
What are the specific challenges of pulling High-Voltage (HV) cables?
2025-08-15Professional Answer: Pulling HV cables requires a level of precision and control far beyond that of standard low-voltage cables. The main challenges stem from the high cost and sensitive nature of the cables themselves. The primary concerns are:
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Preventing Insulation Damage: The integrity of the HV cable's insulation is paramount. Exceeding the cable's minimum bending radius or applying excessive pulling tension can cause irreversible damage, leading to future electrical failure.
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Managing High Tensions: Due to their large size and weight, HV cables require significant force to pull. The challenge is applying this force in a controlled manner without exceeding the cable's maximum allowable tension.
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Protecting the Outer Sheath: Scratches or abrasions to the cable's outer sheath can compromise its long-term reliability and expose it to environmental damage.