Railway applications—Electromagnetic compatibility—
Part 3-2: Rolling stock—Apparatus
1 Scope
This part of GB/T 24338 applies to emission and immunity aspects of EMC for electrical and electronic apparatus intended for use on railway rolling stock.
The frequency range considered is from 0 GHz to 400 GHz. At present, test is not defined for frequencies above 2 GHz.
The application of tests shall depend on the particular apparatus, its configuration, its ports, its technology and its operating conditions.
This part takes into account the internal environment of the railway rolling stock and the external environment of the railway, and interference to the apparatus from equipment such as hand-held radio transmitters.
If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems) then the emission and immunity limits in this part at the communication frequency do not apply.
This part does not apply to transient emissions when starting or stopping the apparatus.
The objective of this part is to define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated disturbances.
These limits and tests represent essential electromagnetic compatibility requirements.
Emission requirements have been selected so as to ensure that disturbances generated by the apparatus operated normally on railway rolling stock do not exceed a level which could prevent other apparatus from operating as intended.
Likewise, the immunity requirements have been selected so as to ensure an adequate level of immunity for rolling stock apparatus.
The levels do not however cover extreme cases which may occur with an extremely low probability of occurrence in any location. Specific requirements which deviate from this part shall be specified.
Test requirements are specified for each port considered.
These specific provisions are additional to the general provisions in GB/T 24338.1.
2 Normative references
The following documents contain provisions which, through reference in this part of GB/T 24338, constitute provisions of this part. For dated references, subsequent amendments to (excluding correction to), 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 undated references, the latest edition of the normative document applies.
GB 4824 Industrial, scientific and medical (ISM) radio-frequency equipment—Electromagnetic disturbance characteristics—Limits and methods of measurement (GB 4824-2004, CISPR 11: 2003, IDT)
GB 9254 Information technology equipment—Radio disturbance characteristics—Limits and methods of measurement (GB 9254-2008, IEC/CISPR 22: 2006, IDT)
GB/T 17626.2 Electromagnetic compatibility (EMC)—Testing and measurement techniques—Electrostatic discharge immunity test (GB/T 17626.2-2006, IEC 61000-4-2: 2001, IDT)
GB/T 17626.3-2006 Electromagnetic compatibility—Testing and measurement techniques—Radiated radio-frequency electromagnetic field immunity test (IEC 61000-4-3: 2002, IDT)
GB/T 17626.4 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burst immunity test (GB/T 17626.4-2008, IEC 61000-4-4: 2004, IDT)
GB/T 17626.5 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test (GB/T 17626.5-2008, IEC 61000-4-5: 2005, IDT)
GB/T 17626.6 Electromagnetic compatibility—Testing and measurement techniques—Immunity to conducted disturbances induced by radio-frequency fields (GB/T 17626.6-3008, IEG 61000-4-6: 2006, IDT)
GB/T 24338.1 Railway applications—Electromagnetic compatibility—Part 1: General (GB/T 24338.1-2009, IEC 62236-1: 2003, IDT)
GB/T 24338.3 Railway applications—Electromagnetic compatibility—Part 3-1: Rolling stock—Train and complete vehicle (GB/T 24338.3-2009, IEC 62236-3-1: 2003, IDT)
IEC 60571: 2006 Electronic equipment used on rail vehicles
CISPR16-1 Specification for radio disturbance and immunity measuring apparatus and methods
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Performance criteria
5 Conditions during test
6 Applicability
7 Emission tests and limits
8 Immunity tests and limits
Annex A (Informative) Examples of apparatus and ports
Annex B (Informative) Conducted disturbances generated by power converters in the range of 9 kHz to 30 MHz
