This standard specifies the principles and requirements for the planning, design and installation of emergency guidance systems (safety way guidance systems, SWGS) in public buildings. This standard applies to the design and setting of electric light source elements and phosphorescent elements in SWGC in public buildings, and also applies to the determination of different elements in SWGS according to the use environment, materials, design, installation and maintenance of SWGS. This standard does not apply to the design and installation of touch and hearing emergency facilities, nor does it apply to the design and installation of emergency lighting systems (especially the design and application of evacuation lighting), unless it is used for emergency equipment on evacuation routes or evacuation routes Lighting design for upper feature locations such as fire exits or stairs. This standard does not apply to the design and setting of SWGS for ships in waterway and sea transportation.