
How do you manage heat dissipation and thermal issues for 132 kV underground cables?
2025-08-14Efficient heat dissipation is crucial for the performance and longevity of 132 kV underground cables. The insulation and surrounding environment play a key role. Our solutions and best practices address this through:
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Cable Design: Utilizing XLPE insulated cables with specific designs to handle thermal stress.
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Bedding Material: Surrounding the cable with a thermal backfill material, such as specific sands, to conduct heat away from the cable.
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Installation Depth: Laying the cables at a sufficient depth to take advantage of the ground's natural cooling properties.
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Trefoil Formation: Arranging the single-core cables in a trefoil formation to optimize heat dissipation and minimize electromagnetic interference.