GB 17625.1-2022Electromagnetic compatibility - Limits - Part 1: Limits for harmonic current emissions(equipment input current <=16 A per phase) (English PDF)

Foreword

This document was drafted in accordance with the rules given in GB/T 1.1-2020, Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.

This document is part 1 of Electromagnetic compatibility - Limits. The following parts have been released for GB 17625.

-- Part 1: Limits for harmonic current emissions (equipment input current <= 16 A per phase);

-- Part 2: Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current <=16 A per phase;

-- Part 3: Limitation of voltage fluctuations and flicker in low-voltage power supply systems for equipment with rated current greater than 16 A;

-- Part 4: Assessment of emission limits for distorting loads in MV and HV power systems;

-- Part 5: Assessment of emission limits for fluctuating loads in MV and HV power systems;

-- Part 6: Limitation of emission of harmonic currents in low-voltage power supply systems for equipment with rated current greater than 16 A;

-- Part 7: 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;

-- Part 8: Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and <=75 A per phase;

-- Part 9: Signalling on low-voltage electrical installations - Emission levels, frequency bands and electromagnetic disturbance levels;

-- Part 13: Assessment of emission limits for the connection of unbalanced installations to MV, HV and EHV power systems;

-- Part 14: Assessment of emission limits for harmonics, interharmonics, voltage fluctuations and unbalance for the connection of disturbing installations to LV power systems;

-- Part 15: Assessment of low frequency electromagnetic immunity and emission requirements for dispersed generation systems in LV network.

This document replaces GB 17625.1-2012 Electromagnetic compatibility - Limits - Limits for harmonic current emissions (equipment input current <=16 A per phase).

Compared with GB 17625.1-2012, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Change the scope of application, to be consistent with GB/T 17625.8, by changing "an input current up to and including 16 A per phase" to "a rated input current up to and including 16 A per phase" (see Clause 1; Clause 1 of the 2012 edition);

b) Add terms and definitions of "integrated lamp" and "variable speed drive"; simply and clarify the terminology used for "lighting equipment" (see Clause 3);

c) Classify refrigerators and freezers having one or more variable-speed drives to Class D (see 5.1);

d) Add the classification of professional luminaires for stage lighting and studios (see 5.2);

e) Add a description for the classification of lighting equipment (see 5.2);

f) Add a description for the classification of external power supplies (see 5.3);

g) Add requirements for the multifunction equipment (see 6.5);

h) Add a threshold of 5 W under which no emission limits apply to all lighting equipment (see 7.1);

i) Modify the requirements applying to the dimmers when operating non-incandescent lamps (see 7.1; Clause 7 of the 2012 edition);

j) Add a clarification for lighting equipment including one control module with an active input power <= 2 W (see 7.4.1);

k) Add limit requirements for Class C equipment under different rated power (see 7.4.2 and 7.4.3);

l) Modify the emission limits for lighting equipment with a rated power <= 25 W (see 7.4.3; 7.3 of the 2012 edition);

m) Add compliance with this document (see Clause 8);

n) Adjust the requirements for measurement equipment to Annex A (see Annex A; Annex B of the 2012 edition);

o) Modify the test conditions for television receiver (see B.2; C.2 of the 2012 edition);

p) Modify the test conditions for lighting equipment (see B.5 and B.6; C.5 and C.6.2012 of the 2012 edition);

q) Remove use of reference lamps and reference ballasts for the tests of lighting equipment (see C.5.3 and C.5.4 of the 2012 edition);

r) Add the test conditions for digital load side transmission control devices (see B.5.5);

s) Modify the test conditions for vacuum cleaner (see B.7; C.7 of the 2012 edition);

t) Modify the test conditions for washing machine (see B.8; C.8 of the 2012 edition);

u) Modify the test conditions for induction hobs, taking also into account the other types of cooking appliances (see B.11; C.11 of the 2012 edition);

v) Modify the test conditions for arc welding equipment (see B.14; C.14 of the 2012 edition);

w) Add the test conditions for high pressure cleaner (see B.15);

x) Add the test conditions for refrigerators and freezers (see B.16);

y) Add the test conditions for external power supplies (see B.17);

z) Add the normative reference of partial odd harmonic current (see Annex C).

This document modifies and adopts IEC 61000-3-2:2020 Electromagnetic compatibility (EMC) - Part 3-2.Limits - Limits for harmonic current emissions (equipment input current <=16 A per phase).

The technical differences between this document and IEC 61000-3-2:2020 and the reasons are as follows.

-- For "professional equipment" (see 3.9) in "terms and definitions", adopt the definition in GB/T 4365-2003 Electrotechnical terminology - Electromagnetic compatibility;

-- Delete "60 Hz", "230/400 V and 240/415 V" in "General" (see 6.1), because neither the frequency 60 Hz, nor is the voltage level "230/400 V and 240/415 V" used in China, so the relevant parameter of 60 Hz and the voltage parameters of "230/400 V and 240/415 V" are removed;

-- Add a situation without default conditions (see Annex B.2.2.2) in the part "television receiver" of "type test", to improve the operability of the test;

-- Use the normative reference GB/T 20550-2013 to replace IEC 60155:1993 in the part "luminaire" of "type test" (see Annex B.5.3);

-- Remove "subject to approval by National Committees" in "General" of "POHC calculation" (see Annex C.1).

The following editorial changes have been made for this document.

-- Change the standard name to "Electromagnetic compatibility - Limits - Part 1. Limits for harmonic current emissions (equipment input current<=16 A per phase)" to be consistent with the standard system in China;

-- Use GB/T 17626.7 to replace the informative reference IEC 61000-4-7 in Note 2 of C.1 of Annex C, and add it to the references.

1 Scope

This document deals with the limitation of harmonic currents injected into the public supply system.

This document specifies limits of harmonic components of the input current which can be produced by equipment tested under specified conditions.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document.

GB/T 20550-2013, Glow-starters for fluorescent lamps (IEC 60155:2006, IDT)

GB/T 17309.1-1998, Methods of measurement on receivers for television broadcast transmissions - Part 1: General considerations - Electrical measurements at radio and video frequencies and measurements on displays

GB/T 12060.1-2017, Sound system equipment - Part 1: General (IEC 60268-1:1985, MOD)

3 Terms and definitions

Terms and definitions determined by IEC 60050-161:1990 and the following ones are applicable to this document.

4 General

The objective of this document is to set limits for harmonic emissions of equipment within its scope, so that, with due allowance for the emissions from other equipment, compliance with the limits ensures that harmonic disturbance levels do not exceed the compatibility levels defined in IEC 61000-2-2.

5 Classification of equipment

For the purpose of harmonic current limitation, equipment is classified as Class A~D.

6 General requirements

The restrictions specified in 6.2 also apply to the categories of equipment listed in 7.1 for which no harmonic current limits apply.

7 Harmonic current limits

The procedure for applying the limits and assessing the results is shown in Figure 1.

For the following categories of equipment, limits are not specified in this document.

8 Compliance with this document

Unless otherwise stated, where this document gives options for evaluating harmonics with a choice of test methods and associated limits, any one of these options may be used. […]