ACCC® AZR Conductor Designed to Mitigate Heavy Ice Loads

1. ACCC® AZR Conductor Designed to Mitigate Heavy Ice Loads www.ctcglobal.com Oct 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. How CTC Global and its ACCC Manufacturing Partners are Shattering Heavy Ice Loads with ACCC® AZR Conductor www.ctcglobal.com Unlike steel which will plastically (and permanently) deform and yield under extreme ice load conditions, the ACCC® composite core is fully elastic. The benefit is obvious, but the drawback is that under extreme ice it can sag more than a conventional steel core conductor.

4. To combat this issue CTC Global offers many strategies: In several designs we have simply increased the size of the standard 310 ksi ACCC® Core (for comparison, high strength steel is rated at 285 ksi), which can do the trick. We have also designed and fully tested a higher strength ACCC® Core rated at 375 ksi. We call this product ACCC® ULS, which has been installed at approximately three dozen projects, worldwide. The ACCC® ULS version also has a higher modulus which means it stretches less under extreme ice load conditions. In some cases, smaller diameter ACCC® designs can also be effective at minimizing sag under heavy ice conditions. Most recently CTC Global has introduced ACCC® AZR conductor which consists of either a standard 310 ksi core or a 375 ksi core, either of which are then stranded with one or more layers of AT3 Aluminum Zirconium alloy strands. (see ASTM Standard B-941 or IEC Standard 62004). www.ctcglobal.com

5. Expanding the Capabilities of the ACCC® Conductor Using Aluminum Zirconium Alloy to Combat Extreme Ice Loads ACCC® AZR Conductor uses either the standard 310 ksi core or the higher strength 375 ksi core that is then wrapped with one or more layers of a high strength, thermal resistant aluminum-zirconium alloy.  While conventional ACCC® Conductors typically use fully annealed aluminum to maximize conductivity, the ACCC® AZR Conductor offers nearly the same efficiency, but far greater overall strength. The added strength and increased tensile modulus mitigates conductor sag under heavy wind or ice loads, or very long spans.  www.ctcglobal.com

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