for USA, Canada and other countries running a 60 Hz supply service.
A very open-ended question!! More information is needed to give an accurate answer.
Where are these wires located? What does the black wire go to?
Assuming this is in a dwelling where NM cable (Romex) was used, I don't see how you could only have white wires.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
You will have to check to make sure. Normally, with 4 wires, the black and red are both power for 220. White for neutral and bare for ground. If you are only using one leg of it, you would use the black, white, bare ones and cap the red one. Someone may have used the 4 strand because they had it or 220 was planned but not done or both the red and black are hot. You should be able to tell in the panel. Do the red and black both connect to separate breakers or to one or is the red not connected?
You would have to provide more info to be certain what your problem is. Typically a black and white wire would connect to the two wires on the light fixture. The fixture should also be controlled by a switch that "breaks" the black (Hot Wire) to turn off the fixture. If you have a volt meter you can see if there is 120Volts between the black and white wires with switch on. If there is a single white wire going to fixture (Neutral), where is the "black wires tied" to. Maybe one of the black wires has broken off the fixture.
In a typical dryer plug, the two hot wires are usually the red and black wires. The white wire is typically the neutral wire and the green or bare wire is the ground wire. Always consult the manufacturer's instructions to be sure.
Black wires are typically used for power supply, while green wires are commonly used for grounding. White wires are usually neutral wires in electrical systems. It is important to follow proper wiring color codes to ensure correct connections and safe operation of electrical devices.
Just simply, connect all the black wires to the black wire coming out of the connector, and all the white wires to the white wire coming out of the connected. Use the blocks with screw in to connect them (pick them up from most car accessories shops like halfords, wilcos....etc).
The difference between white and black wires in electrical circuits is that white wires are typically used as neutral wires, while black wires are usually used as hot wires. Neutral wires carry current back to the power source, while hot wires carry current from the power source to the device being powered.
In house wiring, the standard color code for identifying black wires is black, and for white wires is white.
The color of the wires in the electrical circuit are green, black, and white.
There should be three wires attached to back of the alternator of a 66. You should have a black wire with a red stripe hooked to the GRD post, a black wire with a yellow stripe hooked to the BAT post and a white wire hooked to the FLD post. The black wire with the red stripe is the ground and splits off with one end bolting to the engine block on the same bolt that holds the negative battery cable to the block, the black wire with the yellow stripe goes to the hot side of the starter solenoid, and the white wire goes over to the F post on the voltage regulator.
In electrical circuits, white wires are typically used as neutral wires, green wires are used as ground wires, and black wires are commonly used as hot wires.
The standard color coding for electrical wires in a circuit is red for live or hot wires, black for neutral wires, and white for ground wires.
The correct order for connecting the red, black, and white wires in an electrical circuit is typically red to black to white.
Green wires are typically used for grounding, black wires are used for carrying electrical current, and white wires are used as neutral wires to complete the circuit.
The standard color code for home wiring is black for hot wires and white for neutral wires.
The correct order of connecting the red, white, black, and green wires in a circuit is typically red to black, white to green.
Make sure the wires are hooked up the right way /red=+black= -
Black wires are typically used for power supply, white wires are used for neutral connections, and green wires are used for grounding in electrical wiring.