A power flow calculation method considering the thermal characteristics of XLPE insulated cables
A cross-linked polyethylene, insulated cable technology, applied in computing, AC network circuits, electrical components, etc., can solve problems that have not been seen in reports
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[0053] The present invention is described in detail below in conjunction with accompanying drawing:
[0054] The thermal characteristic model of the cable: Different from the bare wire used in the overhead transmission line, the cable has a more complex layered structure. Taking the XLPE insulated cable as an example, its structure is roughly divided into a conductor, an insulating layer, a metal sheath layer and an outer layer ( including inner lining, armor and outer sheath), such as figure 1 shown. In order to meet the needs of different laying environments, there are many types of XLPE insulated cables, which correspond to different conductors, outer sheath materials and outer sheath structures for designers to choose according to actual conditions. This application takes the single-core YJV type cable (XLPE insulated polyethylene sheath, copper wire, unarmored cable) as the object of research. This type of cable is suitable for laying in cable trenches or direct burial i...
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