To provide a protective earth switch capable of being restored easily and immediately in a state that a supply-current side and a grounding side are insulated regardless of hands of a worker even if a blade and a contactor are welded.
This protective earth switch 10 is equipped with the contactors 11, 12 installed at the other end of an insulator 4 and conducted to the supply-current side, the nearly rod-shaped blade 13 of which the base end is supported movably at the earth side and of which the chip 13b is movable from a waiting position A separated from the contactors 11, 12 up to a contact position B where the chip contacts with the contactors 11, 12, and a separating means 15 in which the blade 13 is forcibly separated from a state that the blade contacts with the contactors 11, 12 at a contact position B and that they are welded to each other.
WAGATSUMA TOORU
HASHIMOTO KATSUSHI
YAMADA ASAE
KIKUCHI HIROTAKA
JPS5772226A | 1982-05-06 | |||
JPS5722141U | 1982-02-04 | |||
JPH03100330U | 1991-10-21 | |||
JPH09326220A | 1997-12-16 | |||
JP2001250465A | 2001-09-14 | |||
JPH08149604A | 1996-06-07 | |||
JPS5772226A | 1982-05-06 | |||
JPH09198970A | 1997-07-31 | |||
JPS5890615U | 1983-06-20 | |||
JP2000340074A | 2000-12-08 | |||
JPH0620563A | 1994-01-28 |
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
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