Excerpt from Electric Lighting, Vol. 2: A Practical Exposition of the Art, for the Use of Engineers, Students and Others Interested in the Installation or Operation of Electrical Plants IN presenting this second volume on the subject of Electric Lighting, attention is called to the fact that it relates to the conductors for transmitting and distributing the current, commonly called the distribution system, to the lamps, the supply of which is the final object of the entire system, and to the various auxiliary devices, such as switches, cut-outs, meters, etc., employed in con nection with the same. In short, the present volume covers all parts of electric lighting systems outside of the generating plants, the first volume being devoted to the latter. The properties of conductors and various systems of electrical distribution, including direct current, as well as single and polyphase currents, occupy the first half of the book. Overhead and underground conductors are next discussed, and then arc lamps are treated in considerable detail, since they are important features in electric lighting, and have not been very fully treated in other publications. Interior wiring, incandescent and other forms of lamps, and finally electric meters are given considerable attention. An appendix, containing the National Electrical Code, and another the Report of the Com mittee on Standardization are included, these being the rules which must, or at least should be, followed in constructing or operating any electrical system. In treating each branch of the subject, the principles have first been given with considerable fullness, being followed by practical examples of the prominent methods and forms of apparatus employed in actual practice. In the space available it has been impossible to go deeply into any subject, but the attempt has been made to cover the important elements and their relation, so that they may be understood and used success fully. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.