| 摘要 |
Process and apparatus for detecting electrical phase to ground or phase to phase fault currents occuring in enclosures retaining electric switch gear, switchboards, panel boards, and the like providing ionization chamber sensing of the particulate and/or ionized matter generated by the electrical fault, and generating a signal as a result of the parameter. The signal is transmitted to a means for opening the circuit and the circuit is opened to stop further current flow and damage to the devices to which it is connected. Audio or visual alarms as well as sensor status readouts may also be used with the invention.
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