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 198
Figure 124 Figure 125 have at least four supporting screws. Holes for supportingscrews must be kept outside of the area included by the out-side edges of the fuse-block terminals, and must be so locatedor countersunk that there will be at least one-half an inch 196 MODERN ELECTRICAL CONSTRUCTION.…
Electrical engineering
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