The distinction between live and neutral wires in the meter box and the precautions for wiring are crucial for household electrical safety. Here are detailed answers to these two aspects:

The distinction between live and neutral wires

Color differentiation: In most cases, the live wire is usually red or brown, while the neutral wire is usually blue or white.

Identification of markings: In the meter box, there are usually corresponding markings on the holes for the neutral and live wires, such as "L" representing the neutral wire and "N" representing the live wire. Some meter boxes also have corresponding numerical markings, such as "0" representing neutral wire and "1" representing live wire.

Precautions for wiring

Safety first: Before wiring, be sure to turn off the power and ensure that there is no current in the electrical box to prevent the risk of electric shock.

Color matching: The live and neutral wires should use wires of different colors and be matched into holes, and should not be swapped.

Sequence specification: The wiring holes of the electric meter should be arranged in sequence, and the wiring should be carried out in the prescribed order to ensure that the live and neutral wires are correctly connected to the corresponding hole positions.

Zero line crossing: The zero line of the electric meter must pass through the wiring hole of the meter and cannot be separately connected to the main line to enter the meter.

Avoid sharing: For three-phase users, the neutral and neutral lines of three element meters or three single-phase meters should be connected inside the metering box, and it is prohibited to connect them from outside the metering box or share them with the neutral lines of other single-phase energy meters.

In summary, the live and neutral wires in the meter box can be distinguished by colors, markings, and other methods. When wiring, safety regulations and wiring requirements must be strictly followed.