Overload detection for electrical wiring
View Patent ↗A method includes sensing by multiple overload detection sensors connected to a power cord, a type of overload detection. The type of overload detection includes: thermal detection, voltage drop detection, and current reading detection. The method further includes powering the overload detection sensors from a same power supply as the electrical power cord by direct wiring or inductive coupling. An overload detection is triggered by one or more actionable events including: a ground fault circuit interrupter (GFCI) trip, a visual signal, an audible alarm, radio frequency identification (RFID) communication signaling, a wired or wireless communication.
1. A method comprising:
sensing, by multiple overload detection sensors coupled to a power cord, a type of overload detection, wherein the type of overload detection comprises one or more of: thermal detection, voltage drop detection, and current reading detection,
powering the overload detection sensors from a same power supply as the power cord by direct wiring or inductive coupling;
for a thermal detection type of overload detection, sensing by the multiple overload detection sensors within insulation of the power cord, wherein the multiple overload detection sensors comprise thermal sensors configured to detect an overload upon sensing a temperature in excess of a thermal rating for the insulation of the power cord;
for a voltage drop detection type of overload detection, sensing by the multiple overload detection sensors across power supply lines, wherein the multiple overload detection sensors comprise voltage drop sensors that perform:
communicating signals on the power supply lines, via separate wires, or wirelessly for measuring and comparing voltage readings;
determining a maximum predetermined voltage drop based on a rated supply voltage and current handling capabilities of the power cord; and
detecting an overload upon a voltage drop occurring in excess of the maximum predetermined voltage drop; and
for a current reading detection type of overload detection, sensing by the multiple overload detection sensors across power supply lines or in individual sockets in the power cord, wherein the multiple overload detection sensors comprise current reading sensors that perform detecting an overload based on current reading exceeding a predetermined current threshold; and
triggering overload detection by one or more actionable events powered by the power cord, the actionable events comprising: a ground fault circuit interrupter (GFCI) trip, a visual signal, an audible alarm, radio frequency identification (RFID) communication signaling, a wired or wireless communication.