北京市中小学校照明现状及其影响因素分析

目的了解北京市中小学教室照明现状及存在的问题,为卫生、教育部门指导学校改善教学环境提供参考。方法 2007年3月1日-4月15日采用典型抽样的方法,从北京市4个区县抽取80所中小学校160间教室进行夜间照明检测,评价学校照明现况及不同类型灯管照明效果。选取一间教室进行现场试验,探索应用GB 50034-2004《建筑照明设计标准》的操作建议。结果中小学教室课桌面平均照度为(264.9±118.9)lx,合格率(≥300 lx)为33.7%,照明功率密度P50为7.3 W/m2,黑板面照度P50为268.7 lx,合格率(≥500lx)为16.7%。结论目前中小学教室照明情况较之以前有整体提高,同时也存在一些问题,需要进一步改善。

Survey of lighting of classrooms of primary and secondary schools in Beijing and the influencing factors

Objective To find out the prevalence of lighting of classrooms of Primary and Secondary schools in Beijing and the related problems,it will make it easier for hygiene and education departments to direct schools to improve the lighting conditions.Methods From March 1st until April 15th,2007,using typical sampling method,160 classrooms were drawn from 80 primary and secondary schools in four districts.An illumination test was carried out to evaluate the illumination conditions of schools and the lighting effects of different types of strip lamps,and then one classroom was selected to field experience to search for operational suggestions for the application of the national standard,GB 50034-2004.Results The desktop illumination of primary and secondary schools was(264.9±118.9)lx,the ratio of reach the standard for desktop illumination(≥300 lx)was 33.7%,lighting power density was P50=7.3 W/m2,the blackboard illumination was P50=268.7 lx,and the ratio of reach the standard for blackboard illumination(≥500 lx)was 16.7%.Conclusion The lighting condition of classroom in primary and middle schools is better than before,but there are still some lighting condition problems,which is far from the requirements of the government standard.The illumination in the classrooms needs further improved.