Hybrid steel–composite cross-arm for distribution power lines

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dc.contributor.authorZemčík, Hana
dc.contributor.authorKroupa, Tomáš
dc.contributor.authorVaňková, Tereza
dc.contributor.authorZemčík, Robert
dc.contributor.authorPihera, Josef
dc.contributor.authorProsr, Pavel
dc.contributor.authorKadlec, Petr
dc.contributor.authorŠroubová, Lenka
dc.contributor.authorMüllerová, Eva
dc.contributor.authorMartínek, Petr
dc.contributor.authorPavlica, Richard
dc.contributor.authorKomárek, Josef
dc.contributor.authorFriedl, Jan
dc.contributor.authorPolanský, Radek
dc.date.accessioned2023-11-27T11:00:17Z
dc.date.available2023-11-27T11:00:17Z
dc.date.issued2023
dc.description.abstract-translatedThis paper describes the development of electrically insulating hybrid steel–composite cross-arm for mediumvoltage overhead distribution power lines with three conductors. The main goal was to achieve substantial weight savings ompared to a common steel cross-arm with three ceramic insulators widely used in the Czech Republic. The structure has been designed as a combination of two main composite components – a pultruded horizontal profile and a braided vertical conical tube. These components are connected by a steel locking component which also serves for attaching the whole cross-arm to common concrete utility poles. The hybrid cross-arm is conceived to insulate electrical current in the default configuration thanks to the properties of the glass fiber reinforced composite materials, yet additional insulating elements can be used to further increase the electrical insulation distance. The materials and components used for the construction are chosen by combining finite element simulations of mechanical and electrical behavior with experimental testing and verification of important characteristics on selected substructures. The final design of the cross-arm is then manufactured and subjected to long-term testing in real-life environmental conditions. The achieved reduction of weight exceeds 50% while maintaining the mechanical rigidity and strength of the steel solution as well as the required insulation properties. The future trend of the cross-arm development is aiming at the weight reduction and increase of manipulation capabilities resulting in lowering many additional costs. In this work the designed cross-arm has half the weight of the original one.en
dc.format
dc.format14 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationZEMČÍK, H. KROUPA, T. VAŇKOVÁ, T. ZEMČÍK, R. PIHERA, J. PROSR, P. KADLEC, P. ŠROUBOVÁ, L. MÜLLEROVÁ, E. MARTÍNEK, P. PAVLICA, R. KOMÁREK, J. FRIEDL, J. POLANSKÝ, R. Hybrid steel–composite cross-arm for distribution power lines. COMPOSITE STRUCTURES, 2023, roč. 322, č. 15 October 2023, s. nestránkováno. ISSN: 0263-8223cs
dc.identifier.document-number1055123000001
dc.identifier.doi10.1016/j.compstruct.2023.117415
dc.identifier.issn0263-8223
dc.identifier.obd43940509
dc.identifier.uri2-s2.0-85168009555
dc.identifier.urihttp://hdl.handle.net/11025/54842
dc.language.iso
dc.language.isoenen
dc.project.IDTH03020355/Kompozitní konstrukce v elektrotechnice EKOMcs
dc.publisherElsevieren
dc.relation.ispartofseriesComposite Structuresen
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelůmcs
dc.rights© Elsevieren
dc.rights.accessrestrictedAccessen
dc.subject.translatedcomposite materialen
dc.subject.translatedglass fibersen
dc.subject.translatedenvironmental degradationen
dc.subject.translatedstrengthen
dc.subject.translatedfinite element analysis (FEA)en
dc.subject.translatedmechanical testingen
dc.subject.translatedbraidingen
dc.subject.translatedjoints/joiningen
dc.subject.translatedpultrusionen
dc.subject.translatedcross-armen
dc.subject.translatedmedium voltage power linesen
dc.subject.translatedinsulatorsen
dc.subject.translatedhybrid structureen
dc.titleHybrid steel–composite cross-arm for distribution power linesen
dc.typečlánekcs
dc.typearticleen
dc.type.status
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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