How to go about home improvement water and electricity is the standard

Electrician, plumber, basic knowledge, 8 years of experience summary of front-line masters, divided into 30 sections, let's take a look, what to learn:

1: Explanation of the details of home decoration and drainage (84 minutes).

2: Explanation of various practices of home improvement water supply (61 minutes).

3: Plumber and electrician look at the drawings to explain, floor plan and system diagram.

4: Explanation of the details of lofting in the early stage of home decoration and tooling.

5: Home decoration, tooling, water and electricity slotting details.

6: Home decoration, tooling plumber buried box details.

7: PVC line pipe various practices, in the face of different customers to choose different practices.

8: The relationship between 380 volts and 220 volts, and the details of wire size selection.

9: Detailed explanation of the specific practices of home decoration and tooling light lines.

10: Explain the details of the specific connection method of the lamp wire in the wire box.

11: Home decoration, tooling dual control, three control cable, wiring details explanation.

12: Home decoration bathroom suite bath bomb line details explanation.

13: Home decoration, tooling early electrical box and line details explanation.

14: Explanation of the early functions and circuit details of the weak current box.

15: Explanation of the details of the slot after the completion of home decoration and tooling.

16: Explanation of the overall details of home decoration and tooling after the completion of the early stage.

17: Home decoration, tooling later switch, socket installation details.

18: Explanation of the details of the installation of the electrical box in the later stage of home decoration and tooling.

19: Detailed explanation of the installation of lamps and lanterns in the later stage of home decoration and tooling.

20: Detailed explanation of hardware and sanitary ware installation in the later stage of home decoration and tooling.

21: Detailed explanation of the details of home decoration and tooling after the completion of the later stage.

22: Detailed explanation of the practice of water and electricity in rental housing.

23: Comparison of details of common 380 volt and 220 volt electric boxes.

24: Explanation of details beyond the drawings of the tooling hot pot restaurant.

25: Explanation of the details of KBG pipe practice.

26: Calcium silicate board opening and size details of the ceiling.

27: A comprehensive explanation of hydropower materials.

28: Focus on the maintenance of large electrical boxes.

29: Common sense that plumbers must learn.

30: Explanation of the prospects of electricians and plumbers.

This is what every hydropower master must master, and it is also the direction of every apprentice's growth.

In the renovation concealment project, the line renovation is the top priority. It's not just about everyday use, it's also about the safety of homes and homes. Therefore, we should not only be cautious when accepting the circuit, but also know some key points in advance, so that there will be no problems after check-in, that is, to ensure safety and practicality.

When planning a shipping lane, the ink line can be used as a reference, the so-called pay-off. There should be at least one 1m high baseline, a low socket level of about the height of the line, and a switch level of the height of the switch.

To ensure that both walls are of the same height, an infrared spirit level can be used to assist. to the top of the waterway or to the ground. There are no rules for inspection.

However, if the water reaches the top, it is easier to repair in the event of a leak, albeit at a high cost. Cold water pipes and hot water pipes cannot be placed in the same tank because they expand and contract at different rates, which can lead to loosening and hollowing. The interval is about 20 cm.

Generally, it is operated at a distance of 15 cm between the cold water and hot water outlets. If it is larger than 20 cm, you need to add a welded joint.

The pressure test should be carried out within 12 hours of the completion of the waterway, which is the maintenance period after the waterway is welded. Stress testing can serve its purpose better. The pressure test pressure is times of its working pressure, and the water pressure generally does not exceed.

During the pressure test, pressurization to MPa must be applied. After 20 minutes of pressurization, the pressure drop does not exceed MPa. The position of the connector and switch should be considered in conjunction with Brother Bi.

Taking into account the layout of the furniture, it is better to keep it. The first thing in the hydropower plant workshop is to determine the water potential together with the owner.

A lot of people don't know this, and the renovation company will say you nod your head. When determining the water potential, it is not necessary to find the location first. The laying of waterway pipes needs to be both horizontal and vertical.

Because water pipes are not like electrical pipes, usually water pipes are straight, and joints are usually straight, or 90 degrees. It is not easy to achieve two points and one line.

During the construction, we must pay attention to the laying of the water and electricity noisy lines, and then we should also find professionals who should pay attention to the laying of light and dark lines when laying, and try to choose the dark lines, so that the overall decoration can be more high-end.

It is necessary to measure early according to the filial piety line, skillful opening and positioning. Pay attention to the top of the waterway, there should be a leakage circuit breaker in each set of sub-household distribution box, the leakage current is not more than 30mA, and the overvoltage protection function, so that it can be regarded as the most standard hydropower construction.

Under normal circumstances, people will choose some hidden projects, such as bridges, and the inside of the house will be very clean, and it will look very comfortable, and there will be no messy sensitive pants. Topstitches are not selected.

Home improvement hydropower national standard method: Generally, the waterway goes to the roof, the circuit goes to the ground, and the pipeline goes to the wall, and it is horizontal and vertical, and it is not allowed to walk diagonally. The width of the groove is based on the width of the pipe, and the thickness is about 1 cm after the pipe is inserted.

1. Take the roof by water:

Advantages: easy to find when the water pipe fails, timely maintenance; The joint is installed on the top, not embedded in the wall, which is more convenient when repairing.

Disadvantages: The water pipe is exposed to the air for a long time, and the service life is slightly shorter due to the influence of long-term water collection pressure; The circuit goes to the ceiling, the switch socket is basically about a meter high, if the head of the ceiling wiring, the wall damage is longer, and the wires used are more than the ground.

2. The circuit walks on the ground:

Advantages: It costs less time to install on the ground, can speed up the installation, and the pipeline excess can be shortened and reduce expenses; The ground-running water pipes are protected by concrete, which can reduce the pressure of the water flow and have a relatively long service life.

Disadvantages: It is difficult to repair when there is a problem, and the floor needs to be pried open to repair; Broken water pipes are difficult to detect, and if the home is built with wooden floors, the financial damage may be even more serious; It is easy to seep water downstairs, which may cause complaints from neighbors and more maintenance costs.

3. The pipeline walks on the wall

Advantages: The pipeline goes to the wall, compared with the ceiling, the material is the least, which can save the decoration cost and does not need a large area of the ceiling.

Disadvantages: If the water and electricity installation is on the wall, the installation difficulty is relatively high, and the slotting is more difficult, which has a destructive effect on the wall.