1. The air conditioner circuit for the cabinet unit should be a separate 4-square millimeter circuit. The kitchen and bathroom each require their own 4-square millimeter circuits. Lighting should use a 2.5-square millimeter circuit, while general power outlets should be wired with 1-2 circuits of 2.5-square millimeter wire. It's recommended to avoid using 1.5-square millimeter wires for main circuits due to safety concerns.

2. There should be a minimum separation of 30 cm between strong and weak electrical lines. Additionally, strong electric conduits must maintain at least 30 cm distance from heating pipes, hot water pipes, and gas pipes to prevent interference and ensure safety.

3. In the same room, power, telephone, and TV sockets should be installed at the same height (unless there are special requirements). Always follow the standard wiring principle: left zero, right live, and ground line on top. The ground wire should ideally be yellow-green as per national standards for better identification and safety.

4. All incoming cables should be protected by locknuts. The conduit should be laid straight without sharp bends. If bends are necessary, they should be made using hot bending or spring bending techniques. Connections must be sealed with PVC glue. Always thread the wires after laying the conduit. Any area where the ceiling cannot be buried should be protected with square wax pipes. Bare wires are strictly prohibited, and all ceiling wires must be properly fixed in place.

5. Weak electrical lines should not have any connectors, except for TV cables which may use a frequency divider. Network cables must not have any joints to ensure signal integrity and reduce the risk of interference.

6. All electrical conduits must be protected. When three sets of wires enter the same junction box, a separate box should be used to avoid overcrowding. A junction box should also be placed in areas where a ceiling light will be installed for easy access and maintenance.

7. After completing the electrical work, it is essential to test all sockets and light circuits using a test bulb. If the voltage is too high or too low, carefully check and rewire if necessary. Never proceed to the next stage without confirming that the lines are de-energized and safe.

8. Once the project is completed and accepted, create an accurate electrical layout map and provide it to the client. It’s also a good idea to take photos for future reference and documentation.

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