THERMOLIGN® Dead-End

PLP’s THERMOLIGN® Dead-End Products are specialized termination solutions designed for high-temperature, low-sag (HTLS) conductors in electrical transmission systems. These products provide mechanical and electrical integrity while ensuring that conductors maintain their strength and efficiency under extreme temperature conditions.

Read more about dead-ends in electrical transmission systems here:

Dead-end basics

Uses of THERMOLIGN® Dead-End Products

Secure Termination of High-Temperature Conductors
- Used to anchor HTLS conductors to transmission structures while maintaining their full tension strength
- Specifically designed for applications on ACSS, ACSS/TW, and ACCR conductors
- Allows for continuous operation at temperatures of up to 250°C, ensuring reliable performance under heavy electrical loads
Minimizing Conductor Sag
- HTLS conductors operate at high temperatures, which can cause excessive sag in traditional systems. THERMOLIGN® dead-ends help control and reduce sag, maintaining proper clearances and system stability.
Maintaining Electrical Continuity
- Designed to provide optimal conductivity, ensuring that electrical transmission is efficient and resistant to power losses at termination points.
Withstanding Harsh Environmental Conditions
- Constructed with high-strength materials that resist thermal expansion, corrosion, wind loads, and ice accumulation, ensuring long-term reliability.
Eliminating Compression Requirements
- Unlike traditional compression dead-ends, THERMOLIGN® dead-ends feature a multi-layer design that allows for easy installation without the need for large compression tools.

Key Features of THERMOLIGN® Dead-End Products

High-Temperature Resistance – Operates up to 250°C for modern high-capacity transmission lines.
Multi-Layer Construction – Maximizes mechanical strength and thermal dissipation.
Non-Compression Design – Reduces installation time and eliminates the need for hydraulic compression tools.
Enhanced Corrosion Resistance – Materials withstand harsh environments for long service life.
Optimized for Modern HTLS Conductors – Works with ACSS, ACSS/TW, ACCR, and other high-performance conductors.

Applications of THERMOLIGN® Dead-End Products

Transmission Line Termination
- Used at the end of transmission lines to securely anchor conductors while maintaining electrical and mechanical integrity.
Renewable Energy Infrastructure
- Supports the expansion of wind and solar power transmission by providing reliable conductor termination in high-capacity, long-span applications.
Upgrading Existing Power Lines
- Essential for modernizing power grids by replacing traditional aluminum-based conductors with HTLS conductors to improve efficiency and capacity.
Extreme Climate Installations
- Ideal for use in areas with high winds, extreme temperatures, and heavy ice-loading, ensuring durability and performance under tough conditions.