The disclosure relates to a construction machine with a paving screed to install a road surface, whereby the construction machine is a self-propelled road paver and comprises at least one power line for power supply of at least one electric consumer of the paving screed and whereby the construction machine contains a network for data transmission between at least one sender integrated in the network and at least one receiver integrated in the network. Furthermore, according to the disclosure, at least one section of the power line is integrated in the network and configured for data transmission between the sender and the receiver.