## 3 Electrode Station Configuration
### General Remarks
However, this does not occur in the area of the frame that has been set out of operation, although it does not exceed the value of 1.55 V/m, which is below 2.5 V/m, in all cases; therefore, no issues arise (regarding the safety of the diver) when maintaining the frames. * The developed absolute potentials and the corresponding values of the electrode station resistance, with respect remote earth, are much better (21.87 kV, 18.74 \(\Omega\)) compared to all previous configurations. * In the field behaviour results, there are no longer similarities in the case of a single frame not operating, due to the asymmetry of the array layout. A critical role in the effect beyond the dam is played by the first and second frames of Figure 13, since, when these two frames are not loaded, the critical zone outside the dam is significantly reduced. A correspondingly adverse effect (in the critical zone outside the dam) is the non-operation of the fifth frame (as it does not negate part of the electric field of the sixth frame), with the consequence that the most unfavourable value then appears, regarding the critical zone beyond the dam. From the study of the results for the region of Stachtoroi, the following emerges:  
* The length of the critical zone (along the Oy semi-axis) reaches up to 44.94 m (i.e., there is an inland deviation of 17.44 m) when the station is fully loaded, with the fourth frame out of operation (the distance between the shores bridging the complete dam is 55 m long). The length of the critical zone (along the Oy\({}^{/}\) semi-axis) reaches 51.61 m, that is, there is an inland deviation of 24.11 m during the full loading of the station, with the first frame out of operation. The width of the critical zone (along the Ox\({}^{/}\) semi-axis) reaches 48.12 m. That is, an inland deviation occurs up to 26 m (distance between the inner face of the dam and the coast 22.5 m) during the full loading of the station, with the first frame out of operation, due to the formed bay at Stachtoroi (according to Figure 12). So, practically, the influence zone within the land extends laterally up to 25 m in total. * The width of the critical zone (along the Ox semi-axis) reaches 32.55 m when the station is fully loaded and with the fourth frame out of operation. The critical zone outside the dam extends 26.6 m (with a crest width of 5 m and a suspension distance of at least 1 m), which is better than all other configurations. * The deviation in the maximum developing electric field strength of the electrode station compared to a single frame (19.49 V/m against 17.96 V/m according to Table 11 in [2])is of the order of 8.5%, which is significant, slightly greater than that in the second configuration (19.08 V/m according to Table 1) and smaller than those in all other configurations. * In Figure 28b, areas between the electrode frames are shown, where the electric field strength decreases significantly below 1.25 V/m. However, this does not occur in the area of the frame that is out of operation, although it does not exceed the value of 2.26 V/m, which is below 2.5 V/m in all cases; therefore, no issues arise (regarding the safety of the diver) when maintaining the frames. * The developed absolute potentials and the corresponding values of the electrode station resistance, with respect to remote earth, are slightly worse (17.84 kV, 15.29 \(\Omega\)) compared to the first configuration (17.30 kV and 14.82 \(\Omega\) according to Table 15 in [2]) and better over all other configurations. * In the field behaviour results, there are no longer similarities in the case of a single frame not operating, due to the asymmetry of the array layout. A critical role in the effect beyond the dam is played by the second frame of Figure 14, since, when it is not loaded, the critical zone outside the dam is significantly reduced.