Navegando por Assunto "OPGW cables ( Optical ground wire )"
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Item Acesso aberto (Open Access) Análise bidimensional dos efeitos das descargas atmosféricas em cabos OPGW utilizando o método ADI-FDTD(Universidade Federal do Pará, 2013-07-15) GOMES, Kellen Diane de Carvalho; DMITRIEV, Victor Alexandrovich; http://lattes.cnpq.br/0684541646225359In this work it is analyzed the behavior of the electrical current density in OPGW cables when they are subjected to lightning. For this analysis, two models of current were applied, since lightning has two main components that usually cause more damages in the cable: the impulsive component and the direct-current component. The numerical method used for computer simulations is the method ADI-FDTD (Finite Difference Time Domain of Alternating Directions Implicit), which is truncated by CPML technique (Convolutional Perfectly Matched Layers). Based on the behavior of current in the cable, it is done an evaluation to determine which lightning component can cause more damages to the OPGW cable.