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Emergency
SYL Safe
This guide should be read in conjunction with current standards.
Legislation Changes & Requirements
The British Standard BS5266 has been revised to conform with the European Standard EN1838 (issued in the UK under reference BS EN1838/BS5266 Part 7) which
specifies
luminous requirements for emergency systems installed in premises. It also now calls up the luminaire product standard BS EN60598-2-22: 1999.
Emergency lighting is provided for use when the supply to the normal lighting fails and is therefore powered from a source independent of that supplying the normal
lighting. For the purposes of this standard emergency lighting is regarded as a generic term of which there are a number of forms.
Definitions
EMERGENCY EXIT
A way out that is intended to be used in an
emergency.
ESCAPE ROUTE
A route designated for escape in
the event of an emergency.
EMERGENCY ESCAPE
LIGHTING
That part of emergency lighting that provides
illumination for the safety of people leaving a location
or attempting to terminate a potentially dangerous process before
doing so.
ESCAPE ROUTE LIGHTING
That part of emergency escape lighting provided to ensure that the
means of escape can be effectively identified and safely used when
the location is occupied.
EMERGENCY OPEN AREA LIGHTING
In some countries this is known as anti-panic lighting. This relates
to that part of emergency escape lighting provided to avoid panic
and provide illumination, allowing people to reach a place where an
escape route can be identified.
HIGH RISK TASK AREA LIGHTING
That part of emergency escape lighting that provides illumination for
the safety of people involved in a potentially dangerous process or
situation and to enable proper shut down procedures for the safety of
the operator and other occupants of the premises.
Areas Covered/Levels of Illumination
DEFINED ESCAPE ROUTE
Based on 2m wide on the horizontal plane, preferably 1 lux but not less than 0.2 lux on the centre line. The lighting provided should operate
within 5 seconds of the failure of the normal supply.
OPEN AREA (Sometimes referred to as ‘anti-panic’ lighting)
Not less than 0.5 lux at floor level of the open space. The ratio of max to min illuminance should be greater than 40:1.
These extracts are provided for guidance purposes. In order to fully comply with the many elements of the various applicable standards, a full and thorough
assessment must be made.