Road vehicles一Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy一 Part2:Absorbe-lined shielded enclosure
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GB/T 33014 consists of the following parts under the general title Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy:
——Part 1: General;
——Part 2: Absorber-lined shielded enclosure;
——Part 3: Transverse electromagnetic (TEM) cell;
——Part 4: Bulk current injection (BCI);
——Part 5: Stripline;
——Part 7: Direct radio frequency (RF) power injection;
——Part8: Immunity to magnetic field;
——Part 9: Portable transmitters;
——Part 10: Immunity to conducted disturbances in the extended radio frequency range;
——Part 11: Reverberation chamber.
This is Part 2 of GB/T 33014.
This part is developed in accordance with the rules given in GB/T 1.1-2009.
This part has been redrafted and modified in relation to 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 deviations between this part and ISO 11452-2: 2004 and their justifications are as follows:
——Clause 1 is normatively prepared in accordance with GB/T 1.1-2009;
——the contents not applicable to Clause 1 in the original international standard (“Standard test conditions…for the following”, etc.) are transferred into test conditions in Clause 4;
——ISO 11452-1 referenced in the original international standard is changed to GB/T 33014.1-2016 modified in relation to ISO 11452-1: 2005;
——in order to realize the consistency with Part 1 in the understanding and representation method, I, II, III, IV, V given in Table C.1 are changed to L1, L2, etc., and I, II, III, etc. are understood as statuses I, II, III, etc.;
The following editorial changes have been made in this part:
——“Foreword” and “Introduction” of the original international standard are deleted.
——in order to be consistent with other parts, the note “See GB/T 33014.1 for detailed description on FPSC” is added in Annex C.
This part was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This part is under the jurisdiction of the National Technical Committee of Auto Standardization (SAC/TC 114).
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 component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - absorber-lined shielded enclosure.
This part is applicable to electrical/electronic components for Categories M, N, O and L vehicles, regardless of vehicle propulsion system (e.g. spark-ignition engine, diesel engine and electric motor).
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 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 given 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 users shall specify the test severity level(s) over the frequency range. Suggested test severity levels are included in Annex C.
The device under test (DUT), together with the wiring harness (prototype or standard test harness), is subjected to an electromagnetic disturbance generated inside an absorber-lined shielded enclosure, with peripheral devices either inside or outside the enclosure.
Standard test conditions shall be according to GB/T 33014.1-2016 for the following:
——test temperature;
——test voltage;
——modulation;
——dwell time;
——frequency step sizes;
——definition of test severity levels;
——test signal quality.
5 Test location
The tests shall be performed in an absorber-lined shielded enclosure (simulated open field).
Basically, an absorber-lined shielded enclosure consists of a shielded room with absorbing material on its internal reflective surfaces, optionally excluding the floor. The design objective is to attenuate the reflected energy in the test area by at least 10 dB compared to the direct energy.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions
5 Test location
6 Test apparatus and equipment
7 Test set-up
8 Test method
Annex A (Informative) Artificial network (AN)
Annex B (Informative) Remote/local grounding
Annex C (Informative) Function performance status classification (FPSC)
