Patent ID: 7529073
Filing Date: 2009-05-05
Classification: H01R,H04B

Abstract:
1. A method for protecting loads associated with power distribution system inductive signal couplers, the method comprising: providing an inductive signal coupler having a first winding in series with a line conductor of a power distribution system, and a second winding having first and second connection terminals; connecting a first terminal of a first fuse to said first connection terminal, and a first terminal of a second fuse to said second connection terminal, a second terminal of each fuse being connected to a communication device; connecting a first terminal of a first choke to said second terminal of said first fuse, and a first terminal of a second choke to said second terminal of said second fuse; and connecting a second terminal of each choke to an electrical ground, wherein said first choke is a wire wound choke capable of conducting a transient current of 10,000 amps, and wherein, in a case of a power surge on said second winding, said first fuse and said first choke provide a path to said electrical ground for a surge current.