Power supply cable assembly

The utility model discloses a power supply cable assembly. The device comprises a first power supply input cable, a second power supply input cable, an output cable and a cable combination control circuit, the cable combination control circuit is electrically connected with the first power supply input cable, the second power supply input cable and the output cable. And according to the power supply voltage of the first power supply input cable and the power supply voltage of the second power supply input cable, selecting the power supply current of at least one of the first power supply inputcable and the second power supply input cable to be transmitted by the output cable. According to the utility model, when the battery runs out, a new battery or a power supply is replaced; power-offshutdown of the equipment does not need to be executed; stable operation of electric equipment is ensured, interruption of service provided by the equipment is avoided, smooth switching of high voltage and low voltage of a loa