TransPowr® AAC/T-2® Bare Overhead Conductor (US)
AAC/T-2® is a twisted pair of stranded aluminum conductors that are twisted around each other at nine-foot intervals. These conductors are manufactured in accordance with the latest standards set forth in ASTM B230, B231, and B911, as applicable. The sizes and strand configurations provided in the following pages are the most commonly used for overhead lines, but additional sizes and configurations are available.
Features and Benefits
The AAC/T-2 conductor design effectively resists wind-induced movement in two key ways. First, the varying diameter of the conductor prevents the buildup of resonant vibrations along the line. Second, its low torsional stiffness reduces the wind forces that cause motion, keeping them at minimal levels. These mechanical properties eliminate galloping, reduce aeolian vibrations, and control subconductor oscillation.
The AAC/T-2 can reduce structural costs by allowing higher conductor tensions, resulting in less sag and longer spans. Additionally, right-of-way costs may be reduced by using more compact line designs. Electrically, the AAC/T-2 operates at lower temperatures and has a lower AC resistance compared to a single conventional conductor with the same aluminum cross-sectional area. Moreover, AAC/T-2 can be installed using many of the same methods and equipment as standard round conductors.
Applications
AAC/T-2 conductors are used for overhead distribution and transmission lines, which may suffer damage from wind-induced motion.
Options
- E3X® surface coating (/E3X)
- High-conductivity aluminum (/HC) (62.2% IACS)