The research of Lightning Protect for aerocraft electro-equipments

The safety of the aircraft severely affected by lightning, lightning protection is the electro-equipment of aircraft need to be resolved a problem. In this paper,based on the the lightning induced transient susceptibility requirements of RATC/DO 160F,lightning induced pin injection test as an example, introduced the product interface circuit protection method. According to the signal characteristics of the signal transmission line and lightning induction test level, select the appropriate lightning protection devices; for the circuit´s input and output ports, using a variety of protection circuits, the effectiveness of the protection circuit verified by comparing simulation and experiment result.