摘要
Abstract
The four ignition sources, which are electrical arcs and sparks, iflament heating, friction sparks, and hot surface ignition or auto-ignition, of civil aircraft fuel tank were introduced. The ignition sources related to EWIS were analyzed. The design features of EWIS resulting in degradation of fuel tank safety, which are fuel pump wiring, intrinsical y safe wiring and higher energy wiring, were summarized. Basic rules of EWIS routing were raised. The accepted EWIS design practices for minimizing ignition sources were provided in the aspect of EWIS routing, EWIS separation and utilization of transient suppressor can give suggestions for EWIS design in fuel tank.关键词
民用飞机/电气线路互联系统/燃油箱/点火源防护Key words
civil aircraft/EWIS/fuel tank/ignition source prevention分类
航空航天
