Which power source should be used for emergency lights

Choice of power transformer: rechargeable battery, accumulator

The selection of the power transformer shall comply with the following provisions:

(1) The battery charging time should not be less than 20 minutes when using daylight lamp, and not less than 30 minutes when using fluorescent lamp.

(2) Nickel-cadmium batteries or lead-acid batteries should be used for emergency lights with limited installation capacity. Large-capacity open-mouth rechargeable batteries can be used for batteries with long charging time.

(3) Prefabricated components of electrical equipment include alternating current and ac and communication converters, switching switches on the work characteristics of detection circuits, ballast prefabricated components, etc.

Emergency light

Safety fire emergency lighting regulations

1. When emergency lights are used as part of all normal lighting equipment, separate control switches are required, and the control panel switch should be different from the general lighting panel switch or the light type with display information should be selected.

2. When emergency lights are not used as part of normal lighting equipment and are not used in addition, when all normal lighting equipment is turned off due to business, emergency lighting power should be allocated automatically.

Fire safety The illumination value of fire safety evacuation lighting equipment at fire safety exit shall not be less than 0.5Lx, and the civil air defense equipment shall be LX.

4. In the workplace, the illumination value of safety factor lighting equipment shall not be less than 5% of the illumination value of general lighting in the workplace.

Unless otherwise specified, the illumination value of the embedded lighting equipment shall not be less than 10% of the illumination value of the general lighting of the site.

6. The embedded lighting equipment in the fire control room, fire water pump room, smoke control room, high and low pressure, high and low pressure, high and low pressure power distribution room, reserved diesel generator room, telephone room and other rooms that still need to work in case of fire shall ensure the illumination of all normal lighting equipment.

7. For safety exits and evacuation exits in public places, press the evacuation indicator light at the entrance.

8 fire safety fire evacuation lighting should be built in the wall or on the top of the canopy, exit signs should be built on top of the entrance, evacuation aisle indicators should be built at the corner and evacuation corridor, apart from the ground 1. Om the following metope, straight type fire safety evacuation fire evacuation corridor lights that spacing can not exceed 10. Om, bag type fire safety evacuation fire evacuation corridor lamp spacing can't play against 10. Om, corridor corner area hydrophobic, evacuation indicator light spacing can't exceed 1. Om.

9. In civil air defense equipment, the spacing of evacuation indicator lights in evacuation corridor shall not exceed 10 meters, and the height from the ground shall be 1.00 -- 1.20 m.

10. Emergency lights and evacuation signs can use battery as reserve switching power supply. The battery can be configured according to 90min. The time of continuous power supply and distribution system of lighting equipment should not be less than 30min.