| Descriptors | Emergency lighting, Escape lighting, Standby lighting, Lighting systems, Emergency electrical installations, Visibility, Illuminance, Glare, Means of escape from fire in buildings, Fire safety in buildings, Fire safety, Fire-escape routes, Exits, Emergency exits, Signs, Sign lighting (buildings), Siting, Electric cells, Marking, Electric wiring systems, Electromagnetic compatibility, Selection, Design, Acceptance (approval), Certification (approval), Log sheets, Maintenance, Inspection, Optical measurement |