GB/T 17625.7-2013: Electromagnetic compatibility -- Limits -- Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤75 A and subject to conditional connection

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Scope

This Part is concerned with the emission of voltage changes, voltage
fluctuations and flicker produced by equipment and impressed on the public
low-voltage supply system.
This Part specifies the limits of voltage changes produced by equipment tested
under specified conditions.
This Part is primarily applicable to electrical and electronic equipment having a
rated input current from 16 A up to and including 75 A, which is intended to be
connected to public low-voltage distribution systems having nominal system
voltages of 220 V, line-to-neutral at 50 Hz, and which is subject to conditional
connection.
This Part is also applicable to equipment within the scope of GB 17625.2 that
does not meet the limits when tested or evaluated with reference impedance
Zref and is therefore subject to conditional connection. Equipment which meets
the requirements of GB 17625.2, is excluded from this Part.
Equipment tests made in accordance with this Part are type tests.
NOTE. The flicker limits specified in this part, being the same as those in GB 17625.2, are
based on the subjective severity of the flicker imposed on the light from 220 V/60 W coiled-coil
filament lamps when subjected to fluctuations of the supply voltage. For systems with nominal
voltages less than 220 V, line-to-neutral and/or frequency of 60 Hz, the limits and reference
circuit values are under consideration.

Basic Data

Standard ID	GB/T 17625.7-2013 (GB/T17625.7-2013)
Description (Translated English)	Electromagnetic compatibility -- Limits -- Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ��75 A and subject to conditional connection
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	L06
Classification of International Standard	33.100.10
Word Count Estimation	11,123
Quoted Standard	GB/T 4365; GB 17625.2; IEC 60725
Adopted Standard	IEC 61000-3-11-2000, MOD
Regulation (derived from)	National Standards Bulletin 2013 No. 10
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies: test equipment generates voltage change under certain conditions limit. This standard applies to the rated input current greater than 16A is less than or equal to 75A, proposed conditional systems connected to the nominal voltage