Low-voltage fuse isolating switch
The utility model discloses a low-voltage fuse isolating switch, which comprises a box body (1), a multiphase knife switch consisting of a moving contact (2) and a static contact (3) and an operating handle (4). Each phase of circuit of the isolating switch is provided with a packing porcelain fuse...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a low-voltage fuse isolating switch, which comprises a box body (1), a multiphase knife switch consisting of a moving contact (2) and a static contact (3) and an operating handle (4). Each phase of circuit of the isolating switch is provided with a packing porcelain fuse (5). By adopting the technical scheme, the low-voltage fuse isolating switch can safely switch on and switch off a low-voltage load current and close a failure current, provides obvious switch-off point for the circuits and can be widely used for a rural-urban low-voltage line as a section switch and for a service entrance conductor of a building unit in a residence community as a first branch switch. The product is provided with a manual operating mechanism and an automatic short circuit failure display so as to greatly reduce failure rate, shorten rush-repair time, improve power supply reliability of the low-voltage line and promote efficiency and quality of power supply service. |
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