30mA.
Leakage current is actually the current flowing through the insulated part of the electrical line or equipment in the absence of faults and the role of the applied voltage. Therefore, it is one of the important signs to measure the insulation of electrical appliances, and is the main indicator of product safety performance. Leakage current will be limited to a very small value, which has an important role in improving product safety performance.
In electrical products, the higher safety performance requirements of the product, the leakage current have strict requirements. Many types of household electrical products in the special requirements have clear provisions: in the type test, if the leakage current test is not qualified, is regarded as a fatal flaw, do not allow retesting, in the enterprise product factory test, many electrical products, leakage current test is a mandatory inspection program.
Extended information:
Precautions:
1, leakage current measurement is charged for measurement, the measured electrical shell is charged. Therefore, the test personnel must pay attention to safety, a variety of test room should develop safe operating procedures, in the absence of cutting off the current before, shall not touch the measured appliances.
2, in the working temperature measurement of leakage current, if the measured appliance is not through the isolation transformer power supply, the measured appliance should be colorful insulating properties of reliable material insulation pads and ground insulation. Otherwise part of the leakage current will flow directly through the ground without passing through the instrument, affecting the accuracy of the test data.
3, should minimize the impact of the environment on the test data, the test environment, temperature, humidity and pollution of the insulation surface, for the leakage current has a great impact on the temperature is high, high humidity, insulation surface is seriously contaminated, the determination of the leakage current value is larger.
Baidu Encyclopedia - Leakage Current