Fire protection regulations require that all public reception agencies must be equipped with safety lighting. The composition of safety lighting should be marked with two parts: iconic lighting and ambient lighting. For "Safe Lighting" with a covered market.
There must be three types of current four types of protective lighting: A: a luminaire powered by a central power source, and always lit when the public is present; type B: when the public is present, the luminaire is always a point Bright; the power supply can be either a battery or a normal power supply. The backup power generation group should ensure that the safety power supply circuit is powered within one second (you can also use autonomous power supply safety light); D type: use portable light. The same central power supply can supply safe lighting to multiple points, regardless of their type; of course they must be in the same direction, which is also a general principle of market-safe lighting arrangements. Safety lighting in the shed market can also be used with discharge luminaires, provided that, after extinguishing, restart for no more than 15 seconds.
The minimum illumination to be observed for safety lighting should be no less than 5 lumens per square meter (lm/m2). This value is equivalent to an average power of incandescent lamps of 0.5 w/m 2 , that is, the luminous efficiency of an incandescent lamp is 10 (lm/w). In the case of higher luminous efficiency (such as with fluorescent lamps), the power can be reduced proportionally.
Ambient lighting requires uniformity across the entire surface. To achieve this requirement, the maximum distance between two adjacent lighting fixtures and their maximum height from the ground should be less than or equal to 4. Due to central power supply The incandescent lamp has a power of at least 15w.
The lampholders, fixtures and shields of incandescent lamps, as well as the terminals of the luminaires, shall meet the requirements for the determination of the illuminating filaments in the standard EN 60-695-2-1-1 (UTE et al.: NFC 20-92-1). The temperature of the filament is usually 850 ° C, the filament is extinguished in the hallway or corridor after 5 seconds of power failure, the distance between the lamps is not more than 15m, and must be located not accessible to the user (eg, should not be in the channel) A protrusion is formed on the net section, or the bottom of the lamp is at least 2.25 m above the ground).
In addition, the layout of the safety lighting should be kept away from the heat source. However, in the absence of the user, (the public building is closed to the user) the lighting is in a state of rest.
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