道路和隧道照明用LED灯具能效限定值及能效等级(GB 34748—2019)应用实践中几点建议与思考  

Limited Energy Efficiency Values and Energy Efficiency Grades ofLED Luminaires for Road and Tunnel Lighting ( GB 34748—2019)Suggestions and Reflections on Application Practice

作　　者：袁奇 YUAN Qi(Yiyong Photoelectricity Technology Co.,Ltd.,Shanghai 200000,China)

机构地区：[1]上海易永光电科技有限公司,上海200000

出　　处：《中国照明电器》2024年第1期40-43,共4页China Light & Lighting

摘　　要：目前,二次配光技术尚无法解决因全反射光过多而导致的溢散光增加,从而降低照明效率难题;通过改变光的行进路径减少外溢光、使得更多的光聚焦于需求界面从而提高光强,有效地提高照明效率;高效能灯具不等同于高光效利用率。灯具实测效能基本上可满足光源集成效能的90%以上,各达标厂商选用规格统一的光源,能效差别并不大。可以得出结论,评价灯具效能高低基本上取决光源效能高低,与灯具厂相关性并不大。At present,secondary light distribution technology is unable to solve the problem of increasing scattered light caused by excessive total reflection light,thereby reducing lighting efficiency;By changing the path of light travel to reduce overflow,more light is focused on the demand interface,thereby improving light intensity and effectively improving lighting efficiency;Efficient lighting fixtures are not equivalent to high light efficiency utilization.The measured efficiency of lamps can basically meet more than 90%of the integrated efficiency of light sources.Manufacturers that meet the standards choose light sources with unified specifications,and the difference in energy efficiency is not significant.It can be concluded that the evaluation of lamp efficiency mainly depends on the efficiency of the light source,and is not closely related to the lamp factory.

关 键 词：功能照明 能效等级 光效利用率 照明效率 功率密度 

分 类 号：TM923.41[电气工程—电力电子与电力传动]