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Some knowledge about fire emergency lighting

Number of visits: Date:2016年10月7日 15:41

Common emergency lighting wiring has six kinds: the following to see the relevant matters to be noted:
1, there are fire control center project, in order to meet when the fire occurs, the fire control center to open fire and related fire emergency lighting requirements.
2, for multi-storey public buildings, if not set the fire control center, emergency lighting parts can be used with local switch control (single lamp control or light control) or the distribution box centralized control three line method.
3, emergency lighting should be used as part of the normal lighting should be controlled by three wire type.
4, the characteristics of various wiring methods to accurately grasp, so as to avoid blind wiring, can not play a role.
In addition to these considerations above, but also pay attention to the installation and maintenance of emergency lights:
1, in the engineering design, in order to facilitate the maintenance and management of the usual, fire emergency lighting is best to supply the special feeder circuit.
2, in order to ensure the fire emergency lighting power supply is reliable, has the condition by low voltage power supply of emergency bus line, when the diesel generator for emergency power, as long as the generator is put into use, it is to ensure the power supply of electricity.
3, in the state of fire, near the ground smoke less, more oxygen, the evacuation of the instinctive reaction is to bend or crawl forward, and thus the local high illumination than the high level installation of uniform illumination is more effective. So it should be advocated low installation, which is close to the ground or on the ground to provide emergency evacuation lighting.
4, emergency lights are discharged from the factory, before the use of 20 hours of charging, can be carried out.
5, the use of emergency lighting should be a regular performance checks, every half a month or a month through a continuous switch test to check the circuit conversion and battery emergency function, and to discharge, in order to extend the battery life.
6, do the fire protection of distribution line, concealed when laid in the non burning structure, the protective layer thickness of not less than 30mm; surface wear of metal tube, and the tube outside the brush fire retardant coating or by other fire prevention measures; the line adopts the fireproof fireproof cables, wire or cable.

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