Should exit signs for stairwells use safety exit markers or evacuation exit markers?

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According to Table B.6 of the standard GB 17945-2024 on Fire Emergency Lighting and Evacuation Signaling Systems, exit sign lights are divided into two categories: safety exit sign lights and evacuation exit sign lights, as shown in the table below. Article 3.14 of this standard defines fire emergency evacuation sign luminaires as luminaires that use graphics and/or text to perform the following functions: a) indicating safety exits, evacuation exits, and refuge floors (rooms) ； It is also stated in Note 2 that a safety exit refers to the entrances and exits of stairwells and outdoor stairs used for the safe evacuation of people, or exits leading directly to safe areas inside or outside the building ； An evacuation exit refers to all exits along the evacuation route. Therefore, in accordance with the definition and annotations in Article 3.14 of the Standard GB 17945-2024 on Fire Emergency Lighting and Evacuation Signaling Systems, the entrances and exits at which safety exit signs must be installed include: 1. Entrances and exits to stairwells and outdoor stairs ； 2. Exits leading to safe indoor and outdoor areas. The entrances and exits of stairwells should also include those of the antechamber in front of smoke-proof stairwells, as well as those of the shared antechamber between smoke-proof stairwells and fire elevators (entrance and exit signs indicating evacuation exits or safety exits are generally not required for the separate antechambers of fire elevators). The definition of safety exits in Term 12 of the \"General Code for Fire Protection in Buildings\" GB 55037-2022, and in Article 2.1.14 of the \"Code for Fire Protection Design of Buildings\" GB 50016-2014 (2018 edition), is exactly the same as the definition given in Section 3.14 of the \"Fire Emergency Lighting and Evacuation Signaling Systems\" GB 17945-2024 ； The “General Code for Fire Protection in Buildings” GB 55037-2022 uses slightly different wording in its definition of evacuation exits, but the essence is the same: an evacuation exit refers to an exit in a building that allows people to leave the area affected by a fire or the building itself during a fire, and includes safety exits and room evacuation doors.