Q:Please describe the working principle and function of the safety exit sign and emergency light

Working principle: emergency lights emergency lights inside there are two sets of power supply system,

Q:What is the standard for the installation distance of fire emergency lights and exit lights?

Evacuation routes of longer distances should be guided by fire department or in accordance with emergency luminaire

Q:What are the fire emergency lights? Is this a new type of double head lamp?

according to the form of emergency power supply is divided into:

Q:What's the function of the four wire system for emergency lighting?

The emergency power supply can not switch the switch directly to the front of the load just like the common electric appliance

Q:Emergency lights turn off electricity and unexpected power outages, how emergency principle?

The emergency lamp power from the normally closed contact of a relay is controlled, the contacts are open in the relay coil is energized,

Q:How to install emergency light?

fire pump room, smoke control room, battery room for fire fighting electricity, self generating generator room, telephone switchboard room, etc..

Q:When will the car emergency lights be used?

Some mini car double flash switch in the front direction close to the steering column, there is a red column, this column can open the double flash file.

Q:What are the mounting distances of emergency lights, not the evacuation lights?

namely non special places less than 0.5Lx, the fire control room, fire pump room, generator room and other illumination should meet normal illumination requirements.

Q:How much is the distance between fire emergency lights?

The exit mark light is no less than 2m, and is installed above the evacuation exit and the side of the stair mouth.

Q:Under what circumstances will fire emergency lighting be on?

There are more than two light sources in the lamp emergency lighting, and at least one can provide illumination when the normal lighting power supply fails.