Document ID: chunk:federal_register_of_legislation:F2023L01529:body:0:p57
Version: federal_register_of_legislation:F2023L01529
Segment Type: other
Provision Reference: 
Character Range: 158086–161097

and where the REESS will remain functional without a cooling function system being operational, the cooling system shall be deactivated for the test.

       2.3. The temperature of the tested-device shall be continuously measured inside the casing in the proximity of the cells during the test in order to monitor the changes of the temperature. The onboard sensor if existing may be used. The manufacturer and Technical Service shall agree on the location of the temperature sensor(s) used.

       3. Procedures

       3.1. At the beginning of the test, all protection devices which affect the function of the tested-device and are relevant to the outcome of the test shall be operational, except for any system deactivation implemented in accordance with paragraph 2.2. above.

       3.2. During the test, the tested-device shall be continuously charged and discharged with a steady current that will increase the temperature of cells as rapidly as possible within the range of normal operation as defined by the manufacturer.

       3.3. The tested-device shall be placed in a convective oven or climatic chamber. The temperature of the chamber or oven shall be gradually increased until it reaches the temperature determined in accordance with paragraph 3.3.1. or 3.3.2. below as applicable, and then maintained at a temperature that is equal to or higher than this, until the end of the test.

       3.3.1. Where the REESS is equipped with protective measures against internal overheating, the temperature shall be increased to the temperature defined by the manufacturer as being the operational temperature threshold for such protective measures, to insure that the temperature of the tested-device will increase as specified in paragraph 3.2. above.

       3.3.2. Where the REESS is not equipped with any specific measures against internal over-heating, the temperature shall be increased to the maximum operational temperature specified by the manufacturer.

       3.4. The end of test: The test will end when one of the followings is observed:

           (a) The tested-device inhibits and/or limits the charge and/or discharge to prevent the temperature increase;

           (b) The temperature of the tested-device is stabilised, which means that the temperature varies by a gradient of less than 4 °C through 2 hours;

           (c) Any failure of the acceptance criteria prescribed in paragraph 6.9.2.1. of the Regulation.

[*] Former titles of the Agreement:
    Agreement Concerning the Adoption of Uniform Conditions of Approval and Reciprocal Recognition of Approval for Motor Vehicle Equipment and Parts, done at Geneva on 20 March 1958 (original version);
    Agreement concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Equipment and Parts which can be Fitted and/or be Used on Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these Prescriptions, done at Geneva on 5 October 1995 (Revision 2).
[1]