Fire emergency lighting is a very important lighting equipment in fire safety management, and the fire emergency lighting system is an important component of the fire protection system. Fire emergency lighting fixtures are designed to provide illumination for personnel evacuation and firefighting operations! It usually uses an external power source for power supply and automatically switches to battery powered mode when there is a power outage! Fire emergency lighting fixtures are suitable for fire emergency lighting and are the most common type of lighting equipment in fire emergency situations. They have the characteristics of long emergency lighting time, high brightness, low power consumption, long service life, and automatic power outage emergency function. It is designed with a power switch and indicator lights on its side, suitable for use as emergency lighting in public places such as factories, hotels, schools, and units in case of power outages. Generally, high-rise buildings, shopping malls, entertainment venues, and other densely populated areas will be equipped with fire emergency lighting! Next, let's take a look at the relevant knowledge introduction about fire emergency lighting.

1、 OPPO Lighting Fire Protectionemergency lightingLamp product features:

1. Fast emergency conversion speed (≤ 0.2 seconds);

2. The lamp head can rotate 360 degrees, providing good light focusing;

3. The lamp head adopts elliptical metal spray coating, which has a strong sense of three dimensionality;

4. Intelligent fault automatic detection function, stable and reliable operation;

5. High brightness LED light source application, low power consumption, and long service life;

6. The lamp body is first coated with high-quality metal for the lightbox, with layered and color separated design, creating a novel and beautiful appearance.

2、 Classification of Fire Emergency Lighting Devices

1. According to function, it can be divided into the following two categories:

① Lighting fixtures. In the event of an accident, necessary lighting can be provided to corridors, exit passages, stairs, and potential hazardous areas.

② Iconic lighting fixtures. It can clearly indicate the direction of exits and passages, with text and illustrations on the lights. The brightness of the sign surface is 7-10cd/m2, and the stroke thickness of the text is at least 19mm, with a height of at least 150mm. The observation distance is 30m, and the translucent text has a significant contrast with the background.

2. According to the working status, it can be divided into the following three categories:

② Continuous emergency light. Regardless of whether there is a malfunction in the normal lighting power supply, it can continue to provide lighting.

① Non continuous emergency lights. Lighting is only provided when the normal lighting power supply fails.

③ Composite emergency light. Fire emergency lighting fixtures are equipped with two or more light sources, at least one of which can provide illumination in the event of a malfunction in the normal lighting power supply.

3、 Wiring method for fire emergency lights;

1. Wiring method

Each emergency lighting fixture should be equipped with a dedicated circuit and no switch should be installed midway. Two wire and three wire emergency lighting fixtures can be unified on a dedicated power supply. The setting of each dedicated power supply should be combined with the corresponding fire prevention regulations. If the emergency power supply and lighting fixtures rotate separately, their electrical connections should use high-temperature resistant wires to meet fire protection requirements.

Two line system, this connection method is commonly used for special emergency lighting fixtures, suitable for emergency lights that are not used for illumination or for continuous illumination for 24 hours (CED marker lights belong to this type). When the power is cut off, the emergency lights will automatically light up.

The three wire system and connection method are commonly used for emergency lights, which can control the on or off status of emergency lighting fixtures during normal lighting. When the power grid is cut off, regardless of the switch status, the emergency lights will immediately light up for emergency use. K is the regular lighting switch.

2. Precautions for wiring emergency lights:

① If emergency lighting is used as part of regular lighting, a three wire controllable connection method should be adopted.

② Accurately grasp the characteristics of various wiring methods to avoid blind wiring that may not be effective;

③ For multi story public buildings, if there is no fire control center, emergency lighting fixtures in various parts can be controlled by adding local switches (single lamp single control or multi lamp control) or centralized control in the distribution box using a three wire connection method.

4、 Installation and maintenance of fire emergency lights;

The installation specifications for fire emergency lighting are compiled according to GB51309-2018 "Technical Standards for Fire Emergency Lighting and Evacuation Indication Systems".

1. Luminaires should be fixedly installed on non combustible walls or non combustible decorative materials, and should not be installed on doors, windows, or other movable objects.

2. After installation, the lamps should not affect the normal passage of personnel. There should be no obstructions around the lamps, and various status indicators on the lamps should be easy to observe.

3. When installing lighting fixtures above ceilings, evacuation corridors, or passages, they should comply with the following regulations:

① Fire emergency lighting can be installed using embedded, ceiling mounted, and suspended methods.

② The marker lights can be installed in a ceiling mounted or suspended manner; For places with an indoor height greater than 3.5m, super large, large, and medium-sized sign lights should be installed by lifting.

③ When the lighting fixtures are installed by lifting, metal suspension rods or chains should be used, and the upper end of the suspension rods or chains should be fixed to the building components.

4. When installing lamps on side walls or columns, they should comply with the following regulations:

① Wall mounted or embedded installation can be used;

② When the installation height is not more than 1m above the ground, there should be no sharp angles, burrs or other protrusions on the surface of the lamp protruding from the wall or column, and the maximum horizontal distance from the protruding wall or column should not exceed 20mm.

5. In non centralized control systems, when using plug connections for self powered lighting fixtures, specialized tools should be used for disassembly.

6. Fire emergency lighting should be installed on the ceiling.

7. When conditions are limited, fire emergency lighting fixtures can be installed on the side walls of corridors and should comply with the following regulations:

① The installation height should not be between 1m and 2m above the ground;

② When installing on the side wall below 1m from the ground, it should be ensured that the light shines below the horizontal line of the lamp.

8. Fire emergency lighting should not be installed on the ground.

9. Emergency lights are all discharged from the factory and must be charged for 20 hours before use.

10. In engineering design, for the convenience of daily maintenance and management, it is best to use dedicated power supply circuits for fire emergency lighting on each floor.

11. Emergency lighting fixtures in use should undergo regular performance checks, with continuous switch tests conducted every half month or one month to check the circuit conversion and emergency function of the battery, and discharge to extend the battery life.

12. To ensure the reliability of the power supply for fire emergency lighting, if conditions permit, it should be supplied by the low-voltage emergency bus section of the substation. That is, when using a diesel generator set as an emergency power source, as long as the generator is put into use, it will continue to have electricity to ensure power supply.

13. In the event of a fire, there is less smoke and more oxygen near the ground, and people's instinctive response to evacuation is to bend down or crawl forward. Therefore, local high-intensity lighting is more effective than uniform lighting brought by high-level installation. Therefore, low-level installation should be advocated, that is, providing evacuation emergency lighting near the ground or at ground level.

14. Ensure fire protection for distribution lines. When concealed, lay them in non combustible structures with a protective layer thickness of not less than 30mm. When exposed, wear metal pipes and apply fire-resistant coating or other fire prevention measures outside the steel pipes; The line adopts fire-resistant cables or fire-resistant cables and wires.

5、 Basic knowledge of fire emergency lighting;

1. According to the actual engineering needs, the emergency power distribution box can also provide the DC power required for fire control.

2. Fire emergency sign lights. It is located on the wall below 1 meter above the ground at the top of the emergency exit and the evacuation corridor and its corners, and adopts a single emergency mode. In case of a fire, the signal is sent out by the fire control room to connect.

3. Fire emergency lighting circuit. The lighting of this circuit usually serves as normal public lighting and can be controlled through lighting switches. In the event of a fire, it can be put into emergency mode by directly connecting the emergency evacuation lighting fixtures. At this time, the switch is in a state of loss of control, and the fire emergency lighting is not controlled by the switch.

4. For transformer and distribution rooms, fire control rooms, fire water pump rooms, smoke control and exhaust rooms, battery rooms for fire power supply, self provided generator rooms, telephone main rooms, computer rooms, and important rooms that still need to work in the event of a fire, emergency power boxes should be set up separately, and emergency lighting should ensure normal illumination during normal times.

5. General public lighting circuits. This type of lighting is general public lighting and does not belong to emergency lighting, so it does not need to be connected to circuits with batteries, and it is not required to be immediately connected in case of a fire. This type of lighting connected to the ordinary circuit of the accident lighting distribution box can save the cost of setting up a separate distribution box, without increasing the capacity of the battery, and is relatively easy to manage.