Bolt-type Tension Clamp Design: Guide To Gb/t 2314-2008 Standards
Standard Overview for Overhead Line Hardware
The GB/T 2314-2008 standard specifies general technical requirements for electric power fittings. For reliable grid distribution, implementing a high-quality bolt-type tension clamp ensures secure mechanical hold and optimal electrical continuity. These components prevent conductor slippage under extreme environmental tension.
Definition and Function
A bolted type strain clamp mechanical assembly secures AAC or ACSR conductors to tension towers, transferring heavy physical loads safely to the support structures.
| Technical Parameter | Standard Requirement (GB/T 2314) |
|---|---|
| Grip Strength | ≥95% of Conductor Breaking Strength |
| Material Grade | High-strength aluminum alloy / Hot-dip galvanized steel |
| Electrical Resistance | Lower than equivalent length of conductor |
Manufacturing Engineering and Grip Optimization
Proper manufacturing relies on precise torque distribution across the clamping body. A dead end strain clamp must distribute pressure evenly to avoid damaging outer conductor strands. Malleable iron or cast aluminum bodies receive precise machining to eliminate internal voids and stress concentration points.
Installation Best Practices
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Clean conductor strands thoroughly to remove surface oxides.
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Apply conductive grease evenly inside the groove before inserting wires.
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Tighten nuts progressively using a diagonal sequence to balance torque.
Selecting Hardware for Long-Term Grid Reliability
Choosing a correct bolted dead end clamp requires matching the specific outer diameter of the cable. Incorrect sizing leads to overheating or structural fatigue over extended operational lifecycles. Engineers prioritize cross-section compatibility to maintain network stability during peak loads.
