California Code of Regulations (Last Updated: August 6, 2014) |
Title 13. Motor Vehicles |
Division 2. Department of the California Highway Patrol |
Chapter 2. Lighting Equipment |
Article 16. Reserve Lighting and Outage Indicating Systems |
§ 774. Voltage Requirements for Alternate Circuits.
Latest version.
- When the alternate circuit lamps are connected and the design voltage is applied to the input terminals of the device, voltages at output terminals shall be as follows:(a) Headlamps--Lower Beam Outage Compensated by Upper Beam. Voltage to the upper beam filaments as reserve lower beam headlamps when one-half or more of the lower beam filaments fail shall be not more than 50% nor less than 40% of the design voltage of the upper beam filament.(b) Headlamps--Upper Beam Outage Compensated by Lower Beam. Voltage to the lower beam filaments as reserve upper beam headlamps when one-half or more of the upper beam filaments fail shall be not less than 75% of the design voltage of the lower beam filament.(c) Taillamps--Outage Compensated by Stoplamps. Voltage to the stoplamp filaments as reserve taillamps shall be not more than 50% nor less than 40% of the design voltage of the stoplamp filament.
Note
Note: Authority cited: Section 26103, Vehicle Code. Reference: Sections 24012 and 26103, Vehicle Code.