GB/T 29259-2012 English PDF (GBT29259-2012)

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GB/T 29259-2012: Road vehicle -- Electromagnetic compatibility terminology
GB/T 29259-2012
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 04
Road vehicle-
Electromagnetic compatibility terminology
ISSUED ON. DECEMBER 31, 2012
IMPLEMENTED ON. JUNE 1, 2013
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
Index ... 16
Foreword
This Standard is proposed by Ministry of Industry and Information Technology of the
People’s Republic of China.
This Standard is under the jurisdiction of National Technical Committee on Automotive
of Standardization Administration of China (SAC/TC 114).
Drafting organizations of this Standard. China Automotive Technology Research
Center, Suzhou 3C Test Electronic Technology Co., Ltd., Shanghai Volkswagen
Automobile Co., Ltd., Shenzhen Hangsheng Electronics Co., Ltd.
Main drafters of this Standard. Xu Xiuxiang, Sun Chengming, Liu Xinliang, Ding Yifu,
Wang Xibin, Deng Xianghong.
Road vehicle –
Electromagnetic compatibility terminology
1 Scope
This Standard specifies terms and definitions related to electromagnetic compatibility
of road vehicles.
This Standard applies to M, N, O, L vehicles and electrical and electronic
systems/components, other motor vehicles may also refer to this Standard.
2 Normative references
The following documents are indispensable for the application of this document. For
dated references, only the dated edition applies to this document. For undated
references, the latest edition (including all modifications) applies to this document.
GB/T 4365-2003 Electrotechnical terminology - Electromagnetic compatibility
3 Terms and definitions
3.1
vehicle electromagnetic environment
The totality of electromagnetic phenomena presenting inside and outside the vehicle.
3.2
vehicle electromagnetic compatibility (EMC)
The ability of a vehicle and electrical and electronic system/component to function
satisfactorily in its electromagnetic environment without affecting other vehicles and
electrical and electronic systems/components in that environment.
3.3
electromagnetic disturbance
Any electromagnetic phenomenon which degrade the performance of a device,
equipment or system, or adversely affect living or non-living matter.
presence of an electromagnetic disturbance.
[GB/T 4365-2003, definition 161-01-20]
3.10
immunity level
The maximum level of a given electromagnetic disturbance incident on a particular
device, equipment or system for which it remains capable of operating at a required
degree of performance.
[GB/T 4365-2003, definition 161-03-14]
3.11
electrostatic discharge (ESD)
A transfer of electric charge between bodies of different electrostatic potential in
proximity or through direct contact.
[GB/T 4365-2003, definition 161-01-22]
3.12
human ESD model
A model using the capacitance and resistance to characterize the human body as the
electrostatic charge source in the vehicle environment.
3.13
ESD simulator
A test device for simulating a human ESD model.
3.14
conduction
The electromagnetic phenomenon which transfer energy through one or more than
one conductors.
3.15
coupling
The electromagnetic phenomenon by which electrical circuits interact with each other,
source.
3.21
narrowband emission
An electromagnetic emission which has a bandwidth less than that of a particular
measuring apparatus or receiver. If the pulse repetition frequency of the signal is
greater than the measuring bandwidth of the instrument, it is also regarded as
narrowband emission.
3.22
broadband emission
An electromagnetic emission which has a bandwidth greater than that of a particular
measuring apparatus or receiver. If the pulse repetition frequency of the signal is less
than the measuring bandwidth of the instrument, it is also regarded as broadband
emission.
3.23
continuous conducted emissions
Noise voltage/current presents in the power line or other leads.
3.24
impulsive ignition noise
Electromagnetic emission which is produced within the ignition system of the vehicle,
unwanted and mainly of pulse nature.
3.25
ignition noise suppressor
A device used to limit impulsive ignition noise in a high voltage ignition line.
3.26
frequency sub-band
A certain part of frequency band specified for the measurement of frequency range, to
count and evaluate the data of frequency sweep measurement test.
3.27
absorber lined shielded enclosure
The screened room with the internal top surface and the wall being installed with radio
frequency absorbing material. The screened room usually uses metal flooring, but the
frequency absorbing material can also be installed on the floor.
3.51
ground (reference) plane
A metal plane or conductive plane used as the common reference potential of the
tested equipment and test equipment.
3.52
artificial network (AN)
A device inserted in the supply mains lead of apparatus to be tested which provides,
in a given frequency range, a specified load impedance for the measurement of
disturbance voltages and which may isolate the apparatus form the supply mains in
that frequency range.
3.53
broadband artificial network
An artificial network inserted in the supply mains lead, signal line, control line and
support system of apparatus to be tested, which provides a controllable impedance in
all frequency ranges of a particular transmission.
3.54
peak detector
A detector, the output voltage of which is the peak value of an applied signal.
[GB/T 4365-2003, definition 161-04-24]
3.55
quasi-peak detector
A detector having specified electrical time constants which, when regularly repeated
identical pulses are applied to it, delivers an output voltage which is a fraction of the
peak value of the pulses, the fraction increasing towards 1 as the pulse repetition rate
is increased.
[GB/T 4365-2003, definition 161-04-21]
The electromagnetic wave propagation mode of which the longitudinal component of
electric field and magnetic field strength is zero.
3.63
TEM cell
An enclosed system (often a rectangular coaxial line), in which a wave is propagated
in the transverse electromagnetic mode to produce a specified field for testing
purposes.
3.64
strip line
A terminated transmission lime consisting of two parallel plates between which a wave
is propagated in the transverse electromagnetic mode to produce a specified field for
testing purpose.
[GB/T 4365-2003, definition 161-04-31]
3.65
antenna factor
The ratio of the field strength of the receiving point to the generated voltage at the
antenna output.
3.66
antenna matching unit
A device that forms/implements impedance matching in the antenna measurement
frequency range with a measuring meter with an impedance of 50 Ω.
3.67
polarization
The directional characteristic of a sinusoidal electromagnetic wave or field vector
determined by an electric field vector or any other specified field vector at a fixed point.
3.68
compression point
The signal level when the system output value is about to deviate from the theoretical
value of the ideal linear system, and the measurement system begins to ...