Wood cross-arms coated with polyurethane resin - tests and numerical simulations

Materials Research

Ruy Alberto Correa Altafim²  Jose Francisco Resende Da Silva¹  Diógenes Pereira Gonzaga²  Cacilda Ribeiro¹  João Godoy²  Heitor Curry Basso²  Benedito Bueno²  Carlito Calil Júnior²  Jose Carlos Sartori²  Ruy Alberto Pisani Altafim²  Alex Silveira¹ 

[1] ,University of São Paulo São Carlos School of Engineering São Carlos SP ,Brazil

关键词: wood cross-arm;    polymers;    electrical and mechanical tests;    computer simulations;   

DOI  :  10.1590/S1516-14392006000100015

来源: SciELO

【 摘 要 】

Brazil's electric power utilities have commonly employed native timbers as the main material for manufacturing cross-arms for distribution lines. However, the increasingly high costs of these timbers and Brazil's new environmental laws have contributed to change this situation, spurring research on new materials for application in transmission and distribution systems. This paper discusses two reforested wood species, Pinus elliottii and Eucalyptus citriodora, coated with castor oil-based polyurethane resins, as an alternative material for distribution line cross-arms, from the standpoint of their mechanical and electrical properties and their low cost. Numerical simulations and a complete description of the entire coating process are also part of this work.

【 授权许可】

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