使用隔爆型电气设备时要注意的事项

    使用隔爆型电气设备时要注意的事项

    1.高电压、大功率或大电流的隔爆电器产品的外壳要足够大，以保证良好的散热功能和耐电弧能力，100w以上的隔爆型灯具还应在外壳上铸有散热片，尤其注意防爆标志上温度组别较高的电气产品

    2.选用隔爆型电气设备时，一定要选用隔爆外壳壁厚的产品，这不仅保证其可靠的耐爆性能，重要的是保证在打开隔爆外壳安装、维修后外壳能够仍然保证其耐爆性能和隔爆性能，而不至于隔爆面变形失效。

    3.要特别注意电缆引入装置的隔爆性能，它是隔爆型电气设备*薄弱的防爆部位。

    三、购防爆电气产品还应充分考虑应用场所的特殊环境条件的影响，例如:化学腐蚀、盐雾、高温、低温、沙尘雨水侵袭、振动等，这些因素都会对电气的防爆性能和电气性能造成破坏。
 

    To pay attention to the problem of selecting the electrical equipment of the explosion-proof electrical equipment
    1 high voltage, high power or high current electrical insulation product of the shell is to be large enough to ensure good heat dissipation function and resistance to arc, 100W above the insulation type lamps should be cast in the case of heat sink, in particular, pay attention to the high temperature group on the thermal resistance of electrical products
    2 when the electric equipment is used, we must choose the product which is the wall thickness of the wall, which not only ensures the reliable performance of the explosion proof, but it is important to ensure that the insulation shell is installed and maintained.
    3 special attention should be paid to the isolation performance of the cable, which is the weakest part of the explosion proof electrical equipment.
    Three, the purchase of explosion-proof electrical products should also take full account of the special environmental conditions of the application, such as: chemical corrosion, salt spray, high temperature, low temperature, dust, rain, vibration, etc., these factors will be electrical explosion resistance and electrical properties.