The fuse is mainly composed of melt, fuse tube, filler, cover plate, terminal, indicator and base. The high-voltage fuse is composed of a metal melt (fuse), a contact, an arc extinguishing device (fuse tube), and an insulating base.
▲High-voltage fuse structure
(1) Fuse link
Including the melt, it acts as a conduction circuit during normal operation. In the event of a fault, the melt will melt first, thereby cutting off the circuit to protect other equipment. ...
The fusing time of the fuse melt is related to the material of the melt and the size of the fusing current. The relationship between the fusing time and the current is called the ampere-second characteristic of the fuse, and also called the protection characteristic of the fuse.
(2) Fuse carrying fuse
Used to install and dismantle the melt, usually in the form of contacts.
(3) Fuse base
Used to realize the insulation and fixation of each conductive part. To
(4) Melt pipe
Used to place the melt, limit the burning range of the melt arc, and extinguish the arc. To
(5) Filling
Generally, solid quartz sand is used for cooling and extinguishing the arc.
(6) Fuse indicator
Used to reflect the state of the melt, that is, intact or fused.
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