Excerpt from The Lines, Switching and Safety Devices for Electrical High Voltage Systems: Second Section Switching Systems, Installation of Lines and Cables Third Section Calculation of Line Networks. With the increase in voltages and the ever-expanding reach of electrical engineering into the broadest branches of our industry, which also brings more layers of the population into contact with electrical systems, the risk of personal injury can also grow, unless personal safety is ensured through the manner of execution and appropriate protective measures. For this reason, special attention is devoted to this section. About the Publisher: Forgotten Books publishes hundreds of thousands of rare and classic books. 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 while 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.