This part of BS 5266 gives recommendations and guidance on the factors that need to be considered in the design of, and the installation and wiring of, electrical emergency escape lighting systems, in order to provide the lighting performance needed for safe movement of people in the event of the supply to normal lighting failing. It also gives recommendations for lighting in areas with fixed seating.
This part of BS 5266 is not applicable to dwellings, however its provisions are applicable to common access routes within blocks of flats or maisonettes.