As the first batch of mandatory national standards in the field of electric vehicles in China, many industry-leading car companies, bus manufacturers, battery manufacturers, and testing centers participated in the drafting of standards. Based on China's original recommended national standards, it is fully in line with the United Nations Global Technical Regulations on Electric Vehicle Safety (UN GTR 20), which was led by China. Compared with the old national standard, it further improves and optimizes the safety technical requirements for electric vehicles and power battery products.

"Electric vehicles safety requirements" stipulates the safety requirements and test methods for electric vehicles. It is applicable to electric vehicles with a maximum operating voltage of on-board drive system of Class B. It is not suitable for road vehicles that are continuously connected to the grid during driving. The new standard mandates insulation resistance monitoring, adds REESS thermal event alarm requirements, optimizes insulation resistance measurement methods, and adds verification tests for insulation monitoring functions. This standard will become one of the important basic standards for the safety performance testing of electric vehicles in China and the mandatory technical basis for the mandatory inspection of new electric vehicle stereotypes and the inspection of imported motor vehicles.

"Electric vehicles traction battery safety requirements" applies to rechargeable energy storage devices such as lithium-ion batteries and nickel-metal hydride batteries for electric vehicles. Only the most basic safety requirements for power battery cells, battery packs or systems for electric vehicles are considered to provide personal protection, not involving production, transportation, maintenance and recycling safety, nor performance and functional characteristics. In terms of the thermal safety of the battery system, the new standard specifically adds the thermal diffusion test of the battery system: after the battery cell thermal runaway occurs, the battery system will not fire or explode within 5 minutes, and a safe escape time is reserved for the occupants.

"Electric buses safety requiements" apply to M2 and M3 electric buses, including pure electric buses and hybrid buses, but not to fuel cell electric buses. The new standard improves the special waterproof and dustproof, fireproof, rechargeable energy storage system, charging and other safety requirements and test methods of electric passenger cars, and adds the thermal runaway test requirements for the smallest battery management unit.

Newly-applied model approvals will be implemented from the date of implementation of the standard, and models that have received type approval will be implemented from the 13th month of implementation of the standard.

NEW STANDARD TEST PROJECT ANALYSIS
“Electric vehicles traction battery safety requirements" as an example:

SERVICES PROVIDED BY ATIC
Inspection and pre-test of national standards for electric vehicles and power batteries
Preparation of a full set of application materials
Factory audit counseling, accompanied throughout
Certification bodies work closely together without barriers to communication

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ATIC is a young technical service company from China, established in 2015. ATIC is committed to integrate domestic and international regulations, testing and certification resources with a global perspective in the context of globalization, and establish a new, specialized regulation research, testing and certification platform. With innovative Digital Reporting System (DRS), Customer Service Platform (CSP) and self-developed Global Vehicle Regulation Database (GVRD), ATIC’s compliance service covers more than 54 countries/regions globally, testing and certification service covers more than 30 countries/regions worldwide. ATIC serve more than 3,300 manufactures each year.