(1)In factories where employees work at night no movements of railway vehicles otherwise than by hand shall be permitted by the Manager between sunset and sunrise unless the tracks and their vicinity are lighted on a scale of not less than one foot candle as measured at ground level out of doors by any recognised type of photometer or illumination meter at a time when the atmosphere is free from dust or obscuring fumes.(2)In no circumstances shall any train be moved, otherwise than by hand between sunset and sunrise or at any time when there is fog unless it carries a white head light and a red rear light.
