Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 71
separated by thin strips of mica. The center ofthe arrester is connected by a wire to a grounded pipe. In operation, when lightningfollows the overhead telephone wires and goes toward the instrument, it is carried toground by jumping between the carbon blocks. Lightning will always discharge… … WOODEN FRAME
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-264-153.webp)
