The white neutral wire is splice to each outlet so they share the return path. The black and red wires are both hot and each is connected to one of the receptacles.
Upgrading Two Prong Outlets Fine Homebuilding
Wiring two outlets together. Wiring 2 outlets with 2 sources. Use a tester to see if your outlet is grounded. I will show how to wire a double receptacle this is the main reason i have not insulated or dry walled my shop yet. A series of lights indicates whether the outlet is wired correctly or what fault exists. But dont do this unless youre sure theres a ground available. Before you tackle any part of this project turn off the power to the circuit at the main electrical panel by switching off the breaker or removing the fuse.
Before touching any bare wires or terminals on a switch or outlet use a voltage tester on all the wires to make sure the power is off. In this diagram two outlets are wired in the same box with a separate 120 volt source feeding each. After making pigtails with the black and white wires connect the short jumper black wire to the top brass terminal of the outlet and the white jumper to the top chrome terminal. This is also known as a quad receptacle. Wiring diagram for dual outlets. 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.
The second way wiring them on separate circuits requires two live cables. Parallel wiring is used in homes because of the reliable self containment of each outlet or light fixture that allows current to flow past them even if they fail than to have. There are two ways to wire a double gang outlet which is two duplex receptacles together in a double gang outlet box. To save money you can put in a single gfci and then wire additional standard outlets to the load output from the single gfci. Wiring outlets has to be done in parallel since that way should one outlet fail or a bulb inserted in one light fixture burn out the rest of the fixtures and appliances hooked up to that same line will keep working. This provides the same protection as having a gfci at each location.
This type of work should. Three wire cable runs into the box. The neutral wire from the circuit is shared by both sets. Wiring multiple gfci outlets. Just twist them together and connect one to the ground screw as you would in the standard outlet wiring procedure. Wiring them on the same circuit requires jumper wires.
If you have two slot outlets its tempting to replace them with three slot outlets so you can plug in three prong plugs. This is how i added a couple of outlets to my shop. When you need to wire multiple gfci outlets such as in a kitchen or bathroom you have a couple of options. Here 3 wire cable is run from a double pole circuit breaker providing an independent 120 volts to two sets of multiple outlets.