The entire Devonport peninsula was without power earlier this week. It was initially estimated to be restored at 10:30am but this was later amended to 12:30. Full power was restored at 12:11pm, although some areas of central Devonport had regained their power before this.
This is the second time in a month that Devonport has experienced a major power outage. Vector confirmed the problems started at 08:13am, in the middle of a heavy rainstorm that it said might have been part of the problem.
Minor damage to insulators caused by the previous outage could have been responsible for causing arcing that was seen outside the Naval Base during the heavy rain, with the almost solid rain providing an arc route from one damaged insulator to another line. The arcing then triggered an automatic shutdown of the local network.
Vector estimated around 2006 households were affected across the Devonport peninsula. At 9:30, power to all except around 500 households was restored, with the final restoration occurring at 12:11.