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Position: Chinese Standard in English/GB/T 33014.4-2016
GB/T 33014.4-2016   Road vehicles―Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy―Part 4:Bulk current injection (BCI) (English Version)
Standard No.: GB/T 33014.4-2016 Status:valid remind me the status change

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Standard No.: GB/T 33014.4-2016
English Name: Road vehicles―Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy―Part 4:Bulk current injection (BCI)
Chinese Name: 道路车辆 电气/电子部件对窄带辐射电磁能的抗扰性试验方法 第4部分:大电流注入(BCI)法
Chinese Classification: T36    Electronic and electrical equipment
Professional Classification: GB    National Standard
ICS Classification: 43.040.10 43.040.10    Electrical and electronic equipment 43.040.10
Issued by: AQSIQ;SAC
Issued on: 2016-10-13
Implemented on: 2017-11-1
Status: valid
Language: English
File Format: PDF
Word Count: 8500 words
Price(USD): 120.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. 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; ——Part 8: Immunity to magnetic field; ——Part 9: Portable transmitters; ——Part 10: Immunity to conducted disturbances in the extended audio frequency range; ——Part 11: Reverberation chamber. This part is Part 4 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 11452-4: 2005, Road vehicles - Component test methods for electrical disturbances from narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCI). The technical deviations between this part and ISO 11452-4: 2005 and their justifications are as follows: ——Clause 1 is normatively prepared in accordance with GB/T 1.1-2009; ——ISO 11452-1 referenced in the original international standard is changed to GB/T 33014.1 modified in relation to ISO 11452-1; ——"AN, see Annex C for a schematic” given in Sub-clause 7.2 of the original international standard is changed to “AN, see Annex A of GB/T 33014.2-2016 for a schematic”, which is equivalent to the former in contents, to avoid duplication of provisions on the same content and incomplete unification of the original international standard; ——"remotely grounded/ locally grounded... see Annex D" in Sub-clause 7.2 of the original international standard is changed to " remotely/locally grounded... see Annex B of GB/T GB/T 33014.2-2016 ", which is equivalent to the former in contents to avoid duplication of provisions on same content and incomplete unification with the original international standard; ——GB/T 33014.2-2016 is added in “Normative references”; ——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 (Table E.1 in the original international standard) are changed to L1, L2, etc., and I, II, III, etc. are understood as statuses I, II, III, etc.; The following editorial change has been made in this part: ——“Foreword” and “Introduction” in the original international standard are deleted; ——Annexes C and D in the original international standard are deleted, and Annex E in the original international standard is changed to Annex C in this standard. 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 4: Bulk current injection (BCI) 1 Scope This part of GB/T 33014 specifies bulk current injection (BCI) test methods for determining the immunity of electronic components to electrical/electronic disturbances from narrowband radiated electromagnetic energy. 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 engines, diesel engine, 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 (including any amendments) applies. GB/T 33014.1 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 1: General (GB/T 33014.1-2016, ISO 11452-1: 2005, MOD) 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 (ISO 11452-2: 2004, MOD) 3 Terms and definitions For the purpose of this document, the terms and definitions given in GB/T 33014.1 apply. 4 Test conditions The frequency range of the BCL test method is a direct function of the current probe characteristics, ranging from 1 MHz to 400 MHz. More than one type of current probe may be required. The users shall specify the test severity level(s) over the frequency range. Suggested test levels are included in Annex E. Standard test conditions shall be according to GB/T 33014.1 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 test shall be performed in a shielded enclosure. 6 Test apparatus 6.1 General Bulk current injection (BCI) is a method of carrying out immunity tests by inducing disturbance signals directly into the wiring harness by means of a current injection probe. The injection probe is a current transformer through which the wiring harness of the DUT are passed. Immunity tests are carried out by varying the test severity level and the frequency of induced disturbance. 6.2 Instrumentation 6.2.1 Current injection probe or set of probes, capable of operating over the entire test frequency required to couple the test equipment to the DUT. The probe(s) shall be capable of withstanding a continuous input power over the test frequency range regardless of the system loading 6.2.2 Current measurement probe (s): capable of operating over the entire test frequency range. 6.2.3 Artificial network(s) (AN): see Sub-clause 7.2. 6.2.4 RF generator, with internal or external modulation capabilities. 6.2.5 Power amplifier; 6.2.6 Power meter (or equivalent measuring instrument): for measuring forward power and reflected power. 6.2.7 Current measuring equipment. 6.3 Stimulation and monitoring of DUT The DUT shall be operated by actuators that have a minimum effect on the electromagnetic characteristics, e.g. plastic blocks on the push-buttons, pneumatic actuators with plastic tubes. Connections to equipment monitoring electromagnetic interference reactions of the DUT may be accomplished by using fibre-optics, or high-resistance leads. Other types of lead may be used but require extreme care to minimize interactions. The orientation, length and location of such leads shall be carefully documented to ensure repeatability of test results. Any electrical connection of monitoring equipment to the DUT may cause malfunctions of the DUT. Extreme care shall be taken to avoid such effect. 7 Test set-up 7.1 Ground plane The ground plane shall be made of 0.5 mm thick (minimum) copper, brass or galvanized steel. The minimum width of the ground plane shall be 1,000 mm. The minimum length of the ground plane shall be 2,000 mm, or the length of the entire underneath of the equipment plus 200mm, whichever is the larger. The height of the ground plane (test bench) shall be (900±100) mm above the floor. The ground plane shall be electrically overlapped with the shielded enclosure, the distance between grounding copper strips shall not be more than 300 mm, and the DC resistance shall not exceed 2.5 mΩ. 7.2 Power supply and AN The power supply lead of each DUT 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 Figures 1 and 2 need to be adapted accordingly. The power supply shall be applied to the DUT via a 5 μH/50 Ω AN (see Annex A of GB/T 33014.2-2016). 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 one for the power return line (see Annex B of GB/T 33014.2-2016). ——For a locally grounded DUT (vehicle power return line 200 mm or shorter): one AN is required for the positive supply (see Annex B of GB/T 33014.2-2016). The AN(s) shall be directly mounted 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 DUT shall be placed on an insulating support (εr≤1.4) at a position (50±5) mm above the ground plane. The case of the DUT shall not be grounded to the ground plane unless it it intended to simulate the actual vehicle configuration. The face of the DUT shall be located at least 100mm from the edge of the ground plane. There should be a distance at least 500mm between the DUT and any metal part such as the walls of the shielded enclosure, with the exception of the ground plane on which the DUT is placed. 7.4 Location of test harness The total length of the test harness between the DUT and the load simulator (or the RF boundary) shall be (1,000±10) mm, unless otherwise specified in the test plan. The wiring type is determined by the actual system application and requirement. The test harness shall be placed on an insulation support at a position (50±5) mm above the grounding plate. The test harness should be straight over its whole length and of fixed (position and number of wires) composition. It should pass through the current injection and current measurement probes. The length of the wires in the simulator should be short by comparison with the length of the wiring harness. The wires within the simulator should be anchored. 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. Alternatively, the load simulator may be located adjacent to the ground plane (with the case of the load simulator bonded to the ground plane) or outside of the test chamber, provided the test harness from the DUT passes through an RF bounded to the ground plane. When the load simulator is located on the ground plane, the d. c. power supply lines of the load simulator shall be connected through the AN(s).
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Test conditions 5 Test location 6 Test apparatus 7 Test set-up 8 Test methods Annex A (Normative) Current injection probe calibration Annex B (Normative) Test set-up transfer impedance Annex C (Informative) Function performance status classification (FPSC)
Referred in GB/T 33014.4-2016:
*GB/T 33014.1-2016 Road vehicles―Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy―Part 1:General
*GB/T 33014.2-2016 Road vehicles一Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy一 Part2:Absorbe-lined shielded enclosure
*GB/T 33014.1-2016 Road vehicles―Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy―Part 1:General
*GB/T 10288-2016/XG1-2020 Test method for down and feather,includes Amendment 1
*GB/T 17685-2016 Down and feather
*GB 19147-2016/XG1-2018 Automobile diesel fuels, includes Amendment 1
*GB 5009.265-2016 National Food Safety Standard-Determination of Polycyclic Aromatic Hydrocarbons in Foods
*GB/T 33339-2016 Vanadium flow battery system-Test method
*GB 25280-2016 Road traffic signal controller
*GB 4789.34-2016 National Food Safety Standard—Food Microbiological Examination—Examination of Bifidobacterium
*GB 5009.267-2016 National Food Safety Standard Determination of Iodine in Foods
*GB 4789.6-2016 National food safety standard -Microbiological examination of food-Examination of diarrheogenic Escherichia coli
*GB 4789.4-2016 National food safety standard -Microbiological examination of food-Examination of salmonella
*GB 4789.3-2016 National Food Safety Standard-Food Microbiological Examination—Enumeration of Coliforms
*GB 4789.2-2016 National food safety standard -Microbiological examination of food: Aerobic plate count
*GB 4789.1-2016 National Food Safety Standard—Food Microbiological Examination—General
*GB 4789.12-2016 National Food Safety Standard—Food Microbiological Examination—Clostridium Botulinum and Botulinum Toxin
*GB 4789.10-2016 National Food Safety Standard—Food Microbiological Examination—Examination of Staphylococcus Aureus
GB/T 33014.4-2016 is referred in:
*GB 34660-2017 Road vehicles —Requirements and test methods of electromagnetic compatibility
*GB/T 36282-2018 Electromagnetic compatibility requirements and test methods of drive motor system for electric vehicles
*GB/T 33014.1-2016 Road vehicles―Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy―Part 1:General
*GB/T 38661-2020 Technical specifications of battery management system for electric vehicles
*GB/T 38775.5-2021 Electric vehicle wireless power transfer—Part 5:Electromagnetic compatibility requirements and test methods
*QC/T 768-2022 Coach toilet
*QC/T 1175-2022 High voltage contactor for electric vehicles
*GB/T 21437.3-2021 Road vehicles—Test method of electrical disturbances from conduction and coupling—Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
*GB 5009.158-2016 National Food Safety Standard Determination of Vitamin K1 in Foods
*GB 5009.168-2016 National Food Safety Standard —Determination of Fatty Acid in Foods
*GB 5009.263-2016 National Food Safety Standard--Determination of Aspartame and Alitame in Foods
*GB 5009.90-2016 National Food Safety Standard-Determination of Iron in Foods
*GB 5009.89-2016 National Food Safety Standard--Determination of Niacin and Nicotinamide in Foods
*GB 5009.87-2016 National Food Safety Standard Determination of Phosphorus in Foods
*GB 5009.85-2016 National Food Safety Standard-Determination of Vitamin B2 in Foods
*GB 5009.83-2016 National Food Safety Standard Determination of Carotene in Foods
*GB 5009.82-2016 National Food Safety Standard -- Determination of Vitamins A, D and E in Foods
*GB 5009.33-2016 National food safety standard-Determination of nitrite and nitrate in foods
*GB 5009.24-2016 National Food Safety Standard — Determination of M Aflatoxins in Foods
*GB 5009.22-2016 National Food Safety Standard--Determination of B-group and G-group Aflatoxins in Foods
*GB 5009.8-2016 National Food Safety Standard--Determination of Fructose, Glucose, Sucrose, Maltose and Lactose in Foods
*GB 5009.6-2016 National Food Safety Standard — Determination of Fat in Foods
*GB 5009.5-2016 National Food Safety Standard — Determination of Protein in Foods
*GB/T 13667.4-2013 Steel Book Shelves - Part 4: Electric Dense Bookshelf
*GB/T 30366-2013 Terminology Related to Biomass
*GB/T 30420.1-2013 Sewing Machine Terminology - Part 1: Basic Terminology
*GB/T 5169.44-2013 Fire Hazard Testing for Electric and Electronic Products - Part 44: Guidance for Assessing the Fire Hazard - Fire Hazard Assessment
*GB/Z 23751.3-2013 Micro fuel-cell power generation system - Part 3: Interchangeability of fuel vessels
*GB/T 6519-2013 Ultrasonic inspection of wrought aluminium and magnesium alloy products
*GB 19212.17-2013 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100V - Part 17: Particular requirements and tests for switch mode power supply un
*GB 826-1989 key for original document of administration
*GB 11945-1989 Autoclaved lime-sand brick
*GB 10783-1989 Food additive - Chilli orange
*GB 10963-1989 Circuit-breakers for household and similar installations
*GB/T 9770-1988 Steel cord conveyor belts
*GB 10252-1988 Regulations for radiation protection of 60Co irradiation processing facility
*GB 4706.19-1988 Safety of household and similar electrical appliances --Particular requirements for liquid heaters
*GB/T 18488-2024 Drive motor system for electric vehicles
*QC/T 822-2024 Automotive pressure sensor
Code of China
Standard
GB/T 33014.4-2016  Road vehicles―Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy―Part 4:Bulk current injection (BCI) (English Version)
Standard No.GB/T 33014.4-2016
Statusvalid
LanguageEnglish
File FormatPDF
Word Count8500 words
Price(USD)120.0
Implemented on2017-11-1
Deliveryvia email in 1 business day
Detail of GB/T 33014.4-2016
Standard No.
GB/T 33014.4-2016
English Name
Road vehicles―Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy―Part 4:Bulk current injection (BCI)
Chinese Name
道路车辆 电气/电子部件对窄带辐射电磁能的抗扰性试验方法 第4部分:大电流注入(BCI)法
Chinese Classification
T36
Professional Classification
GB
ICS Classification
Issued by
AQSIQ;SAC
Issued on
2016-10-13
Implemented on
2017-11-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
8500 words
Price(USD)
120.0
Keywords
GB/T 33014.4-2016, GB 33014.4-2016, GBT 33014.4-2016, GB/T33014.4-2016, GB/T 33014.4, GB/T33014.4, GB33014.4-2016, GB 33014.4, GB33014.4, GBT33014.4-2016, GBT 33014.4, GBT33014.4
Introduction of GB/T 33014.4-2016
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. 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; ——Part 8: Immunity to magnetic field; ——Part 9: Portable transmitters; ——Part 10: Immunity to conducted disturbances in the extended audio frequency range; ——Part 11: Reverberation chamber. This part is Part 4 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 11452-4: 2005, Road vehicles - Component test methods for electrical disturbances from narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCI). The technical deviations between this part and ISO 11452-4: 2005 and their justifications are as follows: ——Clause 1 is normatively prepared in accordance with GB/T 1.1-2009; ——ISO 11452-1 referenced in the original international standard is changed to GB/T 33014.1 modified in relation to ISO 11452-1; ——"AN, see Annex C for a schematic” given in Sub-clause 7.2 of the original international standard is changed to “AN, see Annex A of GB/T 33014.2-2016 for a schematic”, which is equivalent to the former in contents, to avoid duplication of provisions on the same content and incomplete unification of the original international standard; ——"remotely grounded/ locally grounded... see Annex D" in Sub-clause 7.2 of the original international standard is changed to " remotely/locally grounded... see Annex B of GB/T GB/T 33014.2-2016 ", which is equivalent to the former in contents to avoid duplication of provisions on same content and incomplete unification with the original international standard; ——GB/T 33014.2-2016 is added in “Normative references”; ——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 (Table E.1 in the original international standard) are changed to L1, L2, etc., and I, II, III, etc. are understood as statuses I, II, III, etc.; The following editorial change has been made in this part: ——“Foreword” and “Introduction” in the original international standard are deleted; ——Annexes C and D in the original international standard are deleted, and Annex E in the original international standard is changed to Annex C in this standard. 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 4: Bulk current injection (BCI) 1 Scope This part of GB/T 33014 specifies bulk current injection (BCI) test methods for determining the immunity of electronic components to electrical/electronic disturbances from narrowband radiated electromagnetic energy. 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 engines, diesel engine, 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 (including any amendments) applies. GB/T 33014.1 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 1: General (GB/T 33014.1-2016, ISO 11452-1: 2005, MOD) 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 (ISO 11452-2: 2004, MOD) 3 Terms and definitions For the purpose of this document, the terms and definitions given in GB/T 33014.1 apply. 4 Test conditions The frequency range of the BCL test method is a direct function of the current probe characteristics, ranging from 1 MHz to 400 MHz. More than one type of current probe may be required. The users shall specify the test severity level(s) over the frequency range. Suggested test levels are included in Annex E. Standard test conditions shall be according to GB/T 33014.1 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 test shall be performed in a shielded enclosure. 6 Test apparatus 6.1 General Bulk current injection (BCI) is a method of carrying out immunity tests by inducing disturbance signals directly into the wiring harness by means of a current injection probe. The injection probe is a current transformer through which the wiring harness of the DUT are passed. Immunity tests are carried out by varying the test severity level and the frequency of induced disturbance. 6.2 Instrumentation 6.2.1 Current injection probe or set of probes, capable of operating over the entire test frequency required to couple the test equipment to the DUT. The probe(s) shall be capable of withstanding a continuous input power over the test frequency range regardless of the system loading 6.2.2 Current measurement probe (s): capable of operating over the entire test frequency range. 6.2.3 Artificial network(s) (AN): see Sub-clause 7.2. 6.2.4 RF generator, with internal or external modulation capabilities. 6.2.5 Power amplifier; 6.2.6 Power meter (or equivalent measuring instrument): for measuring forward power and reflected power. 6.2.7 Current measuring equipment. 6.3 Stimulation and monitoring of DUT The DUT shall be operated by actuators that have a minimum effect on the electromagnetic characteristics, e.g. plastic blocks on the push-buttons, pneumatic actuators with plastic tubes. Connections to equipment monitoring electromagnetic interference reactions of the DUT may be accomplished by using fibre-optics, or high-resistance leads. Other types of lead may be used but require extreme care to minimize interactions. The orientation, length and location of such leads shall be carefully documented to ensure repeatability of test results. Any electrical connection of monitoring equipment to the DUT may cause malfunctions of the DUT. Extreme care shall be taken to avoid such effect. 7 Test set-up 7.1 Ground plane The ground plane shall be made of 0.5 mm thick (minimum) copper, brass or galvanized steel. The minimum width of the ground plane shall be 1,000 mm. The minimum length of the ground plane shall be 2,000 mm, or the length of the entire underneath of the equipment plus 200mm, whichever is the larger. The height of the ground plane (test bench) shall be (900±100) mm above the floor. The ground plane shall be electrically overlapped with the shielded enclosure, the distance between grounding copper strips shall not be more than 300 mm, and the DC resistance shall not exceed 2.5 mΩ. 7.2 Power supply and AN The power supply lead of each DUT 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 Figures 1 and 2 need to be adapted accordingly. The power supply shall be applied to the DUT via a 5 μH/50 Ω AN (see Annex A of GB/T 33014.2-2016). 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 one for the power return line (see Annex B of GB/T 33014.2-2016). ——For a locally grounded DUT (vehicle power return line 200 mm or shorter): one AN is required for the positive supply (see Annex B of GB/T 33014.2-2016). The AN(s) shall be directly mounted 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 DUT shall be placed on an insulating support (εr≤1.4) at a position (50±5) mm above the ground plane. The case of the DUT shall not be grounded to the ground plane unless it it intended to simulate the actual vehicle configuration. The face of the DUT shall be located at least 100mm from the edge of the ground plane. There should be a distance at least 500mm between the DUT and any metal part such as the walls of the shielded enclosure, with the exception of the ground plane on which the DUT is placed. 7.4 Location of test harness The total length of the test harness between the DUT and the load simulator (or the RF boundary) shall be (1,000±10) mm, unless otherwise specified in the test plan. The wiring type is determined by the actual system application and requirement. The test harness shall be placed on an insulation support at a position (50±5) mm above the grounding plate. The test harness should be straight over its whole length and of fixed (position and number of wires) composition. It should pass through the current injection and current measurement probes. The length of the wires in the simulator should be short by comparison with the length of the wiring harness. The wires within the simulator should be anchored. 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. Alternatively, the load simulator may be located adjacent to the ground plane (with the case of the load simulator bonded to the ground plane) or outside of the test chamber, provided the test harness from the DUT passes through an RF bounded to the ground plane. When the load simulator is located on the ground plane, the d. c. power supply lines of the load simulator shall be connected through the AN(s).
Contents of GB/T 33014.4-2016
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Test conditions 5 Test location 6 Test apparatus 7 Test set-up 8 Test methods Annex A (Normative) Current injection probe calibration Annex B (Normative) Test set-up transfer impedance Annex C (Informative) Function performance status classification (FPSC)
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Keywords:
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