In Fires and Other Cataclysms, Evacuation Lighting, Lamps and Light Indicators of the Ways Out of Dangerous Areas, Lighting of the Open Areas to Prevent Panic, Firefighters Are Connec Ted by a Separate Wire on Which Thelll Disconnecting of the Power in Emergency Or Fire Alarm does not after the General Wire. There are Led Lights, Which Are Based on Autonomous Power From Built -in Batteries, These Lamps Are Also Connected to the Network Through The Power Supply and Begin To Performers Their Fu NCTIONS WHEN THE MIN POWER IS TURNED OFF.