Common knowledge of home circuit wiring

Living conditions are getting better and better and household appliances are getting cheaper, so every family buys a variety of appliances. The old line is not suitable for the requirements of current electricity, so when renovating, the line will be re-wired. But how to wire is safe and practical, let's know the wiring knowledge of home circuit with Xiaobian.

Wiring method

According to different laying methods, indoor wiring can usually be divided into two types: light laying and dark laying. Open laying refers to laying the insulated wire directly on the wall, ceiling surface and truss, bracket, etc., or laying the insulated wire through the conduit on the wall, ceiling surface, truss, bracket, etc. Concealed laying refers to the laying of insulated conductors in conduits, laying inside walls, ceilings, floors, floors, etc. or laying in holes in concrete slabs. Commonly used indoor wiring methods include: conduit wiring, plastic sheathed wiring, etc.

Wiring principles

The basic principles that indoor wiring should follow: indoor wiring and electrical appliances and equipment must ensure safe operation, ensure the reliability of line power supply and indoor electrical equipment operation, and ensure the convenience of construction and operation operation and maintenance. Indoor wiring and electrical appliances Equipment installation should contribute to the beautification of the building.

1. The wiring channels should be as few as possible. The sinking conductors in the same channel should be classified and concentrated according to the main and control circuits. The single layers should be closely packed or bundled in parallel and should be laid closely.

2. The length of the wire should be as short as possible, and it can be crossed horizontally, such as the connection between the coils of the two components and the connection between the main contacts of the connection.

3. The wires on the same plane should be consistent in height or consistent, and cannot cross. When it must cross, it can be crossed horizontally, but it must be reasonably routed.

4. The wiring should be horizontal and vertical, and the changing direction should be vertical 90 °.

5. If the upper and lower contacts are not under the same vertical line, they should not be connected with diagonal lines.

6. When the wire is connected with the terminal or wire pile, the insulation layer, the reverse loop and the exposed copper should be no more than 1mm. And the distance between the wires of different contacts of the same component and the same circuit should be consistent.

7. The number of connecting wires on a terminal of an electrical component shall not exceed two, and only one connecting wire on each terminal board is generally allowed.

8. When wiring, it is strictly prohibited to damage the insulation of the core and the conductor.

9. When the cross-sectional area of ​​the wire is different, this will place the larger cross-sectional area in the lower layer and the smaller cross-sectional area in the upper layer.

10. When wiring multiple wires (main circuit), the whole should be in the same horizontal plane or the same vertical plane.