Bundled Conductors

What are Bundled Conductors?

Bundled conductors are a unique and innovative approach utilized in electrical power transmission lines to increase their efficiency and reliability. Essentially, bundled conductors consist of multiple cables, typically of the same size and material, that are connected together and run parallel to one another, separated by spacers. This configuration is paramount in reducing the energy losses caused by the corona effect—an electrical discharge that occurs with high voltages—and improving the transmission line's current-carrying capacity. A notable application within this technology is the implementation of anti-galloping devices, designed to prevent the dangerous oscillatory movement of power lines caused by wind or ice. AR Products is at the vanguard of this field, producing state-of-the-art anti-galloping devices which not only secure the conductors but also ensure consistent and safe electrical service during adverse weather conditions. Their precision-engineered solutions are a testament to the role that advanced hardware plays in the performance and durability of bundled conductors in contemporary power transmission infrastructure.

Properties of Bundled Conductors

There are many benefits and properties of bundled conductors for galloping mitigation, including: 

  • Reducing overall power loss - usually incurred through what's referred to as the skin effect—an electrical phenomenon where alternating current flows predominantly near the surface of the conductor, causing higher resistance and thus energy loss. By dividing the current among several parallel strands, this effect is minimized, leading to more efficient transmission of electricity over long distances.
  • Dissipating heat - Bundled conductors enhance the transmission lines capacity, which in turn improved its ability to dissipate heat.
  • Reduced mutual coupling & resistive losses - Bundled conductors allow for reduced mutual coupling and resistive losses, which contribute to a reduced voltage drop and improved system stability.

Cut down corona discharge - The air gaps between bundled strands cut down on corona discharge, a process that can lead to significant power loss, interference with communication systems, and even cause damage if not properly managed

Transmission line dampers and spacers for bundled conductors

AR products have been protecting overhead transmission lines in the U.S. and Canada from high amplitude galloping for more than 50 years. A variety of models are available. Made in the USA, AR Products offers solutions intent on asset protection.

MOD2 Spacer Damper

MOD2 Spacer Damper for Bundled Conductors

DOUBLE, TRIPLE AND QUAD BUNDLES
HORIZONTAL AND VERTICAL BUNDLES
RIVER CROSSINGS AND VERY LONG SPANS

A gallop control solution for twin, triple or quad bundles, the MOD2 Spacer Damper is effective at controlling galloping and vibration of medium and long spans. Acting as both a torsion and impact damper, the clamps are designed to swivel through large angles about the ring, a feature that allows the damper to attach to both vertical and horizontal bundles. This unique design mitigates sub-conductor oscillation as well as rolling of the bundle. Method of application interrupts single and double loop galloping amplitude.

MOD2 Spacer Damper Tech Sheet

MOD2 Spacer Damper - How it Works

Image of power line spacers
AR Lightweight Spacer Damper

AR Lightweight Spacer Damper for Bundled Conductors

The Ultimate Solution for Twin-Bundled Transmission Lines

Looking for advanced spacers in transmission lines or power line spacers? The AR Lightweight Spacer Damper is engineered to provide a superior, lightweight solution for twin-bundled conductors.

Key Benefits:

  • Effective Galloping Control: Articulating clamps allow for significant rotation and twisting of the conductor, enabling precise galloping control while maintaining optimal bundle separation.
  • Enhanced Conductor Stability: The clamp, installed at a 60-degree angle, provides a full 120-degree range of rotation, ensuring the conductor remains stable under varying conditions.
  • Corona-Free Design: With nuts fully enclosed within the bundle, the design eliminates the risk of corona discharge, ensuring reliable performance.

Unlike rigid spacers that merely separate the bundle, the AR Lightweight Spacer Damper combines superior galloping control with the flexibility to twist and rotate, accommodating the dynamic needs of modern power lines. Its innovative design maximizes rotation angles, offering unmatched control and protection for your transmission lines.

Upgrade your transmission infrastructure with AR Products' trusted solutions, designed to enhance reliability and performance.

Lightweight Spacer Damper Tech Sheet

Video: Watch the Lightweight Spacer Damper in action on bundled lines.

Image of a lightweight power line spacer

Image of a lightweight power line spacer