Fuse is with melting point inferior material is made, electric current became big can calorific fusing, have insurance effect.
保险丝是用熔点较低的材料制作，电流大了会发热熔断，起到保险作用。
When the current through the fuse is 2 times of its specined electric current, fusing in an hour;
当通过熔断器的电流为其额定电流的2倍时， 1小时内熔断；
A fuse device is disclosed for automatically disconnecting an electric line at the occurrence of over-current condition.
公开了一种熔断器，用于在出现过电流情况下使电线自动断开。
A fuse device is disclosed for automatically disconnecting an electric line at the occurrence of over-current condition.
公开了一种熔断器，用于在出现过电流情况下使电线自动断开。
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