Method for providing electricity for at least one consumer device for connection to a bus device and ballast device for a consumer

摘要

The method involves coupling the bus device to a bus by two input terminals (22,23). One of the input terminal is arranged downstream a controllable current source. The current source provides current to a side assigned to the load and receives a bus current and a voltage from the side of the input terminals. A load separating device is provided for separating or deactivating a portion of the load. The separation and deactivation of the portion of the load takes place depending on the current intensity of the current source and load current intensity. An independent claim is included for a pre-switching unit for a load connected to a bus device.