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Discussion of Aluminum Encapsulated Carbon Fiber Composite Cores

Learn about the Aluminum Encapsulated Carbon Fiber Composite Cores. Know about its benefits. Visit >> www.ctcglobal.com

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Discussion of Aluminum Encapsulated Carbon Fiber Composite Cores

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  1. Discussion of Aluminium Encapsulated Carbon Fiber Composite Cores www.ctcglobal.com May 2020

  2. Introduction CTC Global is an ACCC conductor manufacturing company that was founded to develop, certify and deploy advanced technologies to improve the efficiency, capacity, reliability and resiliency of the electric power grid. Our primary product is high-capacity, low-sag CTC Global ACCC Conductor solutions. www.ctcglobal.com

  3. The general statement: The Carbon fiber core-based conductors offer higher-strength, lighter-weight and very low coefficients of thermal expansion to mitigate conductor sag. www.ctcglobal.com

  4. A key design consideration for these conductors The fact that when carbon fiber is in physical contact with aluminum in the presence of an electrolyte – such as water – a galvanic reaction occurs which results in corrosion of the aluminum conductor strands.  Obviously this would undermine the service life of an overhead conductor. www.ctcglobal.com

  5. CTC Global ACCC Conductor  CTC’s ACCC conductor uses an integrated glass fiber external layer to create the necessary galvanic barrier and to provide improved core flexibility and toughness.  This design has stood the test of time – ACCC conductors have successfully logged well over 25 million hours of operation in a variety of terrains, conditions and applications globally since 2004. www.ctcglobal.com

  6. Testing part In the case of the aluminum encapsulation design, a hermetic seal was created between the aluminum and the carbon fiber to prevent moisture ingress and the resulting galvanic reaction.  This design appeared to be viable. While the exact chemical mechanism is unknown, the results are clear: the aluminum encapsulated core cannot be operated at high temperatures.   www.ctcglobal.com

  7. Two mechanical concerns which caused CTC to choose the integrated one-piece design The first was the likelihood that the aluminum encapsulation will loosen and separate from the carbon fiber over time due to creep and cyclical thermal loading. The second was the fact that the soft aluminum encapsulation would cause dead-ends and splices to lose their grip over time or under heavy loading.  Peeling back or removing the aluminum to avoid this problem would likely result in exposure to the galvanic reaction mentioned earlier. www.ctcglobal.com

  8. Recommendations: CTC recommends that utilities considering this type of product do not use them for high-temperature applications, for long-spans or in areas where high wind or heavy ice loads are anticipated.   Endnote: Certain products manufactured in Korea and China appear to infringe on various international patents. www.ctcglobal.com

  9. Contact Us  Website:www.ctcglobal.com Phone: +1 949 428 8500 Fax: +1 949 428 8515 Email: info@ctcglobal.com Thank You

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