民用飞机应急出口标志双供电设计

民用飞机上的应急出口标志,主要用于在飞机应急着陆后为机上乘客和机组人员的应急撤离提供指示,使其能看清飞机应急出口的位置。目前民用飞机应急出口标志主要采用单供电方式,该供电方式对应急照明电源的布置有较大的限制,并且会增加应急照明电源的维护成本。提出了一种全新的应急出口标志双供电设计方法,并详细介绍了其设计原理。该双供电设计方法可降低对应急照明电源布置的限制,并降低应急照明电源的维护成本,适用于现代民用飞机应急照明系统的设计,并为民用飞机应急出口标志的设计提供了重要的指导意义。

Double Power Supply Design of Emergency Exit Sign for Civil Aircraft

The emergency exit sign on civil aircraft is for the passengers and flight-crew to find the exit when the aircraft needs to take an emergency landing. At present, emergency exit signs on civil aircraft use single power supply mostly which limits the location of the emergency power supply and increases the maintenance cost. This article presents a new double power supply method to emergency exit sign and introduces the design theory in detail. The double power supply method can reduce the location limit of the emergency power supply and improve the airworthiness. The method can provide guidance for the design of emergency exit sign on civil aircraft.