International Library of Technology · Scranton, International Textbook Co. · leaf 95
d ones, man-holes are provided everyFIG. 3. 400 feet. Mud accumulates in the main conduit very fast, and if notpromptly removed gives trouble. At intervals of 200 feetthere are manholes in the main conduit; at the bottom ofthe manhole is a 6-inch drain pipe leading to the sewer.The main conduit… … 20 ELECTRIC RAILWAYS. 7. The conductor rails are not continuous, but aredivided into sections about a mile long, and each section isfed by its own feeder from the power house. There is noelectrical connection between these feeders, so that the roadis cut up into insulated sections, and trouble on…
Electrical engineering
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.], 1902, leaf 95](https://img.insideoutlibrary.com/img/1024/ia-electricengineer04inte-95-32.webp)
