照度不同于亮度郑爱武，杨保生建筑设计防火规范中，对火灾事故照明和疏散指示标志灯的照度都有明确的要求。如《建规》第１０．２．３条和《高规》第８．２．３条都规定，疏散用的事故照明最低照度不应低于０．５勒克斯（ｌｘ）；《人民防空工程设计防火规范》第７．２．... Illumination is not the same as brightness. Zheng Aiwu, Yang Baosheng The building design fire protection code has clear requirements for the illumination of the fire accident lighting and the evacuation indicator lights. For example, Article 10.2.3 of the “Building Regulations” and Article 8.2.3 of the “High Regulations” stipulate that the minimum illuminance of accident lighting for evacuation shall not be less than 0.5 lux (lx); “People’s Air Defense Engineering Design Fire Prevention Regulation 7.2. ...