When a fuse housing must interrupt an arc, designers choose between three material families: a synthetic arc-quenching composite liner, vulcanized fiber composite tube, and epoxy filament-wound tube. Each has a different balance of performance and cost. This article compares them on the metrics that decide total cost, not just the […]
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The vulcanized fiber and fiberglass composite tube, called tubo portafusible or tubo combinado en fibra vulcanizada in Spanish and tubo porta-fusível in Portuguese, is the arc-quenching liner used in expulsion fuse tubes that interrupt high-voltage AC circuits during faults. Buyers across Latin America and Brazil search for it under these […]
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Two insulating tubes are often compared for motor and transformer service: the spiral or convolute wound kraft paper tube and the vulcanized fiber (hardened fiber) tube. They look similar in a catalog but are made very differently, and that difference decides where each one belongs. How Each Tube Is Made […]
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Epoxy glass fiber wound pipe and epoxy glass canvas (cloth) tube are both epoxy fiberglass insulators, but the construction method and properties differ. This article compares them across the properties that decide a specification, so you can choose the right tube for electronics, electrical, or mechanical duty. How the Two […]
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Fuse tube production splits into three voltage classes: high-voltage, medium-voltage, and low-voltage fuse tubes. All of them must have arc-extinguishing characteristics. This article walks through how a vulcanized fiber fuse tube and a melamine tube are made, so you understand what you are buying. The Three Voltage Classes and What […]
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