sch.1-sec.112Operation and performance of warning lights

sch.1-sec.112 Operation and performance of warning lights

A warning light attached to the bus, when operating, must emit a flashing yellow light. The warning lights at the same end of the bus must flash alternately between 90 and 180 times each minute. Unless the driver has turned the warning lights off, they must operate automatically when a passenger door on the bus opens and for at least 10, and not more than 20 seconds, after all the doors on the bus have closed. The bus must have an audible or visible signal that tells the driver of the bus in the normal driving position when the warning lights are flashing. The bus must be fitted with a switch that allows the driver of the bus to turn the warning lights off from the normal driving position. A warning light must have— an effective lit lens area of at least 60cm 2 ; and a luminous intensity (in candela) of at least the values mentioned in the following table when measured at the angles mentioned in the table. Vertical angle from centre of light Horizontal angle from centre of light -30° -20° -10° -5° 0° 5° 10° 20° 30° 10° 50 80 50 5 ° 180 320 350 450 350 320 180 0 ° 75 450 1000 1250 1500 1250 1000 450 75 -5 ° 40 270 450 570 600 570 450 270 40 -10 ° 75 75 75 For the purposes of subsection (6) (b) , the luminous intensity of a light is to be measured in accordance with the test method mentioned in third edition ADR 6. s 112 ins 2026 SL No. 4 s 47 (sch.1-sec.112-ssec.1) A warning light attached to the bus, when operating, must emit a flashing yellow light. (sch.1-sec.112-ssec.2) The warning lights at the same end of the bus must flash alternately between 90 and 180 times each minute. (sch.1-sec.112-ssec.3) Unless the driver has turned the warning lights off, they must operate automatically when a passenger door on the bus opens and for at least 10, and not more than 20 seconds, after all the doors on the bus have closed. (sch.1-sec.112-ssec.4) The bus must have an audible or visible signal that tells the driver of the bus in the normal driving position when the warning lights are flashing. (sch.1-sec.112-ssec.5) The bus must be fitted with a switch that allows the driver of the bus to turn the warning lights off from the normal driving position. (sch.1-sec.112-ssec.6) A warning light must have— an effective lit lens area of at least 60cm 2 ; and a luminous intensity (in candela) of at least the values mentioned in the following table when measured at the angles mentioned in the table. Vertical angle from centre of light Horizontal angle from centre of light -30° -20° -10° -5° 0° 5° 10° 20° 30° 10° 50 80 50 5 ° 180 320 350 450 350 320 180 0 ° 75 450 1000 1250 1500 1250 1000 450 75 -5 ° 40 270 450 570 600 570 450 270 40 -10 ° 75 75 75 (sch.1-sec.112-ssec.7) For the purposes of subsection (6) (b) , the luminous intensity of a light is to be measured in accordance with the test method mentioned in third edition ADR 6.