Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 197
and those in which a cur-rent of a given strength melts or fuses a piece of wireor foil. The best material for a fuse is tin, because it isvery durable, and melts at so low a temperature. 2359 C,that it cannot kindle a fire. The fuse must be longenough so that the heat generated in it by the… … Fig. 79. ELECTRICAL ENGINEERING 195 The fuse is generally placed within, or at least mountedon, glazed porcelain so as to avoid any danger from themelted metal. For heavy currents a number of small fusesin parallel are frequently used. In spite of every precaution,a fuse is necessarily always a…
Electrical engineering
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