GB/T 33014.2-2016 English PDF (GBT33014.2-2016)

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GB/T 33014.2-2016: Road vehicles -- Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy -- Part 2: Absorber-lined shielded enclosure
GB/T 33014.2-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
T 36
Road vehicles - Component test methods for
electrical/electronic disturbances from narrowband
radiated electromagnetic energy –
Part 2. Absorber-lined shielded enclosure
(ISO 11452-2.2004, Road vehicles - Component test methods for electrical
disturbances from narrowband radiated electromagnetic energy - Part 2.
Absorber-lined shielded enclosure, MOD)
ISSUED ON. OCTOBER 13, 2016
IMPLEMENTED ON. NOVEMBER 1, 2017
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.
3. No action is required - Full-copy of this standard will be automatically and
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Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Test conditions ... 5
5 Test location ... 6
6 Test apparatus and instrumentation ... 6
7 Test set-up ... 7
8 Test method ... 13
Annex A (informative) Artificial network (AN) ... 16
Annex B (informative) Remote/local grounding ... 18
Annex C (informative) Function performance status classification (FPSC) ... 20
Foreword
GB/T 33014 “Road vehicles - Component test methods for electrical/electronic
disturbances from narrowband radiated electromagnetic energy” consists of the
following parts.
- Part 1. General;
- Part 2. Absorber-lined shielded enclosure;
- Part 3. Transverse electromagnetic (TEM) cell;
- Part 4. Bulk current injection (BCI);
- Part 5. Stripeline;
- Part 7. Direct radio frequency (RF) power injection;
- Part 8. Magnetic field immunity;
- Part 9. Portable transmitter simulation;
- Part 10. Conduction immunity method for extended audio range;
- Part 11. Reverberation chamber.
This Part is Part 2 of GB/T33014.
This Part is drafted in accordance with the rules given in GB/T 1.1-2009.
This Part uses the re-drafting method to modify and adopt ISO 11452-2.2004 “Road
vehicles - Component test methods for electrical disturbances from narrowband
radiated electromagnetic energy - Part 2. Absorber-lined shielded enclosure”.
The technical differences between this Part and ISO 11452-2.2004 are as follows.
- PREPARE Clause 1 according to the provisions of GB/T 1.1-2009;
- MOVE the content (“the following standard test conditions ...”) in the original
international standard not suitable for Clause 1 TO Clause 4 “Test conditions”.
- REPLACE the reference standard ISO 11452-1 WITH GB/T 33014.1-2016
modifying and adopting ISO 11452-1.2005.
- For consistency in understanding and presentation with Part 1, I, II, III, IV, V of
Table C.1 are changed to L1, L2, etc., and I, II, III, etc. are understood as state I,
II, III, etc.
The following editorial changes have been made in this Part.
Road vehicles - Component test methods for
electrical/electronic disturbances from narrowband
radiated electromagnetic energy –
Part 2. Absorber-lined shielded enclosure
1 Scope
This Part of GB/T 33014 specifies the immunity test for electrical/electronic
components (ESA) to continuous electrical disturbances from narrowband radiated
electromagnetic energy - absorber-lined shielded enclosure.
This Part applies to electrical/electronic components for M, N, O, L vehicles (regardless
of the vehicle power system, e.g. spark-ignition engine, diesel engine, electric motor).
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the dated edition cited applies. For undated
references, the latest edition of the referenced document (including all amendments)
applies.
GB/T 33014.1-2016 Road vehicles - Component test methods for
electrical/electronic disturbances from narrowband radiated electromagnetic energy
- Part 1. General provisions (ISO 11452-1.2005, MOD)
3 Terms and definitions
For the purpose of this document, the terms and definitions defined in GB/T 33014.1-
2016 apply.
4 Test conditions
The applicable frequency range of the absorber-lined shielded enclosure test method
is 80 MHz to 18 GHz. The user shall specify the test severity level(s) over the frequency
range. Suggested test levels are shown in Annex C.
7.2 Power supply and artificial network (AN)
Each DUT power supply lead shall be connected to the power supply through an AN.
Power supply is assumed to be negative ground. If the DUT utilizes a positive ground,
then the test set-ups shown in the figures need to be adapted accordingly. Power shall
be applied to the DUT via a 5 μH/50 Ω AN (see Annex A for the circuit schematic). The
number of ANs required depends on the intended DUT installation in the vehicle.
- For a remotely grounded DUT (vehicle power return line longer than 200 mm), two
ANs are required. one for the positive supply line and another for the power return
line (see Annex B).
- For a locally grounded DUT (vehicle power return line 200 mm or shorter), only
one AN is required, for the positive supply (see Annex B).
The AN(s) shall be mounted directly on the ground plane. The case or cases of the
AN(s) shall be bonded to the ground plane. The power supply return shall be
connected to the ground plane (between the power supply and the AN(s)). The
measuring port of each AN shall be terminated with a 50 Ω load.
7.3 Location of DUT
The DUT shall be placed on a non-conductive, low relative permittivity (dielectric-
constant) material (εr ≤ 1.4), at (50 ± 5) mm above the ground plane. The case of the
DUT shall not be grounded to the ground plane unless it is intended to simulate the
actual vehicle configuration. The face of the DUT shall be located at a distance of (200
± 10) mm from the edge of the ground plane.
7.4 Location of test harness
The part of the test harness parallel to the front edge of the ground plane shall be
(1500 ± 75) mm.
The total length of the test harness between the DUT and the load simulator (or the
RF boundary) shall not exceed 2 000 mm. The wiring type is defined by the actual
system application and requirement.
The test harness shall be placed on a non-conductive, low relative permittivity
(dielectric-constant) material (εr ≤ 1.4), at (50 ± 5) mm above the ground plane. That
part of the test harness parallel to the front edge of the ground plane shall be at a
distance of (100 ± 10) mm from the edge of the ground plane.
7.5 Location of load simulator
Preferably, the load simulator shall be placed directly on the ground plane. If the load
simulator has a metallic case, this case shall be bonded to the ground plane.
8.3.1 Substitution method
The test shall be performed with the substitution method, which is based upon the use
of forward power as the reference parameter used for field calibration and test. This
method is carried out in two phases.
a) field calibration (without the DUT, wiring harness and peripheral devices present,
see 8.3.2);
b) test of the DUT with wiring harness and peripheral devices connected (see 8.3.3).
The RF power required to achieve the required field strength is determined during the
field calibration phase.
8.3.2 Field calibration
The specific test level (field strength) shall be calibrated periodically by recording the
forward power required to produce a specific field strength (measured with a field
...