
What are the specific dangers of over-tensioning a cable, and how can they be avoided?
2025-08-16Answer from Ningbo Changshi: Over-tensioning is a serious risk that can lead to both immediate and long-term consequences. The dangers include:
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Internal Conductor Damage: Excessive tension can stretch or even break the delicate copper or aluminum conductors inside the cable. This damage is often not visible from the outside but can lead to a complete electrical failure over time.
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Insulation and Jacket Deformation: The outer jacket and insulation are designed to protect the conductors. Over-tensioning can deform or crush them, compromising the cable's ability to withstand environmental stress and potentially leading to a short circuit.
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Reduced Service Life: A cable that has been subjected to excessive tension will have a significantly shorter lifespan. The internal stress can lead to accelerated degradation, increasing the likelihood of failure years down the line.
These dangers can be avoided by:
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Calculating Tension: Always perform a pulling tension calculation before the job begins to establish a safe limit.
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Using a Tension Meter: A tension meter provides a real-time, objective measurement of the pulling force, allowing operators to immediately stop if the tension approaches or exceeds the safe limit.
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Correct Equipment: Using purpose-built equipment, such as our OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioner-puller machines with built-in electronic controls, ensures the pulling force is consistently regulated and never over-stressed.