Importance of Partial Discharge Measurement for Electrical Safety

Partial discharge is a localised electrical discharge that only partially bridges the insulation between conductors. In components such as optocouplers and transformers, partial discharge can compromise insulation, leading to safety hazards, performance degradation, or even system failure.

Over time, partial discharge can cause gradual insulation breakdown in electronic components, negatively affecting their safety, reliability, and lifespan, particularly in high-voltage and high-frequency applications.

To address these risks, electrical safety standards require partial discharge measurements to prevent insulation failure. Standards developed by IEC TC22, such as IEC 62477-1 and IEC 62040-1, already mandate partial discharge testing. Additionally, the IEC 62368-1 standard is expected to introduce partial discharge requirements in its 5th edition. Different standards specify varying criteria for when partial discharge measurements must be performed, as well as the associated procedures and acceptable limits.

SIQ provides comprehensive support for the partial discharge measurement of various electronic components, with capabilities up to 10 kVrms. Reach out to us today for assistance in achieving compliance with international electrical safety standards and ensuring the safety and reliability of your products!

More information:
Rok Lešnik
E-mail: rok.lesnik@siq.si
Tel.: +386 1 4778 003