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of the system; c, g, k, and m show the lamps as practically arranged between the wires in the usual manner, while h and i show lamps arranged between the outside wires, as they may be, and frequently are, for certain specific purposes, and e and f illustrates the method of leading
![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Incandescent_Electric_Lighting_-_Fig_12.png/300px-Incandescent_Electric_Lighting_-_Fig_12.png)
Fig. 12.
wires from the street mains into houses which are to be lighted, as is the practice where this system is to be used on a large scale.
The two generators shown coupled together form the unit which is multiplied in creating a central station. Of course the dynamos vary in size and capacity;