What is the IEC 61000-4-6 criteria?

The IEC 61000-4-6 criteria, also known as CISPR 22, is an international standard that defines the requirements for conducted disturbances in the frequency range of 150 kHz to 30 MHz. It provides guidelines for measuring and evaluating the immunity of electrical equipment to conducted disturbances induced by radio-frequency fields typically generated by nearby electronic devices or radio transmitters.

Importance of complying with IEC 61000-4-6 criteria

Compliance with the IEC 61000-4-6 criteria is essential for manufacturers and users of electrical equipment. Non-compliance can result in electromagnetic interference (EMI) issues, leading to degraded performance, malfunctioning, or even safety hazards. By adhering to these criteria, manufacturers ensure that their products can operate reliably in environments with high levels of conducted disturbances, providing a higher level of product quality and user satisfaction.

Requirements of the IEC 61000-4-6 criteria

The IEC 61000-4-6 standard sets out specific requirements for testing and measurement procedures to evaluate the immunity of electronic products against conducted disturbances. These requirements include defining test levels, test setups, and test methods. The equipment under test should be subjected to various types of disturbances, such as continuous sinusoidal signals, modulated signals, and broadband noise, while ensuring that functional performance criteria are met.

Compliance testing and certification

Manufacturers often conduct compliance testing according to the IEC 61000-4-6 criteria during the development and production stages of their products. This involves performing measurements using specialized test equipment, including signal generators, power amplifiers, and spectrum analyzers. Following successful testing, manufacturers can obtain certification for their products, indicating that they meet the requirements of the IEC 61000-4-6 standard and are deemed immune to conducted disturbances within the specified frequency range.