Certain vehicles must carry flares and other warning devices

No person shall operate any motor truck, passenger bus or truck tractor upon any highway outside of the corporate limits of municipalities at any time from a half hour after sunset to half hour before sunrise unless there shall be carried in such vehicle the following equipment, except as provided in Section 56-5-5070: (1) At least three flares or three red electric lanterns, each of which shall be capable of being seen and distinguished at a distance of five hundred feet under normal atmospheric conditions at nighttime. Each flare (liquid-burning pot torch) shall be capable of burning for not less than twelve hours in a five-mile-per-hour wind velocity and capable of burning in any air velocity from zero to forty miles per hour. Every such flare shall be substantially constructed so as to withstand reasonable shocks without leaking. Every such flare shall be carried in the vehicle in a metal rack box. Every such red electric lantern shall be capable of operating continuously for not less than twelve hours and shall be substantially constructed so as to withstand reasonable shock without breakage. (2) At least three red-burning fusees unless red electric lanterns are carried. Every fusee shall be made in accordance with specifications of the Bureau of Explosives, New York, and so marked and shall be capable of burning at least fifteen minutes. (3) At least two red cloth flags, not less than twelve inches square, with standards to support them.