Lighting Regulations

Regulations:

https://www.worldsolarchallenge.org/files/2272_2019_bwsc_regulations_release_version_3.pdf

http://americansolarchallenge.org/ASC/wp-content/uploads/2019/02/ASC2020-Regs-EXTERNAL-RELEASE-A.pdf

WSC:

2.24.1 Solar cars must be fitted with:

two rear stop lamps
one central stop lamp
left and right front direction indicator lamps
left and right-side direction indicator lamps
left and right rear direction indicator lamps.

2.24.2

Stop lamps must emit red light. Direction indicator lamps must emit amber light.

2.24.3 Lamps must be compliant with UNECE Regulations 6, 7 and 37, or the SAE/DOT equivalents. Teams must demonstrate compliance by either:

the presence of compliance markings on the lamps, or
detailed documentation that demonstrates compliance with the photometric requirements of the UNECE or SAE/DOT regulations, confirmed by the certifying engineer. Lamps approved for motorcycles may not meet these requirements.

2.24.4 Solar cars must have the correct type of lamp in each position. For example, side marker lamps may not be used as stop lamps. Lamps must be mounted with the correct orientation so that the photometric requirements of UNECE Regulations 6, 7 and 37, or the SAE/DOT equivalents, are met. Lamp position and visibility requirements are based on UNECE Regulation 48.

2.24.5 Rear stop lamps must be within 400 mm of the extreme outer edge of the solar car on each side, at least 600 mm apart (at least 400 mm apart if the solar car is less than 1300 mm wide), and at least 350 mm above the ground. The entire apparent surface must be visible 15° up, 5° down and 45° to the left and right.The “apparent surface” of a lamp includes all parts of the lamp surface that emit light and are not obscured by other parts of the light-emitting surface.

2.24.6 A central stop lamp is required. Viewed from behind the solar car, the lateral position of the lamp must coincide with the visual centre of the solar car (see the examples in the following diagram). The lamp must be higher than a point 150 mm below the rear windscreen or canopy, and the bottom of the lamp must be higher than the top of the rear stop lamps. The entire apparent surface must be visible 10° up, 5° down and 10° to the left and right.

2.24.7 Front and rear direction indicator lamps must be within 400 mm of the extreme outer edge of the solar car on each side, at least 600 mm apart (at least 400 mm apart if the solar car is less than 1300 mm wide), and at least 350 mm above the ground.

2.24.8 Side direction indicator lamps must be less than 1800 mm behind the front most part of the solar car and within 400 mm of the extreme outer edge of the solar car on each side.

2.24.9 The entire apparent surface of direction indicator lamps must be visible 15° up and 5° down. Minimum horizontal visibility requirements (of the right direction indicator lamps) are shown in the following diagram.

Direction indicators for the front of the vehicle:

Category 1:For use at a distance not less than 40 mm from the dipped-beam headlamp and/or the front fog lamp;

Category 1a:For use at a distance greater than 20 mm but less than 40 mm from the dipped-beam headlamp and/or the front fog lamp;

Category 1b: For use at a distance less than or equal to 20 mm from the dipped-beam headlamp and/or the front fog lamp.

Categories 2a and 2b: Direction indicators for the rear of the vehicle.

Category 2a:Rear direction indicator lamps with steady luminous intensity.

Category 2b:Rear direction indicator lamps with variable luminous intensity.

Categories 5 and 6: Supplementary side direction indicators for use on a vehicle also equipped with categories 1, 1a or 1b and 2a or 2b direction indicators

https://www.unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/2015/R006r6e.pdf

https://www.unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/2015/R007r6e.pdf

https://www.unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/R037r7e.pdf

ASC:

Part	Position	Viewing Angle	Other
Daytime Running Lights	must be located at the front of the vehicle at a distance at least 25% of the overall vehicle width away from the vehicle centerline and at a distance no further back than 175 mm from the absolute front of the vehicle.	30° from center in both directions and 15° up from horizontal.	Must be white. The Daytime Running Lights / Headlamps shall be in use when it becomes necessary to use the headlamps or windshield wipers on the team’s support vehicles.
Front Turn Indicators	must be located at the front of the vehicle at a distance at least 25% of the overall vehicle width away from the vehicle centerline and at a distance no further back than 175 mm from the absolute front of the vehicle.	80° from center in outwards, 45° from center in inwards and 15° up from horizontal.	Must be amber. Must flash between 60 and 120 pulses per minute.
Side Marker Turn Indicators	shall be mounted on each side of the vehicle between 10% and 30% of the vehicle length rearward from the absolute front of the vehicle.	60° from perpendicular to the centerline of the vehicle in both directions and 15° up from horizontal.	Must be amber. Must flash between 60 and 120 pulses per minute.
Rear Brakes	must be located at the rear of the vehicle and at a distance at least 25% of the overall vehicle width away from the vehicle centerline and at a distance no further forward than 175 mm from the absolute rear of the vehicle.	80° from center in outwards, 45° from center in inwards and 15° up from horizontal.	Must be red. It is permissible to have one set of lights per side of the car which operate as both the brake lights and turn indicators. The turn indicator operation has the priority in operation. Note that this is not permissible by WSC standards.
Rear Turn Indicators	must be located at the rear of the vehicle and at a distance at least 25% of the overall vehicle width away from the vehicle centerline and at a distance no further forward than 175 mm from the absolute rear of the vehicle.	80° from center in outwards, 45° from center in inwards and 15° up from horizontal.	Must be amber amber(if separately equipped from Rear Brake Lights). Must flash between 60 and 120 pulsesper minute.
High Mounted Brake Lights	at the rear of the vehicle canopy at an elevation of not less than 700 mm above ground.	30° from center in both directions and 15° up from horizontal.	Must be red.
BPS Fault Indicators	at the rear of the vehicle canopy at an elevation of not less than 700 mm above ground.	30° from center in both directions and 15° up from horizontal.	Must be white strobe. It is to activate any time the Battery Protection System (BPS) actuates to automatically open the Main Power Switch and remain active while the BPS fault is present. Must flash between 60 and 120 pulses per minute
Emergency Hazard			The front turn indicators, side marker turn indicators, and rear turn indicators shall be able to be activated simultaneously and flash in sync as an Emergency Hazard format.

All lights must be clearly visible and at least as bright as the reference standard from 30m away.

The reference standard lights are:

TruFLEX

20 LED (Length 3.35 in)

Item TF20 from Custom Dynamics

Red lights are Red LED with Red lens

Amber lights are Amber LED with Amber lens

https://www.customdynamics.com/red-led-truflex-with-red-housing?cat=320

https://www.customdynamics.com/amber-led-truflex?cat=320

(www.CustomDynamics.com 1-800-382-1388)

White lights are TF6WC for the BPS Fault Indicator Light and Daytime Running Lights/Headlights

https://www.customdynamics.com/media/wysiwyg/2017_Catalog.pdf

https://www.customdynamics.com/drl-truflex?cat=320

The reference standard lights will be used in the following manner:

Lights shall be powered by a 12 volt power source

Light shall be centered on a flat surface with a matte white finish of 11” x 8.5”.

Separate light boards shall be used for each color type as the standard reference.

Reference standard light boards shall be set aside of car to compare during inspections.