PREN 50172:1993被替代
Emergency Escape Lighting Systems
出版：European Committee for Standards - Electrical
专家解读视频
Specifies the indication and illumination requirements of escape routes in the event of failure of the normal supply, and specifies minimum continuous periods of such emergency lighting based on the size, type and usage of the premises.
DIN EN 50172 (2005-01) - Identical
VDE 0108-100:2005 - Identical
NF EN 50172:2004 - Identical
93/216721 DC - Identical
NBN EN 1838:1999 - Identical
NEN EN 50172:2004 - Identical
