Publisher's Synopsis
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1893 edition. Excerpt: ...the fuse will melt. But should the resistance of the moisture be far greater than that of the fuse wire, the decomposition of the wire will gradually be accomplished, and as it advances, the heat, and loss of electrical energy in the conductors increases, the lights become dimmer, and the carrying capacity of the wire decreases, to the point where it melts instead of the fuse wire in the cut-out. In other instances, the wire will be so decomposed and so thin that at a certain point it is as fine and sharp as an ordinary needle, and a slight vibration Figs. 1, 2 and 3.--Electrolysis. of the building will cause the wire to part and an arc to occur. 65. The foregoing proves the importance of properly fusing the circuits, and using only the best grade of materials. The best and most effective method of obviating the danger, is to use conduits, and high grade moisture-proof wires throughout, providing a separate tube for each wire, and excluding moisture at the joints, etc. CHAPTER XV. Adverse Wiring Conditions. 66. Where adverse conditions exists, such as moisture and gas, the best results have been obtained by stringing the wires, fastened to suitable insulators, on the face of the walls, etc. The insulators should be as few as possible. The fixtures and wires should be kept free from contact with the building. The cut-outs and switches should be located in a clean dry place, and to accomplish this, the length of the circuits must, if necessary, be increased. The fixture, if one is necessary, should consist of a metallic pipe, and the wiring of the fixture must be two heavily insulated wires. The end of the pipe toward the outlet should be closed by a cork, putty, or insulating compound. The socket and lamp should be enclosed in a...
