Wireless Communication
EU RED Network Security Standard EN 18031
Wireless and communication detection
Mobile communication product certification
Bluetooth BQB Product Certification
FM/AM Product Certification
WiFi Product Certification
Wireless charging product certification
Interphone product certification
Base station certification
SAR testing
Receiver Product Certification
5G NR Product Certification
UWB Product Certification
Internet of Things authentication
Electromagnetic compatibility
Automotive Electronics EMC Testing
EMC rectification
EMC
Automotive Electronics
Electrical performance testing
EMS testing - radiation anti-interference testing system (including radar waves)
EMS Testing - Electrostatic Discharge
EMS Test - Transient Conducted Immunity Test
EMS Testing - Portable Transmitter Immunity
EMS Test - High Current Injection (BCI) Test
EMS test - low-frequency magnetic field anti-interference test
EMI Testing - Transient Conducted Emissions Testing System
EMI testing - low-frequency magnetic field emission
EMI Test - Radiation Emission Test
EMI Test - Conducted Emissions Test
Automotive Electronic Testing
Automotive Parts Inspection
Automotive ELV&VOC
Reliability testing
Temperature shock test
Vibration testing
Instrument panel/instrument panel three comprehensive vibration test
Comprehensive vibration test of door inner panel III
Sunvisor Three Comprehensive Vibration Test
Spoiler Three Comprehensive Vibration Test
Three comprehensive vibration tests of car front and rear bumpers
Three comprehensive vibration tests for lamp housing/lampshade
Comprehensive vibration test of outer circumference three
Automotive metal material testing
Performance testing of automotive lighting fixtures
Rapid temperature change test
Vibration
Common issues with vibration testing
Common issues with fatigue testing
Common issues with high and low temperature testing
Conducted Interference (CE) - Suzhou Lixun Standard
Electromagnetic Radiation Tolerance Test (RS) - Suzhou LCS Standard
Electrical Fast Pulse Withstand Test (EFT) - Suzhou LCS Standard
Voltage flicker test - Suzhou LCS standard
Electronic appliances
Household appliance product testing
Electrical accessory product testing
Household appliance testing
Chemical Testing
Introduction to PFAS Testing
MOSH/MOAH Mineral Oil Testing Service
MOSH/MOAH Mineral Oil Testing and Certification Report Service
Consumer Product Testing Services - WEEE Chapter
Ecological textile testing
Leather Footwear Inspection
Food contact material testing
Testing of toys and baby products
Hazardous substance testing
Electronic Cigarette Testing
Electronic cigarette detection
Reliability testing
Other tests - pencil hardness test
Mechanical testing - Packaging compression test
Climate environment testing - Xenon lamp aging test
Battery Testing
Power storage battery testing and certification
Consumer Electronics Battery Testing and Certification
power battery
Light electric vehicle batteries
Energy storage battery
Portable battery
Battery testing
battery test
Lamp Inspection
Inspection of ship lighting fixtures
COI Index Test for Medical Indoor Lighting
Lamp safety inspection
Luminaire energy efficiency testing
EMC testing of lighting fixtures
Integral Ball Laboratory
Photobiology Experiment
Light distribution test
Lamp aging test
Lamp IP waterproof
Lamp performance testing
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Children's toy testing
Testing standards for toy products
China Certification
China's "national promotion" RoHS certification
China Energy Efficiency Label Certification
China Energy Conservation Certification
China CQC Certification
Tmall JD Quality Inspection Report
China SRRC Certification
Taiwan BSMI certification
Taiwan NCC certification
China CCC Compulsory Certification
Asia Certification
Vietnam certification
KC certification
KUCAS Certification in Kuwait
Singapore PSB certification
Iraq COC Certification
IMDA certification
VCCI Certification in Japan
JATE certification in Japan
PSE certification
BIS certification
Japanese TELEC certification
European Certification
RoHS certification
GOST certification in Russia
Russian EAC certification
Northern Ireland UKNI logo
Electrical ENEC certification
European D-MARK certification
Türkiye BTK certification
TSE certification in Türkiye
CE certification in Türkiye
RED certification
German TUV-SUD certification
CE-ERP certification
REACH certification
German GS certification
EU E-Mark certification
North American Certification
Ecuador VOC certification
Mexico NOM certification
IRAM certification
CPSC Certification in the United States
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ASTM certification
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ETL certification
ul certification
IC certification
Energy Star
FCC Certification in the United States
ASTM certification
Middle East Certification
Israel SII certification
Saudi SABER certification
GCC certification for the seven Gulf countries
Iran COI certification
Qatar COC Certification
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Saudi EER Energy Efficiency Certification
Saudi SABER certification
Algeria PCA certification
PVOC certification
Australia Certification
New Zealand IC-F testing
VEET certification
LCP certification
GEMS certification
RCM certification
C-Tick certification
SAA certification
Africa Certification
Gabon COC certification
Algeria COC certification
Ethiopian VOC and COC certification
Mauritius VOC certification
Ghana COC certification
COC certification in Burundi
Zambia COC certification
Botswana COC Certification
Uganda PVOC certification
SABS certification in South Africa
South African LOA certification
Zimbabwe CBCA Certification
Nigeria SONCAP certification
Kenya PVOC certification
African COC certification
Other certifications
WEEE
Bluetooth BQB certification
IECEE registration
MHRA registration in the UK
TRAINING
Management system training
Laboratory technical training
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Laboratory decoration construction
Wireless Communication
Electromagnetic compatibility
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China Certification
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TRAINING
Wireless Communication
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Chemical Testing
Electronic Cigarette Testing
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Battery Testing
Lamp Inspection
Children's toy testing
China Certification
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Australia Certification
Africa Certification
Other certifications
TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
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North American Certification
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Australia Certification
Africa Certification
Other certifications
TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
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North American Certification
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Australia Certification
Africa Certification
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TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
European Certification
North American Certification
Middle East Certification
Australia Certification
Africa Certification
Other certifications
TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
European Certification
North American Certification
Middle East Certification
Australia Certification
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TRAINING
Solutions
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Automotive interior and exterior trim - Environmental testing
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Automotive interior and exterior decorations (electronic and electrical components) - IP protection
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Automotive electronic and electrical components - Electrical performance
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Automotive interior and exterior trims - Mechanical performance testing
Contact Us
National 24-hour service hotline
400-116-2629
Group Headquarters
E-mail: webmaster@lcs-cert.com
Address: Shenzhen City, Baoan District, Shajing Street, Nga side of the school of Wei Juji Industrial Park, Building A 1 ~ 2 floor, Building C 3 floor
Component anomaly testing
After experiencing a single anomaly or malfunction, the equipment shall not present any danger in the standard sense
Component anomaly testing is a critical test to evaluate the safety and reliability of equipment under a single fault condition, ensuring that the equipment does not pose a danger to users, the environment, or other equipment in the event of an anomaly. The following are the key elements and protective measures for component abnormality testing:
1. Test objectives
Safety: Ensure that the equipment does not pose risks such as fire, electric shock, explosion, etc. under a single fault condition.
Reliability: Ensure that the equipment can still operate partially or completely normally in abnormal situations, or shut down safely.
Compliant with standards: Meet relevant safety standards and regulatory requirements.
2. Test type
Short circuit test: Simulate component short circuits and check whether the equipment is overcurrent protected or safely shut down.
Open circuit test: Simulate component open circuit, check whether the equipment can detect faults and take safety measures.
Overvoltage test: Simulate high input voltage and check if the device has overvoltage protection function.
Overcurrent test: Simulate abnormal current and check if the equipment has overcurrent protection function.
Overheating test: Simulate component overheating and check if the equipment has temperature protection function.
Reverse voltage test: Simulate power supply reverse connection and check if the equipment has reverse connection protection function.
3. Protective design
Redundancy design: Key circuits or components are designed with redundancy to ensure that a single fault will not cause system failure.
Protection circuit:
Overvoltage protection (such as TVS diodes, voltage regulators).
Overcurrent protection (such as fuses, PTC self recovery fuses).
Overheating protection (such as temperature sensors, thermal fuses).
Fault detection: Design a fault detection mechanism to promptly identify anomalies and take safety measures (such as power outages and alarms).
Isolation design: Isolation design (such as optocoupler and transformer isolation) is used between high-risk circuits and low-risk circuits.
4. Testing equipment
Programmable power supply: Simulate abnormal voltage or current conditions.
Electronic load: Simulate abnormal load.
Temperature tester: monitors temperature changes of components.
Data logger: records parameters such as voltage, current, temperature, etc. during the testing process.
Fault injection equipment: Simulate component short circuits, open circuits, and other faults.
5. Testing process
Preparation: Determine the test type, fault conditions, and test parameters.
Fault injection: Simulate the abnormality of a single component (such as short circuit, open circuit, overvoltage, etc.).
Monitoring: Record the response of equipment under abnormal conditions (such as voltage, current, temperature, status).
Inspection: Evaluate whether the equipment meets safety requirements (such as no danger, automatic protection, safe shutdown).
Analysis: Optimize design or improve protective measures based on test results.
6. Improvement measures
Add protection circuit: Add or optimize protection circuit based on test results.
Optimization design: Improve circuit design to reduce the impact of a single fault.
Component selection: Choose components with higher reliability or higher rated values.
Software protection: Fault detection and protection (such as overvoltage shutdown and overcurrent limitation) are implemented through software.
7. Common standards
IEC 61000-4: Electromagnetic compatibility testing standard, including abnormal condition testing.
UL 60950-1: Information Technology Equipment Safety Standard.
IEC 62368-1: Safety standards for audio and video, information technology, and communication equipment.
GB 4943.1: China Information Technology Equipment Security Standards.
8. Precautions
Single fault principle: Simulate only one component abnormality during each test to ensure the pertinence of the test results.
Hazard assessment: During the testing process, it is necessary to evaluate whether the equipment may cause hazards such as fire, electric shock, and explosion.
User safety: Ensure that the device does not cause harm to the user under abnormal conditions.
Environmental safety: Ensure that equipment does not cause pollution or damage to the environment under abnormal conditions.
By conducting abnormal component testing, the safety and reliability of the equipment can be effectively improved, ensuring that it will not pose a standard danger under a single fault condition.
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Testing/year
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