FIELD: lighting engineering.
SUBSTANCE: invention relates to lighting engineering, namely to the field of power supply systems and lighting control of premises, administrative, commercial, cultural, entertainment and sports buildings and structures powered by the AC network. The emergency lighting system includes a mains voltage rectifier, an emergency power supply unit, a mains voltage switch for the power supply circuit of the illuminator and the emergency power supply unit, a number of LED illuminators, each of which includes a load in the form of LEDs connected in series, a current source and a ripple voltage detector in the network connected to the load current source.
EFFECT: exclusion of an additional control wire going to each illuminator, and ensuring that minimal lighting is maintained in the event of a repeated disconnection of the supply voltage until the end of charging the standard battery.
1 cl, 1 dwg
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