Matters needing attention in hydropower installation of commercial housing

The design and construction of hydropower must put safety first. The principle of giving priority to norms, being as beautiful as possible, being practical, careful and economical. Below, we will introduce you to the knowledge of water and electricity installation of commercial housing and the matters needing attention in water and electricity installation.

Water and electricity installation of commercial housing:

65438+ Put away the switch socket bottom box. The socket is slotted 40 cm from the ground, the hanging air conditioner socket is slotted 2.2 m from the ground, and the switch is slotted 1.2- 1.4 m from the ground. The installation of fittings at the bottom of switch socket should be slotted horizontally. Kitchen and bathroom should be slotted according to the designed function.

2. Slotting of water pipes and pipelines: construction method: first, spring the line, then slot. Grooving of pipes must be parallel and vertical as required. Pipes that must be laid in parallel should be controlled at a height of 60-90 cm, and pipes with faucets should be vertical. The depth is controlled at 4 cm. After slotting, the person in charge of construction should remember the size and location of the slotted pipeline. It is convenient to know the location of the pipeline when installing sanitary ware in the future.

3. Waterway pipeline inspection: Waterway pipeline inspection is very important.

This is related to the hidden dangers of waterway safety in the future. We usually carry out pipeline inspection through pressure test. Pressure test is one of the methods to check pipeline leakage. First, all the insiders died with gambling heads. Test the water with a pressure gauge (general decoration 12). After pressing, check all joints of all pipes. The second method is to open the sluice for two days and nights after gambling, and check all joints on the third day. 4. Waterway pipeline installation: material requirements, PPR water pipes and aluminum-plastic pipes. Three years ago, most users bought aluminum-plastic pipes, but in the past two years, more users used PPR pipes. Pipes are divided into cold water pipes and hot water pipes. Put an end to the use of galvanized iron pipes for concealed pipelines. First of all, through the construction drawing, the construction personnel discuss the location and use function of the water area with the owner. Arrange the plumber to discharge and install all taps and water levels. If there is a construction drawing, it can be arranged according to the construction drawing.

If the waterway function of the construction drawing is not in place for a long time, communicate with the owner to increase the waterway function. 5. Secondary waterproofing: After the installation of waterway pipelines, seal all trunking in the bathroom with cement and sand. After the trench and ground are filled with slag, clean the ground and walls again. When the water on the wall and the ground is dry, it can be waterproof, and the waterproof of the wall is one meter high. If there is a furniture wall behind the kitchen and bathroom wall, it must be full of walls. Play the role of moisture-proof furniture. If the ground needs to be filled with slag, it must be waterproof before filling with slag. 10 cm slag is filled by dry mixing with cement sand. The ground and the wall are waterproof for the second time together. The waterproof skin made on the ground has been destroyed during hydropower construction, and must be re-made together with the wall. The first waterproof is to ensure that the ground will not leak. After the pipeline is installed, the wall and floor should be done again, so that the floor and wall can be more effectively waterproof.

6. Wiring of electric wires and lines: material requirements: 2.5-6 square meters of copper core wire and 16mm of conduit. Wiring requirements: most electricians do not consider the separate wiring of high current and weak current, switches, air conditioning sockets and electrical sockets in circuit wiring. So slotting also saves a lot of working procedures. The wiring required for high voltage and low voltage should be at least 30cm apart. Air-conditioning sockets should be grouped with wires of more than 6 square meters, electrical sockets should be grouped with wires of more than 4 square meters, and switches of more than 2.5 square meters should be grouped. The air conditioning line group is more than 2 meters away from the ground. Ground wiring, switch wiring and wall top wiring of lighting wiring group of electrical wiring group. When the switch socket is installed at the bottom, it must be horizontal and vertical, so that the rear panel will be installed more smoothly. The switch sockets in the kitchen should be arranged and installed according to the design function of the kitchen cabinet. After all the electrical lines are laid, the person in charge of construction should remember the layout and discharge size of the lines, so as to facilitate the installation of various household ornaments in the later stage.

Matters needing attention in acceptance of hydropower decoration:

1, the test pressure should be 1.5 times of the working pressure of the pipeline system, and should not be less than 0.6MPa, and the pressure value is generally between 0.6 MPa and 0.8 MPa, the greater the better, and the longer the pressurization time.

2, buried in the floor surface and walls of the pipeline, before sealing groove must be hydraulic test.

3. During pressure test, the pipeline should be fixed and the pipeline joint should be exposed.

Each outlet of the pipeline shall not be connected with water distribution equipment. 4. For hot-melt connected pipelines, the water pressure test shall be conducted 24 hours after the pipeline installation is completed.

5. Other reasons for testing bifurcation: the plug is not installed, and the cut-off valve has quality problems.