1. What are the main requirements for the reconstruction of Changsha Hydropower Station?
Renovation of Changsha 1 hydropower station, installation of water pipes and repair under pressure.
Water supply pipe: water supply pipe damage treatment, galvanized pipe transformation and replacement, aluminum alloy pipe, composite pipe, PPR pipe installation, maintenance and replacement.
Valves: maintenance, repair and replacement of water pipes and PVC, maintenance and replacement of cast iron pipes and single-layer culverts, and installation of main building in sewage pipeline reconstruction.
Electrical equipment: drain toilet, drain valve, drain basin, booster pump, toilet water tank drainage, main valve replacement box accessories replacement, washbasin, valve triangle, keys, etc.
Hydropower reconstruction in Changsha II. Circuit transformation and installation and maintenance design.
Home high-voltage circuit: common faults and treatment of home circuit maintenance, installation of various switch lighting and hardware pendants, and transformation of aging home network.
Powerful circuit tools: transformation, modification and maintenance of professional electrical equipment in the factory.
Intelligent circuit, weak current maintenance ability: install home network cable, install network room, and integrate network wiring.
Second, matters needing attention in the reconstruction of Changsha Hydropower Station
Hydropower Changsha 1 reconstruction, this wire has no insulated tube. During the construction process, the cable is directly inserted into the wall, the cable does not include an insulating tube, and the cable joint is directly exposed. There are hidden dangers: the cable may be damaged for some reason, and it cannot be replaced after being disconnected. Insulating sheath must be placed correctly, and the joints must not be exposed, and the joints between junction boxes are not allowed.
Changsha hydropower transformation 2. Cable color separation. All cables are colored. There are hidden dangers: once there is a problem with the line, it will be detected again. In order to operate correctly, the wiring fabric of the lower shell must be wrapped with different marks. The live wire must be red, green and yellow, the neutral wire must be blue, and the two-color wire must be grounded.
Rebuilding hydropower Changsha 3. Repeat wiring. A lot of repeated wiring wastes materials, funds and material resources. There are hidden dangers: once the line is aging, it is difficult to detect it in a chaotic network. Standard operation shall not exceed 40% of pipeline capacity. The line direction can be in one tube, and the strong and weak current can be used separately, so the parallel spacing between tubes is not less than 50cm.
Changsha No.4 Hydropower Station was rebuilt without connecting fittings, and the length was not enough. Because the length of the insulating tube is not enough, no connecting fittings are placed at the corner, and a part of the connection with the junction box is exposed. There are hidden dangers: there is a risk of electric leakage. Standard operation must have a connection between the nozzle and the junction box.
Transforming hydropower Changsha 5. Put strong and weak electricity together: save labor and effort, and put strong and weak electricity in the pipe. There are hidden dangers: telephone and internet access will have an impact and there is a fire risk. Standard operation must be separated from the production line.
Third, the knowledge of household water and electricity maintenance.
Hydropower reconstruction in Changsha 1. Drainage facilities.
Under normal circumstances, in the process of decoration, kitchen and bathroom equipment are moved and replaced. However, when building water pipes, attention should be paid to the convenience of viewing and maintenance of water meters. Pay attention to the installation of pipes during installation. If it is reliable, the thickness of the decorative wall should be considered at the same time, which is convenient for future pipeline maintenance and removal.
Transforming hydropower Changsha II. Natural gas and natural gas.
In the renovation and maintenance of natural gas and gas, you should ask the construction personnel to test the air pressure before putting it into use. You need to pay attention to the construction of gas meters, and do not install them in hidden places, otherwise it will look inconvenient. Timely discover problems such as pipeline leakage.
Changsha hydropower transformation 3, electrical
In electrical transformation and maintenance, the design of the original line must be considered. Lighting, power socket, air conditioner, etc. It is best to use bypass control to distribute the load on the line reasonably.
Renovation of hydropower Changsha 4. Water heating
After modifying the piping system, the inner pipe cannot be changed. If unauthorized modification will affect the use of the whole system, the position of the bypass pipeline and radiator can be changed. Pay attention to the converted water pressure. Try to see if it is tight, and then use it.
The maintenance of hydropower generation is very important. Be sure to choose a regular decoration team and professional construction personnel. It is also necessary to carry out relevant supervision in the construction process to reduce hidden dangers.