Two black wires are what you’d expect to see with a switch leg. That is what its called when the black wire up at the light fixture is interrupted and a pair of wires called a Switch Leg goes down to a wall switch. One wire goes in the top of the switch, the other into the bottom.

## What are the two black wires in my light fixture?

If you end up with a fixture with two black wires, you can examine the texture first. Some fixtures with black wires have one smooth wire and one that has a ribbed texture. If this is the case, the ribbed wire is neutral and connects to the white wire in the ceiling.

## Why do I have 2 black wires?

Black means hot, white signifies neutral, and green indicates ground. However, if you need to rewire a light switch or a plug socket, you may occasionally come across two black wires. It’s essential that you determine which black wire is hot before proceeding.

## Which wire is hot when both are black?

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.

## Why does my ceiling fan have 2 black wires?

That second black wire in the ceiling box will only be “live” when 1) the switch is on, AND 2) when the “live” black wire is connected to the taped white wire in the ceiling box. Otherwise, the current does not reach that second black wire in the ceiling box.

## Can you put 2 black wires together?

This is the typical way to connect a switch. The 2 blacks connected are “power in, power out” to the next switch in the circuit. The pig-tail to the dimmer connected to the two blacks is also typical.

## How do you wire a light fixture with two sets of wires?

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.

## Why does my light switch have two black wires and two 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.

## What do I do with extra wires in light fixture?

Quote from Youtube video: You get the other one put two back together you want to make sure that those caps are on your wires. So that way somebody doesn't get electrocuted.

## How do you know which wire is positive and negative on a light fixture?

If you have a wire where both sides are the same color, which is typically copper, the strand that has a grooved texture is the negative wire. Run your fingers along the wire to determine which side has the ribbing. Feel the other wire which is smooth. This is your positive wire.

## What happens if you connect the wrong wires on a light fixture?

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.

## How can you tell which wire is hot on a light fixture?

Identify the neutral wire in the fixture by looking at the wires. In most modern fixtures the neutral wire will be white and the hot wire is red or black.

## What happens if you wire live and neutral wrong in a light?

Simple answer: it creates a shock hazard/unsafe condition. If you do it, and know you did it, and don’t fix it, and someone gets hurt, it may also create a liability situation for you.

## What happens if you mix up hot and neutral wires?

This happens when the hot and neutral wires get flipped around at an outlet, or upstream from an outlet. Reversed polarity creates a potential shock hazard, but it’s usually an easy repair. Any \$5 electrical tester will alert you to this condition, assuming you have a properly grounded three-prong outlet.

## Can Reverse polarity cause a fire?

Watch out: Reversed polarity on an electrical outlet is dangerous. If you accidentally reverse these wires the device you plug in to the receptacle may “work” but it is unsafe and risks a short circuit, shock, or fire.

## What happens if you connect live and neutral together?

When a live wire and neutral wire come in direct contact, what happens? It is the condition of the short circuit if the live wire directly comes to the neutral wire. … If Normal wire burns, the circuit will break and everything will become normal except for that wire.

## What happens if live and neutral 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?

## What happens if you hook up a ceiling fan wrong?

Wiring the fixture incorrectly could lead to circuit breakers tripping, lights burning out quickly, or a ceiling fan turning in the wrong direction.