What does the BUS TIE switch do when short circuit is detected?

Study for the Dassault Falcon 7X Test. Access flashcards and multiple choice questions with hints and explanations to boost your exam confidence.

The function of the BUS TIE switch, when a short circuit is detected, is to automatically untie the buses. This occurs as part of the aircraft's electrical protection strategy to isolate faulty components and prevent further damage or safety hazards that could arise from a short circuit. By automatically untying the buses, the system ensures that the electrical faults do not affect the other operational systems on board. This protective measure helps to maintain the integrity of the aircraft's electrical system and ensures the safety of the aircraft and its occupants.

In this context, other choices do not align with the primary purpose of the BUS TIE switch. Locking systems for security would not address the immediate need for electrical safety. Tying together all main buses in the presence of a short circuit would exacerbate the problem, potentially endangering vital aircraft systems. Signaling an alarm in the cockpit, while an important safety feature, does not address the functional response to a short circuit, which is to isolate the issue through the untie operation.

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