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BS EN 60079-10-2:2015

Current
Current

The latest, up-to-date edition.

Explosive atmospheres Classification of areas. Explosive dust atmospheres
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-31-2015

This part of IEC60079 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 Clause4, area classification for explosive dusts clouds is described, with dust layers acting as one of the possible sources of release. In Clause7 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 atmospheric conditions (see Note1). NOTE1 Atmospheric conditions include variations in pressure and temperature above and below reference levels of 101,3kPa (1013mbar) and 20°C (293K), provided that the variations have a negligible effect on the explosive properties of the combustible materials. It does not apply to underground mining areas, dusts of explosives that do not require atmospheric oxygen for combustion such as pyrophoric substances, propellants, pyrotechnics, munitions, peroxides, oxidizers, water-reactive elements or compounds, or other similar materials. catastrophic failures which are beyond the concept of abnormality dealt with in this standard, any risk arising from an emission of toxic gas from the dust. This standard does not apply to where a hazard might arise due to the presence of flammable gas or vapour, but the principles may be used in the assessment of a hybrid mixture (see also IEC60079‑10‑1 ). NOTE2 Additional guidance on hybrid mixtures is provided in AnnexC. This standard does not take into account the effects of consequential damage following a fire or an explosion.

Committee
EXL/31
DevelopmentNote
Supersedes BS EN 61241-10 & 07/30162732 DC. (10/2009)
DocumentType
Standard
Pages
30
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
IEC 60079-10-2:2015 Identical
EN 60079-10-2:2015 Identical

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EN 60079-32-2:2015 Explosive atmospheres - Part 32-2: Electrostatics hazards - Tests
EN 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
EN 60079-0:2012/A11:2013 EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS (IEC 60079-0:2011, MODIFIED)
IEC 60079-18:2014 RLV Explosive atmospheres - Part 18: Equipment protection by encapsulation “m”
ISO 4225:1994 Air quality General aspects Vocabulary
IEC 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
EN 60079-28:2015 Explosive atmospheres - Part 28: Protection of equipment and transmission systems using optical radiation
IEC 60050-426:2008 International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres
EN 60079-31:2014 Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"
EN 60079-11:2012 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
ISO/IEC 80079-20-2:2016 Explosive atmospheres Part 20-2: Material characteristics Combustible dusts test methods
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
EN 60079-14:2014/AC:2016 EXPLOSIVE ATMOSPHERES - PART 14: ELECTRICAL INSTALLATIONS DESIGN, SELECTION AND ERECTION (IEC 60079-14:2013/COR1:2016)
IEC 60079-31:2013 Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"
IEC 61241-2-1:1994 Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 1: Methods for determining the minimum ignition temperatures of dust
EN 60079-2:2014/AC:2015 EXPLOSIVE ATMOSPHERES - PART 2: EQUIPMENT PROTECTION BY PRESSURIZED ENCLOSURE 'P' (IEC 60079-2:2014)

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