A device used to open and close an electrical circuit. It can refer to a small current switch found in an ordinary household, but it usually refers to a low voltage blade switch or a high voltage oil-filled switch. The principle is simple, but there are many types, from manual to powered, depending on the purpose of use. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
電気回路の開閉に使う器具。一般家庭にみられる小電流用のスイッチをさすこともあるが,普通には低圧用の刃型開閉器,高圧用の油入開閉器をさす。原理は簡単であるが,使用目的によって,手動から動力を使用したものまで種類が多い。
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