Electric installation is tested outward to cabinet
The utility model relates to an electric installation is tested outward to cabinet, include: sensor, amplifier circuit and alarm unit. The sensor can be responded to supply circuit and form induced -current, sensor intercommunication amplifier circuit's input, alarm unit intercommunication ampl...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model relates to an electric installation is tested outward to cabinet, include: sensor, amplifier circuit and alarm unit. The sensor can be responded to supply circuit and form induced -current, sensor intercommunication amplifier circuit's input, alarm unit intercommunication amplifier circuit's load end. Carry out non -contact outside this electric installation is tested outward to cabinet can put formula high tension switchgear cable chamber observation window in and test the electricity, improve the accuracy of testing electric result through sound and light warning signal, avoid the person and equipment accident that the erroneous judgement causes. |
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