1 Scope
1.1 This part of GB 4343 applies to the conduction and the radiation of radio-frequency disturbances from appliances whose main functions are performed by motors and switching or regulating devices, unless the RF energy is intentionally generated or intended for illumination.
It includes such equipment as: household electrical appliances, electric tools, regulating controls using semiconductor devices, motor-driven electro-medical apparatus, electric/ electronic toys, automatic dispensing machines as well as cine or slide projectors.
Also included in the scope of this part are:
– separate parts of the above mentioned equipment such as motors, switching devices e.g. (power or protective) relays, however no emission requirements apply unless formulated in this part.
Excluded from the scope of this part are:
– apparatus for which all emission requirements in the radio frequency range are explicitly formulated in other national standards.
Note 1: examples are:
− luminaires, including portable luminaires for children, discharge lamps and other lighting devices: GB 17743;
− audio and video equipment and electronic music instruments, other than toys: GB 13837 and GB/T 9383 (see also 7.3.5.4.2);
− mains communication devices, as well as baby surveillance systems: IEC 61000-3-8;
− equipment for generation and use of radio frequency energy for heating and therapeutic purposes: GB 4824;
− microwave ovens: GB 4824 (but be aware of 1.3 on multifunction equipment);
− information technology equipment, e.g. home computers, personal computers, electronic copying machines: GB 9254;
− electronic equipment to be used on motor vehicles: GB 14023;
− radio controls, walkie-talkies and other types of radio-transmitters, also when used with toys.
– regulating controls and equipment with regulating controls incorporating semiconductor devices with a rated input current of more than 25 A per phase;
– stand-alone power supplies.
Note 2: toys powered by the supply system of a motor-powered vehicle, ship or aircraft are not covered by this part.
1.2 The frequency range covered is 9kHz~400GHz.
1.3 Multifunction equipment which is subjected simultaneously to different clauses of this part and/or other standards shall meet the provisions of each clause/standard with the relevant functions in operation; details are given in 7.2.1.
1.4 The limits in this part have been determined on a probabilistic basis, to keep the suppression of disturbances economically feasible while still achieving an adequate radio protection. In exceptional cases, radio frequency interference may occur, in spite of compliance with the limits. In such a case, additional provisions may be required.
1.5 The effects of electromagnetic phenomena relating to the safety of apparatus are excluded from the scope of this part.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this part of GB 4343. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.
The documents referenced for the purpose of this part are as follows
GB/T 4365-2003 Electrotechnical Terminology - Electromagnetic Compatibility (IEC 60050 (161): 1990, IDT)
GB 4706.91-2008 Safety of Household and Similar Electrical Appliances - Particular Requirements for Electric Fence Energizers (IEC 60335-2-76: 2006, IDT)
GB/T 6113.101-2008 Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods - Part 1-1: Radio Disturbance and Immunity Measuring Apparatus - Measuring Apparatus (CISPR 16-1-1: 2006, IDT)
GB/T 6113.102-2008 Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods - Part 1-2: Radio Disturbance and Immunity Measuring Apparatus - Ancillary Equipment - Conducted Disturbances (CISPR 16-1-2: 2006, IDT)
GB/T 6113.103-2008 Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods - Part 1-3: Radio Disturbance and Immunity Measuring Apparatus - Ancillary Equipment - Disturbances Power (CISPR 16-1-3: 2004, IDT)
GB/T 6113.201-2008 Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods - Part 2-1: Methods of Measurement of Disturbances and Immunity - Conducted Disturbance Measurements (CISPR 16-2-1: 2003, IDT)
GB/T 6113.202-2008 Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods - Part 2-2: Methods of Measurement of Disturbances and Immunity - Measurement of Disturbance Power (CISPR 16-2-2: 2004, IDT)
GB 7000.4-2007 Luminaires - Part 2-10: Particular Requirements-Portable Luminaires for Children (IEC 60598-2-10: 2003, IDT)
GB 7000.204-2008 Luminaires - Part 2-4: Particular Requirements - Portable General Purpose Luminaires (IEC 60598-2-4: 1997, IDT)
GB 9254-2008 Information Technology Equipment - Radio Disturbance Characteristics - Limits and Methods of Measurement (IEC/CISPR 22: 2006, IDT)
GB 17743-2007 Limits and Methods of Measurement of Radio Disturbance Characteristics of Electrical Lighting and Similar Equipment (CISPR 15: 2005+A1: 2006, IDT)
3 Definitions
For the purpose of this part, the definitions contained in GB/T 4365-2003 apply extended with the specific definitions as follows:
3.1 Definitions of the following terms are specified in GB/T 6113.201-2008 or GB/T 6113.202-2008.
Reference ground
Equipment under test (EUT)
Level
Weighing
Foreword i
Introduction iv
1 Scope
2 Normative References
3 Definitions
4 Limits of Disturbance
4.1 Continuous Disturbance
4.2 Discontinuous Disturbance
5 Methods of Measurement of Terminal Disturbance Voltages (148.5 kHz to 30 MHz)
5.1 Measuring Devices
5.2 Measuring Procedures And Arrangements
5.3 Reduction of Disturbance Not Produced by the Equipment under Test
6 Methods of Measurement of Disturbance Power (30 MHz~300 MHz)
6.1 Measuring Devices
6.2 Measurement Procedure on the Mains Lead
6.3 Special Requirements for Appliances Having Auxiliary Apparatus Connected at the End of a Lead other than the Mains Lead
6.4 Assessment of Measuring Results
7 Operating Conditions and Interpretation of Results
7.1 General
7.2 Operating Conditions for Particular Equipment and Integrated Parts
7.3 Standard Operating Conditions and Normal Loads
7.4 Interpretation of Results
8 Interpretation of CISPR Radio Disturbance Limit
8.1 Significance of a CISPR Limit
8.2 Type Tests
8.3 Compliance with Limits for Appliances in Large-scale Production
8.4 The Banning of Sales
Appendix A (Normative) Limits of Disturbance Caused by the Switching Operations of Specific Appliances When the Formula 20lg (30/N) is Applicable
Appendix B (Informative) Example of the Use of the Upper Quartile Method to Determine Compliance with Disturbance Limits (See 7.4.2.6)
Appendix C (Informative) Guidance notes for the Measurement of Discontinuous Disturbance (Clicks)
Bibliography
Figure 1 Graphical Representation of the Limits, Household Appliances and Electric Tools (See 4.1.1)
Figure 2 Graphical Representation of the Limits, Regulating Controls (See 4.1.1)
Figure 3 Examples of Discontinuous Disturbances Classified as Clicks (See 3.2)
Figure 4 Examples of Discontinuous Disturbance for Which the Limits of Continuous Disturbance Apply (See 4.2.2.1) for Some Exceptions from This Rule See 4.2.3.2 and 4.2.3.4
Figure 5 Measuring Arrangement for Regulating Controls (See 5.2.4)
Figure 6 Arrangement for Measurement of Disturbance Voltage Produced at the Fence Terminal of Electric Fence Energizers (See 7.3.7.2)
Figure 7 Measuring Arrangement for Toys Running on Tracks
Figure 8 Application of the Artificial Hand (5.1.4 and 5.2.2.2)
Figure 9 Flow Diagram for Measurements of Discontinuous Disturbance (See Appendix C)
Table 1 Terminal Voltage Limits for the Frequency Range 148.5 kHz to 30 MHz
Table 2 Disturbance Power Limits for the Frequency Range 30 MHz to 300 MHz
Table 3 Radiated Disturbance Limits for Toys for the Frequency Range 30 MHz to 1 000 MHz at 10 m Distance from the Source
Table A.1 Examples of Appliances and Application of Limits According to 4.2.2 and 4.2.3 for Which the Click Rate is Derived from the Number of Clicks
Table A.2 Examples of Appliances and Application of Limits for Which the Click Rate is Derived from the Number of Switching Operations and the Factor f as Mentioned in the Relevant Operating Conditions
