1. Fan is suitable for the temperature in the cabinet higher than the ambient temperature, but when the internal and external circulation in the closed environment requires isolation, industrial air conditioner should also be considered.

2、空调采用压缩机制冷原理进行强 力制冷，实现对电气控制柜内部温度的恒温控制，由于电气控制柜内外空气循环相互隔绝，故可以有效地防止有害、潮湿的气体及粉尘进入柜内。

2. The air conditioner adopts the compressor refrigeration principle for strong refrigeration to realize the constant temperature control of the internal temperature of the electrical control cabinet. Because the air circulation inside and outside the electrical control cabinet is isolated from each other, it can effectively prevent harmful and humid gases and dust from entering the cabinet.

空调按照其安装方式，一般可以分为：壁挂式（侧装式、嵌入式及柜内架装式）和顶装式。 空调的选型也是根据柜内温度与环境温度的差值以及柜内热损耗，从而确定空调所需要的制冷量来选取的。

According to its installation mode, air conditioning can be generally divided into wall mounted (side mounted, embedded and cabinet mounted) and top mounted. The selection of air conditioning is also based on the difference between the cabinet temperature and the ambient temperature and the heat loss in the cabinet, so as to determine the cooling capacity required by the air conditioning.

夏季是高温的季节，解决机箱机柜的散热问题，才能保证设备正常的运行。

Summer is the season of high temperature. To solve the heat dissipation problem of the cabinet can ensure the normal operation of the equipment.