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Let's talk about electrical installation today:
First, in home decoration, it is necessary to involve strong electricity (lighting, electrical appliances) and weak electricity (television, telephone, audio, network, etc.).
Circuit lines in modern decoration generally require buried dark lines, once a problem, it is very troublesome to repair, so the wire must be selected better, currently in the decoration market, strong wire material generally choose XX brand hard core sheathed wire, Weak wire material is generally selected XX brand, the quality of these two brands of wire is still guaranteed. Remember, this part of the money can't be saved! ! !
Second, the selection of wire specifications: home decoration, according to national regulations, lighting, switches, sockets use 2.5 square meters of wire, air conditioning to use 4.0 square wire, water heaters use 6.0 square wire. However, in actual operation, many people use 1.5 square wires for the lighting line to save money. . . .
3. At present, there are many ways to install electricity. I often hear a lot of customers talking about price issues. Some people say that he is looking for 10 yuan/sq., and there are still 12 yuan, and there are 15 yuan. Oh, actually, everyone ignores it. One of the key issues is the practice issue. The main current practice is:
1. Functional approach: that is, there is no need to divide many groups, as long as it can achieve the purpose of electricity use. Most of these practices are real estate developers to provide water and electricity to install, a three-bedroom, two-room house is divided into 4 sets of lines. This kind of practice hates insecurity. Everyone knows that for all such hydropower installations, everyone must destroy all of them. This practice is generally 10 yuan practice.
2. Grouping: Grouping means that the lighting of each space must be grouped separately, and the air-conditioning in each space must be grouped separately. In this case, a three-bedroom, two-room house requires 3 rooms, 1 living room, and a restaurant. 1 group, 2 bathrooms, 2 kitchens, 1 kitchen, 3 air conditioners in 3 rooms, 1 living room air conditioner, and a total of 1 team. Each group needs a separate air-to-air control. If you use ordinary PVC pipe threading, it is 12 yuan / square labor costs.
3, with reference to the practice of 2, with cold pipe threading, labor costs is 15 yuan / square, because each elbow need to use pipe bender for elbow, it is time-consuming, so expensive. The most customers choose this practice.
4, referring to the practice of 3, the strong and weak electricity slot layout, to increase 3 yuan, is 18, plainly, is to increase the slotted money.
5, the national standard's approach will be 22 yuan, and no horizontal slot, just open the vertical slot, which is what I want to talk about today.
Fourth, the basic principles of hydropower construction: 
One principle of hydropower construction is that if you walk on the roof and the roof cannot go, consider taking the wall and the wall cannot go before considering the ground. Why? The top line is inside the ceiling or the plaster line. Even if there is a fault, the maintenance is convenient and the loss is not great. If all goes, the inspection will lift the floor, and the loss will be great. Also, the ground is concrete. Structure, to bury the line, will inevitably hurt the concrete layer, or even steel, Oh, very dangerous ah. Many workers will go to the ground in order to save time. . . . .
Specifications and precautions for hydropower
The standard construction of hydropower and its precautions “Hydropower reform†is a hidden project. It occupies an extremely important position in the renovation. I believe its importance can be understood by all friends, especially water. Once an accident occurs, Oh, he Losses do not say that it hurt the neighbors, huh, huh. . . Really sloppy ah, do not lose the big, safety first! ! !