§ 815. Temperature and Durability Test Requirements.

Flashing warning lamps shall meet the following additional requirements, with all tests conducted on the same sample in the order shown:

(a) High Temperature Test. The sample shall be mounted in normal operating position in a circulating air cabinet for 6 hours at 49 + 3^oC (120 + 5^oF). The device shall be off during the first hour and shall operate continuously for the next 5 hours with the required voltage applied at the device terminals.

(b) Low Temperature Test. The sample shall be mounted in normal operating position in a circulating air cabinet for 6 hours at -32 + 3^oC (-25 + 5^oF). The device shall be turned on at the end of the sixth hour and operated for 3 minutes with the required test voltage applied at the device terminals before measuring the flash rate.

(c) Durability Test. The sample shall be operated continuously for 200 hours at room temperature in cycles consisting of 50 minutes on and 10 minutes off at the required test voltage.

(d) Required Performance. The device shall operate satisfactorily during the tests specified in preceding subdivisions (a), (b), and (c) with no evidence of malfunction. The flash rate shall remain within the required rate for the type of lamp except that the flash rate for lamps used in the low temperature test shall not be less than 50 flashes per minute. The voltage at the terminals of the warning lamp assembly shall be not more than 0.50 volt below the input terminal voltage of 12.8 volts for 12 volt units and not more than 1.0 volt below the required input terminal voltage for lamps intended to operate at 24 volts or more with the device operating. Measurements for the low temperature test shall be made 3 minutes after the beginning of the last hour of operation and at the end of the test. Measurements for the high temperature test shall be made at the end of the test. Measurements for the durability test shall be made at 100 hours and at the end of the test.

HISTORY

1. Amendment of subsections (b) and (d) filed 12-17-81; effective thirtieth day thereafter (Register 81, No. 51).

2. Amendment filed 11-25-2002; operative 12-25-2002 (Register 2002, No. 48).

Note

Note: Authority cited: Section 26103, Vehicle Code. Reference: Sections 24012 and 26103, Vehicle Code.