Tension clamps, also known as strain clamps or dead-end clamps, are high-strength metal fixtures engineered to secure electrical conductors and lightning protection wires. These critical components are designed to withstand significant longitudinal tensile forces, ensuring that wires are safely anchored to tension strings or towers, thereby maintaining the structural integrity of power and communication networks.
Depending on the installation requirements, these clamps are categorized into two primary types: independent tension clamps (bolt or wedge type) which provide high-strength clamping without acting as a conductor, and dead-end clamps which simultaneously bear the full tension and serve as a conductive path. From traditional power lines to advanced ADSS optical cables, our tension fittings ensure maximum stability and vibration reduction.
| Clamp Category | Bolt Type / Wedge Type / Dead-End | Application Scope | Power Lines & Communication Cables |
|---|---|---|---|
| Min. Clamping Force | ≥ 90% of rated tensile force | Optical Cable Grip | ≥ 95% of rated tensile strength |
| Installation Site | Corner, Splice, and Terminal Points | ADSS Span Limit | ≤ 100 Meters |
| Primary Materials | High-Grade Aluminum / Steel / Clad Alloys | Functionality | Anchoring & Tension Support |
| Support Type | Non-linear Towers / Cable Towers | Special Feature | Spiral Aluminum Clad Steel Wire |
Engineered to withstand extreme pulling forces, ensuring 90%-95% efficiency relative to the conductor's rated strength.
Designed for convenient and fast deployment, significantly reducing on-site construction time and labor costs.
Utilizes spiral aluminum clad steel wire to eliminate concentrated stress and reduce wind-induced vibration.
Ideal for corners, splices, and terminal connections across various power and communication infrastructures.
Available as purely mechanical anchors or as conductive dead-end clamps based on network topology.
Specialized fittings for ADSS fiber optic cables, ensuring signal integrity while maintaining physical tension.
Real-time tracking of clamp specifications and stock levels for large-scale projects.
Strict testing protocols for rated tensile force and clamping efficiency.
Systematic oversight of tensioning processes to ensure safety standards.
Scheduled inspection reminders to prevent conductor fatigue or clamp slippage.
Streamlined delivery of specialized fittings to remote tower locations.
Ensuring all hardware meets international electrical safety and tensioning standards.
| Metric | Standard Fittings | Professional Tension Clamps | Economic Impact |
|---|---|---|---|
| Installation Speed | Slow/Manual | Fast/Optimized | Reduced Labor Cost |
| Cable Lifespan | Average | Extended (Vibration Reduction) | Lower Maintenance |
| Security Level | Variable | Consistent (≥90% Strength) | Lower Risk of Outage |
| Construction Cost | High (due to time) | Low (efficient installation) | Immediate Savings |
| Long-term ROI | Low | High | Sustainable Infrastructure |
A tension clamp generally secures the wire to withstand tensile force; however, a dead-end clamp specifically serves as both a tension anchor and a conductor, meaning it cannot be disassembled once installed.
Our tension clamps are engineered so that the clamping force is no less than 90% of the rated tensile force of the installed conductor or lightning protection wire.
Yes, we provide specialized tension fittings for ADSS optical cables with grip strengths reaching at least 95% of the cable's rated tensile strength, suitable for spans up to 100 meters.
We use spiral aluminum clad steel wire, which provides extremely strong tensile strength and prevents concentrated stress, effectively reducing vibration for optical cables.
They are essential for corner connections, splice points, terminal connections, and for fixing wires to the tension insulator strings of non-linear or cable towers.
Yes, Type 1 tension clamps (including bolt and wedge types) are designed so they can be removed and used separately after the wire installation is complete.