a hydraulic arrangement is provided with at least one pressure accumulator for a hydraulic fluid , a hydraulic cylinder with at least one chamber to which pressure can be applied , a connecting line , on the basis of which the at least one accumulator is connected with the chamber , and a control unit . in order to provide an electronic pipe break safety device , an electronically controlled on - off valve is mounted in the connecting line and coupled for receiving control signals from the control unit , and a signal transmitter , which is coupled for monitoring the pressure in the connecting line is also connected to the control unit . if a pressure drop occurs in the connecting line , a signal change is generated by means of the signal transmitter , whereupon the control unit sends a signal effecting movement of the shut - off valve to its closed position .