Cable joint monitoring method

The invention discloses a cable joint monitoring method, and relates to the technical field of power equipment. The cable joint monitoring method comprises the following steps: acquiring the real-time current of a circuit in a switch cabinet, the environment temperature in the switch cabinet and the actual temperature of the outer edge of a cable joint; calculating the theoretical temperature of the outer edge of the cable joint according to the real-time current and the environment temperature; and comparing the actual temperature with the theoretical temperature, if the actual temperature is greater than the theoretical temperature, judging that the contact between the cable and the cable joint is poor, and if the actual temperature is less than or equal to the theoretical temperature, judging that the contact between the cable and the cable joint is good. Compared with the prior art, the cable joint monitoring method provided by the invention has the advantages that the step of comparing the actual tempera