爆炸性环境第36部分:爆炸性环境用防爆电气设备的基本方法和要求(ISO 80079-36:2016)

[中文适用范围]： ISO/IEC 80079的这一部分规定了具有潜在点火源的非电气危险区域设备、危险区域部件、保护系统、设备和组件的设计、构造、测试和标记的基本程序和要求并适用于潜在爆炸性环境。 不带储能的手动工具和手动操作装置不属于本标准的范围。 当静态自主过程设备不属于本标准中提到的设备的一部分时，本标准不涉及静态自主过程设备的安全性。 注 1：静态自主过程单元包括，例如，没有自己的电源的储罐、容器、固定管道和手动操作阀门，它们在操作过程中可能产生潜在的点火源。 本标准没有规定安全要求，除非它们直接涉及可能导致爆炸的着火风险。 假定设备可以运行的通常大气条件（与大气的爆炸特性相关）为： ——温度范围 -20 °C 至 +60 °C； ——压力 80 kPa (0.8 bar) 至 110 kPa (1.1 bar)；和; ——含氧量通常为 21% (v/v) 的空气。 这种气氛也可能存在于装置内部。 另外，由于装置内部的操作压力和/或温度的波动，外部大气可能通过自然交换被吸入装置中。 注2：虽然上面列出的通常大气条件表明大气温度范围为-20℃至+60℃，但除非另有规定和标记，设备的通常环境温度范围为-20℃至+40℃。 假设 -20°C 至 +40°C 适用于大多数设备；制造所有防爆设备以适应正常大气中 +60 °C 的较高温度范围会导致不必要的设计限制。 注 3：本标准的要求也可用于设计、制造、测试和标记用于本标准上述范围之外的大气中的设备。 然而，在这种情况下，着火危险评估、预期的保护类型、附加测试（如有必要）、制造商的技术文件和用户说明必须清楚地证明设备对所遇到的条件的适用性。 [外文原描述]： 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