标准编号：ISO 80079-37:2016
中文名称：爆炸性气体环境 第37部分：非电子防爆设备 大气层 非电子类型的保护建筑安全“c”,控制点火 “b”来源,液体浸“k”
英文名称：Explosive atmospheres — Part 37: Non-electrical equipment for explosive atmospheres — Non-electrical type of protection constructional safety ''c'', control of ignition sources ''b'', liquid immersion
发布日期：2016-02
标准范围
This part of ISO/IEC 80079 specifies the explosion protection requirements for the design,construction, assessment and information for use (maintenance, repair, marking) ofequipment that may be an individual item or form an assembly.This includes machinery and components for use in mines susceptible to explosiveatmospheres of firedamp and/or combustible dust. The standard atmospheric conditions(relating to the explosion characteristics of the atmosphere) under which it may be assumedthat 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 beused in explosive atmospheres containing firedamp and/or combustible dust.NOTE 1 In some countries, there might be differences according to the classification, e.g. Mb is similar tocategory M2 in the European Union.For equipment and components according to EPL Ma, the requirements of this standard andof ISO 80079-36 and IEC 60079-0 apply.NOTE 2 A standard with additional requirements for EPL Ma is under preparation.It is necessary to take account of external conditions to the equipment which may affect thehazard and the resultant protection measures. These measures may include ventilation, gasdetection or gas drainage.This part of ISO/IEC 80079 also deals with the prevention of ignitions of explosiveatmospheres caused by burning (or smouldering) of combustible material such as fabricfibres, plastic ”O”-rings, rubber seals, lubricating oils or greases used in the construction ofthe equipment if such items could be an ignition source. For example, the mechanical failureof rotating shaft bearings can result in frictional heating that ignites its plastic cage, plasticseal or lubricating grease.Detailed requirements and test procedures for the fire protection of conveyer belts are notpart of this part of ISO/IEC 80079.
立即下载标准文件