US PATENT SUBCLASS 361 / 50
.~.~.~ With more than two wires

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

1  DF  SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32}
42  DF  .~ Ground fault protection {5}
49  DF  .~.~ In a single phase system {1}
50.~.~.~ With more than two wires

DEFINITION

Classification: 361/50

With more than two wires:

(under subclass 49) Subject matter wherein the load in a single phase system with more than two wires is protected from an unintentional grounding, usually be removing the power from the load when a ground fault is detected by a sensing means.