GB/Z 42004-2022
ActiveConsideration of reference impedances and public supply network impedances for use in determining the disturbance characteristics of electrical equipment having a rated current ≤75 A per phase
确定电气设备（每相额定电流小于或等于75A）骚扰特性用的参考阻抗和公用供电网络阻抗的考虑
Application Summary AI generated
This standard provides guidance on selecting appropriate reference impedances and public supply network impedances for testing electrical equipment with a rated current of up to 75 A per phase. It is applied in electromagnetic compatibility (EMC) testing to ensure consistent evaluation of disturbance characteristics, such as harmonics or voltage fluctuations, across different low-voltage public supply networks. The standard is relevant for manufacturers and test laboratories assessing equipment intended for connection to public power grids.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.