What Are The Functions Of Quartz Sand In High-voltage Fuses?

What are the functions of quartz sand in ht drop out fuse?

What are the functions of quartz sand in high-voltage fuses? Let the editor of the fuse manufacturer tell you!

We know that some high-voltage fuses are filled with quartz sand. Why is this? In fact, this is to enhance the arc extinguishing ability of high-voltage fuses.

Quartz sand is a hard, wear-resistant, chemically stable silicate mineral. Its main mineral component is SiO2, and its performance is high thermal conductivity and insulation. If the arc and quartz sand are in contact with a large area, it is conducive to absorbing the energy of the arc and allowing the arc to cool quickly. The quartz sand filling the high-voltage fuse is carefully selected and specially treated. In order to ensure the filling density and conductivity of the quartz sand, there are special equipment for filling.

AC high-voltage drop-out fuses are suitable for power systems with a rated voltage of 12kV and a rated frequency of 50Hz and 60Hz. They are used for short-circuit and overload protection of transmission and distribution lines and power transformers, as well as for separating and combining rated load currents.

We know that the main causes of high-voltage circuit breaker fires are overload of the melt, poor contact, improper current selection, or high-temperature metal particles splashing nearby. As long as we choose a high-voltage fuse filled with quartz sand, we can solve the problem of fires caused by high-voltage short-circuit breakers.