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Pros and cons of overhead and underground power lines

Overhead

Pros:

  • Less expensive to build and repair
  • Easier to spot faults/damage
  • Can be built on any terrain

Cons:

  • Susceptible to wind, ice and snow
  • More vulnerable to damage from trees and vegetation
  • More vulnerable to blinks caused by animals
  • Susceptible to damage from vehicle collisions

Underground

Pros:

  • Less susceptible to vehicle collisions
  • Not impacted by trees, wind, ice and snows vulnerable to blinks caused by animals
  • Less vulnerable to blinks caused by animals

Cons:

  • More expensive to build and repair
  • Susceptible to flooding
  • Difficult to locate faults/damage
  • Vulnerable to damage from digging

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