What is IEC 61000-4-145: 2019 ?

Title: Understanding IEC 61000-4-145: 2019: A Technical Article on Electromagnetic Compatibility and Interference

IEC 61000-4-145: 2019 is an essential standard for ensuring the electromagnetic compatibility (EMC) of electrical and electronic equipment (1) connected to the electric power network. This international standard, also known as Electromagnetic compatibility - Part 4-145: 2019, is developed by the International Electrotechnical Commission (IEC) and focuses on harmonics and interharmonics, which are disturbances caused by non-sinusoidal electrical waveforms.

In this technical article, we will delve into the purpose and scope of IEC 61000-4-145: 2019, the testing process, and the evaluation criteria. We will also discuss the immunity tests and their importance in assessing the performance and susceptibility of electronic devices.

Purpose of IEC 61000-4-145: 2019:

IEC 61000-4-145: 2019 aims to define a set of conditions that simulate realistic electromagnetic environments. By subjecting electrical and electronic equipment to these tests, manufacturers can assess the performance and susceptibility of their products to electromagnetic interference from radio transmitters or other sources. In other words, the standard provides a framework for evaluating the (EMC) of products, which is critical for ensuring their reliability and performance in various applications, such as industrial, commercial, and residential settings.

Testing Process:

IEC 61000-4-145: 2019 provides a standardized testing procedure for evaluating the EMC of electrical and electronic equipment. The standard defines four test levels, which are designed to simulate different electromagnetic environments. These test levels are:

Type A: This is the most stringent test level, which is intended to evaluate the equipment's immunity to electromagnetic interference from all sources, including radio transmitters.

Type B: This test level is designed to evaluate the equipment's immunity to electromagnetic interference from sources such as radio transmitters, , .Type C: This test level is designed to evaluate the equipment's immunity to electromagnetic interference from sources such as radio transmitters, , .Type D: This test level is designed to evaluate the equipment's immunity to electromagnetic interference from sources such as radio transmitters, other low frequency interference sources, and software-defined radio (SDR).

Evaluation Criteria:

To ensure that the equipment meets the requirements of IEC 61000-4-145: 2019, manufacturers must perform the tests and meet the specified evaluation criteria. These criteria are based on the equipment's immunity to electromagnetic interference from different sources.

The standard defines four evaluation criteria, which are based on the equipment's immunity to electromagnetic interference from different sources. These criteria are as follows:

1.(V): This criterion evaluates the equipment's immunity to electrical noise generated by an external electromagnetic source, such as radio transmitters.

2.(I): This criterion evaluates the equipment's immunity to electrical currents generated by an external electromagnetic source, such as radio transmitters.

3.(X): This criterion evaluates the equipment's immunity to electrical interference caused by a magnetic field.

4.(X): This criterion evaluates the equipment's immunity to electrical interference caused by an alternating current (AC) source.

Conclusion:

IEC 61000-4-145: 2019 is an essential standard for ensuring the EMC of electrical and electronic equipment connected to the electric power network. By subjecting their products to the testing process, manufacturers can evaluate the equipment's performance and susceptibility to electromagnetic interference from different sources. The standard provides a standardized testing procedure and evaluation criteria to ensure that the equipment meets the requirements for reliability and performance.

(1) The term electrical and electronic equipment (2) refers to a wide range of devices.