9.2.2. LUMINANCE PROPERTIES
Photoluminescent safety signing and continuous low location
lighting lines should be produced from minimum Class II photoluminescent
material, with characteristics as described in 7.2.
and 7.3.
9.2.3. LOCATION OF EMERGENCY AND ESCAPE PATH DIRECTIONAL SIGNS
9.2.3.1. HEIGHT
The principal photoluminescent emergency and escape path directional
signing should be located between 1.80m and 2.20m from floor level
to the bottom of the sign.
9.2.3.2. ILLUMINANCE
Given that there are alternative location sites possible to satisfy the
recommendation that an emergency and escape path sign should
be clearly visible from any location within the premises, the final location
should be chosen to maximise the activating illuminance on the sign.
Alternative sites offering illuminance greater than 200 lux with fluorescent sources, or 300 lux with tungsten sources, may be considered equivalent.
9.2.4. NUMBER AND FREQUENCY OF ESCAPE PATH DIRECTIONAL SIGNS
9.2.4.1. DISTANCE APART
Signs along the escape path should be no greater than 5m
apart.
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9.2.4.2. CHANGES OF DIRECTION AND USE OF
ARROWS AND WAYFINDING CONVENTION
All changes of direction along the escape path should be accompanied
by the appropriate sign as described in National and International
Standards for directional meaning of arrows.
9.2.4.3. FINAL EXIT, FIRE EXIT, EXIT FOR
EMERGENCY USE ONLY
All exits from an escape path should have the appropriate
signs above the door and on the door at eye level. If a photoluminescent
wayfinding guidance system is installed at the same time as emergency
lighting conforming to National or International minimum requirement
then the provision of that Standard should apply to the photoluminescent
sign mounted above the door with illuminance increased to minimum
20 lux and uniformity 0.7.
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