Power cable insulation monitoring device

The invention provides a power cable insulation monitoring device which comprises a lower shell, an extension shell, a grounding pile, a first contact frame, a second contact frame, a sealing strip, an upper shell, an electrical box, a sealing plate and an integrated circuit board. The whole body can be directly buried in the soil together with the cable, weak direct current generated by water tree aging in the cable and capacitance current in a grounding pile are collected, the insulation condition of the cable is monitored through the combination of a direct current component method and a grounding wire current method, and the degradation condition of an insulating medium of the cable can be monitored in real time. Moreover, the device can be installed at any position of the cable, and is independently provided with a grounding point, thereby achieving the monitoring of the insulation at any position of the cable according to the needs. 本发明提供一种电力电缆绝缘监测装置，包括下壳体、延伸壳体、接地桩、第一接触架、第二接触架、密封条、上壳体、电气箱、密封板和集成电路板，本发明能