Submarine Search-light. An incandescent light which works under water.
Sub-station. A generating or converting plant subsidiary to a central station, and placed so as to supply current in a district situated at a distance from the main power-house.
Subway, Electric. An underground passageway utilized for carrying cables and wires.
Sweating. A process by which the ends of cables are brought together and soldered.
S-W-G. An abbreviation for standard wire gauge.
Switch. A device for opening and closing an electric circuit. Made in a great variety of forms, such as push-button, telegraph-key, knife switch, automatic switch, lever switch, rheostat, etc.
Switch-bell. A combined bell and switch. The bell is operated when the switch is opened or closed.
Switch-blade. The blade of a switch; a conducting strip connecting two contact-jaws.
Switch-board. A board or table to which wires are led and connected with cross-bars or other devices by which connections can be made.
Synchronize. To agree in point of time; to effect concurrence of phase in two alternating-current machines, in order to combine them electrically.