List of Hydropower Installation MaterialsStrong Electricity [Contracting]
Project Unit Price
Concealed Pipeline 2.5mm232 Yuan/m Single Pipe
Decorative Open Line 2.5mm222 Yuan/m Single Pipe
Open Pipeline 2.5mm218 Yuan/m
Installation Dark Box86×86 10 yuan/pc
installation of open box 86×86 5 yuan/pc
through wall eye bearing wall 40 yuan/pc, non-load-bearing wall 15 yuan/pc , Weak current installation
Weak current installation materials include lines and pipes. Lines include telephone lines, network cables, TV lines, broadband lines and other wires used for various household appliances. The line pipe is the PVC rigid flame retardant electrical pipe, the diameter D16 line pipe 3 weak current (telephone, TV network cable), pass through the pipe separately; general switch socket installation bottom box 86 type price 10 yuan each, 118 type 15 yuan each , add 16 channels of information integration box plus 160 yuan per set. In addition, in the process of hard installation of water and electricity, it is necessary to ensure that there are no joints in the pipe. The price of the dark pipe is 28 yuan per meter, and the price of the open pipe is 18 yuan per meter. In addition, the required materials are: 1PVC line pipe, thickened cold-formed pipe, electric wire, etc.
lamps installation and panel water and electricity installation material list The following charges are 7 yuan/piece, more than 30 pieces are 5 yuan/piece, and the light strip is 30 yuan/piece.
3. Waterway Reconstruction
Waterway renovation is also a "heavy and colorful" part of the water and electricity installation expenses, and the householder must pay special attention. Among them, the data of waterway transformation are as follows: the hidden installation of 20PP-R upper water pipes is 60 yuan per meter, and the exposed 20PP-R upper water pipes are 45 yuan per meter. In addition, the installation price of the 50PVC pipe is 60 yuan per meter. It should be noted that the pipeline is Weixing or Jinde pipe, and the water is Liansu pipe.
Water pipe renovation (PP-R pipe) is priced at 38-46 yuan per meter.
The drainage pipe renovation (pipe diameter of 50 and below) costs 50-80 yuan per meter.
The valve diameter of 20mm is 65 yuan per unit, and the unit price of 25mm is 80 yuan.
The unit price of excavating the toilet sedimentary layer is 60 yuan per square meter.
PS: Precautions for water and electricity renovation
1. The installation location and quantity of switches and sockets should be carefully considered during wiring, and the principle is that more should not be less.
2. Under normal circumstances, the zero line is blue, the live line is red, and the ground line is a yellow-green two-color line.
3. The cross-section of the entry line of each house should not be less than 10 square millimeter , so for ordinary families, 1.5 square millimeters are used for lamps, and 2.5 square millimeters for switches, sockets, and grounding lines. For the installation of high-power electrical appliances such as air conditioners, a line of 4 square millimeters should be taken separately. For the entire line, the number of branch circuits should not be too small. Generally, the lights should go one way, the air conditioner should go two ways, and the sockets should go three to four ways. The advantage of this is that once a short circuit or other problem occurs in a certain line, the scope of the power outage is small and will not affect the normal work of other lines.
4. The construction principle of hydropower is that if you go to the top and not the ground, you can't go to the top. If you consider going over the wall, you should consider going to the ground.
5. Specifications of PPR water pipes: water pipes can be divided into 20mm, 25mm and 32mm according to their inner diameters, of which 20mm is relatively thin, commonly known as 4 pipes, 25mm is commonly known as 6 pipes (6 pipes are recommended for home improvement), 32mm According to the wall thickness, it can be divided into 2.8mm and 4.2mm, 2.8 is cold water pipe, 4.2 is hot water pipe, generally we use 4.2mm thick.
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