An electrical power transmission device has a phase conductor and an encasing conductor. Use of a polytetrafluoroethylene coating for making impermeable parts of a motor vehicle on the fuel system, in order to limit the emission of hydrocarbons through these parts. The actuator is mounted to one of the jaws, and the operative pressurized air is fed to and removed from the actuator via fluid delivery lines which are located within the interior of the jaw to which the actuator is mounted. A whitening filter is applied to the received signal in accordance with the conditional whitening-filter settings.