TransPowr® ACCC®/TW Bare Overhead Conductor (Canada)

TransPowr® ACCC®/TW Bare Overhead Conductor (Canada)
Product description

TransPowr® ACCC®/TW is a specialized aluminum conductor featuring a composite core and a trapezoidal, concentric-lay-stranded design. The unique trapezoidal shape of the aluminum strands allows for a more efficient arrangement of the wires. ACCC/TW conductors are designed to maintain the same overall diameter as traditional round wire ACSR (Aluminum Conductor Steel Reinforced). 

The compact design of the trapezoidal conductors, combined with a smaller composite core, gives the TW conductor approximately 28% more aluminum cross-sectional area compared to ACSR. This innovative design adheres to the standards outlined in ASTM B857 (Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Supported, ACSS/TW). Furthermore, the annealed aluminum strand wires comply with ASTM B609. The core, which serves as a strength member, consists of a proprietary high-strength carbon and glass fiber composite, in accordance with ASTM B987, and is surrounded by two, three, or four layers of annealed 1350 aluminum wire.

 

Features and Benefits 

  • Doubles the current-carrying capacity compared to conventional ACSR. This can allow a utility to re-conductor existing pathways without structural modifications.
  • It can be operated to 180°C, whereas the existing ACSR has a conventional 75°C limit.
  • The composite core has a very low thermal expansion coefficient, which virtually eliminates high-temperature sag problems. The conductor is not affected by long-term creep of the aluminum.
  • The composite core controls the high-temperature sag limits.
  • The overall mass (weight) of the ACCC/TW conductor, even with the increased aluminum content, can be lighter than the original ACSR conductor it is replacing.
  • Uses conventional installation methods and tools familiar to transmission line construction crews.
  • It may reduce construction costs by allowing the use of fewer support structures. The conductor’s higher strength allows longer spans.
  • The composite core resists environmental degradation. It will not rust, corrode or cause electrolysis with aluminum conductors or other components.
  • With its higher aluminum content, it can offer higher operating efficiency, helping reduce power generation and transmission costs.

 

Applications

TransPowr ACCC/TW conductors are designed for overhead power distribution and transmission lines. They are particularly beneficial for reconductoring applications that require minimal thermal sag without structural modifications.

 

Options

  • E3X® surface coating (/E3X)
  • Non-Specular surface finish (/NS)
  • ULS - Extra High Strength composite carbon fiber core enabling greater strength and lower sag due to ice for use in locations where heavy or extreme ice loading conditions exist (ULS ACCC).
Product datasheet