In the process of new house decoration, many people often pay attention to the quality and safety performance of carpentry and tile work, ignoring the circuit installation. As everyone knows, the safety performance of these concealed projects is even more important. Once rework is done, it makes everyone feel uncomfortable and does not say anything about it. The engineering movements are large, time-consuming, labor-intensive, and costly.
In the process of new house decoration, many people often pay attention to the quality and safety performance of carpentry and tile work, ignoring the circuit installation. As everyone knows, the safety performance of these concealed projects is even more important. Once rework is done, it makes everyone feel uncomfortable and does not say anything about it. The engineering movements are large, time-consuming, labor-intensive, and costly.
Mr. Zhao, who had just bought a house in Guanzhuang, had moved into his new home for a while. However, the phone at home suddenly took off. When a phone call made a loud noise, it was unbearable. Originally thought to be a problem with telecommunications here, but the people in the telecommunications sector came to a test. The phone line that had been buried under the floor tiles had problems. To fix it, you had to use a floor tile. Mr. Zhao was afraid to think of such a big project. In the end, he could only give up the telephone line.
Audiovisual room lines must be professionally designed to prevent accidents: Pipeline drawings should be preserved. At present, in home decoration, water pipes, wires, telephone lines, cable TV lines, etc. are generally not buried under the floor, or buried in walls, covered with cement, Then surface decoration. This totally enclosed method has caused a lot of hidden dangers and has also brought great obstacles to the maintenance of pipelines in the future.
In fact, even in the commodity housing building books, the introduction of similar concealed projects such as electrical lines is mostly scarce. The owners cannot obtain a complete diagram of the electric circuit when purchasing a house, and they do not know the wiring of the house during the renovation process. Situation, the knowledge of safe power and wiring in the decoration process can be said to be blank. Therefore, keeping a complete pipeline trend drawing is a prerequisite for avoiding problems and solving problems in the future, otherwise it is impossible to start.
At the same time, it must be noted that construction personnel should hold electricians issued by the relevant state departments and prevent the occurrence of unlicensed construction.
Method: When the dark pipe laying needs to use PVC pipe for electrical wiring, the PVC pipe must be used for the laying of the dark pipe. The PVC cable trunking must be used for the laying of the open wire. This will ensure that the concealed lines are not damaged. When laying wires, be sure to use single-stranded copper wire with a diameter of 1.5 mm to 2 mm with a plastic or rubber insulation. If it is a three-stranded parallel line of fire, neutral, and ground, use plastic outside the three wires. The tube is wrapped up again for the purpose of double insulation.
The number of wires should not exceed 4 in the same pipe or within the same slot, and the weak points of the system include telephone lines, network cables, TV antennas, etc. The snow and power lighting lines cannot be laid together with the pipe to avoid TV. The signal reception of the phone is disturbed. Wire connectors should be placed in the seam box. In the specific construction, the wire cannot be wrapped, knotted or jointed in the plastic pipe. Excessive line joints or improper handling are the main causes of short circuit and open circuit. If the moisture-proof treatment of the wall is not very good, it will also cause the wall to be wet and electrified. Therefore, the line must be insulated and damp-proof as much as possible. "Or use a terminal block. When installing sockets and switches, it is necessary to press the "Fire Line Into Switch, Zero Line Into Lamp" and "Left Zero to Right Fire, Ground In On" provisions. Fire line, neutral line and ground line must be separated. In principle, the neutral line is black and the ground line is double color line.
Renovation: The replacement of the aluminum wire in the old house decoration indicates that if the public renovated the old house, the original aluminum wire must be replaced with the copper wire. Because the aluminum wire is easily oxidized, its connector can easily catch fire. According to the survey, the incidence of electrical fires using aluminum wire is several dozen times that of copper wires. If only the switch and outlet are changed, it will bury potential safety hazards for the residents in the future.
In addition, a sufficient number of loops is essential for modern home life. With enough loops, a short circuit or other problem on one line will not affect the normal operation of other circuits. According to the area of ​​use, lighting circuit can choose two or three way, power socket three to four way, kitchen and bathroom go all the way, air-conditioning circuit two to three roads, one air-conditioning loop with up to two air conditioners.
In order to be beautiful and easy to check and replace, slotting and dark pipe laying are generally used. During the wiring process, the principle of "fire line into switch, zero line into the lamp head" should be followed.
Leakage protection In addition to air conditioning power outlets, other power outlet circuits should be equipped with leakage protection devices.
The number of outlets is now increasing in the number and variety of appliances for each household. Many households use pull-out socket boards to meet their electricity needs while ignoring security factors. Due to the accidental electrical shock and electrical fire accidents often caused by the temporary line in the room, it is important to remember that the socket board can only be used temporarily.
When decorating, you should consider increasing the number of fixed sockets in the wall. It is recommended to refer to the Hong Kong standard: 4 bedrooms per room, a group of 2.5 square meters in the living room, and a kitchen of 1.2 square meters.
Socket type for child protection against electric shock, should use safety cover with a safety cover; refrigerators, air conditioners should use their own independent, with protective grounding three-eye socket; bathroom is easy to wet, should not be installed ordinary socket and should use splash-proof water socket .
The installation position is generally 1.2-1.4 meters away from the floor, horizontal distance from the door frame 0.15-0.2 meters, the same indoor switch height should be the same; wall mounted socket not less than 1.8 meters from the ground, concealed 0.3 meters from the ground is appropriate. Of course, the specific installation location has to be determined by the placement of furniture and electrical appliances.
The installation requirements for single-phase two-eye sockets are: “zero left and right fire†when horizontally arranged, and “zero under fire†when vertically arranged; the zero line of three-eye socket must not be wrongly connected with the protective grounding cable.
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