Modern electrical construction; a reliable, practical guide for the beginner in electrical construction, showing the latest approved methods of installing work of all kinds according to the safety rules of the National board of fire underwriters (1905)
Horstmann, Henry C[harles], 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. J. Drake & Co. · leaf 119
n use, andis an effective means of disconnecting a building when cur-rent is no longer used. This can also be accomplished bymeans of the service switch, but a switchis so easily closed by anyone that it mustnever be relied upon entirely for thispurpose. Figure 61 shows arrangement of fusesand… … CONSTANT POTENTIAL SYSTEMS. 117 where a change is made in the size of wire [unless the cut-out in the larger wire will protect the smaller (see No. 61)]. Figure 62, A to D, shows systems of distribution and ar-rangement of mains in general use. Figure A shows thesimplest and cheapest method of…
Electrical engineering
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