China Emergency Light Description - Fire emergency lighting system mainly includes accident emergency lighting, emergency exit signs and indicator lights. It is set up after the normal lighting power supply is blocked in the event of a fire, guiding the trapped personnel to spread or opening the fire fighting and rescue behavior. However, in the usual inspections, the unit found many problems in the selection, equipment and operation of fire emergency lighting fixtures. In response to this, a reasonable choice of emergency lighting system power supply control methods, wiring methods, and a good maintenance mission, directly affect the role of fire emergency lighting system.
China Emergency Light indicates a reasonable choice of emergency lighting system power supply control measures
The emergency lighting system used at that time in China is mainly controlled by its own power supply. The normal power supply is connected to the general lighting power supply circuit. The emergency light battery is charged normally. When the normal power supply is blocked, the backup power supply (battery) is automatically powered. The emergency light of this method has many electronic components such as transformer, voltage regulator, charging, inverter, battery, etc. inside the lamp. The battery needs to be charged and discharged when the emergency lamp is used, repaired or defective.
The other is the rendezvous power rendezvous control type. There is no independent power supply in the emergency luminaire. When the normal lighting power supply is shortcoming, it is powered by the rendezvous power supply system. In the emergency lighting system of this method, the messy electronic circuits inside all the lamps are omitted, and the emergency lighting fixtures are the same as the general lamps, and the power supply system is set in a dedicated room.
Compared with the self-contained power supply independent control type emergency luminaire, the rendezvous power rendezvous control type emergency lamp has the advantages of convenient meeting, user self-examination, fire supervision and inspection, extension of lamp life, forward emergency dispersal efficiency, etc. The system reliability is good and the service life is good. The length, maintenance and handling of the convenience, the system cost is low. However, the rendezvous power supply meets the control type emergency luminaire. Since there is no backup power supply (battery) in each emergency luminaire, if the power supply line has shortcomings, it will directly affect the normal operation of the emergency lighting system, so it has special fire protection requirements for its power supply line. . The self-contained power supply independent control type emergency luminaire has a standby power supply (battery) in each emergency luminaire, so there is no special request for the power supply line, and the shortcoming of the power supply line does not affect the standby power supply.
When the emergency light has a shortcoming, it generally only affects the lamp itself, and has little effect on the whole system.
China Emergency Light believe that when selecting emergency lighting, the emergency lighting system should be reasonably selected according to the specific situation.