To add a new outlet to a group of receptacles already in place splice the new wires to one set of wires on one of the existing outlets.
Add outlet to existing circuit diagram.
You can even add an outlet from a three way switch if that s the most convenient power source for the outlet.
Once power is verified turn off the electrical power to the wiring circuit.
In this video i install two new outlets in a laundry room by tapping into an existing circuit.
The neutral wire from the circuit is shared by both sets.
Here 3 wire cable is run from a double pole circuit breaker providing an independent 120 volts to two sets of multiple outlets.
Here we have an ideal situation the drywall on one side of the wall has been removed and the wiring is exposed.
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I wired the outlet.
Test an existing outlet on the circuit intended for the additional outlet using a 120 volt tester.
Wiring diagram for dual outlets.
Test the same outlet for absence of power using the tester.
In wall switch wiring the neutral wires are spliced together in the switch box to provide a continuous return path from the switched fixture to power.
One cable is the incoming power source entering the box from one side while a second cable exits the box to continue onward to downstream locations on the circuit.
This wiring diagram illustrates adding wiring for a light switch to control an existing wall outlet.
The video response article and wiring diagrams outlining how you can accomplish adding a receptacle to an existing circuit follow below.
This wiring is commonly used in a 20 amp kitchen circuit where two appliance feeds are needed such as for a refrigerator and a microwave in the same location.
When an outlet receptacle falls in the middle of a circuit run rather than at the end there are generally two cables in the outlet box.
Verify that no power is present in the circuit.
Don t be confused by the fact that a switch doesn t have neutral terminals.
Wiring a new outlet to another outlet.
Different wiring arrangements are included to allow for either the light or the switch to come first in the circuit.
There are diagrams for adding lights to a ceiling fixture you already have and for using an existing wall outlet as the source for a new switch and light.
The hot source wire is removed from the receptacle and spliced to the red wire running to the switch.
Arrangements are included to use an existing receptacle circuit or lights and switch circuits as the source for a new wall outlet.
The source is at the outlet and a switch loop is added to a new switch.
Adding a new electrical outlet to an existing run is a straightforward process.
The black wire from the switch connects to the hot on the receptacle.