IEC 61000-4-3 Testing for Radiated Immunity

What is IEC 61000-4-3?

IEC 61000-4-3 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the test methods and requirements for radiated immunity testing of equipment against electromagnetic fields. It focuses on evaluating the equipment's ability to perform as intended while being exposed to various levels of radiated electromagnetic fields.

IEC 61000-4-3 Testing Procedures

IEC 61000-4-3 outlines a comprehensive set of procedures for radiated immunity testing. These procedures involve subjecting the equipment under test to controlled levels of electromagnetic radiation to evaluate its performance and susceptibility. Here are the key steps involved in IEC 61000-4-3 testing:

  1. Test Setup: A specialized test setup is prepared, including an anechoic chamber or a shielded room to ensure controlled electromagnetic field conditions. Test equipment, such as signal generators and power amplifiers, is calibrated and connected.
  2. Test Parameters: The standard defines the specific test parameters, including the frequency range, power levels, modulation, and duration of the radiated electromagnetic fields applied during the test.
  3. Test Execution: The equipment under test is exposed to the radiated electromagnetic fields in accordance with the specified test parameters. The behavior, performance, and functionality of the equipment are carefully monitored and analyzed during the test.
  4. Performance Criteria: The test results are compared against the performance criteria specified in IEC 61000-4-3. These criteria define the acceptable levels of disturbance and ensure that the equipment operates as intended without any significant degradation or malfunctions.
  5. Compliance Assessment: Based on the test results, a compliance assessment is conducted to determine whether the equipment meets the requirements of IEC 61000-4-3. Any deviations or failures are documented and addressed accordingly.

Temporary or Portable Test Setup Options for IEC 61000-4-3 

  1. RF Tents
  2. GTEM's
  3. RF Absorber Panels
  4. Portable Shielded Enclosures

IEC 61000-4-3 Test Setup

IEC 61000-4-3 Test Setup Diagram

IEC 61000-4-3 Solutions

Test Setup Example Radiated Immunity in a GTEM