Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent
1995-08-31
1997-06-24
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
361 45, 361115, H02H 300
Patent
active
056422482
ABSTRACT:
An electrical extension cord with built-in safety protection includes an electrical cable formed with insulated phase, neutral and ground conductors surrounded by a braided sensing shield. An electrical receptacle is electrically connected to the cable at first ends of each of the phase, neutral and ground conductors, and the shield is electrically connected to the ground conductor. A ground fault circuit interrupter (GFCI) is electrically connected to the cable at second ends of the phase, neutral and ground conductors, within which the ground conductor is electrically coupled to the shield through a predetermined impedance such that leakage current is collected by the shield and detected by the GFCI.
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Campolo Steven
Rosenbaum Saul
Gaffin Jeffrey A.
Jackson Stephen
Sutton Paul J.
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