Excerpt from Conductors for Electrical Distribution: Their Materials and Manufacture, the Calculation of Circuits, Pole-Line Construction, Underground Working, and Other Uses
This book represents the results of over ten years of work as a manufacturer of insulated wires and cables, as an engineer advising concerning their installation and finally as a teacher of Electrical Engineering.
Over eight years has been consumed in actually writing and revising, and yet it is with hesitation that it is finally passed to the printer, for the writer well realizes its many deficiencies, but finally despairs at completing the whole task of writing up to the present condition of a rapidly moving art.
Through the courtesy of Mr. Fred Deland the original rough cast has been published in Electrical Engineering, and though the last chapter appeared there three years ago, the writer has been encouraged in making a final revision and presenting the whole as a book to his brother engineers, through the belief that by the previous publication he has been enabled to eliminate from its pages descriptions of materials and methods that are not founded on safe engineering principles.
In all of the task of preparation for the press the writer has had much aid from his pupil and friend, Mr. F. V. T. Lee, and he must also acknowledge great indebtedness in the preparations of the chapter on Alternating Current Distribution to another pupil and co-worker, Mr. F. G. Baum.
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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. Это и многое другое вы найдете в книге Conductors for Electrical Distribution (F. A. C. Perrine)