%0 Generic %1 figueroa2013compact %A FIGUEROA, L %A RAULT, T %D 2013 %K Field Line Magnetic Overhead maintenance %T Compact overhead lines: maintenance operations versus magnetic field mitigation %X A compact transmission overhead line is defined by voluntarily reduced dimensions of supports. These compact towers comply with the standard regarding the safety distances with the third parties. The compactness and the use of surge arresters lead to an improvement of the quality of the service. In addition, two aspects are beneficial regarding the acceptability of overhead lines. Firstly, compact dimensions result in a lower visual impact compared with standard lines and a more natural integration into their environment. Secondly, compact lines significantly reduce the low-frequency magnetic field generated by the transmission lines. With these kinds of towers, the corridors corresponding to a given limit can be reduced by some tens of percent. To guarantee a maximal availability of the overhead transmission lines for the electricity network operation, RTE widely uses live-line working for the maintenance, in particular involving helicopters. These techniques require adapted internal geometric spacing and conductor configurations to guarantee the safety of linemen: the procedures require minimal and incompressible safety distances. These maintenance constraints are not necessarily compatible with the compactness option. For the 63 and 90 kV voltages, the resulting height of towers and conductors are relatively low. Consequently, adapting the work procedures make it possible to consider live work maintenance from the ground. Further reducing the dimensions of the towers would imply to give up the live line works.

@conference{figueroa2013compact, abstract = {A compact transmission overhead line is defined by voluntarily reduced dimensions of supports. These compact towers comply with the standard regarding the safety distances with the third parties. The compactness and the use of surge arresters lead to an improvement of the quality of the service. In addition, two aspects are beneficial regarding the acceptability of overhead lines. Firstly, compact dimensions result in a lower visual impact compared with standard lines and a more natural integration into their environment. Secondly, compact lines significantly reduce the low-frequency magnetic field generated by the transmission lines. With these kinds of towers, the corridors corresponding to a given limit can be reduced by some tens of percent. To guarantee a maximal availability of the overhead transmission lines for the electricity network operation, RTE widely uses live-line working for the maintenance, in particular involving helicopters. These techniques require adapted internal geometric spacing and conductor configurations to guarantee the safety of linemen: the procedures require minimal and incompressible safety distances. These maintenance constraints are not necessarily compatible with the compactness option. For the 63 and 90 kV voltages, the resulting height of towers and conductors are relatively low. Consequently, adapting the work procedures make it possible to consider live work maintenance from the ground. Further reducing the dimensions of the towers would imply to give up the live line works.}, added-at = {2021-02-12T13:05:42.000+0100}, author = {FIGUEROA, L and RAULT, T}, biburl = {https://www.bibsonomy.org/bibtex/2ac5af8ee2fd17ec94e1bdb029286e9a8/ceps}, interhash = {e826f7ab764756bf1102a2bded36a818}, intrahash = {ac5af8ee2fd17ec94e1bdb029286e9a8}, keywords = {Field Line Magnetic Overhead maintenance}, timestamp = {2023-12-21T08:30:21.000+0100}, title = {Compact overhead lines: maintenance operations versus magnetic field mitigation}, year = 2013 }