New edition of IEC 61000-4-24 for EMC published

IEC 61000-4-24:2015 for Electromagnetic compatibility is now published. This is the second edition of the standard. It is for test methods for protective devices for HEMP conducted disturbance.

IEC 61000-4-24 deals with methods for testing protective devices for HEMP conducted disturbance. It includes two-terminal elements, such as gas discharge tubes, varistors, and two-port SPDs, such as HEMP combination filters. It covers testing of voltage breakdown and voltage-limiting characteristics but also methods to measure the residual voltage and/or the residual current, peak rate of rise and root action for the case of very fast changes of voltage and current as a function of time. This standard does not cover insertion loss measurement methods.

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