If the water pipe is not properly sealed, it could lead to a burst or leakage. Therefore, after completing any water pipeline renovation, it's essential to perform a pressure test on the water system. The pressure should be maintained for at least one hour without any significant drop in pressure. Ideally, the pressure drop should not exceed 0.05 MPa. In addition, you should carefully inspect the installation of fixtures like faucets and accessories to ensure they are square, complete, and undamaged. Check that the water flows smoothly and that the floor drain is fully functional. To test the floor drain, simply pour a bucket of water onto the floor and observe whether it drains quickly and without clogging.
Any concealed wiring installed inside the walls must be protected by an outer casing. It's recommended to use PPR material for the casing as it is durable and resistant to corrosion. When selecting wires for electrical installations, make sure they can handle the maximum power requirements of the connected devices. For standard household lighting, wires with a cross-sectional area of 2.5 mm² are typically sufficient. However, for high-power appliances such as air conditioners and refrigerators, it’s better to use wires with a larger cross-sectional area, like 4 mm² or more, to prevent overheating and ensure safety.
Miswiring during the installation of power outlets—such as connecting the live wire to the neutral terminal—can cause dangerous short circuits. When installing a two-pin outlet, the right or top socket should be connected to the live wire, while the left or bottom socket should be connected to the neutral wire. For three-pin outlets, the right pin connects to the live wire, the left pin to the neutral, and the middle pin to the ground wire. During the final inspection of the electrical system, a power-on test should be conducted to ensure all lights operate correctly. You can use a regular incandescent bulb with a plug to test the sockets and verify their functionality.
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