What is EN 61000-4-5:2019?

EN 61000-4-5:2019, also known as Electromagnetic Compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test, is an international standard that specifies the surge immunity requirements and test methods for electrical and electronic equipment. This standard is applicable to a wide range of devices such as computers, telecommunication equipment, audio/video equipment, household appliances, industrial machinery, and more.

Importance of Surge Immunity Testing

Surge events, which are transient overvoltages caused by lightning strikes, power outages, or switching operations in the electrical grid, can have a detrimental effect on electronic devices. They can lead to malfunctions, damage, or even complete failure of the equipment. Surge immunity testing according to EN 61000-4-5 ensures that devices are able to withstand these surge events and continue to function properly, providing reliable and safe operation.

Surge Immunity Test Procedures

The EN 61000-4-5 standard outlines specific test procedures to assess the surge immunity of electrical and electronic equipment. The tests involve subjecting the device to various surge waveforms with different parameters, such as amplitude, rise time, and duration. These waveforms simulate the effects of surges that can occur in real-world scenarios. The equipment is evaluated based on its ability to withstand the specified surge levels without performance degradation or damage.

Compliance and Certification

For manufacturers, compliance with the EN 61000-4-5 standard is essential to ensure their products meet the necessary surge immunity requirements. By conducting surge immunity testing, manufacturers can identify potential vulnerabilities in their devices and make design improvements to enhance their resistance to surges. Once a product passes the testing, it can receive the required certifications, such as the CE marking, indicating compliance with the relevant standards and regulations.

In conclusion, EN 61000-4-5:2019 is an important standard that addresses surge immunity testing for electrical and electronic equipment. By adhering to this standard, manufacturers can ensure their devices are resilient against surges, leading to improved performance and reliability for end-users. Surge immunity testing plays a crucial role in safeguarding equipment from surge-related damage and ensuring the uninterrupted operation of various electronic devices.