ACCC HiTemp Compression Two Die System

Why Use ACCC® Conductors?

Demand for power continues to increase at an alarming rate, forcing utilities to put greater and greater electrical loads on their existing lines. However, most existing transmission circuits have been designed for operation at or below 93˚C. Aluminum Conductor Steel Reinforced (ACSR), the most commonly used conductor, cannot handle the higher temperatures resulting from increased current loads. With the increasing de-regulation pressures, rising construction costs and right-of-way scarcity, another option is needed.

In response to this need, CTC Global (CTC) developed the Aluminum Conductor Composite Core (ACCC), a high temperature composite core conductor. ACCC is capable of carrying up to twice the current of a conventional ACSR conductor of the same diameter and similar weight. Instead of building new transmission lines, ACCC conductors can replace existing ACSR conductors, thus allowing utilities to increase energy output with an economical option.However, with the increased power from ACCC conductors, standard compression accessories could not handle the elevated temperatures and work loads. In response, AFL developed the HiTemp product line, consisting of compression and motion control accessories, pulling grips, and high temperature compounds to give customers a system solution when installing this new technology.

What is ACCC?

ACCC is a high-capacity, low-sag conductor that utilizes a hybrid carbon and glass fiber core that offers greater strength, a lower coefficient of thermal expansion, lighter weight and excellent corrosion resistance. The lighter weight core allows the incorporation of up to 28% more aluminum without a weight or diameter penalty which serves to reduce line losses by 25-40% or more. The ACCC conductor’s greater strength and reduced thermal sag enable greater spans between fewer and/or shorter structures to reduce upfront capital costs.
 


      

 

ACCC Test Data

AFL tests all our HiTemp Accessories for ACCC Conductors to industry standards and specifications. Test data for ACCC conductors includes:

ACCC Products


AFL’s new Dissipator high-efficiency stockbridge damper 1700AA series provides a significant performance improvement over our traditional damper due to its unique offset bell-shaped weight configuration. The new offset weight design doubles the number of resonant frequencies, thereby providing a more consistent efficiency performance over the aeolian frequency span. This selection is for ACCC® Conductor Compatibility.
The HiTemp 15 degree compression terminal is specially designed and engineered to provide improved heat dissipation, AFL's HiTemp Compression Accessories are designed to operate 25-30% cooler than the conductor, extending its life. The HiTemp product line is rated for operation up to 250°C.
The HiTemp Bolted Tee Tap is specially designed and engineered to provide improved heat dissipation, AFL's HiTemp Compression Accessories are designed to operate 25-30% cooler than the conductor, extending its life. The HiTemp product line is rated for operation up to 250°C.
The body of the HiTemp compression dead end is specially designed and engineered to provide improved heat dissipation, AFL's HiTemp Compression Accessories are designed to operate 25-30% cooler than the conductor, extending its life. The HiTemp product line is rated for operation up to 250°C.
The HiTemp Compression Joint is specially designed and engineered to provide improved heat dissipation, AFL's HiTemp Compression Accessories are designed to operate 25-30% cooler than the conductor, extending its life. The HiTemp product line is rated for operation up to 250°C.
The HiTemp compression Jumper is specially designed and engineered to provide improved heat dissipation, AFL's HiTemp Compression Accessories are designed to operate 25-30% cooler than the conductor, extending its life. The HiTemp product line is rated for operation up to 250°C.
With over 80 years of experience designing and manufacturing accessory products for electric power utilities, AFL is a recognized leader, providing superior product solutions and improving reliability of critical infrastructure components used for the transmission and distribution of electricity.
With over 80 years of experience designing and manufacturing accessory products for electric power utilities, AFL is a recognized leader, providing superior product solutions and improving reliability of critical infrastructure components used for the transmission and distribution of electricity.