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PLUG-TYPE FUSE
TIME DELAY RATING

Neets Module 03-Introduction to Circuit Protection, Control, and Measurement
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2-7 Figure 2-5 shows a glass-tube fuse. In figure 2-5, view A, notice the fuse link and the metal ferrules. Figure 2-5, view B, shows a glass-tube fuse that is open. The open fuse link could appear either of the ways shown in figure 2-5, view B. Figure 2-5.—Cartridge-tube fuse. Cartridge fuses are available in a variety of physical sizes and are used in many different circuit applications. They can be rated at voltages up to 10,000 volts and have current ratings of from 1/500 (.002) ampere to 800 amperes. Cartridge fuses may also be used to protect against excessive heat and open at temperatures of from 165 F to 410F (74C to 210C). Q9.   Label the fuses shown in figure 2-6 according to type. Q10.   Identify the open fuses shown in figure 2-6. Figure 2-6.—Fuse recognition.






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