Comparative Analysis of Definitions,Component Classifications and Illuminance in Emergency Lighting Standards of China and Abroad

YANG Jingyu; YAN Yonghong

doi:10.3969/j.issn.1004-440X.2025.06.006

Abstract：A comparative study of domestic and international emergency lighting standards can intuitively reveal the breadth,depth,and key focuses of existing standards in this field,thereby providing references for the future improvement of emergency lighting standards.This paper selects representative standards and relevant documents in the field of emergency lighting at home and abroad,and conducts a comparative analysis of the definitions,component classifications,and corresponding core illuminance indicators of emergency lighting across different standards.The literature search covers two major categories of emergency lighting standards:those for indoor and outdoor building environments.The results indicate that emergency lighting-related standards based on different technical routes and perspectives exhibit discrepancies in the definition and component classification of emergency lighting.Furthermore,most of the current global regulations on illuminance indicators in emergency lighting standards are limited to indoor building scenarios,with rare provisions on illuminance indicators for outdoor emergency lighting.For indoor building emergency lighting standards,the core illuminance indicators primarily focus on horizontal evacuation illuminance,while provisions on illuminance indicators for vertical evacuation are relatively scarce.However,a small number of outdoor vertical evacuation illuminance indicators that can be used for reference have been proposed in other non-emergency lighting standards.The study suggests that the definitions,classifications,and indicators of different types of emergency lighting standards should be unified,and the standardization research on indoor and outdoor vertical evacuation emergency lighting should be strengthened.