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Author Altafim, R.A.C. ♦ Woschitz, R. ♦ Ribeiro, C. ♦ Muhr, M. ♦ Silva, J.F.R. ♦ Calil, C. ♦ Basso, H.C. ♦ Sumereder, C. ♦ Altafim, R.A.P. ♦ Silveira, A.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2005
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
Subject Keyword Prototypes ♦ Polymers ♦ Partial discharges ♦ Materials testing ♦ Conducting materials ♦ Costs ♦ Power supplies ♦ Resins ♦ Power distribution ♦ Temperature
Abstract Brazil's vast territory and huge forested regions have contributed to the widespread use of traditional crossarms made of native wood species in distribution lines. However, this situation is changing due to the increasingly high cost of native species and Brazil's environmental laws. In response to these changes, electric power suppliers have been seeking alternatives, and prototypes of reforested wood crossarms (such as Eucalyptus citriodora) impregnated with polymer (castor oil-based polyurethane resin) have been studied for application as mechanical supports for electrical power distribution systems, with very satisfactory results. This paper discusses mechanical and electrical tests conducted on this new material under critical conditions of temperature and relative air humidity. Also presented are the results of electrical tests conducted at Graz Technology University's Institute of High Voltage Engineering and System Management in Austria to analyze the material's insulation performance under electrical stress particularly under partial discharge during critical operating conditions
Description Author affiliation: Sao Carlos Sch. of Eng., Sao Paulo Univ. (Altafim, R.A.C.)
ISBN 0780391454
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-10-23
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 1.56 MB
Page Count 4
Starting Page 225
Ending Page 228


Source: IEEE Xplore Digital Library