Conclusion on New Version of GB 4943.1,
GB 4943.1,

▍What is CB Certification？

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 manufacturers to obtain national certification from other member countries under CB scheme on the basis of transferring one of the NCB certificates.

CB certificate is a formal CB scheme document issued by authorized NCB, which is to inform other NCB that the tested product samples conform to present standard requirement.

As a kind of standardized report, CB report lists 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 including 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 certificate together.

▍Why we need CB Certification?

1. Directly recognized or approved by member countries

With CB certificate and CB test report, your products can be exported to some countries directly.

1. Convert to other countries certificates

The CB certificate can be directly converted to the certificate of its member countries, by providing the CB certificate, test report and difference test report (when applicable) without repeating the test, which can shorten the lead time of certification.

1. Ensure the Safety of Product

The CB certification test considers the product’s reasonable use and foreseeable safety when misused. The certified product proves the satisfactory of the safety requirements.

▍Why MCM? 

● Qualification: MCM is the first authorized CBTL of IEC 62133 standard qualification by TUV RH in mainland China.

● Certification and testing capability: MCM is among the first patch of testing and certification third party for IEC62133 standard, and has finished more than 7000 battery IEC62133 testing and CB reports for global clients.

● Technical support: MCM possesses more than 15 technical engineers specialized in testing as per IEC 62133 standard. MCM provides clients with comprehensive, accurate, closed-loop type of technical support and leading-edge information services.

On July 19th 2022, Chinese Ministry of Industry and Information Technology release the latest GB 4943.1-2022 Audio/video, information and communication technology equipment – Part 1: Safety requirement. The new standard will be implemented on August 1st 2023, replacing GB 4943.1-2011 and GB 8898-2011. For products that already certified with GB 4943.1-2011, applicant may refer to the collection of differences between the old and new standard, so as to prepare for update of new standard.
If you need an update of GB 4943.1 certification, you need to conduct supplement test according to your products. You may refer to the chart above to see if your products can meet the requirements of new standard.Equipment containing batteries and their protection circuits:
Requirements for protection circuits, additional safeguards for equipment containing a portable secondary lithium battery, safeguard against risk of burn due to short circuit during carrying.Add requirement of lithium battery equipment safeguard. Add charging safeguard, fireproof enclosure, dropping, charging and discharging function check, circulation, short-circuit safeguard, etc.