In the second renovation, the transformation of hydropower and other lines is a particularly important project, and almost every family will be involved. In particular, some old houses, if they do not change hydropower, can no longer be used normally or are prone to fire, running water and other dangers. So, what should we pay attention to in such an important transformation?
It is necessary to reform the waterway
For homes that have been in service for more than 15 years, during the second renovation, the Sheung Shui pipeline must be reconstructed. First, after the Sheung Shui pipeline is used for a long time, minerals will be deposited on the inner wall of the water pipeline to generate scale, leading to more impurities in the water and affecting the health of household water. Second, galvanized iron pipes were used in houses built before 1990. Due to the oxidation of water, the pipes may be partially rusted and contaminated. In particular, where the pipe joints are laid, the inside and outside of the pipe joints are easily rusted and the pressure resistance is reduced. , It is easy to cause leakage, cracking or even water pipe breakage. New types of water pipes, such as aluminum-plastic pipes or PP-R pipes, which are popular after 1990, will also age and crack, and occur in practice from time to time. In addition, the second renovation is generally necessary to carry out the transformation between kitchen and other functions, in order to beautify the environment, the general will be changed from the previous tube to the dark tube.
Things to look out for in transformation:
1. New-type water pipe materials are selected. Common are: new plastic pipes such as PP-R and PE, and stainless steel pipes and copper pipes of higher grades. But be careful not to use aluminum-plastic tubes, because the joints of aluminum-plastic tubes are card-type joints, and the gaskets inside the joints will age earlier than the tubes.
2. In general, buried pipes will be buried in the decoration, but it is best not to bury it under the ground.
3, due to the water pipe in the water, due to turbulence in the tube caused by the phenomenon of vibration of the water pipe, so the pipe installation should be more pipe clamp to ensure that the long-term stability of the pipeline.
Circuit transformation of strong electricity into plastic copper wire
Indoor electricity lines are generally called strong electricity, and there are mainly two parts of the lighting and socket circuit; in the second decoration, the transformation of the circuit is necessary for each house. If the original residential circuit uses aluminum wire, it must be replaced with a plastic copper wire. Because the aluminum wire has a low melting point and large electrical resistance, there is a potential safety hazard and the country has explicitly eliminated it. Before the renovation, several socket boxes should be opened to check the nozzles of the originally installed wire tubes. If the wire tubes are rusted, the original wire tubes cannot be used and they should be discarded. If the wire tube is well-preserved, the wires in the tube can be replaced directly. If the tube is threaded with a plastic wire that meets the standard, it can still be used.
In order to save renovation costs, the original lines can be used without removing them, but the newly added power sockets and lighting circuits are preferably routed separately from the distribution box, and do not directly connect directly from the original circuit or directly from the outlet. Leads, because all the original circuit is installed, the current is calculated and distributed according to the load of each circuit branch. Any connection or addition of sockets and lighting fixtures to the original circuit will cause the overload of a single circuit, which is likely to cause Tripping or burning of the power mains can cause serious fires.
Many old houses should consider replacing the main power box in the interior during the second renovation, because the original power box is generally not loaded enough and no leakage protection device is installed. In addition, in old residential buildings, the original socket circuit may not have a grounding wire (usually only two holes of the socket are missing grounding), which does not meet the electrical safety standards and must be replaced. One method is to replace the main power box of the house and set the grounding in the power box. Another method is to consult the power management personnel of the property to negotiate the installation location and connection method of the ground wire. Do not make a claim to set the ground wire.
Change the weak electricity to protect
In the second decoration of weak line items such as telephone lines, network cables, and video cables, first of all, it is necessary to protect the entrance lines and socket panels, and it is best to close them in advance. Change the pipeline to start the transformation from the home interface box, do not cut off the line, otherwise it will be very difficult to restore. After the installation of the indoor weak line, it is necessary to inquire Netcom and other professional companies or property companies to inspect, and the professional will perform the connection between the new indoor weak wire and the household interface box to ensure that no problems and failures will occur in the future. , General home improvement company's electrician has a low-voltage electrical operation permit, for strong construction standards can be assured, but the construction of weak electricity is not professional.
Before the renovation, you must consider all kinds of installation locations for weak electrical outlets in advance. According to people's living habits, it is best to leave weak electrical outlets in all major functions (such as the living room, bedroom, etc.). The toilet must consider the telephone outlet. To facilitate future life. As for building intercom systems, it is advisable to request the property department to be removed in advance during the renovation and reinstall it after completion. If it cannot be removed, it must be bandaged or protected beforehand to avoid damage during the construction process.
It should be noted that all weak wires must be laid through the pipe, and weak current lines and sockets are best maintained with strong power lines and sockets.
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