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Composite Technology Completes Sag Characterization Testing

  • Friday, 5th March 2004
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Composite Technology Corporation (CTC) has completed its assessment of the high temperature sag and tension behaviour of ACCC (Aluminum Conductor Composite Core) cable.

The results found that the increase in measured sag of the ACCC cable from 21.6 degrees Celsius up to 183 degrees Celsius was only 4-1/2 inches. At the same current level (ampacity), conventional ACSR sag increased over 60 inches and the temperature climbed to 240 degrees Celsius.

The High Temperature Sag tests were conducted at the Toronto facility of Kinectrics, one of North America’s premier testing facilities. Testing was done pursuant to stringent protocols, which were designed to directly compare specific critical operating characteristics of conventional ACSR cable, the current industry standard, and CTC’s new composite core cable.

Benton Wilcoxon, CEO of CTC said, “”The results of these tests 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. 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.””


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