Precautions for choosing fire emergency lights
When buildings are in danger, fire emergency lighting is very important for protecting people’s lives and property. When a fire occurs in a building, if there is no emergency lighting such as emergency lighting and evacuation signs when the normal power supply is cut off, the trapped people often crowd, collide, fall, etc. because they cannot find a safe exit, especially in high-rise buildings and theaters. After a fire occurs in public gathering places such as auditoriums, auditoriums, and dance halls, due to crowded people and unfamiliarity with the conditions of the places, it is very easy to cause larger casualties.
So what problems should we pay attention to when choosing fire emergency lights?
First, do a good job in installation, use and management
With qualified lamps and lanterns, in order to make them really effective, they must be strictly implemented in accordance with relevant regulations in installation, use and management, otherwise emergency lamps and lanterns will become deaf ears – furnishings.
Emergency lighting for evacuation should be placed on the wall or ceiling, safety exit signs should be placed at the top of the exit, and the indication signs of the evacuation aisle should be placed at the evacuation aisle and its corner, 1 1/2 from the ground. meters below the wall. The distance between aisle evacuation sign lights should not be greater than 10 meters. Emergency lighting and light evacuation signs shall be provided with protective covers made of glass or other flame retardant materials, and the oxygen index of the protective cover shall be above 32.
Maintenance and management of emergency lighting fixtures should be strengthened at ordinary times, regular inspection and scheduling should be carried out, and any damage such as backup power supply and protective cover should be found. superior.
Second, a reasonable selection of emergency lighting should be carried out
The current international fire emergency lighting can generally be divided into the following seven according to the power supply and control methods. Types:
1. Self-contained power supply independent control type;
2. Self-contained power supply centralized control type;
3. Centralized power supply independent control type;
4. Centralized power control type;
5. Sub-main power supply independent control type;
6. Sub-main power centralized control type;
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7, the mother-in-law power supply and the mother-in-law control type.
When choosing an emergency light, it is necessary to make a reasonable selection according to the characteristics of the building and the situation of the fire power supply. For new projects, especially those with fire control rooms, the wiring should be unified during construction as far as possible, and centralized control should be selected. For scattered small buildings or for emergency lamps added later for rectification, generally choose the independent control type with its own power supply.
Third, we should pay attention to the quality of products, and distinguish civil emergency lighting from fire emergency lighting.
In the process of quality control, visual inspection should be carried out first. Qualified lamps and lanterns should have clear and complete texts, symbols and signs, no corrosion, peeling and blistering on the surface, no obvious scratches, cracks, burrs and other mechanical damages, no loose fastening parts, and complete operating instructions.
The second is to test the performance, mainly to test the battery performance and lamp voltage conversion work. The battery capacity of qualified lamps and lanterns should be continuously discharged for more than 90 minutes. When the main power state is transferred to the emergency state, the main power voltage should be in the range of 132 to 187 volts.
Then it is to see whether the production and operation procedures of the business are complete. Fire emergency lighting is a kind of lamps with strong professionalism and high standards. The production and sales enterprises must have complete procedures and business qualifications, and must have product qualification certificates, product registration certificates and product testing reports of the year. Operating without a license is illegal, and the quality of its products is not guaranteed.
In the purchase, attention should be paid to distinguish between fire emergency lighting and ordinary civilian emergency lighting.
