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  • BSI
    BS EN IEC 60079-10-1:2021 Explosive atmospheres - Classification of areas. Explosive gas atmospheres
    Edition: 2021
    $569.57
    / user per year

Description of BS EN IEC 60079-10-1:2021 2021

IEC 60079-10-1:2020 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 design, construction, operation and maintenance 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:
a) mines susceptible to firedamp;
b) the processing and manufacture of explosives;
c) catastrophic failures or rare malfunctions which are beyond the concept of normality dealt with in this standard;
d) rooms used for medical purposes;
e) domestic premises;
f) 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.
Flammable mists may form or be present at the same time as flammable vapour. In such case the strict application of the details in this document may not be appropriate. Flammable mists may also form when liquids not considered to be a hazard due to the high flash point are released under pressure. In these cases the classifications and details given in this document do not apply.
For the purpose of this document, an area is a three-dimensional region or space.
Atmospheric conditions include variations above and below reference levels of 101,3 kPa (1 013 mbar) and 20 °C (293 K), provided that the variations have a negligible effect on the explosion properties of the flammable substances.
In any site, irrespective of size, there may be numerous sources of ignition apart from those associated with equipment. Appropriate precautions will be necessary to ensure safety in this context. This standard is applicable with judgement for other ignition sources but in some applications other safeguards may also need to be considered. E.g. larger distances may apply for naked flames when considering hot work permits.
This document does not take into account the consequences of ignition of an explosive atmosphere except where a zone is so small that if ignition did occur it would have negligible consequences.
This third edition of IEC 60079-10-1 cancels and replaces the second edition, published in 2015, and constitutes a technical revision, see foreword for further details.

Standard NumberBS EN IEC 60079-10-1:2021
TitleExplosive atmospheres - Classification of areas. Explosive gas atmospheres
StatusDefinitive
Publication Date2021-04-12
ReplacesBS EN 60079-10-1:2015
Identical National Standard OfEN 60079-10-1 Ed.3.0, IEC 60079-10-1 Ed.3.0, IEC 60079-10-1:2020/COR1:2021
DescriptorsElectrical equipment, Electric current, Flammability, Gases, Ignition, Data, Safety measures, Protected electrical equipment, Selection, Flash point, Temperature, Chemical properties, Classification systems, Fire tests, Explosive atmospheres, Vapours, Flammable atmospheres, Hazards
ICS29.260.20 Electrical apparatus for explosive atmospheres, 13.230 Explosion protection
CommitteeEXL/31/3
ISBN978 0 539 01314 6
PublisherBSI
Pages118

The following editions for this book are also available...

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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