GOST R IEC 61241-1-2-1999 易燃粉尘环境中使用的电动仪器.原有1:2.有护套和表面温度限制保护的电动仪器.选择,安装与维护
Electrical apparatus for use in the presence of combustible dust. Past 1:2. Electrical apparatus protected by enclosures and surface temperature limitation. Selection, installation and maintenance