How to Improve the Efficiency, Capacity and Reliability of the Grid with ACCC Conductor  

CTC Global books its 350th ACCC Conductor order

Milestone project represents over 30,000 km of ACCC installed in 30 countries.
Initially deployed in 2005, the ACCC conductor was developed to increase the capacity of existing transmission and distribution lines that were constrained due to thermal sag.
While the ACCC conductor's patented carbon and glass fiber core offers approximately twice the strength of steel, with a coefficient of thermal expansion about 1/10th that of steel to mitigate thermal sag, its lighter weight core also allows the incorporation of approximately 28% more aluminum without a weight or diameter penalty.
The ACCC conductor's added aluminum content (and excellent conductivity)* not only serves to increase capacity, it also allows the ACCC conductor to run much cooler than other conductor types under equal load. The cooler operating temperatures translate into line loss reductions of 25 to 40% or more.
Reduced line losses can reduce fuel consumption, conserve resources, and/or reduce emissions. With perhaps even greater significance, reduced line losses also frees-up generation capacity that is otherwise wasted. Considering the high cost and challenges associated with developing new generation resources, the ACCC offers progressive utilities a very favorable means of not only improving the efficiency, capacity and reliability of the grid, it also opens up a window to delivering more power to more customers with reduced generation investment.

*ACCC conductor uses Type 1350-0 (fully annealed) aluminum that offers 63% IACS conductivity. For comparison AAAC conductor (all aluminum alloy) uses Type 6201-T81 that offers 52.5 IACS conductivity.
MSETCL Completes ACCC Installation in Nagpur

With the help of Sterlite Technologies Ltd. and CTC Global, Maharashtra State Electricity Transmission Co. Ltd. (MSETCL) successfully completed their second ACCC conductor installation in Nagpur, Maharashtra, India. The 132 kV Ambazari - Hingna - Mankapur project utilized over 30 km of 622.6 kcmil (315.5 mm^2) Lisbon ACCC conductor manufactured by Sterlite Technologies, Ltd.
Nagpur, often called "Orange City" is precisely at the geographical centre of India and home of the zero mile marker. According to ABP News, Nagpur is the best Indian city to live in based on a number of indices. It is a major trade center for oranges cultivated in the region and also a key Information Technology center.
Hingna is an industrial area where load shedding previously occurred and Mankapur is a growing residential area that also suffered from power outages. The installation of ACCC conductor on this line mitigates the problem even when adjacent lines become overloaded - as the ACCC conductor can handle contingency loads without exhibiting excessive conductor sag.
Due to high population density, it was not possible to build a new line so ACCC was selected as the most cost-effective alternative. The project was successfully completed under the supervision of Sterlite's Field Installation Team and TEEMS India Tower Lines, an in-country ACCC installation supervisor specialist, exclusively appointed by CTC Global.

This project represents Sterlite's 11th successful ACCC conductor installation in India and their 7th ACCC installation completed so far this year.
ACCC conductor in India

AFL offers new HiTemp ® hardware system for ACCC

AFL recently completed the development, testing and commercialization of their patented HiTemp hardware system for ACCC Conductor.

AFL's HiTemp accessories are designed and engineered to operate 25-30 percent cooler than the conductor, improving heat dissipation. These accessories are fabricated from a specially tempered aluminum that transfers elevated current and dissipates increased heat more efficiently. The compression high tension fittings use a unique patented technology designed to hold at least 95 percent of the rated conductor breaking strength without compromising the integrity of the composite conductor core. For more information CLICK HERE

See Press Release: CLICK HERE

ACSS vs ACCC Conductor
Why Over 150 Utilities in 30 Countries Have Selected ACCC
  • High Capacity
  • Low Sag
  • High Strength
  • Fatigue Resistant
  • Corrosion Resistant
  • Excellent Self Damping
  • Easy to Install
  • Great for Long Spans
  • Very Tough & Flexible
  • Extensively Lab & Field Tested
  • Excellent for N-1 Conditions
  • Reduced Line Losses & Emissions
  • Free's-up Generation Capacity that is Otherwise Lost


The ACCC Conductor's added aluminum content (without a weight or diameter penalty) allows it to run cooler under any load condition which translates into reduced line losses. Reduced line losses can save fuel, emissions and generation capacity.

The Bottom Line:

In 350 cases the ACCC conductor has provided more than 150 utilities the best economic solution for their specific project needs.  


CLICK HERE to view our interactive project map



Links to Recent Articles

Overview of ACCC Conductor Training, Installation and Operating Experience

With nearly 350 projects completed we have learned a lot. Our job is not only to help you learn the attributes of ACCC, its also to help keep your crews safe during installation. In an effort to share our knowledge base we have created a number of useful documents and training videos. To download a copy of "Overview of ACCC Conductor Training, Installation and Operating Experience"   CLICK HERE

Explore Our Video Library


Please take a look at our informative video library. You will find general overview material as well as testing and installation training videos. Please CLICK HERE

Free Engineering Manual

To help Transmission and Distribution planners, engineers, policy makers, grid operators, technicians and others take full advantage of the ACCC conductor's attributes, CTC Global has published a 250 page Engineering Manual. It offers a very comprehensive set of design guidelines, case studies, figures and facts about conductors and composite materials, and includes links to additional resources and FAQ's, To download an electronic version please CLICK HERE 
If you would like to receive a hard copy please CLICK HERE

Free Engineering Software

CTC Global created CCP to help system planners and engineers compare the ampacity, line losses, thermal and ice load sag, and economic aspects of nearly any conductor type and size, so the numerous advantages of the ACCC conductor can be fully realized. The user simply selects the conductor types and sizes from drop down menus and enters the appropriate values & assumptions highlighted in the yellow boxes. The program is fully functional and uses standard industry formulas (such as IEEE 738-2006). Outputs are readily comparable to Sag10®, PLS CADD™ and other similar programs CLICK HERE


CTC Global proudly works with top-tier manufacturing partners worldwide


ACCC Conductor is an internationally patented and trademark registered product of CTC Global Corporation.  The ACCC conductor is manufactured in association with 20 qualified and licensed international stranding partners. If you are interested in the ACCC conductor, please contact CTC Global to make sure your supplier is authorized to produce and deliver ACCC conductor in your area.  Thank You. 


CTC Global Corporation 2026 McGaw Avenue, Irvine, California USA 92614

Telephone: +1 949 428 8500 


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