Detail of GB 17625.1-2022

Introduction of GB 17625.1-2022

1 Scope This document deals with the limitation of harmonic currents injected into the public supply system. It specifies limits of harmonic components of the input current which may be produced by equipment tested under specified conditions. This document is applicable to electrical and electronic equipment having a rated input current up to and including 16A per phase, and intended to be connected to public low-voltage distribution systems. Arc welding equipment, which is not professional equipment, with a rated input current up to and including 16A per phase, is included in the scope of this document. All other arc welding equipment is excluded from the scope of this document; however, the harmonics emission may be evaluated using IEC 61000-3-1 2 and relevant installation restrictions. The tests according to this document are type tests. For systems with nominal voltages less than 220V (line-to-neutral), the limits have not yet been considered. Note: The words apparatus, appliance, device and equipment are used throughout this document. They have the same meaning for the purposes of this document. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 20550-2013 Glow-starters for fluorescent lamps (IEC 60155: 2006, IDT) IEC 60050-161:1990 International electrotechnical vocabulary (IEV) - Part 161: Electromagnetic compatibility Note: GB/T 4365-2003 Electrotechnical terminology - Electromagnetic compatibility (IEC 60050(161): 1990, IDT) IEC 60107-1:1997 Methods of measurement on receivers for television broadcast transmissions - Part 1:General considerations - Measurements at radio and video frequencies Note: 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 (idt IEC 60107-1:1995) IEC 60268-1:1985+Amd1: 1988 and Amd2: 1988 Sound system equipment - Part 1: General Note: GB/T 12060.1-2017 Sound system equipment - Part 1: General (IEC 60268-1: 1985, MOD) IEC 60268-3: 2018 Sound system equipment - Part 3: Amplifiers Note: GB/T 12060.3-2011 Sound system equipment - Part 3: Methods of measurement on audio amplifiers (IEC 60268-3: 2000, IDT) IEC 60335-2-2: 2019 Household and similar electrical appliances - Safety - Part 2-2; Particular requirements for vacuum cleaners and water-suction cleaning appliances Note: GB/T 12060.3-2011 Safety of household and similar electrical appliances - Particular requirements for vacuum cleaner and water suction (IEC 60335-2-2: 2009, IDT) IEC 60335-2-14: 2016 Household and similar electrical appliances - Safety - Part 2-14: Particular requirements for kitchen machines Note: GB 4706.30-2008 Household and similar electrical appliances - safety - Particular requirements for kitchen machines (IEC 60335-2-14: 2006, IDT) IEC 60335-2-24: 2010 + Amd1: 2012 and Amd2: 2017 Household and similar electrical appliances - Safety - Part 2-24: Particular requirements for refrigerating appliances, ice-cream appliances and ice makers Note: GB 4706.13-2014 Household and similar electrical appliances - Safety - Particular requirements for refrigerating appliances, ice-cream appliances and ice-makers (IEC 60335-2-24: 2012, 1DT) IEC 60335-2-79: 2016 Household and similar electrical appliances - Safety - Part 2-79: Particular requirements for high pressure cleaners and steam cleaners Note: GB 4706.89-2008 Safety of household and similar electrical appliances - Particular requirements for high pressure cleaners and steam cleaners for industrial and commercial use (IEC 60335-2-79: 1995, IDT) IEC 60598-2-17: 2012+Amd: 2015 Luminaires - Part 2-17: Particular requirements - Luminaires for stage lighting, television and film studios (outdoor and indoor) Note: GB 7000.217-2008 Luminaires - Part 2-17: Particular requirements - Luminaires for stage lighting, television, film and photographic studios (outdoor and indoor) (IEC 60598-2-17: 1984+A2: 1990, IDT) IEC 60974-1:2017 Arc welding equipment - Part 1: Welding power sources Note: GB/T 15579.1-2013 Arc welding equipment - Part 1: Welding power source (IEC 60974-1:2005, IDT) IEC 61000-4-7: 2002 + Amd1: 2008 Electromagnetic compatibility (EMC) - Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto Note: GB/T 17626.7-2017 Electromagnetic compatibility - Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto (IEC 61000-4-7:2009, IDT) IEC 62756-1:2015 Digital load side transmission lighting control (DLT) - Part 1: Basic requirements 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-161: 1990 and the following apply. 3.1 portable tool electrical tool which is hand-held during normal operation and used for a short time (a few minutes) only Note: Hand-held means that no part of the tool, except the power cord, rests on the floor during normal operation. 3.2 lamp light source provided with at least one cap Note: For products that have the same physical characteristics as lamps for general lighting but that are built to emit optical radiation mainly in the IR or UV spectrum, the term IR lamp or UV lamp is often used. [Source: IEC 60050-845: 2020, 845-27-008, modified] 3.3 integrated lamp electric lamp which cannot be dismantled without being permanently damaged, incorporating lighting control gear, and all additional elements necessary for starting and stable operation of the light source, designed for direct connection to the supply voltage [Source: IEC 60050-845: 2020, 845-27-009] 3.4 luminaire apparatus which distributes, filters or transforms the light transmitted from at least one source of optical radiation and which includes, except the sources themselves, all the parts necessary for fixing and protecting the sources (IEV 845-21 -032) and, where necessary, circuit auxiliaries together with the means for connecting them to the power supply [Source: IEC 60050-845: 2020, 845-30-001, modified] 3.5 input current current directly supplied to an equipment or a part of equipment by the AC distribution system 3.6 (void) 3.7 active input power mean value of the instantaneous power, taken over 10 fundamental periods and measured in accordance with IEC 61000-4-7: 2002 and Amd1 (2008) at the input supply terminals of the equipment under test 3.8 balanced three-phase equipment equipment having rated line current modules which differ by no more than 20% 3.9 professional equipment equipment for use in trades, professions or industries and which is not intended for sale to the general public Note: Some professional equipment are designated by the manufacturer. 3.10 total harmonic current THC total RMS value of the harmonic current components of orders 2 to 40, expressed as: 3.11 total harmonic distortion THD ratio of the RMS value of the sum of the harmonic components (in this document, harmonic current components Ih of orders 2 to 40) to the RMS value of the fundamental component, expressed as: 3.12 partial odd harmonic current POHC total RMS value of the odd harmonic current components of orders 21 to 39, expressed as: Note: Details for the calculation of the POHC are given in Annex C. 3.13 lighting equipment equipment with a primary function of generating and/or regulating and/or distributing the radiation emitted by a light source Note: See also 5.2. 3.14 stand-by mode non-operational, low power consumption mode (usually indicated in some way on the equipment) that can persist for an indefinite time 3.15 repeatability consistency between the results of measurements of harmonic currents on the same equipment under test, carried out with the same test system, at the same location, under identical test conditions 3.16 reproducibility consistency between the results of measurements of harmonic currents on the same equipment under test, carried out with different test systems under conditions of measurement intended to be the same in each case Note: The test system and test conditions are assumed to fulfil all normative requirements in the applicable standards.

Contents of GB 17625.1-2022

Foreword i Introduction v 1 Scope 2 Normative references 3 Terms and definitions 4 General 5 Classification of equipment 5.1 General 5.2 Description of lighting equipment 5.3 External power sources 6 General requirements 6.1 General 6.2 Control methods 6.3 Harmonic current measurement 6.3.1 Test configuration 6.3.2 Measurement procedure 6.3.3 General requirements 6.3.4 Test observation period 6.4 Equipment in a rack or case 6.5 Multifunction equipment 7 Harmonic current limits 7.1 General 7.2 Limits for Class A equipment 7.3 Limits for Class B equipment 7.4 Limits for Class C equipment 7.4.1 General 7.4.2 Rated power >25W 7.4.3 Rated power ≥5W and ≤25W 7.5 Limits for Class D equipment 8 Compliance with this document Annex A (Normative) Measurement circuit and supply source A.1 Test circuit A.2 Test supply source Annex B (Normative) Type test conditions B.1 General B.2 Television receivers (TV) B.3 Audio amplifiers B.4 Video-cassette recorders B.5 Lighting equipment B.6 Independent phase control dimmers for lighting equipment B.7 Vacuum cleaners B.8 Washing machines B.9 Microwave ovens B.10 Information technology equipment (ITE) B.11 Cooking appliances B.12 Air conditioners B.13 Kitchen machines as defined in IEC 60335 B.14 Arc welding equipment which is not professional equipment B.15 High pressure cleaners which are not professional equipment B.16 Refrigerators and freezers B.17 External power supplies (EPS) Annex C (Normative) POHC calculation C.1 General C.2 Calculation of the POHC from the final values of the harmonic currents, averaged over the complete observation time C.3 Calculation of the final POHC from single POHC values for each DFT time window Bibliography