Why are fuses made of glass tubes?

juyuandianzi

Why are fuses made of glass tubes? [Copy link]

Why should fuses be made of glass tubes? We all know that the structural characteristics of the circuit protection element fuse tube are generally cylindrical, with copper caps at both ends, a metal fuse welded in the middle, and the glass is vacuum treated inside, with good sealing. So why must glass tubes be used to make fuses, or ceramic tubes? Why don't we use metal or other lightweight materials? There are actually important reasons for choosing glass tubes or ceramic tubes. We have analyzed the main reasons. 1. Glass tubes are a type of non-metallic tubes with good performance and are relatively good insulating materials. 2. Compared with ordinary glass, it has no toxic side effects, and its mechanical properties, thermal stability, water resistance, alkali resistance, acid resistance, etc. 3. It is widely used in various fields such as chemical industry, aerospace, military, family, hospital, etc. 4. It has good promotion value and social benefits 5. Low cost 6. It is easy to observe the fuse fuse situation and convenient to replace the fuse. In summary, the glass tube is the only best choice for fuse tubes, and its emergence is both accidental and inevitable. Here we need to add some knowledge about ceramic fuses. The construction principle of ceramic fuses is actually the same as that of glass fuses, except that its material is ceramic. It is a relatively special manufacturing method. Ceramic fuses have special applications in some high-voltage environments, so its structure must be explosion-proof, and ceramics happen to be explosion-proof materials, so it is necessary to choose ceramic tube fuses. However, it has some disadvantages, such as it is not easy to observe the condition of the fuse, and the production cost is relatively high, so its use is also destined to be relatively narrow. This is also the reason why most electronic circuits currently use glass tube fuses as protection components! Source: Lanheng Electronics This content was originally created by EEWORLD forum user juyuandianzi. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source

幸运十一月

The analysis is really comprehensive! I'm enlightened. O(∩_∩)O Thank you for sharing.

幸运十一月

It is easy to make, cheap, easy to observe and replace. But it is easy to burst in the event of a short circuit.

凤凰息梧桐

I'm learning. Thanks for sharing.           

suzhouxinche

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