
High Voltage Transmission Line Tension Clamp
High Voltage Transmission Line Tension Clamps are precision-engineered mechanical fittings used to secure and terminate overhead conductors at dead-end and tension points. These clamps transfer conductor mechanical tension to supporting structures while maintaining reliable retention. Selection depends on conductor type, outside diameter, construction, required mechanical load, connection configuration, material, and project specifications.
- Product Introduction
High Voltage Transmission Line Tension Clamps are precision-engineered mechanical fittings used to secure and terminate overhead conductors at dead-end and tension points. These clamps transfer conductor mechanical tension to supporting structures while maintaining reliable retention. Selection depends on conductor type, outside diameter, construction, required mechanical load, connection configuration, material, and project specifications.
Product Classification and Applications
• Category: Overhead Transmission Line Fittings
• Product Type: Tension Clamp / Dead-End Conductor Fitting
• Applications: High-Voltage Overhead Transmission Lines
• Installation Sites: Dead-End Towers, Tension Towers, Angle Towers, and Conductor Termination Points
Configuration Options
• Compression-type tension clamps
• Bolted tension clamps
• Custom-engineered conductor tension fittings
• Tension clamp assemblies complete with specified bolts, nuts, and washers
Standard Conductor Reference Chart
|
Conductor Code / Name |
Conductor Area (AL/St) |
Overall Diameter |
Rated Tensile Strength (RTS) |
Compatible Clamp Type |
|
ACSR Hawk |
240 / 40 mm2 |
21.80 mm |
88.1 kN |
Compression / Bolted |
|
ACSR Drake |
400 / 50 mm2 |
28.14 mm |
140.0 kN |
Compression |
|
ACSR Bear |
300 / 30 mm2 |
23.45 mm |
110.7 kN |
Compression / Bolted |
|
Custom AAAC / AACSR |
Project Specific |
Specified Range |
Tailored to Line Load |
Custom Forged / Cast |
Technical Specifications
|
Parameter |
Technical Requirement |
|
Compatible Conductor |
ACSR, AAAC, AACSR, or project-specified conductor types |
|
Conductor Diameter |
Actual outside diameter or defined diameter range |
|
Mechanical Rating |
Specified rated ultimate tensile strength or mechanical load |
|
Clamp Design |
Compression type, bolted type, or custom connection geometry |
|
Material Options |
High-strength aluminum alloy, forged aluminum, cast aluminum, or steel |
|
Hardware Specifications |
High-tensile steel bolts, nuts, and washers as required |
|
Surface Protection |
Hot-dip galvanizing for steel parts; protective finishing for aluminum |
|
Governing Standards |
IEC 61284, ASTM, or utility project specifications |
|
Quality Documentation |
Material Test Certificates (MTC), Dimensional Reports, Test Reports, Certificate of Conformity (COC) |
Materials & Manufacturing Capabilities
Engineering & Review: 2D/3D drawing verification to confirm conductor compatibility, clearances, and tolerances.
Forming: Cast aluminum for complex shapes; forged aluminum or structural steel for high dynamic mechanical loads.
Precision Machining: CNC milling, drilling, and threading for internal grooves, contact surfaces, and mating interfaces.
Surface Treatment: Hot-dip galvanizing for long-term outdoor corrosion protection on steel parts.
Quality Verification: Full batch inspection covering chemical composition, dimensional accuracy, and mechanical performance.
Mechanical Performance and Quality Control
Retention Integrity: Engineered groove geometry prevents slippage under high dynamic loading.
Corrosion Resistance: Galvanized and treated surfaces ensure long service life in harsh environments.
Testing Standards: Mechanical testing follows IEC 61284 guidelines for overhead line fittings.
Traceability: Heat numbers, production logs, and inspection reports provide complete product history.
Technical Documentation Package
To support smooth EPC delivery and utility approval, each shipment can include:
• Approved 2D/3D Assembly Drawings
• Material Test Certificates (MTC)
• Dimensional Inspection Reports
• Mechanical Load & Tensile Test Records
• Certificate of Conformity (COC)
FAQ
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