| Fuse Technology
Control of energy When a short circuit fault current is interrupted, a large amount of energy is released. This energy can either be contained within the body of the protective device or be released to the environment. The latter is easier for the design of the protection device, but needs care in the design of the device enclosure. The ionized gas emission can result in reignition of the short circuit fault upstream of the protection device. Moreover the attendant pressure peak can cause a spontaneous opening of frontcovers of a switchboard. With a fuse, the energy is absorbed by the granulated quartz inside its body. It is trapped in the fuse cartridge thus eliminating potential external problems.
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