Title |
Improved Mesh Grounding Electrode Model by Changing Arrangements of Internal Conductors of the Mesh Grounding Electrode |
Authors |
Yong-Sik Shim ; Hong-Kyu Choi ; Tai-Hoon Kim ; Young-Joo Song |
DOI |
http://dx.doi.org/10.5207/JIEIE.2010.24.6.060 |
Keywords |
Oblique-Shaped Equidistance Grounding Grid ; Mesh Voltage ; GPR ; Ground Resistance |
Abstract |
Mesh grounding electrodes in Korea and abroad are designed as lattice-shaped equidistance grounding grids. In case of a lattice-shaped grounding Grid, however, there is a problem of higher touch voltage at the corner of the grid relative to the center. To overcome this problem, we used oblique-shaped equidistance grounding grid to reduce the area of the corner where mesh voltage occurs. As a result the mesh voltage was reduced. Therefore, this paper suggests the use of oblique-shaped grounding grid instead of the existing lattice-shaped ones. It applied the same grounding design dimensions for both lattice-shaped and oblique-shaped grounding grids, compared and analyzed mesh voltage, GPR, ground resistance, total length of grounding conductor, verified that oblique-shaped grounding grid is superior to the lattice-shaped. |