glass fuse holder price.Working principle of ordinary fuses

　　When determining the material and shape of a fuse, its resistance R is relatively certain (regardless of its resistance temperature coefficient). When an electric current flows through it, it will heat up, and as time increases, the heat will also increase. The current and resistance determine the speed of heating, while the structure and installation of the fuse determine the speed of heat dissipation. If the speed of heating is less than the speed of heat dissipation, the fuse will not blow. If the rate of heat generation is equal to the rate of heat dissipation, it will not melt for a considerable period of time. If the heat generated is greater than the heat dissipated, more and more heat will be generated. Due to its certain specific heat and mass, the increase in heat is manifested as an increase in temperature. When the temperature rises above the melting point of the fuse, the fuse will melt. That's how fuses work. We should know from this principle that when designing and manufacturing fuses, you must carefully study the physical properties of the materials you choose and ensure that they have consistent geometric dimensions. Because these factors play an important role in the normal operation of fuses. Similarly, when using it, please ensure that it is installed correctly.

　　When current flows through a conductor, the conductor will generate heat due to its resistance. The calorific value follows the formula: Q ≤ 0.24I2RT, where Q is the calorific value, 0.24 is a constant, I is the current flowing through the conductor, R is the resistance of the conductor, and T is the time when the current flows through the conductor. According to this formula, it is not difficult to see the simple working principle of the fuse.

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