▍What is CB?
IECEE CB is the first genuine international system for mutual recognition of electrical equipment safety test reports. NCB (National Certification Body) reaches a multilateral agreement, which enables manufacturer to obtain accreditation from other member countries under CB scheme on the basis of acquiring one of the NCB certifications.
CB Certification is a formal CB scheme document issued by authorized NCB, which is to inform other NCB that the tested product samples conform to present requirement. CB certification shall not be used in advertisement, while it permits to considering as reference document. As a standardized report, CB report list relevant requirements from IEC standard item by item. CB report not only provides results of all required testing, measurement, verification, inspection and assessment with clearness and non-ambiguity, but also includes photos, circuit diagram, pictures and product description. According to the rule of CB scheme, CB report will not take effect until it presents with CB certification together.
▍Function of CB Certification
1.Directly recognized or approval by other countries
With CB test certificate and CB test report, your products can be exported to some countries directly.
2.Convert to other countries certification
When an enterprise is accredited with CB Certification from one of the NCB, it can apply for certifications in other countries directly. Only by conducting report and certification verification(including difference test between countries ) and small quantity of samples( if necessary). It is unnecessary to repeat testing by other countries
Advantage: CB certification can easily change to counterpart of other countries, which will save the cost and lead time for customers.
3.Ensure the product safety
When an enterprise, accredited with CB Certification, applying for certifications in other countries, all or most CB test result would be accepted. Therefore, no or few samples would be required for testing, meanwhile it saves time and money. More importantly, products passed CB testing can greatly increase the chance to pass national difference test in other countries.
▍Process of CB scheme
▍Battery CB scheme testing item
S/N |
Lithium system |
Nickel system |
1 |
Continuous charge |
Low rate charging |
2 |
Moulded case stress |
Vibration |
3 |
External short circuit (Cell) |
Moulded case stress |
4 |
External short circuit (Battery) |
Temperature cycling |
5 |
Free fall |
Incorrect Installation |
6 |
Thermal abuse |
External short circuit |
7 |
Crush |
Free fall |
8 |
Overcharge |
Mechanical shock |
9 |
Forced Discharge |
Thermal abuse |
10 |
Transport |
Crush |
11 |
Forced Internal Short |
Low pressure |
12 |
—— |
Overcharge |
13 |
—— |
Forced discharg |
▍MCM Advantages on CB Certification
● International Qualification: MCM is the first exterior authorized CBTL with IEC 62133 standard by TUV RH in mainland China.
● Certification and testing capability: MCM is among the first patch of third party testing and certification bodies for IEC62133 standards, which has finished more than 70,000 battery IEC62133 testing and CB reports for global customers.
● Technical support: MCM processes more than 15 technical staffs specialize in testing of IEC 62133 standard. MCM provides customers with comprehensive, accurate, closed loop type of technical support and leading-edge information services.