ACCC® AZR Conductor Designed to Mitigate Heavy Ice Loads

ACCC® AZR Conductor Designed to Mitigate Heavy
Ice Loads

www.ctcglobal.com
Oct 2021

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

How CTC Global and its ACCC Manufacturing Partners are
Shattering Heavy Ice Loads with ACCC® AZR Conductor

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.

www.ctcglobal.com

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

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

Contact Us

Website: www.ctcglobal.com
Phone: +1 949 428 8500
Fax: +1 949 428 8515
Email: [email protected]
Thank You