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

Author(s): Altafim Ruy Alberto Correa | Silva Jose Francisco Resende da | Gonzaga Diógenes Pereira | Ribeiro Cacilda | Godoy João | Basso Heitor Curry | Bueno Benedito | Calil Júnior Carlito | Sartori Jose Carlos | Altafim Ruy Alberto Pisani | Silveira Alex

Journal: Materials Research
ISSN 1516-1439

Volume: 9;
Issue: 1;
Start page: 77;
Date: 2006;
Original page

Keywords: wood cross-arm | polymers | electrical and mechanical tests | computer simulations

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.

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Tangokurs Rapperswil-Jona

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Robotic Process Automation Switzerland