A method for transmitting data via a traction current conductor which
simultaneously conducts drive current for a vehicle and in which an
interruption in the data transmission by an arc cccurring between a
vehicle-end drive current collector and the traction current conductor is
reliably avoided. The method for trandsmitting data via a traction current
conductor, in which at the transmitter end at least two data signals
including in each case the data in an identical form are fed into the
traction current conductor with different frequency channels. In the event
of an arc occurring at the receive end, the received data of that data
signal or those data signals whose amplitude does not drop below a ratio
necessary for achieving a specific bit error probability with respect to
the amplitude of the interference signal S(f), is selected for evaluation.
