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ISO/IEC 80079-38-ed.1.0
Explosive atmospheres - Part 38: Equipment and components in explosive atmospheres in underground mines
Translate name
STANDARD published on 18.2.2016
The information about the standard:
Designation standards: ISO/IEC 80079-38-ed.1.0
Publication date standards: 18.2.2016
SKU: NS-942838
The number of pages: 113
Approximate weight : 370 g (0.82 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Explosion protectionElectrical apparatus for explosive atmospheres
Annotation of standard text ISO/IEC 80079-38-ed.1.0 :
ISO/IEC 80079-38:2016 is published as a dual logo standard and specifies the explosion protection requirements for the design, construction, assessment and information for use (maintenance, repair, marking) of equipment that may be an individual item or form an assembly. This includes machinery and components for use in mines susceptible to explosive atmospheres of firedamp and/or combustible dust. The standard atmospheric conditions (relating to the explosion characteristics of the atmosphere) under which it may be assumed that equipment can be operated are: - temperature -20 °C to 60 °C; - pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); - and air with normal oxygen content, typically 21 % v/v. This part of ISO/IEC 80079 applies for equipment and components according to EPL Mb to be used in explosive atmospheres containing firedamp and/or combustible dust. For equipment and components according to EPL Ma, the requirements of this standard and of ISO 80079-36 and IEC 60079-0 apply. It is necessary to take account of external conditions to the equipment which may affect the hazard and the resultant protection measures. These measures may include ventilation, gas detection or gas drainage. This part of ISO/IEC 80079 also deals with the prevention of ignitions of explosive atmospheres caused by burning (or smouldering) of combustible material such as fabric fibres, plastic "O"-rings, rubber seals, lubricating oils or greases used in the construction of the equipment if such items could be an ignition source. For example, the mechanical failure of rotating shaft bearings can result in frictional heating that ignites its plastic cage, plastic seal or lubricating grease. Detailed requirements and test procedures for the fire protection of conveyer belts are not part of this part of ISO/IEC 80079. Keywords: explosive atmospheres in underground mines, combustible dust ISO/IEC 80079-38:2016 est publiee en tant que norme sous double logo et specifie les exigences relatives aux techniques de protection contre lexplosion au niveau de la conception, de la construction, de levaluation et des informations sur lutilisation (maintenance, reparation et marquage) des appareils qui peuvent etre des elements individuels ou faire partie dun assemblage. Ces appareils comprennent les machines et les composants prevus pour etre utilises dans les mines pouvant presenter des risques lies au grisou et/ou poussieres combustibles. Les conditions atmospheriques normales (relatives aux caracteristiques de lexplosion de latmosphere), selon lesquelles il peut etre pris pour hypothese que les appareils peuvent fonctionner, sont les suivantes: - temperature de -20 °C a 60 °C; - pression de 80 kPa (0,8 bar) a 110 kPa (1,1 bar); - et air a teneur normale en oxygene, generalement, typiquement 21 % v/v. La presente partie de lISO/IEC 80079 sapplique aux appareils et aux composants selon EPL Mb destines a etre utilises en atmospheres explosives contenant le grisou et/ou les poussieres combustibles. Les exigences de la presente norme, de lISO 80079-36 et de lIEC 60079-0 sappliquent aux appareils et aux composants selon EPL Ma. Les conditions externes doivent etre prises en consideration pour les appareils qui peuvent affecter les dangers et les mesures de protection qui en resultent. Ces mesures peuvent inclure la ventilation, la detection de gaz et le captage de gaz. La presente partie de lISO/IEC 80079 traite egalement de la prevention des inflammations des atmospheres explosives provoquees par la combustion (ou le feu couvant) de materiaux combustibles tels que les fibres textiles, les joints toriques en matieres synthetiques, les joints detancheite en caoutchouc, les huiles et graisses de lubrification qui sont necessaires a lappareil lorsque ces elements pourraient representer une source dinflammation. Lechauffement provoque par friction par exemple en raison dune defaillance dordre mecanique ou du palier darbre peut enflammer la cage en plastique, le joint en plastique lui-meme ou le lubrifiant. Les exigences detaillees et les procedures dessai pour la protection contre lincendie des courroies transporteuses ne font pas partie de la presente partie de lISO/IEC 80079. Mots cles: utilises dans les mines souterraines grisouteuses, poussieres combustibles
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