Selection Factors And System Requirements Of Fire Emergency Lights
Sep 22, 2022
The selection of fire emergency lights must meet the waterproof and dustproof requirements of the installation site. In general, ordinary civil engineering buildings have few requirements for the selection of stair fire emergency lights, so no special requirements are made. Industrial buildings are different. The selection of emergency lights in stairwells shall be based on the requirements of industrial environment. If the environment is humid, direct fire emergency lamp or water lamp with higher waterproof grade shall be selected. In places with strong corrosive gas, anti-corrosion airtight emergency light shall be selected. As there is much dust in industrial buildings, emergency lighting with dust-proof equipment and appropriate protection level shall be selected. If the building is close to flammable, explosive or inflammable places, GB17945-2010 shall be followed.
Fire emergency lighting and evacuation display system "Relevant protective lamps shall be selected according to the specified standards. In general, emergency lamps or evacuation indicators shall be set on the rotating platform of the stairwell of ordinary buildings. The installation of emergency lamps has certain height restrictions, which can be set at a height of about 2m above the ground. In addition, the installation height of evacuation indicators is generally controlled at about 0.4m above the ground. In conclusion, when selecting emergency lamps, the function, nature and other factors of the building shall be comprehensively considered 。
system requirements
In the design of emergency lighting for stairwells, attention should be paid to the problems of lighting and distribution lines. Fire resistant cables and heat resistant wires shall be used for emergency wires. Direct emergency light line. In general, emergency distribution lines shall be equipped with short circuit protection devices. The line laying process requires that the emergency lighting line and the normal lighting line be laid separately, and there is no need to share a neutral line between them. The branch lines of emergency lights must be divided according to the fire prevention area, and the branch lines of different fire prevention areas cannot cross.
