What is the expected lifespan of underground cable infrastructure?

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Multiple Choice

What is the expected lifespan of underground cable infrastructure?

Underground cable infrastructure is planned with a multi-decade service life. In practice, about 50 years is the typical lifespan assumed for buried cables and their surrounding infrastructure (conduits, manholes, and related components). This reflects how these assets age in a buried, moisture-prone environment, how load and technology evolve, and the need for scheduled renewals. While some parts may last longer or shorter in specific conditions, 50 years is the standard planning horizon for budgeting and asset management. Shorter forecasts (like 25 years) would lead to more frequent replacements, and much longer horizons (75–100 years) don’t align with expected aging and upgrades of buried networks.

Underground cable infrastructure is planned with a multi-decade service life. In practice, about 50 years is the typical lifespan assumed for buried cables and their surrounding infrastructure (conduits, manholes, and related components). This reflects how these assets age in a buried, moisture-prone environment, how load and technology evolve, and the need for scheduled renewals. While some parts may last longer or shorter in specific conditions, 50 years is the standard planning horizon for budgeting and asset management. Shorter forecasts (like 25 years) would lead to more frequent replacements, and much longer horizons (75–100 years) don’t align with expected aging and upgrades of buried networks.

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