Document ID: chunk:federal_register_of_legislation:F2023L01526:body:0:p66
Version: federal_register_of_legislation:F2023L01526
Segment Type: other
Provision Reference: 
Character Range: 183118–185997

Tested-Device shall be exposed to the even flame directly and entirely by fuel combustion. LPG burner flame shall exceed the horizontal projection of the Tested-Device by at least 20 cm.

       3.4.6. An average temperature of 800 °C shall be reached within 30 seconds and maintained between 800°C and 1,100°C. The Tested-Device shall then be exposed to the frame for 2 minutes.

       3.4.7. After direct exposure to flame the Tested-Device shall be observed until such time as the surface temperature of the Tested-Device has decreased to ambient temperature or has been decreasing for a minimum of 3 hours.

Annex 9E - Appendix 1

Dimension and technical data of firebricks

Fire resistance:  (Seger-Kegel) SK 30

Al2O3 content:  30 - 33 per cent

Open porosity (Po): 20 - 22 per cent vol.

Density:   1,900 - 2,000 kg/m3

Effective holed area: 44.18 per cent

Annex 9F

External short circuit protection

       1. Purpose

       The purpose of this test is to verify the performance of the short circuit protection to prevent the REESS from any further related severe events caused by short circuit current.

       2. Installations

       This test shall be conducted either with a complete vehicle or with the complete REESS or with the REESS subsystem(s). If the manufacturer chooses to test with REESS subsystem(s), the Tested-Device shall be able to deliver the nominal voltage of the complete REESS and 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.

       3. Procedures

       3.1. General test conditions

       The following condition shall apply to the test:

           (a) The test shall be conducted at a ambient temperature of 20 ± 10 °C or at higher temperature if requested by the manufacturer;

           (b) At the beginning of the test, the SOC shall be adjusted in accordance with Annex 9, Appendix 2;

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

           (d) For testing with a complete vehicle, a breakout harness is connected to the manufacturer specified location and vehicle protection systems relevant to the outcome of the test shall be operational.

       3.2. Short circuit

       At the start of the test all relevant main contactors for charging and discharging shall be closed to represent the active driving possible mode as well as the mode to enable external charging. If this cannot be completed in a single