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  • BSI
    BS EN 60079-31:2014 Explosive atmospheres - Equipment dust ignition protection by enclosure \"t\"
    Edition: 2014
    $313.97
    / user per year

Description of BS EN 60079-31:2014 2014

IEC 60079-31:2013 is applicable to electrical equipment protected by enclosure and surface temperature limitation for use in explosive dust atmospheres. It specifies requirements for design, construction and testing of electrical equipment and Ex Components. This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard takes precedence. This standard does not apply to dusts of explosives, which do not require atmospheric oxygen for combustion, or to pyrophoric substances. This standard does not apply to electrical equipment or Ex Components intended for use in underground parts of mines as well as those parts of surface installations of such mines endangered by firedamp and/or combustible dust. This standard does not take account of any risk due to an emission of flammable or toxic gas from the dust. Consideration of additional protective measures is required where the application of electrical equipment is in atmospheres, which can contain combustible dust as well as explosive gas, whether simultaneously or separately. Where the electrical equipment has to meet other environmental conditions, for example, protection against ingress of water and resistance to corrosion, additional measures can be necessary. The measures used should not adversely affect the integrity of the enclosure. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. The major technical changes include:
- The marked maximum surface temperature shall be measured on the external surfaces of the enclosure and the surfaces of the internal components for equipment with types of protection "ta";
- Additional protection for arcing and sparking parts for "ta";
- Test for internal enclosure for level "ta" added. Keywords: explosive dust atmospheres

This publication is to be read in conjunction with /2.

Standard NumberBS EN 60079-31:2014
TitleExplosive atmospheres - Equipment dust ignition protection by enclosure "t"
StatusWithdrawn
Publication Date2014-07-31
Withdrawn Date2024-03-04
ReplacesBS EN 60079-31:2009
Identical National Standard OfIEC 60079-31:2013, EN 60079-31:2014
DescriptorsElectrical equipment, Design, Thermal protection, Verification, Electric enclosures, Flammable atmospheres, Dust explosions, Ignition, Electrical safety, Protected electrical equipment, Dust, Type testing, Explosive atmospheres
ICS29.260.20 Electrical apparatus for explosive atmospheres
CommitteeEXL/31
ISBN978 0 580 78740 9
PublisherBSI
Pages20

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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