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GB/T 19951-2005 (GBT 19951-2005)

GB/T 19951-2005_English: PDF (GBT19951-2005)
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GB/T 19951-2005English85 Add to Cart 0--10 minutes. Auto-delivered. Road vehicles -- Test methods for electrical disturbances from electrostatic discharge GB/T 19951-2005 Obsolete GB/T 19951-2005
 

BASIC DATA
Standard ID GB/T 19951-2005 (GB/T19951-2005)
Description (Translated English) Road vehicles - Test methods for electrical disturbances from electrostatic discharge
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard L06
Classification of International Standard 33.100
Word Count Estimation 19,183
Date of Issue 2005-10-08
Date of Implementation 2006-04-01
Adopted Standard ISO 10605-2001, IDT
Drafting Organization China Automotive Technology and Research Center
Administrative Organization National Automotive Standardization Technical Committee; National Standardization Technical Committee of radio interference
Regulation (derived from) Announcement of Newly Approved National Standards No. 13 of 2005 (No. 87 overall)
Proposing organization National Development and Reform Commission
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee
Summary This standard specifies the installation in road vehicles within the electronic modules and systems, electrostatic discharge (ESD) test methods, including in the two states bench and vehicle electronic module of the program under evaluation. In addition, the standard also specifies requirements for packaging as shipped in ESD Sensitivity Classification module test procedures, test for electrostatic discharge simulator calibration procedures, and functional status classification for immunity. This standard applies to all road vehicles, no matter what it is using the drive system (eg spark ignition engines, diesel engines, electric motors).

GB/T 19951–2005
ICS 33.100
L 06
NATIONAL STANDARD GB
OF THE PEOPLE’S REPUBLIC OF CHINA
GB/T 19951-2005 / ISO 10605. 2001
Road vehicles - Test methods for electrical
disturbances from electrostatic discharge
(ISO 10605. 2001, IDT)
ISSUED ON. OCTOBER 08, 2005
IMPLEMENTED ON. APRIL 01, 2006
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
4 Test equipment ... 6
5 Test procedure for electronic modules (powered-up test) ... 9
6 Test procedure for vehicle tests ... 12
7 Electronic module sensitivity classification for packaging and
handling (unpowered test) ... 14
Annex A (Normative) Electrostatic discharge simulator verification ... 19
Annex B (Normative) Failure mode severity classification and test
severity levels ... 25
Foreword
This Standard equivalently adopts ISO 10605. 2001 Road vehicles - Test methods for
electrical disturbances from electrostatic discharge.
Major differences between this Standard and ISO 10605. 2001 are as follows.
— In Chapter 2, Normative reference of ISO 10605. 2001 is IEC 61000-4-2. 1995, this
Standard’s reference is National Standard. GB/T 17626.2-1998 which is equivalent to
IEC 61000-4-2. 1995.
Annex A and B of this Standard are normative annex.
This Standard is proposed by National Development and Reform Commission.
This Standard is under the jurisdiction of National Automobile Standardization Technical
Committee and National Radio Disturbance Standardization Technical Committee.
The drafting organization. Chinese Automotive Technology & Research Centre.
The chief drafting staffs of this Standard. Xu Li, and Wang Weimin.
Road vehicles - Test methods for electrical
disturbances from electrostatic discharge
1 Scope
This Standard specifies electrostatic discharge (ESD) test methods for evaluating
electronic modules intended for use in road vehicles, including procedures for evaluating
electronic modules both on the bench and in completed vehicles. Additionally, it specifies
a test procedure for classifying the ESD sensitivity of modules for packaging and handling,
and a procedure for calibrating the simulator used to generate the electrostatic discharge,
as well as functional status classifications for immunity to ESD.
This Standard is applicable to all types of road vehicles, regardless of the vehicle
propulsion system (e.g. spark-ignition engine, diesel engine, or electric motor).
2 Normative references
The articles contained in the following documents become part of this Standard when they
are quoted herein. For the dated documents so quoted, all the modifications (excluding
corrections) or revisions made thereafter shall not be applicable to this Standard. For the
undated documents so quoted, the latest editions shall be applicable to this Standard.
GB/T 17626.2-1998 Electromagnetic compatibility (EMC) - Testing and measurement
techniques - Electrostatic discharge immunity test (idt IEC 61000-4-2. 1995)
ISO 7637-1 Road vehicles - Electrical disturbances from conduction and coupling - Part
1. Definitions and general considerations
ISO 7637-2 Road vehicles - Electrical disturbances from conduction and coupling - Part
2. Electrical transient conduction along supply lines only
3 Terms and definitions
For the purpose of this Standard, the following terms and definitions shall apply.
polarity and then with the opposite polarity.
Operate the various systems such as heater controls, air-conditioner controls, radio
controls and digital displays periodically during the test to confirm normal responses.
6.3 Requirement
The functional status of the device under test shall be as agreed upon on the basis of
annex B.
6.4 Test report
Record relevant test vehicle information, any specific test conditions, and all deviations
from normal vehicle operation (visible, audible, failures, etc.) in the test report.
7 Electronic module sensitivity classification for packaging and handling
(unpowered test)
7.1 General provisions
Prior to perform the test, generate a test plan that includes interface test points, electronic
module mode of operation, number of modules to be tested, and any special instructions
and changes from the standard test.
Before applying any discharge to the device under test, verify that the ESD simulator
discharge verification procedures of annex A have been performed within the time period
established by the laboratory or the customer.
All containers of ESD-sensitive devices and, where required, the ESD-sensitive devices
themselves shall be clearly marked with a standard ESD warning label.
For the packaging and handling test, the ESD simulator shall be configured with the 150
pF capacitor probe shown in Figure 1 b).
Maintain the ambient temperature during the test at (23 ± 5) °C and the relative humidity
at between 30 % and 60 % (20 °C and 30 % RH is preferred), or using other recognizable
conditions, in this case it shall be documented in the test report.
B.3 Functional status classification
All classifications given below are for the all device/system functional status.
NOTE. The word “function” as used here concerns only the function performed by the electronic system.
— Class A. all functions of a device or system perform as designed during and after
exposure to interference.
— Class B. all functions of a device/system perform as designed during exposure;
however, one or more of them may go beyond the specified tolerance. All functions return
automatically to within normal limits after exposure is removed. Memory functions shall
remain class A.
— Class C. one or more functions of a device or system do not perform as designed
during exposure but return automatically to normal operation after exposure is removed.
— Class D. one or more functions of a device or system do not perform as designed
during exposure and do not return to normal operation until exposure is removed and the
device or system is reset by a simple “operator/use” action.
— Class E. one or more functions of a device or system do not perform as designed
during and after exposure and cannot be returned to proper operation without repairing or
replacing the device or system.
B.4 Classification of test severity levels
B.4.1 General provisions
The suggested minimum and maximum severity levels are given in Tables B.1 and B.2.
Additional test levels may be chosen by agreement between vehicle manufacturer and
supplier. It is recommended that tests be carried at all levels according to Tables B.1 and
B.2.
B.4.2 Electronic module test levels
Table B.1 presents the test severity levels used during electronic module testing.
Table B.3 — Test levels for handling classification of electronic modules
(un-powered test)
Type of discharge Test level b /kV Minimum number
of discharge a
Direct discharge ±4 ±6 ±8
Air discharge ±4 ±15 ±25
a Minimum interval between discharges is 5 s.
b Recommended test sequence is to perform ± 8 kV air discharge before ± 8 kV direct discharge.
B.5 Presentation of results
The examples in Table B.4 (module test) and Table B.5 (vehicle test) illustrate how the
failure mode severity classification may be used to characterize the function performance
of a device.
Table B.4 — Module test
Type of
discharge
Functional status at test level Remarks
I II III IV
Direct discharge A B C E
Air discharge A B D E
Table B.5 — Vehicle test
Condition Functional status at test level
Remarks
I II III IV
Accessible only
from inside
vehicle
Function 1 A B C D
Function 2 A C D E
Accessible from
outside vehicle
Function 1 A C D D
Function 2 A C D E