Today's users consider the skyrocketing prices and the lack of renovation time, and more and more people are choosing to buy second-hand housing. However, second-hand housing saves time and money at the same time, there are also many drawbacks, the aging of the circuit is one of the important issues, in the decoration process should be how to pay attention to second-hand housing circuit transformation related circuit problems? The new house's water and electricity decoration can be installed according to the requirements of the households, but different from the second-hand housing, the second-hand housing needs to be rebuilt on the basis of the original water and electricity renovation. This is a more difficult problem and it will also leave security risks. Today we have come to learn about the need to pay attention to the second-hand housing circuit transformation of relevant knowledge.
Second-hand housing circuit how to transform
1, the circuit does not have ground protection
When accepting second-hand housing, you can open several switch sockets and see if the wires are protected by grounding. Ground protection refers to a kind of protection wiring method that connects a wire and a grounding body in a metal part of an appliance that may not be charged under normal circumstances and may be charged after the insulation material is damaged or otherwise. Older homes that have a long time are generally not protected by grounding, and they cannot reduce the damage caused by the leakage of electricity to the personal property after the circuit is aged or short-circuited. Therefore, it is necessary to take effective grounding protection measures.
2, simple wire loop
Older homes, such as sockets and lighting, often use a circuit, and if several appliances are opened together, it can easily cause the electrical box to trip and cause other appliances to become unusable. In today's wire loop design, power-intensive appliances are routed separately, while others will use more complex circuit wiring.
3, serious aging of circuit equipment
On the one hand, non-standard construction will easily cause the aging of circuit equipment. On the other hand, the equipment itself will inevitably become old as time passes. Therefore, the use of a longer time second-hand housing, in the acceptance, you need to focus on looking at the quality of the various parts of the circuit is good, see if there is no corrosion, damage and other serious aging.
4, switch socket is not enough
The national standard stipulates that the number of fixed sockets in civilian houses should not be less than 12, but there are still many existing second-hand housing outlets that do not meet this standard. If a large number of mobile sockets are used, when the current load increases, the mobile socket will cause abnormally high temperatures due to poor contact, burying hidden dangers of electric shock and electrical fire accidents. Therefore, when renovating a second-hand house, it is necessary to pay attention to adding more switch sockets.
Second-hand housing circuit renovation program
There are differences in the circuit transformation of new houses and second-hand houses, and there are also differences in the circuit transformation of second-hand houses of different ages. Therefore, the development of second-hand house circuit reform plans must be based on the actual situation of second-hand houses in the owner's hands and the needs of owners.
1. Second-hand housing circuit reconstruction with different service life
For commodity houses that are used within 10 years, the majority of houses have little difference between strong and weak electricity and new-home housing. Circuit modifications should be based on local changes. For second-hand houses that use within 20 years, circuit reconstruction needs to be original. The power system for the optimization of adjustments; For more than two decades of second-hand housing, the circuit transformation of the general need to remove all existing wires for thorough rectification.
2, second-hand housing wire pipe transformation
Before the transformation of the second-hand housing circuit, the quality of the original wire tube needs to be checked. If the wire tube has been damaged, the original wire tube cannot be used. If the wire tube is kept well, the wire in the wire tube can be replaced directly. can. This can save the cost of a wire tube.
3, second-hand housing line transformation
If there is no problem with the original circuit quality, then it is not necessary to dismantle, but on the basis of this, some new lines, switch sockets, etc. are added to meet more demands of the owners. However, it should be noted that the new power outlets and other circuits are preferably routed separately from the distribution box and cannot be wired. Avoid adding sockets and lighting fixtures to the original circuit to prevent overloading of a single circuit, tripping or even fire.
4, second-hand housing outlet attention grounding
The original socket circuit of the old second-hand house may not have a grounding wire. Generally, there are only two holes. This does not meet the safety standards for electrical use and must be replaced. One method is to replace the main power box and set the ground 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.
5, second-hand housing weak electricity system transformation
With the development of smart homes, the weak power transformation of second-hand houses is likely to change more than strong ones, and often requires rewiring. Before proceeding with the transformation, consider the layout of the various weak circuits and the installation location of the sockets.
Second-hand housing waterway renovation program
First, the second-hand housing waterway transformation do not forget to sign the permit
Before the waterway reform of the second-hand housing, the start-up certificate should be issued to the residential area. The application plan must be accompanied by the planning of the waterway reconstruction plan. After the approval of the residential property, the property office needs to be accepted on the site after completion.
Second, second-hand housing water pipeline renovation
For homes that have been used for more than 15 years, renovations must be made to the Sheung Shui pipeline. Because the use of water pipes for a long time, minerals will be deposited on the inner wall of the water pipes to generate scale, affecting the health of household water. Second, galvanized iron pipes were used in many houses in the past. Due to the oxidation of water, the pipes may be locally rusted and contaminated, and the pressure resistance may be reduced. This may cause leakage, cracking, and even water pipe breakage.
Third, second-hand housing closed test is essential
Before doing the remodeling of the second-hand housing waterway, it is recommended that the space be closed for water testing and then be checked by the relevant property. If you find a leak, you can find a property solution. Without leakage after the transformation, the responsibility is not clear.
Fourth, second-hand housing water pressure test
After the second-hand house water pipe is installed, the hot and cold water pipes must be pressure-tested, generally 6-8 kg, and the experimental pressure should not be less than 0.6 MPa and the time is 20-30 minutes. If the pressure is maintained without leakage, the air pressure does not decrease and it is qualified.
Fifth, save the second-hand housing waterway renovation drawings
After the construction, an accurate map of the waterway reconstruction must be drawn and properly kept, especially the house where the underground pipe is laid, so as to solve the problem of leakage of second-hand housing waterways in the future.
Editor's summary: The above is the introduction of the second-hand housing circuit renovation program and the matters needing attention, hope to help friends who have this need! For more information, please continue to pay attention to our website, follow-up will show more exciting content.
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