What to do with three sets of wires?
Third, knowing that the power is off, turn on the switch and check continuity between the black and white wire, at your the problem outlet Box. If you get continuity then you could do the same thing as before using the black (of line C) for power and the white (of line C) as the switch leg for the top part of the receptacle.
How is a 3 wire light switch wired?
Rather than properly replacing the cable with a 3-wire as far as the light switch, Dr. Frankenstein decided to re-purpose the bare ground wire of cable C as a neutral, with either the white or black feeding back from the switch to half the outlet. You have to open the switch box and see how it’s actually wired.
What kind of electrical outlet has three sets of wires?
These were the 3wire flat wrapped type. 1)Stripped all wires, 2)hot wire for light switch on copper screw, 3) hot wire for plug #1 on second copper screw, 4)hot wire for plug #2 insert in hole on back, 5)null wire #1 on silver screw, 6)null wire #2 on second silver screw, 7)null wire #3 inserted in hole on back.
What does the ridge on a power cord mean?
Wire and cord manufacturers follow national standards and codes for marking wires. The consistent way cords are identified ensures that electricians and other end users know they are wiring their products correctly. Wires that have a ridge along the length of a cord are found on flat cords and represent the neutral wire.
What kind of wire is a 3 wire cord?
This equipment grounding conductor is the missing wire in the older 3-wire configurations. In these older appliance installations where 3-wire cords were legally installed, the wiring consisted of two hot wires and a neutral wire.
What is the 4th wire in a 3 wire plug?
The 4th wire in that cord and plug configuration is an equipment grounding conductor. This equipment grounding conductor is the missing wire in the older 3-wire configurations. In these older appliance installations where 3-wire cords were legally installed, the wiring consisted of two hot wires and a neutral wire.
Can a 3 wire breaker be used on a 4 wire breaker?
If the Neutral in that 3-wire configuration wasn’t connected to the metal frame and housing of the appliance, the circuit-breaker protecting the appliance would not trip during a short to ground condition.
