Is the hydropower process difficult?

In the case of complete tools, a pile of PVC pipes, wires and other raw materials are constructed by workers into a beautiful, safe and standardized process. The required technology is not difficult for skilled workers to master.

On the contrary, for people who are not engaged in the decoration industry, the situation is often quite different. They often find that, unlike the clear and boring instruction manuals encountered when learning other technologies, although there are a large number of forums and even video courses to guide the construction process on the market, they are often unclear in key places, which makes the owner confused.

material selection

1 Selection of wires

There are various types of wires, which can be divided into many types according to different uses. Compared with wires for other purposes such as engineering, household wires have relatively low functional requirements for wires. Specifically, household wires are classified as follows.

Regular size of household wire

We often hear that the square of the wire refers to the size of the wire. The common sizes are 2.5 square, 4 square, 6 square, and 10 square. The square of the wire is square millimeter, which refers to the size of the cross-sectional area of ​​the wire.

For home furnishing and air conditioning, the 4 square wire is generally used for the kitchen and air conditioning. The 2.5 square wire is used for the light wire. So someone will ask, is it better to use 4 square wire? In fact, it is a waste to use 4 square meters of wire for the lamp line, and 2.5 square meters for the lamp line is completely enough. There is no need to waste money and increase the decoration budget.

2 Pipe selection

There are many types of pipes, which are divided into many types of pipes according to different uses, and the pipes used for home improvement circuit transformation are PVC pipes.

So why use PVC pipes first in our home improvement? Due to the advantages of relatively affordable price, convenient construction, and no rust, PVC pipes are commonly used in home improvement circuit transformation. Its main ingredient is polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness, ductility, etc.

PVC line pipe wiring

(1) The PVC pipe must be stretched, use a cutting machine to slot, the slot depth and width is greater than the pipe diameter.

(2) If the floor of the PVC pipe is not slotted, first bounce the ground straight and then fix it along the line.

(3) The pre-elastic thread before slotting can ensure the horizontal and vertical pipeline construction to the greatest extent, and ensure the implementation of the workmanship.

The spacing control and horizontal height control between the cassettes are the key to ensure the uniformity of the later switch panel installation.

The wire left in the switch box and socket box should be 150mm-200mm, the wire end is wrapped, rolled into the box, and covered with a protective cover.

Weak current conductors (telephone, TV, network, etc.) and strong current conductors are strictly forbidden to be co-slotted. If the strong and weak currents need to be handed over due to construction on site, it is necessary to wrap the foil.

The water inlet of the toilet must be installed beside the toilet, and cannot be blocked by the toilet, so that the toilet can lean against the wall. One-piece toilets need to determine the location of the water outlet according to the model.

System water pressure test requirements

1. Before the pressure test, the water pipe valve should be closed, the cold and hot water pipes should be connected, the plug should block the pipe mouth, and the indoor piping system should be pressed.

2. Slowly fill the end of the pressure test pipeline with water and discharge the gas in the pipeline. Check the seal after being filled with water.

3. The pressurization should use a manual pump or an electric pump to slowly increase the pressure. Raise to the specified test pressure (6-8 pressures on the market, the company is positioned at 8 pressures), stop pressurizing, and observe whether there is water leakage at the joint.

4. After voltage stabilization, the pressure drop within half an hour does not exceed 0.05MPa to be qualified.

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