A system for diagnosing integrity of an electrical conductor-carrying system can include an electrical conductor-carrying network having a number of electrical conductor-carrying devices mechanically coupled to each other, where at least a portion of the electrical conductor-carrying network is made of electrically conductive material. The system can also include a number of sensor modules coupled to the electrical conductor-carrying network. The system can further include a control unit communicably coupled to the sensor modules. The sensor modules can measure at least one impedance in the electrical conductor-carrying devices of the electrical conductor-carrying network.