For safe and reliable operations, particularly in overhead line stringing, you should look for several key safety features:

• High-strength materials: Forged, heat-treated alloy steel or aluminum alloy to withstand high pulling forces.

• Non-slip parallel jaws: Jaws that provide a firm, even grip without damaging the conductor's surface.

• Safety latch or lock: A mechanism to prevent the clamp from accidentally releasing during the pulling process.

• Protective linings or inserts: Some clamps for delicate cables (e.g., insulated or fibre optic) are designed with protective rubber or nylon inserts to prevent damage.

• Clear markings: All professional clamps should be clearly marked with their working load limit (WLL) and serial number for easy identification and traceability.

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