Why do I have 2 black and 2 white wires?
So, why are there two black and two white wires in your outlet box? There are two black and two white wires in an outlet box because the outlet is in the middle of a series circuit, accepting power from another source and sending it on. Two cables are hot wires, bringing the power in and carrying it onward to the next.
How do you wire a light fixture with 2 black and 2 white wires?
Take your always hot black and put it on your light switch, than take the other black in that box and put it on the light switch. Take your white that is in the same cable as your always hot black and wire nut it with your other white. Now go up to your light box.
Why does my ceiling fan have 2 black wires?
That is, when two wires are connected, the connection must be accessible, (not behind drywall) and in a properly rated box. The blacks are always hot, and it carries on to another outlet or switch in your home. If you want your ceiling fan and light to be controlled by the pull chains, then it’s simple.
How do you wire a ceiling fan with black and white wires?
Quote from the video:
Quote from Youtube video: The black wire powers the fan. The white is neutral. The green wire is for the ground. And a red blue or striped wire can act as a conductor to carry power to the fans light kit.
What happens if you connect wrong wires?
But here’s the catch: If you connect the circuit wires to the wrong terminals on an outlet, the outlet will still work, but the polarity will be backward. When this happens, a lamp, for example, will have its bulb socket sleeve energized rather than the little tab inside the socket.
What color wires connect together?
The protective ground is green or green with yellow stripe. The neutral is white, the hot (live or active) single phase wires are black , and red in the case of a second active.
US AC power circuit wiring color codes.
| Function | Line, 3-phase |
|---|---|
| label | L3 |
| Color, common | blue |
| Color, alternative | yellow |
How do you wire a light fixture with two white wires?
Quote from the video:
Quote from Youtube video: The two ground wires from the two cables are connected together but the ground wire from the light was not connected together with those two ground wires.
Why does my light switch have 2 black wires?
STEP 3: Identify the terminal and ground wires.
Observe the layout of the wires. You should see two black wires, each connecting to a different screw on the side of the switch. These are called terminal screws. You will also see two white (neutral) wires that connect to one another in the box.
How do you hook up a 2 wire light fixture?
Connect the lead wires from the fixture to the black hot wire in the electrical box by twisting a wire connector to the ends of the lead and hot wires. Repeat these connections with the two white neutral wires from the light fixture and the white neutral wire in the light fixture box.
What color wires go together on a ceiling fan?
Black wire is for the fan. Blue wire is for the light, if light is included with the fan. White wire is neutral. Green wire is for the ground.
When hooking up a ceiling fan where does the blue wire go?
The blue wire from the ceiling fan gets connected to the second live wire from the ceiling. This second wire can vary in color but is most commonly red or black. This connection allows you to power your lights from the second switch. Connect the white grounded wire from the ceiling to the white wire from the fan.
When wiring a ceiling fan what is the blue wire?
Look at the wires coming from your ceiling fan. The black wire from the ceiling fan is the hot wire that runs the motor and turns the fan blades. The white wire is neutral and completes the fan circuit. The blue wire is the hot wire for the ceiling fan light fixture.
What happens if white and black wires are reversed?
If your outlet’s polarity is reversed, it means that the neutral wire is connected to where the hot wire is supposed to be. This may not sound like a terrible thing, but it is. There is always electricity flowing out of an outlet with reversed polarity, even if an appliance is supposed to be off. Why is it dangerous?
How do you tell which wire is which?
Here’s a rundown of electrical wires: The black wire is the “hot” wire, it carries the electricity from the breaker panel into the switch or light source. The white wire is the “neutral” wire, it takes any unused electricity and current and sends it back to the breaker panel.
Can’t tell which wire is black or white?
Quote from the video:
Quote from Youtube video: And on your newer construction homes you'll find a black which is your hot wire. And your white which is your neutral wire now in this case they're both white.
How do you tell which wire is hot if both are black?
As a further test, place the prongs of the multimeter’s wires on the bare metal on the ends of the two black wires. You will get a reading if one wire is hot and the other isn’t. However, if both wires are hot, the reading will be zero.
What happens if you wire a ceiling fan backwards?
Wiring the fixture incorrectly could lead to circuit breakers tripping, lights burning out quickly, or a ceiling fan turning in the wrong direction. Fortunately, this is something any homeowner can do with an inexpensive voltage tester.
What happens if you mix up live and neutral?
There would be a shock hazard, and some devices might not work correctly. Depending on where exactly the wires are flipped, ground fault detecting circuit breakers may become ineffective. All around, this is a bad idea.
Can a hot and neutral wire touch?
A short circuit happens when a “hot” wire (black) touches another hot wire or touches a “neutral” wire (white) in one of your outlets. When these two wires touch, a large amount of current flows, creating more heat than the circuit can handle, so it shuts off.
How do you connect live neutral and earth wires?
Quote from the video:
Quote from Youtube video: Well in fact if you just take the output of a transformer. There is no difference between these wires they're perfectly equivalent there is no concept of live and neutral.
