Bolt-type Tension Clamps Are Very Convenient For Construction On Non-terminal Towers
Non-terminal tower construction demands hardware that minimizes line downtime and installation complexity. While traditional compression systems require heavy machinery, using a bolt-type tension clamp allows field crews to achieve secure line termination rapidly, drastically lowering labor costs and equipment dependency on intermediate tension structures.
Key Advantages in Non-Terminal Applications
Intermediate and non-terminal positions benefit immensely from hardware that permits adjustments during conductor sagging. A bolted type strain clamp provides the precise mechanical grip needed while allowing crews to retighten or reposition components without damaging the conductor outer strands.
1. Rapid Installation with Standard Tools
Unlike compression fittings that require heavy hydraulic presses and specific die sets, a bolted dead end clamp can be fully secured using standard impact or torque wrenches. This significantly reduces the logistical burden for crews working at elevated heights.
2. Enhanced Maintenance and Reusability
Field maintenance becomes highly efficient because these components allow for straightforward visual inspections and manual adjustments.
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Zero Hydraulic Dependencies: Eliminates the risk of using mismatched compression dies.
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On-Site Adjustability: Allows crews to easily fine-tune tension during line sagging.
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Hardware Reusability: The assembly can be safely dismantled and reused during line upgrades.
Performance Specifications
Selecting the proper hardware depends on matching the mechanical rating with the specific conductor diameter. The table below outlines the typical operational parameters for standard configurations used on intermediate tension structures.
| Configuration Model | Conductor Diameter Range (mm) | Minimum Holding Strength (kN) | Tightening Torque (N·m) |
|---|---|---|---|
| BTC-01 | 8.0 - 15.0 | 40 | 45 |
| BTC-02 | 15.1 - 22.0 | 70 | 60 |
| BTC-03 | 22.1 - 32.0 | 110 | 85 |
Installation Procedures
To maximize structural integrity on non-terminal towers, installation teams must follow a strict tightening sequence. Applying the correct torque prevents conductor slippage under environmental loads while maintaining optimal electrical conductivity across the span.
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Preparation: Clean the conductor surface thoroughly and apply an approved joint compound.
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Positioning: Guide the conductor into the receiving groove of the dead end strain clamp.
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Torque Application: Tighten the U-bolts alternatingly in a diagonal sequence to ensure even pressure distribution until the specified torque rating is achieved.
