有可燃性粉尘场合用电气设备.第14部分:选择和安装

[中文适用范围]： 除基本电气安全要求外，规定了电气设备和仪器及相关设备的选择以及电气设备安装的一般要求，以确保在以下区域安全使用： [外文原描述]： Specifies general requirements, additional to those required for basic electrical safety, for the selection of electrical apparatus and instruments and associated equipment, and for the installation of electrical apparatus to ensure safe use in areas where combustible dust may be present in quantities which could lead to a fire or explosion hazard. The application of electrical apparatus in atmospheres which may contain explosive gas as well as combustible dust, whether simultaneously or separately, requires additional protective measures.