Patent ID: 8749928

Claim:
A ground-fault-interruption device for an aircraft electrical appliance, said ground-fault-interruption device comprising: a source-power-line connection for connection to a power line of an onboard power source, an appliance-power-lead connection for connection to the power lead of the electrical element, an appliance-return-lead connection for connection to the return lead of the electrical element, a source-return-line connection for connection to a return line of the onboard power source, and a GFI circuit comprising: a current differential determiner that determines the current differential between the source-power-line connection and source-return-line connection, a trigger that is activated upon the current differential corresponding to ground-fault situation, and an interrupter that interrupts power supply through the appliance-power-lead connection upon the trigger being activated; wherein the GFI circuit is electrically independent of electrical controller components of the appliance; wherein the interrupter comprises components that simulate a sufficient panel temperature to a controller.