Detection of electric discharges that precede fires in electrical wiring

A system for detecting hazardous electrical discharge activity in electrical wiring, the system comprising:

• one or more sensor devices coupled to a circuit, each sensor device configured to sense a multiple voltage cycle waveform generated by electrical activity on the circuit or on nearby branch circuits;
• and
• a computing device coupled to the one or more sensor devices, the computing device configured to:
• apply a plurality of specialized hazard detection models to waveform data generated by the one or more sensor devices, each specialized hazard detection model generating a probability score for a distinct category of hazardous electrical activity;
• generate a composite threat score for each of the one or more sensor devices based upon the probability scores;
• and
• generate one or more alert signals when the composite threat score for a sensor device meets or exceeds a configurable threshold.