Part1: Comprehensively understand the status of second-hand aqueous circuit inspection
Many second-hand houses have been used for a long time, and the hydropower system may appear old and unable to meet the needs of modern people. Before formulating a hydropower reform program for second-hand housing, it is necessary to visit the site personally to carefully understand the specific conditions of the house, and focus on checking the details of the house's hydropower. According to the conditions of the house, all or part of the original water circuit will be transformed.
First, the second-hand housing circuit common situation
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.
Xiao Bian reminded: There are still many problems in the circuit of second-hand housing, such as the lack of electrical load in the distribution box, and the existence of a number of Ming Pu lines. The owner needs to carefully check his own home to see if there is a corresponding circuit problem.
Second, the second-hand housing waterway common situation
1, water pipe materials need to be replaced
Due to material limitations, many of the previous water pipes used cast iron pipes, galvanized pipes, and aluminum-plastic pipes, and the pipes of these materials were susceptible to water quality due to rust. In addition, the pipeline is in disrepair for a long time and is prone to the problem of leakage of dripping water.
2. The waterway design does not meet the requirements
Now that the water pipes have been kept aloof, it has become a default practice for home improvement construction. If it is a second-hand house many years ago, its water pipes may be hidden on the ground. If there is a broken water leak, it will easily affect the neighbors downstairs; in addition, the original waterway of the second-hand housing is no longer suitable for the requirements of the current owners and needs to be renewed. Design piping.
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