What are the requirements for the installation of emergency lighting?
The installation height of emergency lighting is generally 2.3m. The building code only defines the illuminance of the occasions where emergency lighting is installed, that is, not less than 0.5lx for non-special occasions, fire control room, fire pump room, self-provided generator room The illuminance should meet the normal lighting illuminance requirements.
Emergency photos are generally installed on the top in the correct direction. The specification does not clearly define the installation distance. In actual installation, the installation in the aisle is generally at a distance of 20 meters. Installation in a large space is better to maintain continuous visual perception.
In addition to the normal power supply, the emergency lighting lamp has a power supply or a battery cabinet or an emergency lamp with its own power supply.
After the normal power supply for emergency lighting is cut off, the power conversion time is: evacuation lighting≤15S; standby lighting≤15S; safety lighting≤0.5S.
Emergency lighting The evacuation lighting consists of a safety exit sign light and an evacuation sign light. The height of the safety exit sign light should not be less than 2m from the ground, and it should be installed above the inner side of the evacuation exit and stairway.
The evacuation sign lamp should be installed on the top of the safety exit, the stairwell, the evacuation walkway and its corner should be installed on the wall below 1m. The distance between the marker lights on the evacuation passages shall not be greater than 20m.
The setting of evacuation sign lights does not affect normal traffic, and other sign boards that are likely to be mixed with evacuation sign lights should not be set around it.
Emergency lighting lamps, lamps with a temperature greater than 60°C during operation, when close to combustible materials, take heat insulation, heat dissipation and other fire prevention measures.
Emergency lighting circuit has an independent emergency lighting circuit in each fire compartment, and the lines passing through different fire compartments have fire blocking measures.
The evacuation lighting line adopts fire-resistant wires and cables, and the pipe is used for open coating or the rigid pipe is used for dark coating in the non-combustion body. The thickness of the dark coating is not less than 30mm. Emergency lighting wires use copper core insulated wires with a rated voltage not less than 750V.
