An aircraft electrical appliance is provided with a ground-fault-interruption device for protecting it in the event of problematic current loss due to, for example, a compromise in electrical insulation. The tool support is fastened in a machine holder. The current-source drive circuit provides both a high impedance as well as variability. Further, the arsenic compounds may be used to treat metastatic neoplastic diseases. Fully extended and connected, the individual sections perform as a large, continuous inductive element capable of generating very high voltages at the top of the tower for use in testing equipment and producing long electrical discharges.