Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 227
andle is attached to theother end of the blade. If the switch has two or more poles, they 201 80 MANAGEMENT OF DYNAMO-ELECTRIC MACHINERY are fastened together by means of an insulating crossbar, and thehandle is attached to the crossbar instead of to the blade direct.Fig. 66 shows such a lever… … Fig. 67. Complete Panel Board in Steel Cabinet Their rules require that switches have sufficient metal for the neces-sary mechanical strength, and that the temperature rise shall notbe more than 28 degrees centigrade above the surrounding air, whencarrying full rated load continuously. With good…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-621-368.webp)
