A floating fuse is an electrical safety device used to prevent unexpected power surges in gliding systems. It ensures that the power supply is automatically cut off when a certain threshold is exceeded, thereby protecting the system and its components from overload or short circuits. These fuses are essential for the safe and reliable operation of electronic and electrical equipment in gliding applications. They can be manually reset or replaced after the cause of the overload has been addressed, making them a reusable and low-maintenance component of the aviation electrical circuit system.