UL1973 CSDS PROPOSAL IN MAY,
CE,

▍What is PSE Certification?

PSE (Product Safety of Electrical Appliance & Material) is a mandatory certification system in Japan. It is also called ‘Compliance Inspection’ which it is a mandatory market access system for electrical appliance. PSE certification is composed of two parts: EMC and product safety and it is also an important regulation of Japan safety law for electrical appliance.

▍Certification Standard for lithium batteries

Interpretation for METI Ordinance for Technical Requirements(H25.07.01)， Appendix 9，Lithium ion secondary batteries

▍Why MCM?

● Qualified facilities: MCM is equipped with qualified facilities which can be up to the whole PSE testing standards and conduct tests including forced internal short circuit etc. It enables us to provide different customized testing reports in the format of JET, TUVRH, and MCM etc.

● Technical support: MCM has a professional team of 11 technical engineers specialized in PSE testing standards and regulations, and is able to offer the latest PSE regulations and news to clients in a precise, comprehensive and prompt way.

● Diversified service: MCM can issue reports in English or Japanese to meet clients’ need. So far, MCM has completed over 5000 PSE projects for clients in total.

On May 21, 2021, UL official website released the latest proposal content of UL1973 battery standard for stationary, vehicle auxiliary power supply and light rail (LER) applications. The deadline for comments is July 5, 2021. The following is the 35 proposals:
1. Testing of Modules during the short circuit test.
2. Editorial corrections.
3. Addition of an exception to the General Performance Section for the test time for lithium ion cells or batteries.
4. Revision to Table 12.1, Note (d) for loss of primary control.
5. Addition of an Exception for the Drop Impact Test SOC.
6. Addition of an exception for outdoor use only in the Single Cell Failure Design Tolerance test.
7. Moving all lithium cell requirements into UL 1973.
8. Addition of requirements for repurposing batteries.
9. Clarification of lead acid battery requirements.
10. Addition of Vehicle Auxiliary Power System Requirements.