Direct buried cables should be sized for at least how many years?

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Multiple Choice

Direct buried cables should be sized for at least how many years?

The idea here is to plan the buried cable installation for the length of time you expect it to remain in service before a major upgrade or replacement is needed. For direct buried cables, the standard practice is to size them for at least twenty years. This 20-year horizon reflects typical network equipment refresh cycles, maintenance planning, and the realities of aging insulation and jackets in a buried, moisture-prone environment. Designing to this minimum helps avoid frequent trenching or costly early replacements, while still leaving room for later upgrades. While longer or shorter horizons can be used in specific cases, twenty years is the common minimum.

The idea here is to plan the buried cable installation for the length of time you expect it to remain in service before a major upgrade or replacement is needed. For direct buried cables, the standard practice is to size them for at least twenty years. This 20-year horizon reflects typical network equipment refresh cycles, maintenance planning, and the realities of aging insulation and jackets in a buried, moisture-prone environment. Designing to this minimum helps avoid frequent trenching or costly early replacements, while still leaving room for later upgrades. While longer or shorter horizons can be used in specific cases, twenty years is the common minimum.

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