How was the energy of the arc managed in high-voltage fuses to extinguish it rapidly?

Answer

By embedding the fusible link within an insulating medium like sand or specialized fillers

The solution for high-voltage protection involved placing the fusible link inside a substance, often sand, which absorbed the energy of the arc created upon vaporization and rapidly extinguished it.

How was the energy of the arc managed in high-voltage fuses to extinguish it rapidly?
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