The power cable plays a key role in urban power supply system

and the cable bank well provides a channel for the cable placement. In the daily operation process

the power cable body or intermediate joint will overheat

and there will be overhigh temperature of cable bank well environment and overhigh water level

and a large number of abnormal smoke and illegal invasion and other phenomena also threaten the stability of cable power supply system. A set of intelligent monitoring system for 110 k V cable bank well is introduced

including intelligent sensing system

monitoring host system and online monitoring terminal system. Firstly

the sensing system composed of multi intelligent sensors is introduced. Through the wireless communication between Lo Ra technology and the monitoring host in the well

it is determined by data calculation and experimental test that the system can meet the long-term endurance requirements by relying on batteries. Then

the multi-functional background remote monitoring terminal system is introduced. The background system is based on NB-lo T technology of the Internet of things to connect the remote monitoring host wirelessly. The system is applied to the drainage well system

which can sense the health status of the system in real time

and greatly facilitate the operation and maintenance personnel to find faults in time and deal with them in time. It is of great significance to ensure the safe operation of power cables and improve the reliability of power supply.