.2 General . 49
C.3 Assessment of ventilation and dilution and its influence on hazardous are
...
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