Is White Or Black Wire Hot. Sometimes a white wire is used as a hot wire—not a neutral—in a switch leg, or switch loop, between a switch and a light fixture. In the course of replacing this light receptacle i came across two white wires.
White wires are to be connected to the silver terminals or screws or to the terminals marked white or neutral. In dc circuits, the positive pole is usually marked red (or +) and the negative pole is usually marked black (or −), but other color schemes are sometimes used in automotive and telecommunications systems. Then hook that one up to the hot wire of the circuit. I don't believe there is a standard.
If you see a white wire marked with black or red (or a piece of black or red electrical tape at its ends), that means it's acting as a hot wire and is no longer neutral.
At a electrical outlet, the black wire provides the power.is the neutral wire also carrying this same power, basically is it as hot as the black wire? Hot wires, pulled in conduit. When a white wire is augmented with a red or black color marking, this may indicate that it is being used for a purpose other than neutral. For the power switch, reset, hdd, etc.
