Plastic Wedge-shaped Tension Clamps With Wedge Cores Are Mainly Used For Insulated Conductors.
Overhead power distribution relies on robust hardware to maintain line integrity. A plastic wedge-type tension clamp provides the necessary mechanical grip for insulated conductors without damaging the cable jacket. Selecting the right components ensures system longevity and prevents costly network downtime.
Technical Selection and Applications of Dead End Clamps
Choosing correct termination hardware depends on the specific cable type, structural load, and environmental factors. Different designs serve distinct purposes in modern aerial plant installations.
Dead End Tension Clamp for Power Lines
A heavy-duty dead end tension clamp secures low-voltage insulated cables on main distribution lines. The plastic wedge design distributes gripping force evenly, preventing insulation creep under high mechanical tension.
Fixed Dead End Clamp for Low Voltage Networks
For standard service drops, a fixed dead end clamp offers a rigid connection point. This design minimizes movement at support structures, ensuring stable electrical performance over time.
Fiber Optic Dead End Clamp for Telecommunications
Modern infrastructure often combines power and data. A specialized fiber optic dead end clamp protects fragile glass cores from crushing forces while maintaining necessary architectural tension.
Dead End Loop Clamp for Sag Regulation
When managing conductor slack near transformers, a dead end loop clamp allows precise sag adjustments. This flexibility prevents excessive mechanical stress during extreme weather events.
Technical Specifications and Selection Matrix
| Model Code | Conductor Range (mm2) | Minimum Breaking Load (kN) | Wedge Material |
|---|---|---|---|
| PA-1500 | 16 - 95 | 15 | UV-Stabilized Polymer |
| PA-2000 | 50 - 120 | 20 | High-Strength Nylon |
| PA-2500 | 70 - 150 | 25 | Fiberglass Reinforced Plastic |
Installation Guidelines for Overhead Line Hardware
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Strip the outer jacket only if specified by the cable manufacturer.
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Insert the insulated conductor thoroughly into the wedge channel.
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Pull the wedge firmly into the clamp body to initiate the self-locking mechanism.
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Secure the integrated bail to the pole bracket or anchor hook.
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Verify the visual alignment to ensure even distribution of mechanical tension.
Proper selection of a wedge-type tension clamp optimizes grid reliability. Matching the cable cross-section with the correct polymer wedge prevents slippage and preserves insulation integrity for decades.
