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Standard ID | GB/T 21437.1-2021 (GB/T21437.1-2021) | Description (Translated English) | Road vehicles -- Test method of electrical disturbances from conduction and coupling -- Part 1: Definitions and general considerations | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | T35 | Classification of International Standard | 43.040.10 | Word Count Estimation | 8,881 | Date of Issue | 2021-12-31 | Date of Implementation | 2022-07-01 | Older Standard (superseded by this standard) | GB/T 21437.1-2008 | Adopted Standard | ISO 7637-1-2015, MOD | Drafting Organization | China Automotive Technology and Research Center Co., Ltd. | Administrative Organization | National Automotive Standardization Technical Committee | Regulation (derived from) | National Standard Announcement No. 17 of 2021 | Proposing organization | Ministry of Industry and Information Technology of the People's Republic of China | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | Standard ID | GB/T 21437.1-2008 (GB/T21437.1-2008) | Description (Translated English) | Road vehicles. Electrical distrubances from conduction and coupling. Part 1: Definitions and general considerations | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | T35 | Classification of International Standard | 43.040.10 | Word Count Estimation | 7,728 | Date of Issue | 2008-06-19 | Date of Implementation | 2009-04-01 | Quoted Standard | GB/T 4365; IEC 60050-151 | Adopted Standard | ISO 7637-1-2002, IDT | Drafting Organization | China Automotive Technology and Research Center | Administrative Organization | National Automotive Standardization Technical Committee | Regulation (derived from) | Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall) | Proposing organization | National Development and Reform Commission | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | Summary | This standard specifies the basic terminology, and gives general information. Terminology used with the base and coupled to the electrical conduction disturbance associated, in the terminology used in other parts. |
GB/T 21437.1-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 35
Replacing GB/T 21437.1-2008
Road vehicles - Test method of electrical disturbances from
conduction and coupling - Part 1: Definitions and general
considerations
(ISO 7637-1:2015, Road vehicles - Electrical disturbances from conduction and
coupling - Part 1: Definitions and general considerations, MOD)
ISSUED ON: DECEMBER 31, 2021
IMPLEMENTED ON: JULY 01, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions... 6
4 General description of GB/T 21437 ... 7
5 General test conditions ... 8
Annex A (normative) Functional characteristic state classification (FPSC) ... 10
Bibliography... 11
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
“Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents”.
This document is Part 1 of GB/T 21437 “Road vehicles - Test method of electrical
disturbances from conduction and coupling”. GB/T 21437 has issued the following
parts:
- Part 1: Definitions and general considerations;
- Part 2: Electrical transient conduction along supply lines only;
- Part 3: Electrical transient transmission by capacitive and inductive coupling via
lines other than supply lines.
This document replaces GB/T 21437.1-2008 “Road vehicles - Electrical disturbances
from conduction and coupling -Part 1: Definitions and general considerations”.
Compared with GB/T 21437.1-2008, in addition to structural adjustments and editorial
modifications, the main technical changes in this document are as follows:
- Added GB/T 29259 as a reference; Deleted the duplicate terms and definitions with
GB/T 29259 (see Chapter 3);
- Added general test conditions (see Chapter 5);
- Added functional characteristic state classification (FPSC) (see Annex A).
The modification of this document adopts ISO 7637-1:2015 “Road vehicles - Electrical
disturbances from conduction and coupling - Part 1: Definitions and general
considerations”.
The technical differences between this document and ISO 7637-1:2015 and the reasons
are as follows:
- To maintain the unity of the expression and understanding of the functional
characteristic status classification (FPSC) among the electromagnetic immunity
series standards, it is changed to refer to Annex A of GB/T 33014.1-2016;
- Change the normative reference "IEC 60050-151" in Chapter 3 of ISO 7637-1:2015
to "GB/T29259", so as to avoid repetition; Deleted the terms and definitions in
ISO 7637-1:2015 that are repeated with GB/T 29259.
Attention is drawn to the possibility that some of the elements of this Standard may be
the subject of patent rights. The issuing authority shall not be held responsible for
identifying any or all such patent rights.
Road vehicles - Test method of electrical disturbances from
conduction and coupling - Part 1: Definitions and general
considerations
1 Scope
This document specifies the test conditions, functional characteristic state classification
for electrical transient conducted emissions and immunity tests of electrical/electronic
components.
This document applies to electrical/electronic components for M, N, O, L vehicles.
2 Normative references
The following referenced documents are indispensable for the application 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 29259, Road vehicle - Electromagnetic compatibility terminology
GB/T 33014.1-2016, Road vehicles - Component test methods for
electrical/electronic disturbances from narrowband radiated electromagnetic
energy - Part 1: General (ISO 11452-1:2005, MOD)
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 29259 as
well as the followings apply.
3.1 capacitive coupling clamp; CCC
a dedicated fixture that capacitively couples fast transient test pulses to the test signal
line without the need for electrical connection to the circuit terminals or any other part
of the test device
3.2 degradation (of performance)
undesirable deviation from normal performance in the operating performance of a
device, equipment or system
NOTE: The word "degradation" can be used for temporary or permanent failure.
3.3 direct capacitive coupling; DCC
the method that uses discrete, non-polar capacitors to couple the fast and slow transient
test pulses to the signal lines of the test device
3.4 electromagnetic susceptibility
the ability of a device, equipment or system to not avoid performance degradation in
the presence of electromagnetic disturbances
NOTE: When the sensitivity is high, the disturbance immunity is low.
3.5 inductive coupling clamp; ICC
the probe used for high current injection that couples the slow transient test pulses to
the test signal line, without the need for electrical connection to the circuit terminals or
any other part of the test device
4 General description of GB/T 21437
GB/T 21437 is concerned with electrical transient disturbances in road vehicles and
trailers, involving transient emissions, conduction of electrical transients along cables
and potential susceptibility of electrical/electronic components to electrical transients.
Parts of GB/T 21437 give test methods and procedures, test instruments and limits for
electrical disturbances of electrical/electronic components caused by conduction and
coupling. They provide a standard specification between vehicle manufacturers and
parts suppliers.
Immunity tests for complete vehicles are usually carried out by vehicle manufacturers.
Laboratory test methods are used in the research development and quality control
process of electrical/electronic components.
The tests in each part of GB/T 21437 are "bench tests". Some of the bench test methods
require the use of artificial networks. This is for comparability between the results of
different laboratories. These test results can guide component and system development
and facilitate the resolution of production-phase problems.
Protecting components and systems from potential harassment is the basis for complete
vehicle validation. It needs to understand the correlation between laboratory
electrical/electronic component testing and real vehicle testing.
A bench test with a test pulse generator can be used to evaluate the immunity of
components to transients on power or data lines. The methods given in the various parts
of GB/T 21437 cannot yet cover all transient forms generated in the vehicle. The test
pulses described in different parts are only characteristic of typical pulses.
......
GB/T 21437.1-2008
Road vehicles.Electrical distrubances from conduction and coupling.Part 1. Definitions and general considerations
ICS 43.040.10
T35
National Standards of People's Republic of China
GB/T 21437.1-2008/ISO 7637-1.2002
Electrical disturbance caused by conduction and coupling of road vehicles
Part 1. Definition and general description
(ISO 7637-1.2002, IDT)
Released on.2008-06-19
2009-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Foreword
GB/T 21437 "Electrical disturbances caused by conduction and coupling of road vehicles" consists of three parts.
--- Part 1. Definition and general description;
--- Part 2. Electrical transient conduction along the power line;
--- Part 3. Electrical transients of the conductors other than the power line through capacitive and inductive coupling.
This part is the first part of GB/T 21437.
This part is equivalent to ISO 7637-1.2002 "Electrical disturbances caused by conduction and coupling of road vehicles - Part 1. Definitions and
General Description (English version).
This section is proposed by the National Development and Reform Commission.
This part is under the jurisdiction of the National Automotive Standardization Technical Committee.
This section drafted by. China Automotive Technology Research Center.
The main drafters of this section. Xu Li, Liu Xin.
GB/T 21437.1-2008/ISO 7637-1.2002
Electrical disturbance caused by conduction and coupling of road vehicles
Part 1. Definition and general description
1 range
This part of GB/T 21437 defines the basic terms and gives general information. Basic terminology uses electricity that is conductive and coupled
Harassment related terms used in other sections.
2 Normative references
The terms of the following documents become the provisions of this part by reference in this part of GB/T 21437. Quotations with dated
All subsequent amendments (not including errata content) or revisions do not apply to this section. However, encouragement is achieved according to this section
The parties to the agreement study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this
section.
GB/T 4365 Electrotechnical terminology electromagnetic compatibility (GB/T 4365-2003, IEC 60050 (161)..1990, IDT)
IEC 60050-151 International Electrotechnical Vocabulary - Part 151. Electromagnetic
3 Terms and definitions
The following terms and definitions established by IEC 60050-151 apply to this part of GB/T 21437.
3.1
A device or system that functions properly in its electromagnetic environment and does not constitute an unacceptable electromagnetic disturbance to anything in the environment.
ability.
[GB/T 4365]
3.2
Any electromagnetic phenomenon that may degrade the performance of the device, equipment, or system or adversely affect biological or abiotic.
Note. Electromagnetic disturbances may be electromagnetic noise, unwanted signals or changes in the medium itself.
[GB/T 4365]
3.3
Decreased performance of equipment, transmission channels, or systems caused by electromagnetic disturbances.
Note. The English words "interference" and "disturbance" are often used indiscriminately.
[GB/T 4365]
3.4
Undesirable deviations in performance between a device, device, or system from normal performance.
Note. The term "lowering" can be used for temporary or permanent failure.
[GB/T 4365]
GB/T 21437.1-2008/ISO 7637-1.2002
3.5
The ability of a device, device, or system to not degrade performance when exposed to electromagnetic disturbances.
[GB/T 4365]
3.6
In the presence of electromagnetic disturbances, the device, device or system cannot avoid the ability to degrade performance.
Note. Strong sensitivity means weak immunity.
[GB/T 4365]
3.7
a) the phenomenon that energy is emitted from the source into space in the form of electromagnetic waves;
b) Energy travels in space in the form of electromagnetic waves.
Note. The meaning of the term “electromagnetic radiation” can sometimes be extended to include electromagnetic induction.
[GB/T 4365]
3.8
Shielded room screenedroom
A mesh or sheet metal housing specifically designed to isolate the internal and external electromagnetic environment.
[GB/T 4365]
3.9
A conductive plane whose potential is used as a common reference potential.
[GB/T 4365]
3.10
Connect to the network where the power of the device under test is incoming. It provides a specified load for the measurement of disturbance voltage over a given frequency range
Impedance and isolate the device under test from the power supply.
3.11
A physical quantity or physical phenomenon that changes between two adjacent stable states whose change time is less than the time scale of interest.
Note. Transients are a general term that can be used to describe a single pulse or burst (a complex sequence of transient voltage changes).
3.12
The maximum value of the transient (pulse) amplitude.
3.13
A relatively stable transient with specific shape and time characteristics.
3.13.1
The pulse value rises to a duration between 10% peak and drop to 10% peak.
3.13.2
The time it takes for the pulse value to rise from the 10% peak to the 90% peak.
GB/T 21437.1-2008/ISO 7637-1.2002
3.13.3
The time it takes for the pulse to drop from a 90% peak to a 10% peak.
3.14
Transient consisting of a sequence of complex voltage changes
Note. For bursts, in addition to the parameters given in 3.13, there are also correlations with the parameters given in 3.14.1 to 3.14.4.
3.14.1
The time required for a series of complex transient voltage changes in a single burst.
3.14.2
The time between the end of a burst and the start of the next burst.
3.14.3
The time between the start of the first pulse of two adjacent bursts.
3.14.4
In a burst, the interval between the start of two repeated pulses.
3.15
A classification system that describes the performance state of a function of a device under test conditions.
3.15.1
The device is exposed to the electromagnetic environment and thereafter.
3.15.2
(Test method) A representative pulse applied to the device under test.
3.15.3
A level specification that tests the severity of pulse level parameters.
3.16
The interaction between the (electrical) circuits whereby energy is transferred from one loop to the other.
3.16.1
A circuit that transfers energy from one loop to another.
3.16.2
A circuit that reduces or eliminates electrical disturbances coupled from one loop to another.
3.16.3
A device that has a certain size and electromagnetic properties and that couples the disturbance transient common mode to the circuit under test in the absence of an electrical connection.
GB/T 21437.1-2008/ISO 7637-1.2002
Book GB/T 21437.1-2008/ISO 7637-1.2002
4 GB/T 21437 overall goals and practical applications
GB/T 21437 is concerned with the problem of transient disturbances in road vehicles and their trailers. It involves transient launches, instants along the wire
State conduction and the potential sensitivity of electronic components to electrical transients.
The test methods and procedures, test instruments and limits given in the various sections are intended to simplify the electromechanical parts caused by conduction and coupling.
The standard specification for disturbances provides a basis for agreement between the vehicle manufacturer and the component supplier to help rather than constrain.
Due to the secrecy of the prototype or a large number of different models, the immunity test of the vehicle is usually only carried out by the vehicle manufacturer. because
Laboratory test methods are used by vehicle manufacturers and equipment manufacturers to test the development and quality control of electronic components.
The tests specified in the different sections are referred to as "stand test." Some of the bench test methods require the use of a manual network that can provide different
Comparable results between laboratories. At the same time, these tests also give the basis for device and system development and can be applied in the production phase.
Protecting the system from potential harassment should be considered part of the vehicle's confirmation. Understand the correlation between laboratory testing and real vehicle testing
It is very important.
A bench test using a test pulse generator can be used to evaluate the transient immunity of the device to the power or data lines. this method
It is not possible to cover all transient forms produced in a vehicle, and the test pulses described in the different sections are only typical pulse characteristics.
Some devices are particularly sensitive to some characteristics of electrical disturbances such as pulse repetition rate, pulse width, and time relative to other signals. a standard
The test cannot be applied to all situations. For this particular, potentially sensitive device, it is necessary for the designer to design and
A deep understanding of the function to anticipate appropriate test conditions.
The device under test shall be subjected to the test applicable to the device specified in the relevant part of GB/T 21437. For those who need to reproduce the measured equipment
Tests on the use and installation location should be written into the test plan to help ensure that potentially sensitive components and systems are technically and economically
Line optimization design.
2002.
OSI/8002-
1.
T/B
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