Standards for emergency light
Specifying emergency light can very often be like stumbling through a minefield of different National and European standards. Below isthe most common one.
National/European standards
EN 1838:1999/ BS 5266-7:1999 Emergency light includes light technical conditions like reading distance, uniformity and level of light The UK has applied a class A deviation to EN 1838, reflected in BS 5266-7 which allows for clearly defined and permanently unobstructed escape routes up to 2 m wide to have a minimum illuminance of 0.2 lux on the centre line of the floor, but suggests that these routes should preferably be illuminated to 1 lux.
EN 50171:2001 Central power supply systems
Central power supply systems is a system standard that includes design, operation and maintenance of a central based emergency power supply. This is then referring to product standards for UPS and emergency luminaires.
EN 50172:2004/BS 5266-8:2004 Emergency light systems
System standard for emergency light. This is a system standard that includes design, operation and maintenance of an emergencylight system. This is then referring to productstandards for Emergency luminaires andstationary batteries.
EN 60598-2-22:1999 (Emergency luminaires)+ EN 50091-1-1 (UPS)
Product standards for emergency luminairesand Uninterruptible Power Systems (UPS).