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The basic content of insurance is also called Fuse What fuse what its role is ? Fuse is also known as a fuse , IEC127 standards will define it as " fuse body (fuse-link)". It is an installation in a circuit , the electrical components to ensure safe operation of the circuit . The role of the fuse is: When the circuit failure or abnormal , along with current rising and rising current may damage some of the important components in the circuit or valuable devices , there may even cause a fire burned circuit . If the circuit fuse correctly placed , then the fuse will be in the current exception is raised to a certain height and a certain amount of time, their fuse cut off the current , and thus play a role in the safe operation of the protection circuit . The first fuse was invented by Thomas Edison 100 years ago , because of the industrial technology developed incandescent very expensive , so it was originally used to protect expensive incandescent . Fuse works is like? We all know that when current flows through a conductor , a conductor because there is a certain resistance , so the conductor will generate heat . And heat followed the formula : Q = 0.24I2RT; wherein Q is the calorific value 0.24 is a constant , I is the current flowing through the conductors , R is the resistance of the conductor , T is the time the current flowing through the conductor ; so formula we can see that fuse a simple working principle .
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