Electrical Safety Testing

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.

Leakage Current

There are mainly two type of leakage current measuring methods: Touch Current (TC) and Protective Conductor Current (PCC). Touch current is the current that flows when a human body touches the equipment. Protective conductor current is the current that flows from the unit through the grounding conductor into a household ground.

Why carry out electrical safety tests?

Company Liability

Companys are legally responsible for ensuring their customers are not exposed to hazards.

Reliability

Ensure product standards are repeatedly met and maintained.

Quality

Idenify defective devices that have been damaged during their assembly.

User Safety

Devices have to reach a required product safety standard in accordance with regulations.
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