Explosive atmospheres - Part 36: Non-electrical equipment for
explosive atmospheres - Basic method and requirements
爆炸性环境.第36部分:非电气设备
爆炸性环境.基本方法和要求
发布日期:
2016-02-26
ISO 80079-36:2016规定了这些产品的非电气防爆设备、防爆部件、保护系统、装置和组件的设计、施工、测试和标记的基本方法和要求,这些产品具有潜在的火源,拟用于爆炸性环境。本标准不包括手动工具和不带储能装置的手动设备。当静态自动工艺设备不是本标准所指设备的一部分时,本标准不涉及其安全性。
本标准未规定安全要求,但与可能导致爆炸的点火风险直接相关的要求除外。可以假设设备可以在以下标准大气条件下运行(与大气的爆炸特性有关):
-温度-20°C至60°C
-压力80千帕(0.8巴)至110千帕(1.1巴);和
-含氧量正常的空气,通常为21%v/v。设备内部也可能存在此类空气。此外,由于设备内部工作压力和/或温度波动而产生的自然呼吸可将外部大气吸入设备内部。
ISO/IEC 80079的本部分规定了爆炸性环境用设备的设计和制造要求,符合I、II和III组的所有设备防护等级(EPL)。本标准补充和修改了IEC 60079-0的一般要求,如文件范围表1所示。
关键词:机械防爆设备
ISO 80079-36:2016 specifies the basic method and requirements for design, construction, testing and marking of non-electrical Ex equipment, Ex Components, protective systems, devices and assemblies of these products that have their own potential ignition sources and are intended for use in explosive atmospheres. Hand tools and manually operated equipment without energy storage are excluded from the scope of this standard. This standard does not address the safety of static autonomous process equipment when it is not part of equipment referred to in this standard. This standard does not specify requirements for safety, other than those directly related to the risk of ignition which may then lead to an explosion. 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. Such atmospheres can also exist inside the equipment. In addition, the external atmosphere can be drawn inside the equipment by natural breathing produced as a result of fluctuations in the equipment's internal operating pressure, and/or temperature. This part of ISO/IEC 80079 specifies the requirements for the design and construction of equipment, intended for explosive atmospheres in conformity with all Equipment Protection Levels (EPLs) of Group I, II and III. This standard supplements and modifies the general requirements of IEC 60079-0, as shown in Table 1 in the Scope of the document.
Keywords: mechanical explosion protected equipment