The Splice Shunt restores electrical conductivity and mechanical strength to automatic and compression splices that exhibit excessive heat or failure during thermal line inspections. Applied directly over existing damaged or failing splices, it addresses issues in overhead power distribution systems without requiring full connector replacement.
The device features a lightweight design for easy installation by hand or with hot sticks and accommodates all-aluminum, aluminum alloy, and Aluminum Conductor Steel Reinforced (ACSR) conductor types. Customizable sizing ensures adaptability across various electrical systems. Rods are manufactured from high-strength aluminum alloy with conductive grit on the inner surface to ensure reliable electrical contact with the cleaned conductor.
Thermal ratings reach 125°C for ACSR, All Aluminum Conductor (AAC), and All Aluminum Alloy Conductor (AAAC), and up to 250°C for Aluminum Conductor Steel Supported (ACSS) and Aluminum Conductor Composite Reinforced (ACCR) types. The design restores up to 100% of the conductor’s original electrical conductivity while providing mechanical reinforcement. Rods are sub-setted into groups for ease of application.
Installation involves cleaning the conductor, applying a conductive oxide inhibitor, and wrapping the shunt securely around the splice. This method allows installations on energized lines, minimizing downtime. Accredited testing to international standards validates repair capacity and performance, preventing future failures and extending the lifespan of electrical connections.
Splice Shunt: Premier Manufacturer for Grid Reliability
RaxPower, headquartered in Hebei Province, China, is a leading manufacturer with over 21 years of specialized engineering in pole line hardware, focusing on R&D, production, and sales. The power grid faces increasing power flows on aging circuits, leading to catastrophic overhead connector failures, such as the well-known Candlestick Park blackout and a $105M wrongful death lawsuit.
Driven by a commitment to public safety, system reliability, and lineman-friendly design, RaxPower creates innovative products that install easily on energized lines without power interruption. The Splice Shunt, an engineered electrical and mechanical shunt, restores up to 100% conductivity and mechanical strength to compression splices found excessively hot during thermal inspections.
Lightweight and installable by hand or hot sticks in minutes, it directly overlays damaged splices, restoring performance to all-aluminum, aluminum alloy, and ACSR conductors. As the industry’s only PERMANENT life extension solution, it prevents unplanned outages, meets FERC operating temperature requirements, and has delivered millions in customer savings with 30-50 year infrastructure life extensions.
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| Parameter | Value |
|---|---|
| Application | Restores electrical conductivity and mechanical strength to automatic and compression splices that are damaged, failing, or overheating in overhead power distribution systems. |
| Electrical Conductivity Restoration | Up to 100% of the conductor’s original electrical conductivity. |
| Mechanical Strength Restoration | Restores 100% of the aluminum strands’ strength and 10% of the steel strands’ strength. |
| Thermal Rating (Continuous) | 125°C for ACSR, AAC, and AAAC conductors; up to 250°C for ACSS and ACCR conductors. |
| Material | Rods made from high-strength aluminum alloy with conductive grit on the inner surface for reliable electrical contact. |
| Installation | By hand or with hot sticks; lightweight design for easy handling. |
| Weight | Lightweight. |
| Compatible Conductors | All-aluminum (AAC), aluminum alloy (AAAC), ACSR, ACSS, and ACCR. |
| Rod Configuration | Sub-setted into groups for ease of application. |
| Customization | Available in customizable sizes to meet specific requirements. |
Frequently Asked Questions (FAQS)
What is the primary function of the Splice Shunt?
The Splice Shunt restores complete electrical conductivity and a portion of the mechanical strength to automatic and compression splices that are excessively hot or failing during thermal line inspections. It is compatible with all-aluminum, aluminum alloy, and ACSR conductors.
Can the Splice Shunt be installed on energized lines?
Yes, it can be installed on energized lines using hot stick application, allowing for maintenance without service interruptions or de-energizing the line. The lightweight design enables easy hand or hot stick installation directly over damaged or failing splices.
What are the thermal operating limits of the Splice Shunt?
The Splice Shunt has a continuous thermal rating of 125°C for ACSR, AAC, AAAC and 250°C for ACSS, ACCR conductors.
Are there different models of the Splice Shunt for specific applications?
Yes, different models are available including SP-2734 for general splice shunt applications, SP-2577 for galvanized strand, and SP-3254-2 for distribution construction.
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