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Abruption Cross-Section and Bending Change of ACSR Energy Lines in Fire Environment

By C. D. Halevidis, S. D. Anagnostatos, A. D. Polykrati, E. I. Koufakis and P. D. Bourkas


An ACSR (Aluminum Conductors Steel Reinforced) power line, when it lies in a fire environment, can manifest a permanent elongation and change in bending, as when the conductors attain a temperature of over 500°C, a drastic fall of the mechanical strength of the steel core is caused. This work is a study about the conductor cross-section at the position of the abruption, in case it occurs. This cross section appears to be approximately 62.5% of the original value. Subsequently, two approximative methods of calculating the bending change of overhead lines are shown

Topics: Mechanical engineering and machinery, TJ1-1570
Publisher: SAGE Publishing
Year: 2010
DOI identifier: 10.1155/2010
OAI identifier:
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