International Library of Technology · Scranton, International Textbook Co. · leaf 649
5 5S. Conduits less than | inch inside diameter are notallowable and an outlet box should be provided at everyoutlet. When branch lines are taken off, a junction boxmust be provided. There should not be more than theequivalent of four right-angled bends between junctionboxes or there will be…
Electrical engineering
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.], 1902, leaf 649](https://img.insideoutlibrary.com/img/1024/ia-electricengineer03inte-649-384.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-357-240.webp)
