Basic knowledge of hydropower installation What should be paid attention to in hydropower installation?

The most important thing in decoration construction is safety, and the basic knowledge of water and electricity installation. It is best to find professionals to carry out the construction of water and electricity installation, because there are many details. If the professional knowledge is not sufficient and the experience is not rich, there will be many minor troubles that cannot be solved, which will affect the overall decoration. Bian Xiao tells you in detail what you need to pay attention to in hydropower installation, and you need to know in detail about safe construction and later safe use.

Basic knowledge of hydropower installation

Basic knowledge 1, construction drawing before construction

Before construction, there must be electrical (strong current and weak current), water supply and drainage design and construction drawings.

Basic knowledge II. It is forbidden to expose wires.

It is strictly forbidden to lay wires directly in walls, floors, floors or ceilings without any protection.

Basic knowledge 3. Wire conduits should be distinguished.

Lines with different voltages, different circuits and different signals are strictly forbidden to wear in the same threading pipe.

Basic knowledge 4. Switch installation of lamps and electrical equipment

Switches of lights and electrical equipment must be installed on the phase line (i.e. control phase line), otherwise, after the switch is turned off, lights and electrical equipment will still be charged, which may easily cause electric shock.

Basic knowledge 5. There are two ways to protect the power system.

At present, grounding protection and neutral protection are widely used in China. Note that in the same system, it is forbidden to use two protection methods at the same time, otherwise it will cause safety accidents.

Basic knowledge 6. It is forbidden to use the mobile switch beside the bed.

If the lamp uses a screw cap, the central spring tongue of the screw cap should be connected to the control phase line.

Basic knowledge 7. Interface protection

Each line interface should be smooth and the connecting plate should be firmly connected. The junction box of the power inlet box shall be protected by a protection ring (lock nut).

Basic knowledge 8, threading pipe elbow radian

In order to update and maintain the conductor in the future, the elbow radian (that is, the cold bending radius) of the conduit buried in the wall, underground or ceiling should be 5 ~ 10 times the diameter of the conduit.

Basic knowledge 9. It is forbidden to connect wires in the threading pipe.

It is forbidden to connect wires in the threading tube, that is, when the length of wires is not long enough, the connectors of wires should not be in the threading tube, but should generally be connected in junction boxes such as switches, sockets and lamp holders.

Basic knowledge 10, selection of threading pipe

The threading tube should be selected with a certain size (thickness), so that the conductor can pass through and enough space should be left so that the heat generated when the conductor passes through a large current can be radiated. The ratio of the cross-sectional area of general conductor to the cross-sectional area of threading pipe is 1/3 ~ 1/2. It is forbidden to block the threading pipe with wires.

Basic knowledge 1 1. PP-R pipes and copper pipes can be used as water supply pipes.

Basic knowledge 12, water supply pipeline inspection

Concealed water supply pipes must be strictly checked to see whether all the connection parts are installed tightly and firmly and whether the direction is correct, and then hydraulic test is carried out, and water can be buried after a period of test. The general pressure test index is between 0.8 MPa and 1.0 MPa.

Basic knowledge 13, matters needing attention in drainage pipe installation

The horizontal pipe of the drainage pipe should have a certain slope, and the socket should be closely connected to ensure no leakage. The distance between the bracket and elevator for fixing the pipeline is reasonable and firm.

Basic knowledge 14, installation position of sanitary ware

The installation position of sanitary ware should be accurate, and the bracket and bracket should be installed smoothly and firmly. The floor drain should be installed at the lowest point of the ground, and recessed into the ground by 5 mm The joint between the toilet and the ground or the nozzle should be sealed with sludge or silica gel, but the cement is not suitable, which will expand and cause the bottom of the toilet to crack.

Basic knowledge 15, Installation position of sanitary ware

The installation position of sanitary ware should be accurate, and the bracket and bracket should be installed smoothly and firmly. The floor drain should be installed at the lowest point of the ground, and recessed into the ground by 5 mm The joint between the toilet and the ground or the nozzle should be sealed with sludge or silica gel, but the cement is not suitable, which will expand and cause the bottom of the toilet to crack.

Basic knowledge 16, orientation of hot and cold faucets

The hot water faucet in the hot and cold faucet should be installed on the left side. Electric water heaters should have grounding protection devices. When it is used for the first time, the air in the bladder should be removed, and it can only be electrified after it is filled with water.

What should I pay attention to in hydropower installation?

First, the socket safety device

The installation operation in home decoration is very common, and the installation position of the socket is not high, which is easy for children to reach and very unsafe. Therefore, in order to prevent children from reaching into the socket hole, it is necessary to install a safety device for the socket to ensure the safety of children.

Second, the distribution box acceptance

Secondly, check the circuit distribution box, the switch in the distribution box must be installed firmly, and you can shake it forcibly from side to side during acceptance. If it is found to be loose, it should be tightened or replaced immediately, otherwise it will be prone to poor contact and fire in the future, causing greater danger. But also pay attention to the switch in the distribution box, and be sure to mark it clearly. If not, it should be corrected immediately during the renovation.

Third, the toilet socket, switch

The socket in the bathroom needs great attention, because the humidity in the bathroom is very high, so it is necessary to install waterproof socket or protective cover to avoid water splashing on the socket and causing safety accidents. Secondly, the power socket in the bathroom should also be moisture-proof socket, and the lighting seat must be a magnetic port safety lamp holder.

Four, water pipe, electric pipe, gas pipe spacing

Water pipes and wires must be installed at a distance and separated skillfully. The distance between water pipe and electric pipe should not be less than 50 ~ 100 mm, and it should be fixed firmly with pipe clamp to prevent falling off. Remember not to rush to carry out decoration construction. Before construction, there are many places to be surveyed. These are the basic knowledge of hydropower installation. If you don't understand the basic knowledge and have little installation experience, there will often be many unsolvable problems. The above also introduces the matters needing attention in hydropower installation in detail, and there are some details that can be omitted in Bian Xiao. In short, it is most reliable to find professionals to carry out construction.

Remember not to rush to carry out decoration construction. Before construction, there are many places to be surveyed. These are the basic knowledge of hydropower installation. If you don't understand the basic knowledge and have little installation experience, there will often be many unsolvable problems. The above also introduces the matters needing attention in hydropower installation in detail, and there are some details that can be omitted in Bian Xiao. In short, it is most reliable to find professionals to carry out construction.