GB/T 20549-2006
Replaced
GB/Z 42004-2022
Active
National standards
GB/Z 42004-2022 Consideration 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
GB/Z 42004-2022 Consideration 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
Basic Information
Standard Code:
GB/Z 42004-2022
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Electromagnetic compatibility
ICS Name:
\nElectromagnetic compatibility integration
Publish Date:
2022-10-12
Implement Date:
2023-05-01
Pages:
25 pages
Scope
This document provides information about the available data related to reference impedance and the factors to be considered when determining reference impedance. These reference impedances were previously included in IEC 60555 and are now incorporated into certain parts of the IEC 61000-3 series.
Additionally, this document provides information about the impedance of public power supply networks with a supply current capacity of greater than or equal to 100 A per phase.
This document is applicable to obtaining information about the reference impedance and the impedance of public power supply networks for determining the interference characteristics of electrical equipment (with a rated current of less than or equal to 75 A per phase).
Development Information
Referenced Standards
IEC 61000-3-3
IEC 61000-3-11
IEC 61000-3-12
Adopt standards
IEC/TR 60725:2012
Related Standards
GB/T 18039.8-2012
Active
GB/T 18039.8-2012 Electromagnetic compatibility—Environment—Description of HEMP environment—Conducted disturbance
GB/T 13837-2012
Replaced
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GB/T 18039.9-2013
Active
GB/T 18039.9-2013 Electromagnetic compatibility—Environment—Compatibility levels for low-frequency conducted disturbances and signaling in public medium-voltage power supply systems
GB/T 30556.7-2014
Active
GB/T 30556.7-2014 Electromagnetic compatibility—Installation and mitigation guidelines—Degrees of protection provided by enclosures against electromagnetic disturbances(EM code)
GB/Z 30556.3-2017
Active