In residential buildings, from the perspective of saving investment, when self powered Shenyang emergency fire lighting The lamp can also be used for daily lighting; At the same time, in order to ensure the reliability of the system operation, please ensure that the lights are controlled on site in emergency situations such as fire. The working state of the switch shall not affect the emergency lighting of the lamp.

Fire emergency light is a commonly used lighting tool in fire emergency. It has long emergency time, high brightness and automatic emergency power cut function. It has the characteristics of low power consumption, high brightness and long service life. It is designed with a power switch, which is suitable for public places such as factories, hotels, schools and units, in case of power failure for emergency lighting.

The illuminance index required for normal lighting is different from that required for safe evacuation of personnel in emergency (such as fire). When the fire emergency lamp is used for daily lighting, its luminous flux index should be increased, and its rated power index should also be increased by 5-10 times, which directly affects the number of lamps on load in the distribution circuit.

At present, Type B lighting fixtures with dual light sources can meet the specification requirements. High power light source meeting the general lighting illuminance index and low power fire emergency light source meeting the fire emergency lighting illuminance index shall be set in the lamp. This type of lamp is powered by the main power supply at the voltage level of AC220V. Under non fire conditions, infrared and sound induction modes can be used to control the lighting of normal lighting sources under the power supply status of the main power supply to meet the illuminance required for daily lighting; In case of fire and other emergencies, the system will switch to its own battery for power supply, and control the fire emergency lighting source of the lamps to turn on in an emergency. This can not only solve the problem of load capacity and terminal voltage drop of distribution circuit when the lamp uses low-voltage main power supply, but also solve the problem of excessive capacity of the lamp's own battery.

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