What is IEC 61000-4-134:2019 ?

Title: IEC 61000-4-134:2019: A Technical Article on Electromagnetic Compatibility and Interference

IEC 61000-4-134:2019 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 4-13: Testing and measurement techniques - Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity tests," is developed by the International Electrotechnical Commission (IEC) (2). The standard defines a set of conditions that simulate realistic electromagnetic environments and subject electrical and electronic equipment to tests to assess their performance and susceptibility to electromagnetic interference from radio transmitters or other sources.

What is IEC 61000-4-134:2019?

IEC 61000-4-134:2019 is an international standard that relates to the testing and measurement techniques used for EMC. Specifically, it focuses on immunity tests for electrical and electronic equipment against electromagnetic fields caused by radio transmitters. The standard provides guidelines for conducting the tests, test levels, and evaluation criteria to ensure that devices can function properly in the presence of electromagnetic interference (3).

What is the purpose of IEC 61000-4-134:2019?

The main purpose of IEC 61000-4-134:2019 is 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. The standard aims to ensure that products are capable of operating without being affected by electromagnetic interference from radio transmitters or other sources (4).

The Testing Process:

To ensure that their products meet the requirements of IEC 61000-4-134:2019, manufacturers must conduct tests that simulate realistic electromagnetic environments. The testing process typically includes the following steps:

Step 1: Define the electromagnetic environment

The first step in the testing process is to define the electromagnetic environment in which the equipment will be tested. This involves identifying the sources of electromagnetic interference, such as radio transmitters, and determining the characteristics of the electromagnetic field, such as the frequency and intensity of the interference (5).

Step 2: Select the appropriate test method

Once the electromagnetic environment has been defined, the next step is to select the appropriate test method for the equipment. For example, to test the immunity of a device to electromagnetic interference from a radio transmitter, a device may be subjected to a " immunity test" in which it is exposed to a known frequency and intensity of electromagnetic interference from the transmitter.

Step 3: Conduct the test

The next step is to conduct the test in the electromagnetic environment. This involves setting up the equipment to be tested, connecting it to the power supply, and exposing it to the electromagnetic interference from the radio transmitter (6).

Step 4: Analyze the test results

After the test has been conducted, the next step is to analyze the test results to determine the performance and susceptibility of the equipment (7). This involves measuring the performance of the equipment in the presence of the electromagnetic interference, as well as evaluating the equipment's immunity to the interference (8).

Conclusion:

IEC 61000-4-134:2019 is an essential standard for ensuring the electromagnetic compatibility of electrical and electronic equipment. By subjecting their products to tests that simulate realistic electromagnetic environments, manufacturers can assess the performance and susceptibility of their products to electromagnetic interference from radio transmitters or other sources. The testing process includes defining the electromagnetic environment, selecting the appropriate test method, conducting the test, and analyzing the test results.

References:

IEC 61000-4-134:2019.

IEC 61000-4-134:2019 (Electromagnetic compatibility - Part 4-13: Testing and measurement techniques - Harmonics.