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From the site survey to the line design, the wind farms in the South and North are so different

compared with the northern region, due to the complex geographical and climatic conditions in the south, there are also differences in the design of wind farms in the north and south. For example, heavy rainfall, thunderstorms, freezing disasters and frequent geological disasters in the South will have a lot of impact on the design of wind farms and improve the reliability of hydraulic systems, which are rare in the design of wind farms in the north

what are the differences in the design of the North-South wind farm road

site survey

as a necessary part of the line design, site survey has a direct impact on the accuracy of the design. Compared with the barren mountains in the north, the vegetation is relatively less, and the vegetation in the south is more dense, which has greatly hindered the site survey of the line. Because in mountainous areas with dense vegetation, GPS signals will be affected, directly affecting work efficiency; At the same time, the terrain of the southern mountainous area is relatively steep, which also has a direct impact on the site survey; In addition, the probability of meeting various aggressive animals in the mountains and forests in the south is also greater than that in the north

the above situation undoubtedly increases the difficulty, time and workload of the on-site survey of the south wind farm line

line electrical

line mode

due to frequent freezing rain disasters in the south, and compared with the northern region, the vegetation in the south is more dense, so the cable mode of wind farm lines in the south is far more than that in the north

the main reason for this is that if overhead lines are used, ice will accumulate on the road in case of freezing rain. When the ice accumulation reaches a certain degree, the line tower will not be able to load and eventually collapse. At the same time, due to the large number of forests in the south, the environmental impact assessment and Water Conservation Department also has relatively high requirements for lines, so many lines in the South adopt cable mode

in the north, due to the fact that the gas must be justified first, it is certain that the dimensional tolerance and climatic conditions of plastic parts formed by different plastics are different, so it is difficult to have serious icing on the line. Therefore, overhead lines are mostly used in the north, and cable methods can be partially or completely used only under special topographic conditions

lightning protection and grounding of fresh food used for packaging perishable

the rainfall in the south is larger than that in the north, with more thunderstorm days and shallow surface water, so the lightning protection and grounding of the road is different from that in the north

in terms of insulation design of Southern lines, if overhead lines are used, the number of insulators will be more than that of northern lines, and the requirements for insulation distance will be larger. In strong thunderstorm areas, the design will actively reduce the protection angle of the ground wire

the surface water in the south is shallow, and the soil moisture content will be relatively high, which has a certain impact on the corrosion of metal materials. In the selection of grounding materials, the requirements for corrosion resistance will be higher. The grounding material in the north is generally hot-dip galvanized round steel. In the south, the thickness of the galvanized layer of hot-dip galvanized round steel needs to be thickened, or other materials with better corrosion resistance, such as flexible graphite wire, etc

ice melting switch

ice melting switch this device is almost invisible in the north. In the south, the power Council requires some areas with serious ice accumulation to install ice melting switches at the outlet of the transmission line of the wind farm. Through the ice melting switch, the ice deposition of the conductor can be effectively controlled

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