This part of IEC 61347 specifies particular safety requirements for battery supplied electronic
controlgear for maintained and non-maintained emergency lighting purposes.
It includes specific requirements for electronic controlgear and control units for self-contained
luminaires for emergency lighting as specified by IEC 60598-2-22.
It is intended for controlgear for fluorescent lamps, but it is also applicable to other lamp types
e.g. incandescent, high pressure discharge lamps and LEDs.
This standard covers the emergency mode operation of a controlgear. For controlgear with a
combination of normal and emergency lighting operation, the normal lighting operation
aspects are covered by the appropriate part 2 of IEC 61347.
DC supplied electronic controlgear for emergency lighting may or may not include batteries.
This standard also includes operational requirements for electronic controlgear, which, in the
case of d.c. supplied electronic controlgear, are regarded as performance requirements. This
is because non-operational emergency lighting equipment presents a safety hazard. It does
not apply to d.c. supplied electronic controlgear for emergency lighting, which are intended for
connection to a centralised emergency power supply system. A centralised emergency power
system could be a central battery system.