ECE R100.03

Compliance Scope

Approval procedures under ece r100.03 involve subjecting the traction battery to vibration, thermal cycling, fire resistance and mechanical impact tests. These protocols verify that the system remains safe under normal and accident conditions.

Thermal Safety

Specific sections of ece r100.03 require the battery to prevent the spread of a single cell fire to the rest of the pack. Thermal propagation testing is a central part of this version of the regulation. The pack must demonstrate that it can contain an internal explosion or vent gases in a direction that does not harm the vehicle occupants.

Testing involves inducing a thermal runaway event in one cell using a heater or a needle.

Approval Process

National authorities or designated technical services conduct the audits and physical tests. A successful ece r100.03 certification allows a manufacturer to sell the vehicle model across all regions recognizing the standard.