• High-Temperature Connector Line Offers New Option for Reinforcing Overhead Power Lines

    These connectors are intended to improve both the mechanical and electrical performance of transmission and distribution systems.
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    July 21, 2025
    2 min read
    Classic Connectors
    687ea10a71eef8bbfb5ef3e7 Screenshot 20250721 151945

    A newly released line of high-temperature connectors is providing an alternative to traditional overhead clamp systems.

    Classic Connectors USA has introduced an updated range of its ClampStar connector products, designed specifically to replace older Parallel Groove (PG) clamps and tap connectors. The new models—including the CST (ClampStar Tee), CSP (ClampStar Parallel), and temporary-use variants CSTT and CSPT—are built to operate at sustained temperatures above 250°C and have been tested to 390°C, offering a durable option for conductor reinforcement and repair.

    These connectors are intended to improve both the mechanical and electrical performance of transmission and distribution systems. Unlike conventional PG clamps, which may degrade under high thermal and mechanical stress, the ClampStar products meet ANSI C119.4 Class AA standards and incorporate features aimed at long-term system resilience. That includes torque-limiting fasteners for consistent installation, and a proprietary inhibitor compound to prevent corrosion at connection points.

    The permanent-use CST and CSP models are suited for reinforcing tap and tee connections on energized lines, while the CSTT and CSPT provide temporary support for maintenance or emergency response—whether crews are working with hot sticks or bare-hand methods. For high-voltage applications up to 500 kV, optional corona shields are available to reduce the risk of electrical discharge.

    By shifting from aging clamp hardware to these new high-temperature connectors, utilities can reinforce critical points on their network without requiring outages or full conductor replacement.