Electric power industry consulting
Traditionally, the concept of “transposition” was used mainly for overhead lines (OHL) with a voltage of 330 kV and higher. For OHLs, the concept of “transposition” means a periodic change in the relative position of the three phase wires ABC. However, the situation has changed after the appearance of single-core cables with XLPE-insulation – the
Faults on cable terminations (as well as cable joints) are a significant problem of cable lines. Termination fault also means that a section of cable inside and near the termination may be damaged too. Therefore, for the installation of a new termination instead of broken one, not only new termination itself is required, but also
In addition to cable and overhead lines, there are mixed lines when, for various reasons, part of the line route is made as an overhead line, and part as a cable one. At the junctions of cable and air sections, special “transition points” have to be equipped. There are a huge number of transitional point
On today’s photo there is a nice modern bright transition tower (pylon, support) for mixed cable and overhead line. What can be advised to improve this facility next time? Unfortunately, many details are not so good:✅ Link-boxes for cable screens.✅ Black pipes which protect cables above the ground level.✅ Red corrugated pipes which protect cables