Detail of GB 4343.1-2024

Introduction of GB 4343.1-2024

Electromagnetic compatibility requirements for household appliances , electric tools and similar apparatus - Part 1: Emission 1 Scope This document specifies the requirements that apply to the emission of radio-frequency disturbances in the frequency range 9 kHz to 400 GHz from appliances, electric tools and similar apparatus as defined below, whether powered by AC or DC (including a battery). This document is applicable to the following equipment: ——household appliances or similar equipment; Note 1: Examples are equipment used: ——for typical housekeeping functions in the household environment, which includes the dwelling and its associated buildings, the garden, etc.; ——for typical housekeeping functions in shops, offices, commercial and other similar working environments; ——on farms; ——by clients in hotels and other residential type environments; ——for induction cooking or air-conditioning, either in residential or commercial environments. ——electric tools; Note 2: Examples of electric tools include electric motor-operated or electromagnetically driven hand-held tools, transportable tools, lawn and garden machinery. ——similar apparatus. Note 3: Examples are: ——external power controllers using semiconductor devices; ——motor-driven electro-medical equipment; ——electric/electronic toys; ——personal care and beauty care appliances; ——automatic goods-dispensing machines; ——entertainment machines; ——cine or slide projectors; ——battery chargers and external power supplies for use with products under the scope of this document; ——electric fence energisers. Also included in the scope of this document are separate parts of the above mentioned equipment such as motors and switching devices (e.g. power or protective relays). However, no emission requirements apply to such separate parts, unless otherwise stated in this document. Products which incorporate radio transmit/receive functions are included in the scope of this document. Equipment under the scope of this document making use of IPT is also in the scope. Excluded from the scope of this document are: ——equipment for which all emission requirements in the radio-frequency range are explicitly formulated in other IEC/CISPR standards; Note 4: Examples are: ——luminaires, including portable luminaires for children, discharge lamps and other lighting devices under the scope of GB/T 17743; ——information technology equipment, e.g. home computers, personal computers, electronic copying machines under the scope of GB/T 9254.1; ——audio/video equipment and electronic music instruments other than toys under the scope of GB/T 9254.1; ——mains communication devices, as well as baby surveillance systems; ——equipment which is under the scope of GB 4824 (e.g. microwave ovens) but be aware of 6.5 on multifunction equipment (e.g. for another function requiring click measurements) ——radio controls, walkie-talkies and other types of radio-transmitters; ——arc welding equipment. ——equipment intended to be used only on a vehicle, ship or aircraft; ——equipment used only in industrial environment; ——the effects of electromagnetic phenomena relating to the safety of the equipment. Multifunction equipment may be required to comply with clauses in this and other standards. The details are given in 6.5. The emission requirements in this document are not intended to be applicable to the intentional transmissions from a radio transmitter as defined by the ITU including their spurious emissions. 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 edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6113.102-2018 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-2: Radio disturbance and immunity measuring apparatus - Coupling devices for conducted disturbance measurements (CISPR16-1-2:2014, IDT) GB/T 6113.103-2021 Specification for radio disturbance and immunity measuring apparatus and methods- Part 1-3: Radio disturbance and immunity measuring apparatus - Ancillary equipment - Disturbances power (CISPR16-1-3:2016, IDT) GB/T 6113.104-2021 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas and test sites for radiated disturbance measurements (CISPR16-1-4:2019, IDT) GB/T 6113.202-2018 Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-2: Methods of measurement of disturbances and immunity - Measurement of disturbance power (CISPR16-2-2:2010, IDT) GB/T 6113.402-2022 Specification for radio disturbance and immunity measuring apparatus and methods- Part 4-2: Uncertainties,statistics and limit modelling - Measurement instrumentation uncertainty (CISPR16-4-2:2018, IDT) Note: There is no technical difference between the content referenced in GB/T 6113.402-2022 and CISPR16-4-2/AMD1:2014. GB/T 9254.1-2021 Information technology equipment,multimedia equipment and receivers - Electromagnetic compatibility - Part 1: Emission requirements (CISPR 32:2015, MOD) Note: There is no technical difference between the content referenced in GB/T 9254.1-2021 and CISPR 32:2015. GB/T 17626.20-2014 Electromagnetic compatibility - Testing and measurement techniques - Emission and immunity testing in transverse electromagnetic (TEM) waveguide (IEC 61000-4-20:2010, IDT) GB/T 17626.22-2017 Electromagnetic compatibility (EMC) - Testing and measurement techniques - Radiated emissions and immunity measurements in fully anechoic rooms (FARs) (IEC 61000-4-22:2010, IDT) IEC 60050-161 International Electrotechnical Vocabulary (lEV) - Part 161: Electromagnetic compatibility Note: GB/T 4365-2003 Electrotechnical terminology - Electromagnetic compatibility [IEC 60050 (161):1990, IDT] IEC 61000-4-20 Electromagnetic compatibility(EMC) - Part 4-20: Testing and measurement techniques Emission and immunity testing in transverse electromagnetic (TEM) waveguides IEC 61000-4-22 Electromagnetic compatibility (EMC) - Part 4-22: Testing and measurement techniques - Radiated emission and immunity measurements in fully anechoic rooms (FARs) CISPR 16-1-1:2015 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus ...... 3.2.4 reference ground plane; RGP fIat, conductive surface that is at the same electric potential as reference ground, which is used as a common reference, and which contributes to a reproducible parasitic capacitance with the surroundings of the EUT Note 1: A reference ground plane is needed for the measurements of conducted disturbances, and serves as reference for the measurement of unsymmetrical and asymmetric disturbance voltages. Note 2: In some regions, the term ‘reference earth’ is used in place of ‘reference ground’. [SOURCE: CISPR 16-2-1 2014+AMD1:2017, 3.1.25] 3.2.5 common mode absorption device; CMAD device applied on cables leaving the test volume in radiated emission measurements to reduce the compliance uncertainty [SOURCE: GB/T 6113.104-2021, 3.1.7, modified.] 3.2.6 Radio frequency; RF frequency of the electromagnetic spectrum that is between the audio-frequency portion and the infrared portion Note 1: The RF spectrum is generally accepted to be from 9 kHz to 3 000 GHz. 3.2.7 weighting pulse-repetition-frequency (PRF) dependent conversion (mostly reduction) of a peak-detected impulse voltage level to an indication that corresponds to the interference effect on radio reception [SOURCE: CISPR 16-2-1:2014, 3.1.29, modified.] 3.3 Terms and definitions related to click analysis 3.3.1 switching operation operation of opening or closing a switch or contact Note 1: Switches can be mechanical (including electro-mechanical relays) or electronic (thyristors, transistors). Note 2: Switching operations are used to control/enable the operation of a device/load (e.g. a motor or a heating element) and have the potential of generating discontinuous disturbances. Note 3: Switching operations occur at a random rate (e.g. for the purpose of temperature control) or predetermined rate (e.g. as part of automatic program controls). Note 4: The occurrence of switching operations is not necessarily associated with the generation of disturbances classified as clicks (see 3.3.3 definition) 3.3.2 discontinuous disturbanee impulsive disturbance that appears as an abrupt and transitory increase of the disturbance level caused by switching operations Note 1: The spectral density of discontinuous disturbances is broadband. Their subjective effect varies with repetition rate, duration and amplitude. These parameters are captured with suitable time domain instrumentation (e.g. click analyser). Note 2: Other impulsive disturbances appear as broadband (e.g. those generated by commutation in brush motors) but the repetition rate is higher than that typical of switching operations. 3.3.3 click discontinuous disturbance, having an amplitude exceeding the quasi-peak limit for continuous disturbance, the duration of which is not longer than 200 ms and which is separated from a preceding or subsequent disturbance by at least 200 ms, where the durations are determined from the signal which exceeds the i.f. reference level of the measuring receiver or from the instantaneous peak signal which exceeds the quasi-peak limit for continuous disturbance Note 1: A click can comprise one or more pulses, see 4.4.1.

Contents of GB 4343.1-2024

Foreword 1 Scope 2 Normative references