Experimental study on fireproof properties of aviation cables

Abstract This study investigates the fire protection capability of Engine Wiring Interconnection System (EWIS) components, focusing on the performance of typical aviation cables under fire conditions. Using an oil burner to simulate fire environments, key parameters such as flame resistance, insulation resistance, and leakage current were monitored. The results show that shielded cables exhibit up to 35% higher leakage currents compared to unshielded cables under identical conditions, indicating a higher propensity for insulation breakdown and short circuits. These findings provide theoretical support for improving fire protection designs in aviation cable components.