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HiTemp® Compression Accessories

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. ACSR, the most commonly used conductor, cannot handle the higher temperatures resulting from increased current loads. Additional transmission lines are not a cost effective alternative. With the increasing de-regulation pressures, rising construction costs, and right of way scarcity, another option is needed. In response to this need, ACSS and ACSS/TW conductors were developed. These conductors allow utilities to increase the amount of current up to 40%. Instead of building new transmission lines, new ACSS and ACSS/TW conductors can replace existing ACSR conductor, thus allowing utilities to increase energy output.

However, with the increased power from ACSS and ACSS/TW conductors, standard compression accessories could not handle the elevated temperatures and workloads. In response, ACA developed the HiTemp Product Line, consisting of compression and motion control accessories, pulling grips, and high temperature compounds.

HiTemp Catalog

Quick Reference ACSS

Quick Reference ACSS TW

HiTemp Installation Instructions

HiTemp Reference Information

 


The dead end assembly is specifically designed for ACSS conductors. The body of the HiTemp dead end is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The dead end assembly is specifically designed for ACSS/TW conductors. The body of the HiTemp dead end is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The 33000HT Series Compression Joint Assembly is specifically designed for ACSS conductors. The HiTemp Compression Joint is fabricated from a specially tempered aluminum that will will transfer elevated current and dissipate increased heat more efficiently.
The 42000HT Series Compression Joint Assembly is specifically designed for ACSS/TW conductors. The HiTemp Compression Joint is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The 5000HT Series Jumper Connector is specifically designed for ACSS conductors. The HiTemp Jumper Connector is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The 5000HT Series Jumper Connector is specifically designed for ACSS/TW conductors. The HiTemp Jumper Connector is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The 5200HT Series Repair Sleeve is specifically designed for ACSS and ACSS/TW Conductor. The repair sleeves incorporate an improved design of interlocking extrusion, providing a permanent grip on the conductor when compressed. The repair sleeve will restore the cable to 95% of its rated strength with up to one-third of the aluminum strands damaged.
The 5200HT Series Repair Sleeve is specifically designed for ACSS/TW Conductor. The repair sleeves incorporate an improved design of interlocking extrusion, providing a permanent grip on the conductor when compressed. The repair sleeve will restore the cable to 95% of its rated strength with up to one-third of the aluminum strands damaged.
The 5500HT Series Tee Connector is a permanent drop specifically designed for ACSS conductors. It is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The 5500HT Series Tee Connector is a permanent drop specifically designed for ACSS/TW conductors. It is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The 5500HT Series Tee Tap is a permanent or temporary drop specifically designed for ACSS conductors. It is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The 5500HT Series Tee Tap is a permanent or temporary drop specifically designed for ACSS/TW conductors. It is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The Terminal Connector is specifically designed for ACSS conductors. It is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
The Terminal Connector is specifically designed for ACSS/TW conductors. It is fabricated from a specially tempered aluminum that will transfer elevated current and dissipate increased heat more efficiently.
AFL's HiTemp Spacer Damper combines the function of a spacer in maintaining conductor separation and the function of a damper in controlling aeolian vibration and oscillation. The viscoelastic bushings firmly grip the ACSS or ACSS/TW conductor while eliminating possible fatigue breaks of the fully annealed aluminum strands. The product is rated for operation up to 250°C. AFL has developed spacer damper designs to meet various bundle configurations and installation requirements.
High-temperature spacers are necessary on horizontal bundle construction to prevent damage from wake-induced oscillation, ice unloading and short circuit clashing. AFL’s HiTemp Speed-Grip Spacer employs elastomer bushed clamps to firmly grip the conductor while eliminating possible fatigue breaks of the fully annealed aluminum strand. It is specially designed to allow rapid installation without special tools.
AFL's Stockbridge Damper has two natural frequency modes. These modes are commonly known as ‘flying’ and ‘wiggling’. AFL uses a specially designed 19 strand messenger wire allowing the damper to dissipate vibration, or ‘wake up’, at lower energy inputs. These two modes combined with the 19 strand messenger wire give AFL’s Stockbridge Damper the widest range of vibration coverage in the industry. Damper assemblies with catalog weights of 1706 and larger can be used at 345 kV and above.