It is concluded that some attentions must be paid in the design, installation and use of flameproof electrical apparatus.
提出了隔爆型电气设备设计、安装、使用应注意的方面。
2
Copper busbars are important in high-low electric apparatus, they have both effect on installation and electric conduction, therefore, the processing technic of copper busbar is important especially.
铜排在高、低压电气设备中非常重要，而且既起安装作用又起导电作用，所以铜排的加工工艺地位更显重要。
3
This paper presents relevant standards of pressure vessel in refrigerating apparatus, and puts forward some experience in the course of installation, usage and management of pressure vessel.