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The Integrity of ACSR Full Tension Splice Connector at Higher Operation Temperature...

by Jy-an Wang, Edgar Lara-curzio, Thomas J King Jr, Joe Graziano, John Chan
Publication Type
Conference Paper
Book Title
IEEE Power Engineering Society General Meeting
Publication Date
Page Number
Conference Name
2007 IEEE Power Engineering Society General Meeting
Conference Location
Tampa, Florida, United States of America
Conference Sponsor
IEEE Power Engineering
Conference Date

Due to the increase in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than those used for the original design criteria. This has led to the accelerated aging and degradation of splice connectors, which have been manifested by the formation of hot-spots that have been revealed by infrared imaging during inspection. The implications of connector aging is two-fold: (1) significant increase in resistivity of the splice connector (i.e., less efficient transmission of electricity) and (2) significant reduction in the connector clamping strength, which could ultimately result in separation of the power transmission line at the joint. Therefore, the splice connector appears to be the weakest link in the electric power transmission lines. This paper presents a protocol for integrating analytical and experimental approaches to evaluate the integrity of a full tension single-stage splice connector assembly.