According to a California Power Commission statement, about 40% of all electrical outages are due to subversive failures that might raise as subversive cables deployed in the 1970s and early on 1980s near the finish of their working days, said Brendan Herron, present vice president of business improvement and policy.

By tradition, such failures had resulted in clients losing power for at most a couple of hours, as the service monitored grievance calls and deployed employees to check transformers in an attempt to recognize the location of the error, Herron said. By using current BPL arrangement and complex embedded sensing, the service can considerably reduce outage moment.

Refer:http://mrtmag.com/infrastructure/news/current-fault-detection-012307/