Document ID: chunk:federal_register_of_legislation:F2023L01529:body:0:p50
Version: federal_register_of_legislation:F2023L01529
Segment Type: other
Provision Reference: 
Character Range: 139778–142640

safety performance of the REESS under contact loads which may occur during vehicle crash situation.

       2. Installations

       2.1. This test shall be conducted with either the complete REESS or with a related REESS subsystem(s) including the cells and their electrical connections. If the manufacturer chooses to test with related subsystem(s), the manufacturer shall demonstrate that the test result can reasonably represent the performance of the complete REESS with respect to its safety performance under the same conditions. If the electronic management unit for the REESS is not integrated in the casing enclosing the cells, then the electronic management unit may be omitted from installation on the tested-device if so requested by the manufacturer.

       2.2. The tested-device shall be connected to the test fixture as recommended by the manufacturer.

       3. Procedures

       3.1. General test conditions

       The following condition and requirements shall apply to the test:

       (a) The test shall be conducted at an ambient temperature of 20 ± 10 °C;

           (b) At the beginning of the test, the SOC shall be adjusted to a value in the upper 50 per cent of the normal operating SOC range;

           (c) At the beginning of the test, all internal and external protection devices which would affect the function of the tested-device and which are relevant to the outcome of the test shall be operational.

       3.2.  Crush test

       3.2.1.  Crush force

       The tested-device shall be crushed between a resistance and a crush plate as described in Figure 1 with a force of at least 100 kN, but not exceeding 105 kN, unless otherwise specified in accordance with paragraph 6.4.2. of this Regulation, with an onset time less than 3 minutes and a hold time of at least 100 ms but not exceeding 10 s.

       Figure 1

        A higher crush force, a longer onset time, a longer hold time, or a combination of these, may be applied at the request of the manufacturer.

       The application of the force shall be decided by the manufacturer together with the Technical Service having consideration to the direction of travel of the REESS relative to its installation in the vehicle. The application force being applied horizontally and perpendicular to the direction of travel of the REESS.

        The test shall end with an observation period of 1 h at the ambient temperature conditions of the test environment.

Annex 8E

Fire resistance

       1. Purpose

       The purpose of this test is to verify the resistance of the REESS, against exposure to fire from outside of the vehicle due to e.g. a fuel spill from a vehicle (either the vehicle itself or a nearby vehicle). This situation should leave the driver and passengers with enough time to evacuate.

       2. Installations

       2.1. This test shall