What is IEC 61000-4-187:2019 ?

Title: What is IEC 61000-4-187:2019 and IEC 61000-4-174:2019?

Introduction:

Electromagnetic compatibility (EMC) is an essential aspect of modern technology, as it ensures that electrical and electronic equipment can function properly in the presence of electromagnetic interference (EMI). IEC 61000-4-187:2019 and IEC 61000-4-174:2019 are two important international standards that define the testing and measurement techniques used for EMC. In this article, we will discuss the purpose of these standards and the testing process they provide.

IEC 61000-4-187:2019:

IEC 61000-4-187:2019 is an international standard that defines a set of conditions to simulate realistic electromagnetic environments. The main purpose of this standard is to ensure that electrical and electronic equipment is capable of operating without being affected by electromagnetic interference (EMI) from radio transmitters or other sources. IEC 61000-4-187:2019 provides guidelines for conducting the tests, test levels, and evaluation criteria to assess the performance and susceptibility of products.

The testing process for IEC 61000-4-187:2019 involves subjecting electrical and electronic equipment to the tests defined in the standard. These tests are designed to measure the immunity of the products against electromagnetic interference caused by radio transmitters. The standard defines different test levels, which are levels of electromagnetic interference that the equipment is expected to withstand.

IEC 61000-4-174:2019:

IEC 61000-4-174:2019 is another international standard that deals with electromagnetic compatibility (EMC) testing and measurement techniques. The primary purpose of this standard is to provide a standardized method for testing and measuring the harmonics and interharmonics produced by electrical devices when connected to an AC power supply.

Harmonics are current or voltage components that are integer multiples of the fundamental frequency (typically 50 or 60 Hz), while interharmonics are non-integer multiples of the fundamental frequency. IEC 61000-4-174:2019 defines acceptable limits for harmonics and interharmonics emissions, which ensures that electronic equipment does not cause undue interference with other devices sharing the same power network.

The testing process for IEC 61000-4-174:2019 involves subjecting electrical and electronic equipment to the tests defined in the standard. These tests are designed to measure the emissions of harmonics and interharmonics produced by the equipment when connected to an AC power supply.

Conclusion:

IEC 61000-4-187:2019 and IEC 61000-4-174:2019 are important international standards that define the testing and measurement techniques used for EMC. These standards provide guidelines for conducting the tests, test levels, and evaluation criteria to ensure that electrical and electronic equipment is capable of operating without being affected by electromagnetic interference. By subjecting electrical and electronic equipment to these tests, manufacturers can assess the performance and susceptibility of their products and identify potential issues related to power quality and assist in the development of more efficient and reliable electrical systems.