How much does a hydropower install a square ? This is the most common question that the head of the household would like to think about in the decoration. There is no doubt that the decoration budget is the most concerned issue for every head of household and the basis for the decoration of the head of the household. Hydropower installations play a decisive role in home renovations. If it is because of buying a poor quality water pipe, it may suddenly burst during use. For small ones, you need to replace the entire ceiling, while flooding the ground. The quality of the wire directly affects the life and safety of the home appliances. If the water circuit reform is another big expense. Hydropower installations are so important. Then, what are the knowledge of hydropower installation? How much is a square meter of water and electricity installed ? I will describe the hydropower installation knowledge in six steps below.
Hydropower installation basic knowledge
1, construction drawings before construction
Before the construction, there must be electrical (strong, weak), water supply and drainage design drawings.
2, is strictly prohibited exposed wire
It is forbidden to lay the conductor directly in the wall, floor, under the floor or ceiling without any protection.
3, wiring line pipe to distinguish
Different voltages, different circuits, and different signal lines must not be put in the same threading tube.
4, the installation of lamps should be done after the paint is completed
Installing lamps on brick-concrete structures, using wooden wedges, applying hooks, bolts, or expansion bolts, etc. is strictly prohibited. There should be no less than two bolts (or screws) for the fixture. Luminaires must not be installed on combustible components.
5, switch and installation of lights and electrical equipment
Lamps and electrical equipment must be installed on the "phase" switch (that is, control the phase line), otherwise the switch off, the light off and electrical equipment is still charged, easy to cause electric shock.
6. There are two protection methods for electricity system
Ground protection and zero protection, China's current general approach is to ground protection. Note that in the same system, it is forbidden to adopt two protection methods at the same time, otherwise it will cause a safety accident.
7, prohibit the use of mobile switches on the bed
If the fixture is a screw base, the center tongue of the screw base should be connected to the control phase.
8, the protection of the interface
The interface of each line shall be smooth and the connection between the plates shall be firm. The power inlet box interface box should be protected by a protective ring (lock nut).
9, threading pipe elbow arc
In order to renew and maintain the conductors in the future, the arc of the elbow buried at the corner of the wall, underground, or ceiling (ie, cold bend radius) should be 5 to 10 times the diameter of the conduit.
10. It is forbidden to connect wires in the threading pipe
It is forbidden to connect the wire in the conduit. That is, if the length of the wire is not enough, the connector of the wire cannot be in the conduit. Generally, it should be connected in the junction box such as switch, socket and lamp box.
11, the choice of threading tube
The threading tube should be selected to have a certain size (thickness), not only to enable the conductor to wear in, but also to leave enough gaps, so that the heat generated by the conductor when passing a large current can be dissipated. The ratio of the cross-sectional area of ​​the general conductor to the cross-sectional area of ​​the conduit is 1/3 to 1/2. It is forbidden for the wire to block the conduit.
12, the water supply pipe can be PP-R pipe, copper pipe.
13, water supply inspection
The dark water supply pipeline must be strictly inspected whether all the joints are tightly and firmly installed, and the hydraulic pressure is correct. After the water pressure test, the water can be buried for a period of time. The pressure test index is generally between 0.8mpa and 1.0mpa.
14, drainage pipe installation points
Drainage pipes should have a certain slope, and the sockets should be tightly connected to ensure no leakage. The spacing between the brackets and elevators for the fixed pipes is reasonable and firm.
15, the installation position of sanitary appliances
The installation position of the sanitary appliance should be accurate, and the support and bracket should be flat and firm. The floor drain should be installed at the lowest point of the ground and be 5mm recessed. The connection between the toilet and the floor or the nozzle is sealed with sludge or silicone, and cement should not be used. The cement will expand and cause cracks in the bottom of the toilet.
16, the direction of hot and cold water taps
Hot taps in hot and cold faucets should be installed on the left side. The electric water heater should have a grounding protection device. When it is used for the first time, the air in the gall bladder should be removed. After filling the water, it can be started by electricity.
How much does a hydropower install a square
How much is installed for one square meter of electricity and water, and the cost of labor charges is not the same everywhere. Generally, 10 to 20 square meters, hydropower is a relatively easy part of the increase, that is, the budget will vary greatly, and you can also talk about the fixed price of water and electricity with the decoration company. .
Editor's summary: The above is the amount of money installed by a square meter of water and electricity: Some districts have different charging standards to introduce disputes. Water and electricity installations are the most important steps in most renovations. They are also the most hidden and most problematic steps. We are in control. On the basis of the budget, the quality of control is more important. Therefore, it is advisable to carry out relevant inspection and acceptance of the hydropower installation and related supervision of the constructors. After the installation is completed, relevant inspections are carried out again. This ensures the budget is clearer and more secure. The quality of hydropower projects.
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