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

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.

3.1

Portable tool

Electrical tool which is hand-held during normal operation and used for a short time (a

few minutes) only.

3.2

Lamp

Light source provided with at least one cap.

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.

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