EFFECTIVE LIFETIME ESTIMATE OF CRIMPED POWERLINE SPLICE CONNECTOR OPERATED AT HIGH TEMPERATURE

Conference · Tue Jan 01 00:00:00 EST 2008

OSTI ID:983814

Wang, Jy-An John ^[1]; Lara-Curzio, Edgar ^[1]; King, Jr, Thomas J ^[1]; An, Ke ^[1]; Hubbard, Camden R ^[1]

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1. ORNL

This paper addresses the thermal-mechanical properties and performance characteristics of full tension splice connectors under high temperature operation, in particular those used in overhead transmission and distribution lines. Due to the increase in power demand existing overhead power transmission lines often need to operate at temperatures higher than those originally considered for their design. This has led to the accelerated aging and degradation of splice connectors. The compressive residual stresses induced by the crimping process within the splice connector provide the clamping forces to secure the conductor and therefore, the determination of the state of compressive residual stresses in splice connectors is a necessary requirement to provide an accurate estimate of their service lifetime. This paper presents a protocol for integrating analytical and experimental approaches to evaluate the integrity of a full tension single-stage splice connector assembly.

• Research Organization: Computational Center for Industrial Innovation; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). National Center for Computational Sciences (NCCS)
• Sponsoring Organization: OE USDOE - Office of Electric Transmission and Distribution; Work for Others (WFO)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 983814
• Resource Relation: Conference: 2008 ASME Pressure Vessels and Piping Conference, Chicago, IL, USA, 20080727, 20080727
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
AGING
CONNECTORS
DESIGN
DISTRIBUTION
LIFETIME
MEETINGS
OPERATION
OVERHEAD POWER TRANSMISSION
PERFORMANCE
POWER DEMAND
PRESSURE VESSELS
RESIDUAL STRESSES
TEMPERATURE RANGE 0400-1000 K
TRANSMISSION
power line
single stage splice connector
thermal cycling
steel-reinforced core aluminum conductor