Question

Why do overhead telephone wires sag more in summer​

Answer 1

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The telephone wires will sag in summer due to expansions. While putting up the wires between the pole care is taken care in winter they are kept light so that they may not sag too much. ... So telephone wires will sag in summer due to expansion while you do suspect because of because of because of sighing expansion.

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Answer 2

The telephone wires will sag in summer due to expansions and will break in winter due to contraction. Therefore, while putting up the wires between the poles, care is taken that in summer they are kept slightly loose so that they may not break in winter due to contraction.

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