由铁科院通号所主持，哈尔滨炬光制灯厂参加起草的铁道行业标准《机车标志灯及辅助照明灯技术条件》，通过铁道部审查。铁路用的机车标志灯及辅助照明灯是保障机车夜间运行安全的主要灯具之一。我国目前辅助照明灯光源的平均寿命只有300h左右，需要经常更换灯泡，光照距离也较 The railway industry standard “locomotive sign light and auxiliary lighting technical conditions”, chaired by China Railway Science Institute Tonghao No., participated in the drafting of Harbin Torch Light Factory and passed the review by the Ministry of Railways. Railway locomotive lights and auxiliary lights used to protect the safety of the locomotive one of the major lamps and lanterns at night. China’s current average life expectancy of auxiliary light source only about 300h, you need to frequently replace the light bulb, light distance is also more