Wisdom
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EMC Test System For Civil Products
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- Electrostatic Discharge Immunity
- Radiated, radio-frequency,electromagnetic field immunity
- Electrical Fast Transient Burst Immunity
- Surge immunity
- Immunity To Conducted Disturbance Induced by Radio Frequency Field
- Power Frequency Magnetic Field Immunity
- Voltage dips, short interruptions and voltage variations immunity
- Harmonics and interharmonics including mains signalling at AC power port, low frequency immunity
- Voltage Fluctuation Immunity Test
- Common mode disturbances in the frequency range 0 Hz to 150 kHz Immunity
- Ripple on DC input power port immunity
- Three-phase Voltage Unbalance Immunity Test
- Power Frequency Variation Immunity Test
- Oscillatory Wave Immunity Test
- Damped Oscillatory Magnetic Field Immunity Test
- Differential mode disturbances immunity test
- DC power input port voltage dip, short interruption and voltage variations test
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Automotive Electronic EMC Test System
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- Electrostatic Discharge Immunity
- Electrical Transient Conducted Immunity
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Anechoic Chamber Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Transverse Wave (TEM) Cell Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-large Current injection (BCI) method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Stripline Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-direct Injection Of Radio Frequency (RF) Power
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Magnetic Field Immunity Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Portable Transmitter Simulation Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Conduction Immunity Method For Extended Audio Range
- High Voltage Electrical Performance ISO 21498-2 Test System
- High Voltage Transient Conducted Immunity (ISO 7637-4)
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- CE101(25Hz ~ 10kHz power line conduction emission)
- CE102(10kHz ~ 10MHz power line conduction emission)
- CE106(10kHz ~ 40GHz antenna port conducted emission)
- CE107 (Power Line Spike (Time Domain) Conducted Emission)
- RE101(25Hz ~ 100kHz magnetic field radiation emission)
- RE102(10kHz ~ 18GHz electric field radiation emission)
- RE103(10kHz ~ 40GHz antenna harmonic and spurious output radiated emission)
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- CS101(25Hz ~ 150kHz power line conduction sensitivity)
- CS102(25Hz ~ 50kHz ground wire conduction sensitivity)
- CS103(15kHz ~ 10GHz Antenna Port Intermodulation Conducted Sensitivity)
- CS104(25Hz ~ 20GHz antenna port unwanted signal suppression conduction sensitivity)
- CS105(25Hz ~ 20GHz antenna port intermodulation conduction sensitivity)
- CS106 (Power Line Spike Signal Conduction Sensitivity)
- CS109(50Hz ~ 100kHz shell current conduction sensitivity)
- CS112 (Electrostatic Discharge Sensitivity)
- CS114(4kHz ~ 400MHz cable bundle injection conduction sensitivity)
- CS115 (Conduction sensitivity of cable bundle injection pulse excitation)
- CS116(10kHz to 100MHz Cable and Power Line Damped Sinusoidal Transient Conduction Sensitivity)
- RS101(25Hz ~ 100kHz magnetic field radiation sensitivity)
- RS103(10kHz ~ 40GHz electric field radiation sensitivity)
- RS105 (Transient Electromagnetic Field Radiated Susceptibility)
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EMC Test System For Civil Products
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- Electrostatic Discharge Immunity
- Radiated, radio-frequency,electromagnetic field immunity
- Electrical Fast Transient Burst Immunity
- Surge immunity
- Immunity To Conducted Disturbance Induced by Radio Frequency Field
- Power Frequency Magnetic Field Immunity
- Voltage dips, short interruptions and voltage variations immunity
- Harmonics and interharmonics including mains signalling at AC power port, low frequency immunity
- Voltage Fluctuation Immunity Test
- Common mode disturbances in the frequency range 0 Hz to 150 kHz Immunity
- Ripple on DC input power port immunity
- Three-phase Voltage Unbalance Immunity Test
- Power Frequency Variation Immunity Test
- Oscillatory Wave Immunity Test
- Damped Oscillatory Magnetic Field Immunity Test
- Differential mode disturbances immunity test
- DC power input port voltage dip, short interruption and voltage variations test
-
Automotive Electronic EMC Test System
-
- Electrostatic Discharge Immunity
- Electrical Transient Conducted Immunity
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Anechoic Chamber Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Transverse Wave (TEM) Cell Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-large Current injection (BCI) method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Stripline Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-direct Injection Of Radio Frequency (RF) Power
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Magnetic Field Immunity Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Portable Transmitter Simulation Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Conduction Immunity Method For Extended Audio Range
- High Voltage Electrical Performance ISO 21498-2 Test System
- High Voltage Transient Conducted Immunity (ISO 7637-4)
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- CE101(25Hz ~ 10kHz power line conduction emission)
- CE102(10kHz ~ 10MHz power line conduction emission)
- CE106(10kHz ~ 40GHz antenna port conducted emission)
- CE107 (Power Line Spike (Time Domain) Conducted Emission)
- RE101(25Hz ~ 100kHz magnetic field radiation emission)
- RE102(10kHz ~ 18GHz electric field radiation emission)
- RE103(10kHz ~ 40GHz antenna harmonic and spurious output radiated emission)
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- CS101(25Hz ~ 150kHz power line conduction sensitivity)
- CS102(25Hz ~ 50kHz ground wire conduction sensitivity)
- CS103(15kHz ~ 10GHz Antenna Port Intermodulation Conducted Sensitivity)
- CS104(25Hz ~ 20GHz antenna port unwanted signal suppression conduction sensitivity)
- CS105(25Hz ~ 20GHz antenna port intermodulation conduction sensitivity)
- CS106 (Power Line Spike Signal Conduction Sensitivity)
- CS109(50Hz ~ 100kHz shell current conduction sensitivity)
- CS112 (Electrostatic Discharge Sensitivity)
- CS114(4kHz ~ 400MHz cable bundle injection conduction sensitivity)
- CS115 (Conduction sensitivity of cable bundle injection pulse excitation)
- CS116(10kHz to 100MHz Cable and Power Line Damped Sinusoidal Transient Conduction Sensitivity)
- RS101(25Hz ~ 100kHz magnetic field radiation sensitivity)
- RS103(10kHz ~ 40GHz electric field radiation sensitivity)
- RS105 (Transient Electromagnetic Field Radiated Susceptibility)
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Technical column
CASES
Differences between GB/T 21437.2 Standard 2008 and 2021
Release time:
2022-12-15 00:00
Source:
GB/T 21437.2-2021 "Road vehicle electrical/electronic components on conduction and coupling caused electrical disturbance test method Part 2: Electrical Transient Conduction Emission and Immunity along the Power Line was officially implemented in 2022-07-01 to replace GB/T 21437.2-2008 edition, which is equivalent to the international standard ISO 7637-2:2011. This paper mainly analyzes the differences between the old and new versions, and further master the EMC testing methods of automobile parts. (Note: The content deleted in red is the content added in the new version, while the content added in green is the content)
1. Supply voltage difference
Power supply voltage 12V system (V)24V system (V)
UA 13.5±0.527±1
UB 12±0.224±0.4
UB test supply voltage has been deleted in the new version, only UA test supply voltage is retained.
Ii. Differences in test items and test parameters
1. Voltage transient emission
① Fast pulse
DUT has no internal switch
DUT has internal switch (new)
The new voltage transient emission fast pulse test project added DUT with internal switch test.
② Slow pulse
2021 version of slow pulse test layout
Slow pulse test layout 2008 edition
The new version of the slow pulse test layout, the distance between the artificial power network and the switch is changed from 60mm to less than 500mm.
2. Transient immunity
① Pulse 1
2021 version Pulse 1 parameter
2008 version pulse 1 parameter
The new version of standard pulse 1 test parameters US voltage and R resistance of 24V system have been changed
② Pulse 2a
2008 version pulse 2a parameters
2021 version pulse 2a parameters
The new version of standard pulse 2a test parameter US voltage has been changed.
③ Pulse 2b
2021 version pulse 2b parameter
2008 version pulse 2b parameter
Pulse 2b is consistent with the old and new standards
④ Pulse 3a
2021 version pulse 3a parameters
2008 version pulse 3a parameters
The new version of standard pulse 3a test parameter US voltage has been changed.
⑤ Pulse 3b
2021 version pulse 3b parameters
2008 version pulse 3b parameters
The new version of standard pulse 3b test parameter US voltage has been changed.
⑥ Delete test items
The test items of Pulse 4, 5a and 5b in the 2008 edition have been deleted in the new version of 2021 standard, and have been reflected in GB/T 28046.2-2019. Readers can refer to the standard if they want to know, and this article will not describe it.
I hope this article can make you more clearly understand the differences between the new and old versions of GB/T 21437.2, which will be helpful in the future test.