1. Select the material and section of the neutral wire according to the standard requirements, and increase the wire diameter for special users or special sections.
2. Switches and fuses cannot be installed on the neutral line to prevent manual or mechanical misoperation of the switch, causing a broken line.
3. Repeat the grounding of the neutral wire. Once the neutral line is broken, the unbalanced load current can flow back to the neutral point of the power supply through the grounding device due to repeated grounding, thereby suppressing the offset of the neutral point of the load, so that the terminal voltage of the powered device is not excessively biased, thereby reducing The hazard caused by voltage fluctuations.
4. In dense residential areas, try to reduce the wiring method of the zero line in the building and the hutong line to avoid a zero line break and endanger one piece.
5. Strengthen the management of line equipment, check the reliability of patch cords and grounding devices regularly and regularly, and find problems in a timely manner.
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