Precautions for home decoration wire threading

1. Wait until the PVC pipe is installed, and then wear the wire uniformly.

Now the workers are taking over the wires while they are wearing them. It is difficult to ensure that the wires can be replaced smoothly in the future.

2. The same circuit wire should be inserted into the same pipe, but the total number of pipes in the pipe should not exceed 4.

The total cross-sectional area of ​​the inner conductor should not exceed 40% of the cross-sectional area of ​​the inner diameter of the tube.

3. The joints that penetrate the piping wires should be placed in the junction box, leaving a wire allowance of 150 mm.

4, the wiring should be first bismuth tin, and then wrapped with tape for 7 laps, the insulation tape wrap should be even and tight.

5, the thread inside the tube should be separated. The fire line is red, the neutral line is blue or black, and the ground line is a yellow-phase two-color line.

6. For the socket, the upper zero fire or the left zero right fire, the grounding is 2.5 square two-color soft wire.

7. When connecting the switch and the screw luminaire, the phase line should be connected first.

8, some decoration companies do not wear the ground line (with 4 points, the ground line can not wear it), absolutely dangerous.

For electrical appliances with metal casings, once they are leaking, whoever is hit is the ground wire.

9. The electric heater should not be installed with ordinary sockets and should not be directly mounted on flammable components.

10. Install the splash box in the bathroom socket.

11. Mark the location of the trace. After the slot is buried, take a photo of the card (especially the kitchen and bathroom) before the wall is closed.

A complete circuit diagram is given after completion to facilitate future maintenance.