ELECTRICAL SAFETY TESTING
What Is Electrical Safety Testing?
Electrical safety tests are designed to ensure that any product that uses electricity is safe for use. Electrical safety tests are often set and regulated by both national and international health and safety standard agencies, with specific products subject to certain tests or regulations.
However, there are tests that are universal and many manufacturers must follow, such as:
High Voltage Test (Dielectric Voltage-withstand Test)
High voltage tests, commonly known as hipot tests are designed to stress the device under test to voltages higher than its operating voltage. In this test the insulation of the product is stressed to a greater extent than normal operating conditions and should not be breached for the product to pass.
Insulation Resistance Test
Insulation resistance test is one of the tests required by electrical safety testing standards. The procedure measures insulation resistance of the device under test (DUT), while phase and neutral are short circuited together.
Earth Bond Test
Ground bond test (also referred to as PE resistance test and ground continuity test) determines whether the safety ground circuit of the device under test can adequately handle fault current if the product should ever become defective. The measured resistance has to be lower than the indicated limit from the applicable international standards. Usual values are <500 mΩ.