Composite Technology Completes First Overhead ACCC Installation

13 August 2004

CTC has completed the first overhead installation of its proprietary Aluminum Conductor Composite Core (ACCC) innovative, high-performance electrical power cable.

The installation is approximately two miles of ACCC conductor installed at the Electrical Power Research Institute (EPRI) facilities in Haslet, Texas. The installation used CTC’s ACCC “Drake” size utility power cable, spanned over five utility support structures, and utilized compression dead ends and splices jointly developed by CTC and FCI/Burndy for installing the cable.

A line crew from Great Southwestern Construction, a member of the MYR Group and a leading supplier of a full range of services within the electrical construction industry, completed the installation with assistance from CTC’s technical support personnel. Installation hardware, tools and dies used are conventional industry standard products, with the exception of the compression dead end and splice assemblies that have been specifically designed for use with CTC’s ACCC cable. The ability to use conventional equipment and installation methods means customers can now expect to install ACCC cable in similar time periods, and at similar costs, as existing cable with minimal training for their construction personnel.

“Completion of this installation is a vital step in moving forward with our utility customer engagements. It’s important to illustrate our cables’ ease of installation to customers as we prepare for commercial projects over the coming months,” said Benton Wilcoxon, CTC Chairman and CEO. “We are confident ACCC cable will make a significant contribution to the capacity and reliability of the power grid in the United States.”

“Great Southwestern has worked closely with CTC on installation procedures for their ACCC cable. This project validated our belief that ACCC cable will be as easy to install as conventional utility cable,” said David Ayers, Great Southwestern director – business development. “Our construction crew used their standard installation methods and equipment, and the CTC hardware was easy to integrate into the work flow.”

ACCC cable is superior to existing transmission and distribution cable in a number of key performance areas. Through CTC’s advanced, proprietary composite technology, ACCC offers double the current carrying capacity when compared to most standard conductors and can dramatically increase system reliability by virtually eliminating problematic high-temperature cable sag.

Earlier this year, NetComposites reported on CTC’s sag and tension results of the ACCC (Aluminum Conductor Composite Core) cable. Those results confirmed that CTC's ACCC Cable and its composite core were minimally affected by temperatures that reached twice the normal operating temperature of conventional ACSR cable. According to CTC, the measured sag of the ACCC cable was over 90% less than that of the conventional cable, as measured side by side. Under identical ""peak"" electric loads; the ACCC cable operated at temperatures 25% cooler than ACSR. The characteristics of substantially improved energy efficiency, cooler operating temperatures, and significantly higher margins of safety will not only serve to cost effectively improve the capacity and reliability of our nation's grid, but will also help conserve fuel supplies, protect natural resources, and reduce green-house gas emissions.

“We are excited about working with CTC on their innovative ACCC cable,” said Tip Goodwin, EPRIsolution’s manager of technology delivery. “EPRI has spent over 30 years helping to find innovative ways of solving the toughest problems facing the energy industry. We will have the opportunity to monitor the cable’s mechanical performance over the next two years through changing climatic conditions.”

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