AC or DC for safety leakage current testing?

Testing with AC gear AC, short for "alternating current". Generally refers to the size and direction of the voltage or current varying periodically from time to time. Its most basic form is sinusoidal current. The standard frequency of our AC power supply is set at 50 Hz. The form of alternating current change with time can be various. Different changes in the form of alternating current its scope of application and the effect produced also, resistance test can not remove the Y capacitance test. Whether the test passes or not depends on how it is described in the standard, which varies slightly from product to product. Generally speaking, as long as less than 100mA can be

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