IEC 61000-4-4 Electrical Fast Transient/Burst (EFT) Immunity Testing
Radiometrics Midwest Corporation provides IEC 61000-4-4 electrical fast transient/burst (EFT) immunity testing for electronic and electrical equipment at our A2LA-accredited EMC laboratory in Romeoville, Illinois.
IEC 61000-4-4 evaluates the immunity of equipment to repetitive fast electrical transients that can occur during switching of inductive loads, relay contacts, motors, and other electrical or electromechanical devices.
Radiometrics performs EFT/burst immunity testing using the test levels, coupling methods, polarities, durations, and performance criteria required by the applicable product standard or customer test specification.
What Does IEC 61000-4-4 Testing Evaluate?
IEC 61000-4-4 testing applies controlled bursts of fast electrical transients to applicable power, signal, control, and communication connections while the equipment under test (EUT) is operating and being monitored.
The test is intended to reproduce transient disturbances associated with switching events that may be encountered in the equipment’s electromagnetic environment.
During testing, the EUT is monitored for unintended operation, resets, communication errors, loss of function, data errors, or other performance changes that may affect its ability to meet the required performance criteria.
Radiometrics IEC 61000-4-4 EFT Testing Capabilities
Radiometrics performs IEC 61000-4-4 EFT/burst immunity testing on a wide range of electronic and electrical equipment. Testing can be configured for applicable power and interconnection ports according to the product standard or customer test plan.
Our EFT/burst immunity testing capabilities include:
- Testing of applicable AC and DC power connections
- Testing of applicable signal, control, and communication connections
- Positive and negative polarity testing
- Coupling methods appropriate for the connection being evaluated
- Testing at levels specified by the applicable product standard or customer specification
- Operation and monitoring of the EUT during testing
- Evaluation of multiple operating modes when required
- Engineering assistance when EFT susceptibility is observed
Planning an IEC 61000-4-4 EFT/Burst Test Program
The IEC 61000-4-4 test program depends on the applicable product standard, equipment configuration, required test levels, number and type of external connections, operating modes, and equipment monitoring requirements.
Because EFT/burst disturbances may need to be applied to multiple power, signal, control, or communication connections, identifying the applicable cables and ports before testing helps Radiometrics develop an accurate test plan and quotation.
The equipment should be configured in a representative operating condition with the cables, peripherals, and support equipment necessary to exercise and monitor its functions during testing.
Information Needed for an IEC 61000-4-4 Quote
To help Radiometrics develop an accurate EFT/burst immunity test program and quotation, please provide the following information when available:
- Applicable product standard or customer test specification
- Product description and model number
- AC or DC power requirements
- Number and type of external power, signal, control, and communication connections
- Cable lengths and configuration, when applicable
- Required peripherals and support equipment
- Operating modes to be evaluated
- Required test levels, if known
- Method used to monitor equipment performance during testing
EFT/Burst Immunity Troubleshooting
If a product experiences a performance problem during EFT/burst testing, Radiometrics can work with your engineering team to help identify the affected connection or circuit and evaluate potential corrective measures.
Where practical, changes to filtering, grounding, shielding, cable configuration, transient suppression, or other design elements can be evaluated during the test program to determine whether they improve immunity to fast electrical transients.
Schedule IEC 61000-4-4 EFT/Burst Testing
Radiometrics Midwest Corporation has provided EMC testing and engineering services since 1983. Contact us to discuss your IEC 61000-4-4 EFT/burst immunity testing requirements, equipment configuration, scheduling, or quotation needs.