一、改造前现状

瀚文外国语学校改造前教室照明存在以下问题:

二、改造方案

三、安装要点

四、改造后数据对比

指标改造前改造后国标
桌面照度180lx420lx≥300lx
黑板照度150lx560lx≥500lx
UGR眩光值2216≤19
显色指数Ra7092≥80
频闪深度15%1.8%≤5%

五、改造费用

FAQ

Q:教室改造后照度太高会不会刺眼?
A:420lx在国标范围内(300-500lx),配合UGR<19的防眩设计不会刺眼。

Q:改造需要停课吗?
A:一间教室施工约2-3小时,可利用周末或课后时间完成。

1. Pre-Retrofit Conditions

Hanwen Foreign Language School classroom issues before retrofit:

2. Retrofit Solution

3. Installation Guidelines

4. Before/After Data Comparison

MetricBeforeAfterStandard
Desktop illuminance180lx420lx≥300lx
Blackboard illuminance150lx560lx≥500lx
UGR2216≤19
CRI Ra7092≥80
Flicker depth15%1.8%≤5%

5. Retrofit Costs

FAQ

Q: Is 420lx too bright for classrooms?
A: 420lx is within standard range (300-500lx). With UGR<19 anti-glare design, it's not uncomfortable.

Q: Does retrofitting require class suspension?
A: One classroom takes ~2-3 hours. Can be done during weekends or after school.