3 ms·

Presumably, if you one use one wire, you will save half your money.

• benj111 8y ago
  Best case, I'm sure there are economies of scale.
• teraflop 8y ago
  Not only that, but if you have two wires at a high potential difference on poles, you have to be careful to keep them separated, even under adverse conditions e.g. high winds. Presumably, ensuring adequate clearance between a single wire and the ground is comparatively easier.
• deleted 8y ago
  [deleted]