Measurement power supply of air duct heater

The cold insulation resistance between the power inlet and the metal casing shall not be less than 2 megohms, and the relative humidity of the use environment shall not be greater than 185%. The diversion baffle is installed in the simplified Chinese, which can make the air smooth and evenly heated. The control cabinet is placed in a dry, ventilated and convenient operation place. The air heater shell and control cabinet shell are reliably grounded.