The other two black wires trigger no response. I was changing an old ceiling light fixture with a new one.
Pin By Vincent Tino On Home Improvement Diy Home Electrical
3 black wires light fixture. All home electrical wires made in the us. While the light works it wont switch off at the switchonly at the breaker. The lighting could be added to the three wire cable provided that the circuit breaker is no more than 15 amps and the wire size is no greater than 14 gauge. When i put all 3 black together and all3 white together the light works as long as the switch is in the off position. I have 3 white wires and 3 black wires in a light fixture. Connecting a two wire light fixture to a three wire power supply cable is not an ordinary occurrence.
Three wire supply cables generally carry red and black hot wires of 110 to 120 volts each with a single white neutral wire. I used your previous advice by pairing the white hot and blacks to the black lamp wire and the two white neutrals to the white lamp wire and the lamp stays on when my light switch is in the off position but as soon as i switch the switch on the breaker blows. Knowing which wire does what and goes where is imperative not only in the correct configuration of an electrical system but also for your familys safety. Light fixtures with more than one lamp may have a pair of black and white wires for each lamp. Removing the old fixture i discovered 3 black wire 3 white wires and a ground. Traveler wires are interchangeable on each switch.
Connect the two white wires from the light fixture to the white wire located in the electrical box by twisting an orange wire nut onto all three wires. I connected black to black white to white with the new fixture that had one white one black and one ground. I have a 3 black wire and 3 white wire light fixture. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Only 1 of the black wires seem to be hot lights up the voltage tester when touching the 3 whites and one black together. These connect to the black and white wires in the electrical box with the provided larger wire nuts.
The common terminal of the second 3 way switch connects to the light fixtures. Unfortunately i forgot to mark some of the wires from the previous configuration. Connect the two black wires from the light fixture to the black wire from the electrical box the same way you connected the white wires. I have three pairs of black and white wires plus the additional 2 wires from the fixture making 8 wires in total. Follow standard color codes that identify each wires function in a circuit. The black line wire connects to the common terminal of the first 3 way switch.
Im currently working on replacing a ceiling light fixture on an older house built 1895 and have stumbled across a problem.