Patent ID: 8503137

Claim:
A multiphase power distribution system comprising: a source, and load, interconnected by a multiphase line; an arc detector for detecting arcing proximate a load; a first plurality of switches, each having a pair of contacts in series with one phase of a multiphase line between said source and said load; a plurality of impedances, one of a plurality of impedances in parallel with each of a first plurality of switches interconnecting its pair of contacts, to provide a high impedance path between its pair of contacts when opened; a second plurality of switches, one of said second plurality of switches in series with each of said phases of said multiphase line between said source and said load, said arc detector in communication with and said first plurality of switches to open said first plurality of switches in response to said arc detector detecting arcing proximate said load, thereby inserting a high impedance path between said source and said load, and said second plurality of switches to disconnect said source from said load in response to said arc detector detecting arcing proximate said load.