设备外壳组装对内部的保护，针对水的渗入会造成的设备无法使用等级。
Protection of the equipment inside the enclosure against harmful ingress of water.
自动手动转换开关板应为独立式，室内型、金属外壳装置，保护等级为IP42。
Auto transfer switch panels shall be free standing, indoor type, metal enclosed units with degree of protection IP42.
进入电子部件外壳的油是非常不寻常的，因为带有任何匹配连接器的RHM传感器是IP67保护，集成电缆具有IP68防护等级。
Oil entering in the electronics housing is very unusual because the RHM Sensor with any mating connector is IP67 protection and with integral cable has IP68 protection rating.
双金属温度计订货时须分别注明产品的型号、测量范围、安装螺纹、保护管长度外壳直径、准确度等级等技术参数。
The bimetallic thermometer should note the products model. test range, fix screw, protect pipe length, shield diameter, accuracy and other technique parameter.
双金属温度计订货时须分别注明产品的型号、测量范围、安装螺纹、保护管长度外壳直径、准确度等级等技术参数。
The bimetallic thermometer should note the products model. test range, fix screw, protect pipe length, shield diameter, accuracy and other technique parameter.
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