TY - CONF A1 - Stengel, Dominik A1 - Bardl, Richard A1 - Kühnel, C. A1 - Großmann, S. A1 - Kiewitt, W. T1 - Accelerated electrical and mechanical ageing tests of high temperature low sag (HTLS) conductors N2 - As part of the Best Paths project, work package 6 of the DEMO #4 combines the R&D tasks for repowering of transmission overhead line corridors. The aim of the presented research work is the electrical and mechanical investigation of high temperature low sag conductors (HTLS) and their respective accessories. In contrast to the conventional ACSR (aluminum conductor steel reinforced) conductors, new material combinations of HTLS technologies result in a better sagging behavior combined with an operation at higher temperatures. Because of missing operational experience, the ageing behavior of HTLS conductor technologies shall be analyzed regarding the operating parameters such as electrical, thermal and mechanical load. T2 - ICOLIM Conference 2017 CY - Strasbourg, France DA - 25.04.2017 KW - High temperature low sag conductors KW - Accelerated ageing KW - Long-term loading PY - 2017 SN - 978-1-5090-5132-8 SP - 1 EP - 6 AN - OPUS4-40040 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bardl, Richard A1 - Stengel, Dominik A1 - Kühnel, C. A1 - Großmann, S. A1 - Kiewitt, W. T1 - Accelerated electrical and mechanical ageing tests of high temperature low sag (HTLS) conductors N2 - As part of the Best Paths project, work package 6 of the DEMO #4 combines the R&D tasks for repowering of transmission overhead line corridors. The aim of the presented research work is the electrical and mechanical investigation of high temperature low sag conductors (HTLS) and their respective accessories. In contrast to the conventional ACSR (aluminum conductor steel reinforced) conductors, new material combinations of HTLS technologies result in a better sagging behavior combined with an operation at higher temperatures. Because of missing operational experience, the ageing behavior of HTLS conductor technologies shall be analyzed regarding the operating parameters such as electrical, thermal and mechanical load. T2 - International Conference on Live Maintenance (ICOLIM) 2017 CY - Strasbourg, France DA - 25.04.2017 KW - High temperature low sag conductors KW - Accelerated ageing KW - Long-term loading PY - 2017 AN - OPUS4-40041 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kiewitt, W. A1 - Bardl, Richard A1 - Kühnel, C. A1 - Loudon, D. A1 - Stengel, D. A1 - Wunkte, M. T1 - Comparative study of the long-term reliability of HTLS conductor systems N2 - In recent years, several high temperature low sag conductors (HTLS) have been developed and are now commercially available. Very few utilities have long-term experience with all the technologies. Moreover, most of the operational experience is at low temperatures. An independent testing program at maximum operational temperatures comparing most of the available technologies would provide useful guidance to utilities considering using such conductors. This paper describes the approach and results of an international research project assessing the long-term reliability of a wide range of commercially available high temperature conductor systems. Each system was exposed to 4,400 hours of simultaneous mechanical and electrical stresses. A set of standard mechanical and electrical tests were carried out to determine any changes. A conventional ACSR conductor was also tested and provided a validation that the testing program was realistic. The majority of the conductor systems performed satisfactorily. However the ACSS system joint resistance and the grease on the TACSR performed poorly. T2 - CIGRE Sesstion 2018 CY - Paris, France DA - 26.08.2018 KW - HTLS KW - Conductor KW - Freileitung PY - 2018 SP - B2-204,1 EP - 10 AN - OPUS4-46028 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühnel, C. A1 - Bardl, Richard A1 - Stengel, Dominik A1 - Kiewitt, W. A1 - Grossmann, S. T1 - Investigations on the mechanical and electrical behaviour of HTLS conductors by accelerated ageing tests N2 - To cope with future requirements, the transfer capacities of distribution systems as well as of transmission systems in Europe need to be increased. Therefore repowering of existing overhead lines with high temperature low sag con-ductors (HTLS) can be one interesting possibility. Because of limited experiences with that technology, current re-search of TU Dresden, the Federal Institute for Materials Research and Testing (BAM) and 50Hertz Transmission GmbH investigates the ageing behaviour of several differ-ent HTLS technologies in a consortium with other Euro-pean partners. In this context, accelerated ageing tests of conductors and its corresponding fittings with combined mechanical and electrical loads are done. To evaluate the changes due to ageing, several mechanical tests of the con-ductors are carried out and the contact behaviour of the fittings is analysed. T2 - CIRED Conference CY - Glasgow, Scotland, UK DA - 12.06.2017 KW - HTLS KW - High temperature low sag KW - Resistance KW - Self-damping PY - 2017 SP - Paper 0200, 1 EP - 5 AN - OPUS4-40869 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -