民用飞机线束主通道规划设计

摘要

According to CCAR25,different kinds of EWIS should be separated to ensure the continuing safe operation. Therefore, the route code, which represents wires of different EMC type, redundant wires, wires from independent power sources and special systems was designed. When projecting the route layout on aircraft, EWIS of different route code, the structure, the hydraulic and pneumatic pipelines as well as the lfight control system should be physically separated. Thereby, the separation requirements can be achieved.%综合中国民用航空规章25部对于电气线路互联系统（EWIS）的隔离要求，提出了民用飞机EWIS主通道的规划设计方法。以某型飞机供配电系统为例，通过将导线按电磁兼容类别、余度功能、独立电源以及特殊系统线路进行分类，编制导线敷设的通道代码，并在规划线束通道时，将不同类别线束、线束与结构、管路、操纵钢索等按照一定的距离进行隔离，在不满足隔离距离的情况下，通过施加隔离保护装置的措施进行等效隔离，完成线束主通道在机上的布局，从而实现EWIS的隔离。