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7.1.6 熔断器

7.1.6 熔断器. 熔断器是最简便且有效的短路保护电器。 其中的 熔片 或 熔丝 俗称 保险丝 ，常为电阻率较高的易熔合金或用截面积很小的良导体制成。. 线路在正常工作时，熔断器不应熔断；而当线路发生短路或严重过载时，熔断器应立即熔断。. (1) 电灯支线. 频繁起动，则. (2) 一台电动机. (3) 多台电动机. 常用规格有 4 、 6 、 10 、 15 、 20A 乃至数百安等。.

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7.1.6 熔断器

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  1. 7.1.6 熔断器 熔断器是最简便且有效的短路保护电器。其中的熔片或熔丝俗称保险丝，常为电阻率较高的易熔合金或用截面积很小的良导体制成。 线路在正常工作时，熔断器不应熔断；而当线路发生短路或严重过载时，熔断器应立即熔断。 (1) 电灯支线 频繁起动，则 (2)一台电动机 (3)多台电动机 常用规格有4、6、10、15、20A乃至数百安等。

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