Patent ID: 8064174

Claim:
A circuit for disconnecting a power source upon the detection of a leakage current, comprising: a leakage current circuit comprising a disconnect switch; a power cable connected to the power source though said disconnect switch; said power cable consisting of: a. a first insulated wire and a second insulated wire; b. an insulated ground wire; c. a conductive shield surrounding all of said first and second insulated wires and said insulated ground wire; d. a drain wire having a first and a second portion with said first portion of said drain wire being in contact with said conductive shield; and e. an outer insulating layer disposed about said conductive shield and said first portion of said drain wire; and a conductor connecting said second portion of said drain wire to said leakage current circuit for opening said disconnect switch upon said leakage current circuit sensing a leakage current between said conductive shield and one of said first and second insulated wires and said insulated ground wire to disconnect said power cable from the power source.