The lamps on a branch circuit should be grouped together as much as possible to avoid very long circuits. ... For large public rooms, where it is important that the blowing of a feeder fuse shall not extinguish all of the lights in the room, the branch circuits are supplied from two or more ... It is well to control the lamps nearest the windows separately from the others so that they can efi my -Way Switch = CM .
|Title||:||Interior Wiring and Systems for Electric Light and Power Service|
|Author||:||Arthur Leroy Cook|