This paper reviews the state-of-the-art of electrical protections for aeronautic applications, identifying the current status and progress, their drawbacks and limitations, the future challenges and research needs to fulfill the future requirements of MEAs, with a special emphasis. This paper reviews the state-of-the-art of electrical protections for aeronautic applications, identifying the current status and progress, their drawbacks and limitations, the future challenges and research needs to fulfill the future requirements of MEAs, with a special emphasis. A jetliner is struck by lightning at least once every 1,000 flying hours while safely transporting passengers and crew to their destination. Within its thin metal and composite shell, tens of thousands of sensitive semiconductor chips are performing critical functions, from navigation to jet engine. This work performs a critical and comprehensive review concerning arc tracking effects in wiring insulation systems, underlying mechanisms, role of materials and possible mitigation strategies, with a special focus on aircraft applications. To this end an evaluation of the scientific and. Lightning Transient Suppression Circuit Design for Avionics Equipment Presented by: Clay McCreary Outline • • • • • Background Design Challenges Design Technique Summary Applicable Waveform Equations Current Calculation Outline • • • • • • Series Resistor MOV/GDT TVS Trace Size Example. Airborne electronic devices are susceptible to lightning attacks during aerial operation, which can affect signal transmission and collection, and even lead to damage to airborne electronic devices, affecting flight safety. In response. Abstract— Arc faults are serious discharges, damaging insulation systems and triggering electrical fires. This is a transversal topic, affecting from residential to aeronautic applications.