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The Importance of the ASTM B-987 Standard for Carbon Fiber Core Conductors

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The Importance of the ASTM B-987 Standard for Carbon Fiber Core Conductors

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  1. The Importance of the ASTM B-987 Standard for Carbon Fiber Core Conductors www.ctcglobal.com Sep 2021

  2. ACCC® News CTC Global is the privately held power grid solutions company whose flagship product, ACCC® Conductor is the leading high performance, high voltage power line solution used by utility companies around the world to expand access to and to debottleneck their grids. ACCC® Conductors have been selected for over 1,000 projects by more than 250 utilities in 60 countries and are credited with eliminating and avoiding over 15 million metric tons of line-loss related CO2 emissions. www.ctcglobal.com

  3. American Society for Testing and Materials (ASTM) www.ctcglobal.com While patents offer some protection for Companies that painstakingly develop, test and commercialize new products and technologies, its not uncommon for ‘good products’ to be replicated by competitors. To protect Consumers, standards and test protocols are frequently developed to help ensure that products and product replications perform as intended and are produced consistently.  ASTM International (formerly known as American Society for Testing and Materials), is an international standards organization that develops and publishes technical standards for a wide range of materials, products, systems, and services for virtually every industry. Currently 12,575 ASTM Standards exist to protect Consumers and ensure product quality and consistancy.

  4. ASTM Standard B-987 ASTM Standard B-987 “Standard Specification for Carbon Fiber Thermoset Polymer Matrix Composite Core (CFC) for use in Overhead Electrical Conductors” offers a plethora of performance and test protocols that are critical to the performance, integrity and longevity of carbon fiber cores used in overhead electrical conductors that must perform reliably in extremely harsh environmental conditions for decades. www.ctcglobal.com

  5. ASTM Standard B-987 While corrosion of aluminum and steel used in legacy ACSR conductors will occur in wet conditions, which can be exacerbated by salt air, industrial or agricultural pollutants, galvanic corrosion can also occur. Galvanic corrosion is an electrochemical process in which one metal corrodes preferentially (and at an accelerated rate) when in contact with a different type of metal in the presence of an electrolyte, such as water. While steel core wires are often coated with zinc to reduce the rate of galvanic corrosion between the conductor’s core and aluminum strands, the risk of galvanic corrosion with carbon fiber cores is far greater due to their substantial difference in electrode potential as shown in the chart below. www.ctcglobal.com

  6. ASTM Standard B-987 While newcomers to the world of carbon fiber composites may not fully understand this phenomenon, lessons have been learned the hard way in the aerospace and other industries. If you are considering carbon fiber core conductors, please be advised that adherence to the established ASTM B-987 Standard - and especially its requirement for a robust non-conductive galvanic barrier - can mean the difference between a conductor that lasts many decades in use or one that fails and falls prematurely. If you have any questions, please contact us at info@ctcglobal.com www.ctcglobal.com

  7. 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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