ACCC® Conductor

The CTC Global ACCC conductor utilizes a hybrid carbon and glass fiber core embedded in a high-performance thermoset epoxy matrix. The central carbon fiber core consists of tens of thousands of high-strength, high-modulus unidirectional carbon fibers that are surrounded by a protective layer of glass fibers. The outer glass fibers improve toughness and flexibility while also providing a galvanic barrier to prevent corrosion with the conductive aluminum strands.

The ACCC Conductor hybrid core is not only twice as strong as steel, it is also 70% lighter.

The lighter weight allows the CTC Global ACCC conductor – of any size – to utilize ~28% more aluminum without a weight or diameter penalty. The compact trapezoidal strands and smooth surface composite core work in unison to dissipate wind-induced vibration. While the aluminum strands are fully annealed, offering the highest degree of conductivity for any aluminum available today, the composite core offers a coefficient of thermal expansion about ten times less than steel.

The low coefficient of thermal expansion mitigates conductor sag under heavy electrical load conditions. While the composite core is fully elastic and will not plastically deform or yield like conventional conductor steel core strands, the overall modulus of the CTC Global ACCC conductor core is lower than that of steel. The lower modulus allows the ACCC conductor to stretch degree during extreme ice and wind loading events. However, when the event subsides, the composite core fully returns to its pre-stressed condition allowing the aluminum strands to subsequently relax. This type of event further improves the ACCC conductor’s self-damping characteristics and reduces the conductor’s thermal knee-point to further reduce conductor sag under heavy electrical load conditions.

In some cases pre-tensioning can be performed during installation to achieve these added benefits. When heavy ice and wind load conditions are anticipated, CTC Global and its worldwide stranding partners also offer a higher-modulus version of the composite core known as ULS. ACCC ULS conductors are also frequently used on long spans. For more information please contact support@ctcglobal.com. You can also download an electronic copy of the 250 page “Engineering Transmission Lines with High-Capacity, Low-Sag ACCC Conductor”

PLN Completes Quad-Bundled 500 kV ACCC® Conductor Installation in Indonesia

The first circuit of the Balaraja - Lengkong - Gandul line in West Jakarta was successfully completed and energized late last month. We...

Power Grid Company of Bangladesh (PGCB) Completes 14th ACCC Conductor Installation in Bangladesh

Earlier this month, PGCB completed the 43 route kilometer 132 kV Kushtia to Jhenaidah double circuit transmission line upgrade using 309.8...

Pakistan Cables Completes 2nd ACCC Conductor Installation in Pakistan

Based on the initiative of Pakistan Cables Ltd, Multan Electric Power Company (MEPCO) completed their ACCC Conductor installation in...

ETESA Begins 84.5 km Double Circuit ACCC Conductor Installation in Panama

Supported by the EPC firm Elecnor, the Panamanian Utility Empresa de Transmisión Eléctrica S.A. (ETESA) have just commenced construction...

PLN Starts Second 500 kV ACCC Conductor Upgrade

Following the success of the first 500 kV Suralaya -Balaraja ACCC conductor installation, PLN has started their second 500kV ACCC...
ACCC Conductor
Translate »
Loading...
Please wait... generating PDF