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Safety fuse resistor - with ceramic rod carrying resistor layer with spiral turns at one end only
Safety fuse resistor - with ceramic rod carrying resistor layer with spiral turns at one end only
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机译:安全保险丝电阻器-陶瓷棒带有电阻层,电阻层仅在一端具有螺旋线匝
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摘要
A safety fuse resistor for TV receivers is made from a rod-like carrier which supports a spiral resistance layer made of carbon, metal or metal oxide. The spiral shape of the layer is merely concentrated near one end of the rod. The resistos has a normal behaviour at nominal loads and normal lacquer can be applied without fear of overheating. Overloads cause a concentrated hot spot at the spiral end which evaporates and interrupts the circuit without producing an arc or red hot ceramics, to reduce possibility of fires.
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