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dc.contributor.authorSantos, T. F. A.
dc.contributor.authorVasconcelos, G. C. [UNESP]
dc.contributor.authorSouza, W. A. de
dc.contributor.authorCosta, M. L. [UNESP]
dc.contributor.authorBotelho, E. C. [UNESP]
dc.identifier.citationMaterials & Design. Oxford: Elsevier Sci Ltd, v. 65, p. 780-788, 2015.
dc.description.abstractThe increasing demand for electrical energy and the difficulties involved in installing new transmission lines presents a global challenge. Transmission line cables need to conduct more current, which creates the problem of excessive cable sag and limits the distance between towers. Therefore, it is necessary to develop new cables that have low thermal expansion coefficients, low densities, and high resistance to mechanical stress and corrosion. Continuous fiber-reinforced polymers are now widely used in many industries, including electrical utilities, and provide properties that are superior to those of traditional ACSR (aluminum conductor steel reinforced) cables. Although composite core cables show good performance in terms of corrosion, the contact of carbon fibers with aluminum promotes galvanic corrosion, which compromises mechanical performance. In this work, three different fiber coatings were tested (phenol formaldehyde resin, epoxy-based resin, and epoxy resin with polyester braiding), with measurements of the galvanic current. The use of epoxy resin combined with polyester braiding provided the best inhibition of galvanic corrosion. Investigation of thermal stability revealed that use of phenol formaldehyde resin resulted in a higher glass transition temperature. On the other hand, a post-cure process applied to epoxy-based resin enabled it to achieve glass transition temperatures of up to 200 degrees C. (C) 2014 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipANEEL RD program
dc.publisherElsevier B.V.
dc.relation.ispartofMaterials & Design
dc.sourceWeb of Science
dc.subjectAluminum conductoren
dc.subjectCarbon fiber-reinforced polymeren
dc.subjectGalvanic corrosionen
dc.subjectTransmission cablesen
dc.titleSuitability of carbon fiber-reinforced polymers as power cable cores: Galvanic corrosion and thermal stability evaluationen
dcterms.rightsHolderElsevier B.V.
dc.contributor.institutionCompanhia Energet Minas Gerais CEMIG
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationCPqD, Campinas, SP, Brazil
dc.description.affiliationCompanhia Energet Minas Gerais CEMIG, Belo Horizonte, MG, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Mat & Technol, Guaratingueta, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Mat & Technol, Guaratingueta, SP, Brazil
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt
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