The primary power source would be spliced so it may provide power to the new switches and then to the gfci outlet. I hope this helps dave.
Electrical Basics Wiring A Basic Single Pole Light Switch
Wiring multiple light switches one power source. However if the bathroom already has an outlet then the additional gfci should be fed from the existing outlet. You have the power supply white wire that leads back to the breaker panel and you have the three white wires that connect to the three fixtures. The supply has a black white and bare ground wire. How to wire two light switches to one power source. Installing single pole switch and 3 way switch on. How to wire two light switches from one power source step 1 turn the power off.
Multiple switch wiring 3 way and single pole multiple light switch wiring with conventional light switch wiring using nm cable a nm cable supplies line voltage from the electrical panel to a light switch outlet box. You will want to run a cable from the power source to the first light switch and then from the. One source is spliced to each switch with a pigtail to power the two lights. Another nm cable connects the first outlet box to the next box es and so on until you reach the end of the chain. Currently you have a total of four white wires. Step 2 run the cable.
This video is about installing two leviton light switches on one power source. How to wire two light switches with one power supply step 1. Be sure that the existing circuit has the capacity for the additional loads. The source is at the switch box and a 2 wire cable is run to each light. This step is very important and as simple as it sounds. You basically connect the supply white wire to the white wires going to each light.
Then you connect the black wire for each light to one side of. Connect the white or neutral wires together in the gang box. Use a circuit tester to verify that the power is off to the circuit you are. Begin by installing the feed cable from the power. Remove 12 inch of insulation from the black wire and connect it to the bottom brass terminal of the switch with a screwdriver. Shut off the power to the circuit.
Pull a 12 gauge cable from the power source making sure that the. Use a yellow wire nut and twist all four wires together. Install a double switch wall box and run the feed cable. Being careless in this step could. Wiring two switches for two lights here two switches are wired in the same box to control two separate lights.

















