GB/T 4343.2-2020 Electromagnetic compatibility requirements for household appliances,electric tools and similar apparatus—Part 2:Immunity English, Anglais, Englisch, Inglés, えいご
1 Scope
1.1This part of GB/T 4343.2 deals with the electromagnetic immunity of appliances and similar apparatus for household and similar purposes that use electricity, as well as electric toys and electric tools, the rated voltage of the apparatus being not more than 250 V for single-phase apparatus to be connected to phase and neutral, and 480 V for other apparatus.
Apparatus may incorporate motors, heating elements or their combination, may contain electric or electronic circuitry, and may be powered by the mains, by transformer, by batteries, or by any other electrical power source.
Apparatus not intended for household use, but which nevertheless may require the immunity level, such as apparatus intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard, as far as they are included in GB 4343.1 . In addition, the following are also included in the scope of this standard:
– microwave ovens for domestic use and catering;
– cooking hobs and cooking ovens, heated by means of r.f. energy;
– (single- and multiple-zone) induction cooking appliances;
– appliances for personal care equipped with radiators in the range from UV to IR, inclusive (this includes visible light);
– power supplies and battery chargers provided with or intended for apparatus within the scope of this standard.
1 .2 This standard does not apply to:
– equipment for lighting purposes;
– apparatus designed exclusively for heavy industrial purposes;
– apparatus intended to be part of the fixed electrical installation of buildings (such as fuses, circuit breakers, cables and switches);
– apparatus intended to be used in locations where special electromagnetic conditions prevail, such as the presence of high electromagnetic fields (for example in the vicinity of a broadcast transmitting station), or where high pulses occur on the power network (such as in a power generator station);
– radio and television receivers, audio and video equipment, and electronic music instruments other than toys;
– medical electrical appliances;
– personal computers and similar equipment other than toys;
– radio transmitters;
– apparatus designed to be used exclusively in vehicles;
– babies surveillance systems.
1 .3 Immunity requirements in the frequency range 0 Hz to 400 GHz are covered.
1 .4 The effects of electromagnetic phenomena relating to the safety of apparatus are excluded from this standard and are covered by other standards, for example in the IEC 60335 series.
Abnormal operation of the apparatus (such as simulated faults in the electric circuitry for testing purposes) is not taken into consideration.
NOTE: Attention is drawn to the fact that additional requirements can be necessary for apparatus intended to be used on board ships or aircraft.
1 .5 The object of this standard is to specify the immunity requirements for apparatus defined in the scope in relation to continuous and transient, conducted and radiated electromagnetic disturbances, including electrostatic discharges.
These requirements represent essential electromagnetic compatibility immunity requirements.
NOTE: In special cases, situations will arise where the level of disturbances may exceed the test values specified in this standard. In these instances special mitigation measures may have to be employed.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 4343.1-2018 Electromagnetic compatibility requirements for household appliances,electric tools and similar apparatus-Part 1:Emission
GB/T 17626.2-2018 Electromagnetic compatibility-Testing and measurement techniques-Electrostatic discharge immunity test
GB/T 17626.3-2016 Electromagnetic compatibility—Testing and measurement techniques—Part 3：Radiated, radio-frequency,electromagnetic field immunity test
GB/T 17626.4-2018 Electromagnetic compatibility-Testing and measurement techniques-Electrical fast transient/burstimmunity test
GB/T 17626.5-2019 Electromagnetic compatibility-Testing and measurement techniques-Surge immunity test
GB/T 17626.6-2017 Electromagnetic compatibility-Testing and measurement techniques- General guide on harmonics and interharmonics measurements and instrumentation，for power supply systems and equipment connected thereto
GB/T 17626.11-2008 Electromagnetic compatibility—Testing and measurement techniques—Part 11:Voltage dips, short interruptions and voltage variations immunity tests for equipment with input current up to 16 A per phase
GB/T 17626.22-2017 Electromagnetic compatibility (EMC)—Testing and measurement techniques—Radiated emissions and immunity measurements in fully anechoic rooms（FARs）
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3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions related to EMC and related phenomena found in IEC 60050-1 61 , as well as the following terms and definitions apply.
3.1 .1
electromagnetic compatibility
ability of a device, unit of equipment or system to function satisfactorily in its electro-magnetic environment without introducing intolerable electromagnetic disturbances to anything in that environment
3.1 .2
port
particular interface of the specified apparatus with the external electromagnetic environment
3.1 .3
enclosure port
physical boundary of the apparatus through which electromagnetic fields may radiate or impinge
3.1 .4
series production
production process in which identical apparatus are manufactured continuously or in batches
(consisting of identical products)
3.1 .5
safety extra-low voltage
voltage which does not exceed 50 V a.c. or 1 20 V ripple free d.c. between conductors, or between any conductor and earth, in a circuit which is isolated from the supply mains by such means as a safety isolating transformer
3.1 .6
toy
product designed for, or clearly intended for use in play by children under 1 4 years old
Note 1 to entry: Toys may incorporate motors, heating elements, electronic circuits and their combination.
Note 2 to entry: The supply voltage of a toy shall not exceed 24 V a.c. (r.m.s.) or ripple-free d.c. and may be
provided by a battery or by means of an adapter or a safety transformer connected to the mains supply.
Note 3 to entry: Transformers, converters and chargers for toys are considered not to be part of the toy (see GB/T 19212.8).
1.FOREWORD 2. INTRODUCTION 1. Scope 2. Normative references 3. Terms, definitions and abbreviations 4. Classification of apparatus 5.Tests 6. Performance criteria 7. Applicability of immunity tests 8. Conditions during testing 9. Assessment of conformity Annex A (informative) Guidance for permissible degradation Bibliography Figure 1 – Examples of ports Figure 2 – Example for a test set-up for large EUTs Table 1 – Enclosure port Table 2 – Ports for signal lines and control lines Table 3 – Input and output d.c. power ports Table 4 – Input and output a.c. power ports Table 5 – Ports for signal lines and control lines Table 6 – Input and output d.c. power ports Table 7 – Input and output a.c. power ports Table 8 – Ports for signal lines and control lines Table 9 – Input and output d.c. power ports Table 1 0 – Input and output a.c. power ports Table 1 1 – Enclosure port Table 1 2 – Input a.c. power ports Table 1 3 – Input a.c. power ports Table A.1 – Examples of degradations
