GB/T 22451-2008 English PDF (GBT22451-2008)

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GB/T 22451-2008: Common requirements of electromagnetic compatibility for radio communication equipment
GB/T 22451-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 33.100
L 06
Common requirements of electromagnetic
compatibility for radio communication equipment
ISSUED ON: OCTOBER 07, 2008
IMPLEMENTED ON: APRIL 01, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 4 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms, definitions and abbreviations ... 8 
3.1 Terms and definitions ... 8 
3.2 Abbreviations ... 11 
4 Test conditions ... 12 
4.1 General conditions ... 12 
4.2 Test arrangement ... 13 
4.3 Exempt-testing frequency band ... 14 
4.4 Narrowband response of receiver ... 15 
5 Performance evaluation method ... 15 
5.1 General ... 15 
5.2 EUT that can establish a continuous communication connection ... 16 
5.3 EUT that cannot establish a continuous communication connection ... 16 
5.4 Applicable methods for evaluating ancillary equipment ... 16 
5.5 Classification of EUT ... 17 
6 Performance criteria ... 17 
6.1 Performance criterion A (continuous phenomena) ... 17 
6.2 Performance criterion B (transient phenomena) ... 17 
6.3 Performance criterion C (intermittent phenomenon) ... 18 
7 Applicability ... 18 
7.1 Disturbance measurement ... 18 
7.2 Immunity test ... 19 
8 Disturbance measurement methods and limits ... 20 
8.1 Antenna port (conducted stray) ... 20 
8.2 Chassis port (radiated stray) ... 21 
8.3 Ancillary equipment ... 21 
8.4 Telecommunications port ... 23 
8.5 DC power input/output port ... 24 
8.6 AC power input/output port ... 25 
8.7 Harmonic current (AC power input port) ... 26 
8.8 Voltage fluctuation and flicker (AC power input port) ... 26 
8.9 Transient conducted disturbance (DC power input, output port) ... 26 
9 Immunity test method and level ... 27 
9.1 Electrostatic discharge immunity test ... 27 
9.2 Radiated disturbance immunity test (80MHz~2.7GHz) ... 27 
9.3 Immunity Test of electrical fast transient pulse group ... 28 
9.4 Surge (impact) immunity test ... 28 
9.5 Conducted disturbance immunity test of RF field sensing ... 29 
9.6 Immunity test of power frequency magnetic field ... 29 
9.7 Immunity tests of voltage dip, short interruption and voltage change ... 30 
9.8 Transient and surge immunity test (on-board environment) ... 31 
Annex A (normative) Electromagnetic compatibility test guidelines for combined
radio equipment ... 33 
A.1 Combination type of combined radio equipment ... 33 
A.2 Test guidelines for combined radio equipment ... 36 
A.3 Examples for various types of combined radio equipment ... 39 
Annex B (normative) Test guides for multi-mode terminal electromagnetic
compatibility ... 41 
B.1 Terminal that does not support dual-mode simultaneous work ... 41 
B.2 Terminal that supports dual-mode simultaneous work ... 41 
Common requirements of electromagnetic
compatibility for radio communication equipment
1 Scope
This Standard specifies electromagnetic compatibility (EMC) limits,
performance criteria and measurement methods for wireless communication
equipment and its associated ancillary equipment.
This Standard is applicable to all kinds of wireless communication equipment.
For specific products that are not suitable for testing in a laboratory environment
(such as high-power radio transmitters), it may conduct on-site testing. In this
case, if there is no applicable field test standard and method, then the basic
principle and limits used to evaluate the EUT measurement method of the
equipment to be tested shall be consistent with the provisions of this Standard.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For dated references, the subsequent
amendments (excluding corrigendum) or revisions do not apply to this Standard,
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB/T 6113.1, Specifications for radio disturbance and immunity measuring
apparatus
GB 9254, Information technology equipment - Radio disturbance
characteristics - Limits and methods of measurement (GB 9254-2008,
CISPR 22: 2006, IDT)
GB/T 17618, Information technology equipment - Immunity characteristics -
Limits and methods of measurement (GB/T 17618-1998, idt CISPR24: 1997)
GB 17625.1, Electromagnetic compatibility - Limits - Limits for harmonic
current emissions (equipment input current ≤16 A per phase) (GB 17625.1-
2003, IEC 61000-3-2:2001, IDT)
GB 17625.2, Electromagnetic compatibility - Limits - Limitation of voltage
CISPR 16-1-4, 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
CISPR 16-2-3, Specification for radio disturbance and immunity measuring
apparatus and methods - Part 2-3: Methods of measurement of disturbances
and immunity - Radiated disturbance measurements
IEC 61000-3-12, Limits for Harmonic Currents Produced by Equipment
Connected to Public Low-Voltage Systems with Input Current >16A and
≤75A Per Phase
ISO 7637-2, Road vehicles - Electrical disturbances from conduction and
coupling - Part 2: Electrical transient conduction along supply lines only
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1 radio communications equipment
including one or more radio transmitters and/or receivers and/or communication
equipment for fixed use, vehicle use, portable use, or some of them; radio
communications equipment can be used with ancillary equipment, but basic
functions can be realized without ancillary equipment
3.1.2 operating frequency range
radio frequency band occupied by radio communications equipment
3.1.3 telecommunication center
"telecommunication center" refers to an electromagnetic environment with the
following characteristics:
a) The power supply in the area adopts -48V, -60V DC power supply or 50Hz
220/380V AC power supply;
b) Must ensure that DC-powered loads rarely switch;
c) The internal AC cables must be kept a certain distance from the DC cables
and signal lines, so as to avoid mutual coupling;
d) No protection distance is required between DC cable and signal line;
3.1.14 combined radio equipment
those that meet the following two definitions can be called combined radio
equipment:
a) A device containing two or more radio transmitters and/or receivers. These
radio transmitters and/or receivers use different technologies but can work
simultaneously;
b) The equipment contains two or more separate product functions, but at
least one function is a radio service function.
3.1.15 continuous phenomena
the disturbance that the effect on a particular device cannot be clearly
distinguished as a series of effects
3.1.16 transient phenomena
a physical phenomenon or quantity that changes between two adjacent stable
states; the change time is less than the time scale of interest
3.1.17 portable equipment
the radio communications equipment and (or) its anci...