This arrangement would typically be used in conduit and uses two wires between each switch. So before we get stuck in to some wiring diagrams start here to make sure you keep yourself safe.

Standard Lighting Circuits Vesternet
Wiring diagrams for lighting circuits. We have and extensive collection of common lighting arrangements with detailed lighting circuit diagrams light wiring diagrams and a breakdown of all the components used in lighting circuits. More common in domestic. The source is at sw1 and 2 wire cable runs from there to the fixtures. The circuit is fed to each lamp fitting in turn and a separate cable connects from the fitting to the switch. This is the most common method switch loop through the circuit connects to each switch in turn and a separate cable goes from the switch to each lamp junction box loop in where the termination and feed connection are done at junction boxes and cables run to. This wiring diagram illustrates adding wiring for a light switch to control an existing wall outlet.
Multiple light wiring diagram. The radial lighting circuit has 3 common wiring options which may be mixed at will. Two way switching 3 wires. The black wire from the switch connects to the hot on the receptacle. Loop in as per diagram above. All the light wiring diagrams are available in the old and the new cable colours to avoid confusion.
Once you have read the safety tips a good place to start is by getting up to speed on the basic. Two way switched lighting circuits 2 3 way switched lighting circuits loop at switch lighting circuits lighting circuit diagrams for 12 and 3 way switching series and parallel circuits adding an extra light from a light switch wiring for a single loft or garage light motion sensor wiring with switched override feature. This diagram illustrates wiring for one switch to control 2 or more lights. Dimmer switch wiring diagram. Two way switching 2 wires. A rheostat or dimmer makes it possible to vary the current flowing to a.
The source is at the outlet and a switch loop is added to a new switch. This is the simplest arrangement for more than one light on a single switch. The source neutral wire on the receptacle is removed and spliced to the white wire running to the switch and to a pigtail back to the receptacle. The hot source wire is removed from the receptacle and spliced to the red wire running to the switch. The most basic circuit with only two wires at the switch. The hot and neutral terminals on each fixture are spliced with a pigtail to the circuit wires which then continue on to the next light.
Lighting circuit diagrams one way switching.