ISO 6469-1:2019 pdf free.Electrically propelled road vehicles -Safety specifications -Rechargeable energy storage system (RESS).
4 General requirements
4.1 General electrical requirements
If not otherwise specified in this document, the voltage class B RESS shall fulfil the electrical safety requirements in accordance with Iso 6469-3. These electrical safety requirements may be fulfilled for an RESS on the component or vehicle level.The voltage class B RESS or the voltage class B RESS subsystem shall be marked in accordance with ISO 6469-3.
NOTE For marking requirements for a voltage class A RESS or RESS subsystem when integrated into a voltage class B circuit see ISO 6469-3.
4.2 General safety requirements
The following requirements are general safety requirements, which apply when cited.
— The RESS shall not exhibit any evidence of leakage.
— The RESS shall not exhibit continuous emission of flames for more than 1 s or explosion.
— The RESS shall not exhibit any evidence of rupture.
— The voltage class B2 RESS shall maintain an isolation resistance according to 5.4.1.
Compliance shall be tested in accordance with 6.1.6.
5 Technical requirements
5.1 Mechanical requirements
The RESS shall provide the safety performance as specified below under mechanical loads due to vibration and mechanical shock, which an RESS will likely experience during the normal operation of a vehicle over its lifetime. The general safety requirements in accordance with 42 shall be fulfilled. Compliance shall be tested in accordance with 12.2.
5.2 Climatic requirements
5.2.1 Thermal shock cycling
The RESS shall provide the safety performance as specified below under a climatic load due to rapid temperature changes, which an RESS will likely experience during the normal operation of a vehicle.
The general safety requirements in accordance with 42 shall be fulfilled. Compliance shall be tested in accordance with 6.3.1.
5.3 Simulated vehicle accident requirements
5.3.1 VehIcle crash
The RESS shall provide the safety performance at a vehicle crash, which shall comply with 5.3.1.1 and 5.3.1.2. Testing shall be performed at vehicle level or RESS level.
5.3.1.1 Inertial load at a vehicle crash
The RESS shall provide the safety performance under inertial loads caused by an acceleration which can occur at a vehicle crash. The general safety requirements in accordance with 42 shall be fulfilled. Compliance shall be tested in accordance with 6.4.1.1.2 or 6.4.1.2.
5.3.1.2 Contact force at a vehicle crash
The RESS shall provide the safety performance under contact forces which can occur at a vehicle crash. The general safety requirements in accordance with 42 shall be fulfilled.
For an RESS intended to be installed in vehicles with a gross mass exceeding 3,5 t, the requirements are deemed to be fulfilled, if the RESS is Intended to be installed at a position higher than 700 mm above the ground (distance between the ground and the bottom surface of the RESS).
For an RESS intended to be installed in vehicles with a gross mass exceeding 7,5 t the requirements are deemed to be fulfilled, if the RESS is intended to be installed within a longitudinal chassis frame structure of the vehicle.
Compliance shall be tested in accordance with 6.4.1.1.3 or 6.4.1.2.
5.3.2 Immersion into water
The RESS shall provide the safety performance as specified below when it is exposed to water due to water immersion.
NOTE This requirement does not cover incidents in which the primary hazard for persons is caused by the presence of water, e.g. high flooding, flooded underground parking, flooded underpass.
The requirement is fulfilled if the RESS or RESS subsystem meets one of the following conditions:
— The RESS or RESS subsystem shall be tested in accordance with 6.4.2. During the test and during the post-test observation period of 2 h, the RESS or RESS subsystem shall not exhibit any evidence of continuous emission of flames for more than 1 s, or explosion.
— The RESS or RESS subsystem including all connectors, air ducts and connections for cooling attached is water protected. It shall be tested in accordance with IPX7 in ISO 20653 and no occurrence of water is allowed inside the RESS or RESS subsystem after the exposure to water. The test may be conducted with only the housing of an RESS or RESS subsystem and all connectors, air ducts and connections for cooling attached.ISO 6469-1 pdf download.