Skip to product information
1 of 8

PayPal, credit cards. Download editable-PDF and invoice in 1 second!

GB/T 24338.4-2018 English PDF (GBT24338.4-2018)

GB/T 24338.4-2018 English PDF (GBT24338.4-2018)

Regular price $145.00 USD
Regular price Sale price $145.00 USD
Sale Sold out
Shipping calculated at checkout.
Quotation: In 1-minute, 24-hr self-service. Click here GB/T 24338.4-2018 to get it for Purchase Approval, Bank TT...

GB/T 24338.4-2018: Railway applications -- Electromagnetic compatibility -- Part 3-2: Rolling stock -- Apparatus

This part of GB/T 24338 specifies the emission and immunity requirements for electromagnetic compatibility of electrical and electronic apparatus for railway rolling stock. This part applies to integration of apparatus on rolling stock. The frequency range considered in this part is from 0 GHz ~ 400 GHz. No measurements need to be performed at frequency band where no requirement is specified.
GB/T 24338.4-2018
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 29.280
S 35
Replacing GB/T 24338.4-2009
Railway applications - Electromagnetic compatibility -
Part 3-2. Rolling stock - Apparatus
(IEC 62236-3-2.2008, MOD)
ISSUED ON. JUNE 07, 2018
IMPLEMENTED ON. JANUARY 01, 2019
Issued by. State Market Regulatory Administration;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 7
2 Normative references ... 8
3 Terms and definitions ... 9
4 Performance criteria ... 10
5 Test conditions ... 10
6 Emission test and limits ... 11
7 Immunity test and limits ... 13
Appendix A (Informative) Examples of electrical apparatus and port ... 16 Appendix B (Informative) Conducted disturbance generated by power converter ... 21
References ... 22
Foreword
GB/T 24338 ?€?Railway applications - Electromagnetic compatibility?€? consists of the following parts.
- Part 1. General;
- Part 2. Emission of the whole railway system to the outside world;
- Part 3-1. Rolling stock - Train and complete vehicle;
- Part 3-2. Rolling stock - Apparatus;
- Part 4. Emission and immunity of the signaling and telecommunications apparatus;
- Part 5. Emission and immunity of fixed power supply installations and apparatus.
This part is part 3-2 of GB/T 24338.
This part was drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 24338.4-2009 ?€?Railway applications - Electromagnetic compatibility - Part 3-2. Rolling stock - Apparatus?€?. As compared with GB/T 24338.4-2009, the main technical changes are as follows.
- ADD the requirements of the test report (see clause 5);
- ADD the measurement requirements, CLARIFY that frequencies that are
not required are not tested (see clause 1);
- ADD the general EMC requirements (see clause 6);
- DELETE the measurement requirements for the emission of 9 kHz ~ 0.15
MHz from the Table (see clause 7 of the 2009 version);
- DELETE the Tables 1 and 2 (see clause 7 of the 2009 version);
- MODIFY the Table 3, CHANGE the public AC power supply requirements
from the note of the Table to the Table entry requirements (see Table 1; Table 3 of the 2009 version);
- DELETE the Table 5 (see clause 7 of the 2009 version);
- MODIFY the surge test requirements of Table 7 (see Table 4; Table 7 of the 2009 version);
Railway applications - Electromagnetic compatibility -
Part 3-2. Rolling stock - Apparatus
1 Scope
This part of GB/T 24338 specifies the emission and immunity requirements for electromagnetic compatibility of electrical and electronic apparatus for railway rolling stock. This part applies to integration of apparatus on rolling stock. The frequency range considered in this part is from 0 GHz ~ 400 GHz. No measurements need to be performed at frequency band where no requirement is specified.
The test methods used are related to the particular apparatus, structure, port, technology and operating conditions.
This part takes into account the internal environment of the railway rolling stock and the external environment of the railway, as well as interference from other apparatus to the apparatus, such as hand-held radio transmitters.
The radiated emissions requirements as specified in this part do not apply to intentional emissions from ITU-defined wireless transmitters.
The limits for immunity are not applicable to the excluded bands as specified in the EMC related standards for wireless devices.
This part does not apply to transient emissions when starting or stopping the device.
The selected emission requirements shall ensure that the interferences caused by the normal operation of the apparatus on the railway rolling stock does not exceed the level that would interfere with the normal operation of other apparatus.
In addition, the selected immunity requirements shall ensure that the immunity of the rolling stock apparatus is sufficiently severe. The severity does not include extreme situations where the probability is very small. Special requirements that are inconsistent with this part need to be specifically pointed out.
The test requirements for each port are specified.
The specific provisions of this part shall be used in conjunction with the general provisions of GB/T 24338.1.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.
GB/T 4365 Electrotechnical terminology - Electromagnetic compatibility
[GB/T 4365-2003, IEC 60050 (161).1990, IDT]
GB/T 6113.101 Specification for radio disturbance and immunity measuring apparatus and methods of measurement - Part 1-1. Radio disturbance and
immunity measuring apparatus - Measuring apparatus (GB/T 6113.101-
2016, CISPR 16-1-1.2010, IDT)
GB/T 6113.104 Radio disturbance and immunity measuring apparatus and
methods - Part 1-4. Radio disturbance and immunity measuring apparatus - Radiated disturbance measuring antenna and test site (GB/T 6113.104-
2016, CISPR 16 -1-4.2012, IDT)
GB/T 6113.201 Specification for radio disturbance and immunity measuring apparatus and methods. Part 2-1. Methods of measurement of disturbances and immunity. Conducted disturbance measurements (GB/T 6113.201-
2017, CISPR 16-2-1.2010, IDT)
GB/T 6113.203 Specification for radio disturbance and immunity measuring apparatus and methods of measurement - Part 2-3. Methods of
measurement of radio disturbance and immunity - Radiated disturbance
measurements (GB/T 6113.203-2016, CISPR 16-2-3.2010, IDT)
GB/T 9254 Radio communication disturbance limits and measurement
methods for information technology apparatus (GB/T 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 Electromagnetic compatibility - Testing and measurement
techniques - Radiated radio-frequency electromagnetic field immunity test (GB/T 17626.3-2016, IEC 61000-4-3.2010, IDT)
GB/T 17626.4 Electromagnetic compatibility - Testing and measurement
techniques - Electrical fast transient/burst immunity test (GB/T 17626.4-2008, ports (for example, select 4 ports or 20% of the total) to simulate the field conditions, to ensure that all different types of ports are covered.
Unless otherwise specified in the basic criteria given in clause 7, during the test, the EUT shall use the rated power supply and work within the specified
operating range.
The measurements specified in this part shall be performed on the relevant port of the apparatus. If it considers the electrical performance, connection and use of rolling stock apparatus, some tests may not be necessary (for example, radiation immunity tests are not necessary for induction motors and
transformers), but the test program and test report shall record the decisions on which tests are not performed.
Unless otherwise specified, the electromagnetic compatibility test is the content of the type test.
6 Emission test and limits
The emission test and limits are specified in accordance with the port type. See Table 1 ~ Table 3 for details.
Each type of interference shall be measured under defined and repeatable conditions. Tables 1 ~ 3 give the specific requirements of the test. For the basic standards given in Tables 1 ~ 3, it is limited to use the test instructions, test methods and test configurations of these standards.
Traction AC and DC power port?€?s emission limits are not required, the
conducted emission measurement method is shown in Appendix B.
Table 1 -- Emission-AC or auxiliary DC power ports (input and output
ports)
S/N Port Test requirements Basic standard
Test
configuration Descriptions
1.1
Auxiliary AC or
DC power
ports (port 9 in
Figure A.1,
Figure A.2,
Figure A.4)
0.15 MHz
~ 500
kHz
99 dB ??V
quasi-peak
GB/T 6113.201
The limits also apply to power
ports that supply railway systems
from outside of the railway
system. Train operators may
specify the limit requirements
(e.g., low voltage power supplies
for public use) for other
conditions a, b and c
500 kHz
~ 30 MHz
93 dB ??V
quasi-peak
1.2
AC power
sockets for
public use
50 Hz ~ 2
kHz
THD < 8%
(THD. total
harmonic
GB/T
17626.30 -
The 220V AC power socket used
by the public shall ensure that
the power quality meets the
d If one of the requirements of 1.1, 1.2 and 1.3 in Table 1 of GB 17799.4-2012 is met, the EUT can be considered to meet the emission requirements below 1 GHz of the enclosure port. e If the maximum operating frequency of the EUT is less than 108 MHz, the test frequency is not more than 1 GHz.
If the maximum operating frequency of the EUT is greater than or equal to 108 MHz and less than 500 MHz, the test frequency is not greater than 2 GHz.
If the maximum operating frequency of the EUT is greater than or equal to 500 MHz and less than or equal to 1 GHz, the test frequency is not greater than 5 GHz.
If the maximum operating frequency of the EUT is greater than 1 GHz or unknown, the test frequency is not more than 6 GHz.
f The peak detector?€?s limit does not apply to disturbances caused by high voltage breakdown, such as arcing or sparking, which typically occur on devices that are prone to static electricity (e.g., pagers) or devices that control the inductor current through mechanical switches. The mean value?€?s limits apply only to devices that generate arc or spark interference, while devices that generate other disturbances shall meet both peak and average limit requirements.
g The transition frequency uses lower limit requirements.
7 Immunity test and limits
This clause specifies the immunity test and limits in accordance with the port type. See Table 4 ~ Table 6 for details.
Tables 4 ~ 6 give the specific requirements of the test. For the basic standards given in Tables 4 ~ 6, it is limited to use the test instructions, test methods and test settings of these standards.
The test method shall be clear and the test results can be reproduced. The test shall be carried out item by item, the test sequence can be selected.
To ensure the immunity level of the entire rolling stock, the limits apply to all rolling stock apparatus.
It should develop an electromagnetic compatibility management plan, to ensure that the installation of existing rolling stock or the replacement of new apparatus does not reduce EMC performance.
Table 4 -- Immunity-battery port (except for power output port), auxiliary AC power input port (rated voltage rms value is not greater than 400 V) S/N Environment phenomenon Test requirements
Basic
standard/
test
configuration
Performance
criteria Descriptions
4.1 RF common mode
0.15 MHz ~
80 MHz; 10 V
(square root
Unmodulated
carrier
GB/T
17626.6 A
Test severity is defined as
non-modulated rms a
Appendix A
(Informative)
Examples of electrical apparatus and port
The purpose of this Appendix is to provide examples of different types of rolling stock apparatus and their ports. Table A.1 gives examples of apparatus that can be marketed as separate industrial units, but these apparatuses may also become subsystems of larger apparatus (such as electronic controls for
auxiliary converters). In this case, the standard provisions only apply to apparatus entering the market. The ports in the standard are defined as the interface between the apparatus and the external environment. Table A.1 lists whether each specific apparatus is related to emissions and immunity. This description is provided for the convenience of this part?€?s user, so that the standard user can make the necessary technical judgment when deciding
whether to conduct some kind of tests, but it is not decisive.
Table A.1 --Test requirements for typical apparatus
Apparatus Test requirements
Traction converter Emission and immunity
Main circuit breaker No test requirements
Traction transformer No test requirements
Traction motor No test requirements
Auxiliary motor Emission and immunity
Auxiliary DC power supply (battery) Emission and immunity
Electronically controlled power supply Emission and immunity
Signal and communication apparatus Emission and immunity
Electronic human-machine interface apparatus Emission and immunity
Environmental conditioning apparatus Emission and immunity
Passenger information apparatus Emission and immunity
Door control Emission and immunity
Train running?€?s auxiliary apparatus Emission and immunity
Passenger service?€?s auxiliary apparatus Emission and immunity
Train management system Emission and immunity
Electronic power supply Emission and immunity
Brake control system Emission and immunity
Tables 1 ~ 6 specify tests for a specific port (an interface for electrical apparatus). Typical examples of these ports and apparatuses are shown in Table A.2, the schematic diagrams of these ports (except for port 11, port 13, and port 14) are shown in Figure A.1 ~ Figure A.5.

View full details