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US 2004/0070896 A1Published application
Electrical ground protection device and method
OwnerArthur A. Silvermaninventor
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OwnerArthur A. Silvermaninventor
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An apparatus and method for protecting against electrocution hazards that arise when an appliance is electrically connected to a miswired single-phase AC electrical source are described. Protection is provided against miswiring conditions that causes the putative ground line of the electrical source to be either electrically energized or to be electrically open. The apparatus includes one or more sensors that detect if the electrical source is miswired and operate one or more switches which preclude electrical continuity to one or more of the electrical lines of the appliance if a miswiring is detected. The method includes the steps of detecting if the putative ground of the electrical source is electrically energized, and if it is, then precluding electrical continuity between the putative ground of the electrical source and the ground of the appliance.
An electrical continuity preclusion apparatus comprising a first sensor and a first switch, wherein said first sensor detects the electrical condition of the putative ground line of a single-phase AC electrical source and causes said first switch to preclude electrical continuity between the putative ground line of said electrical source and the ground line of an appliance that is to be electrically supplied by said electrical source when said first sensor detects the putative ground line of said electrical source as being electrically energized.
The apparatus of claim 12, wherein said indicator comprises a plurality of display lights such that a combination of the on-off state of said display lights with each other indicates the wiring correctness of said electrical source.
A method for detecting an electrical miswiring condition in a single-phase AC electrical source that is to electrically supply an appliance, said method comprising steps of:
Dependencies are inferred from the claim text.