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1. The number of cases during the winter
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2. The duration of the precipitation
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3. The amount of precipitation (bottom cuttings and the weight of ice deposits in the cables)
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4. Air and wind temperature in the presence of precipitation
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5. Relatively large number of severe days
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6. Replication of various maximum indicators
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7. Maximum wind load (Q) and wind glaciation (R)
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8. The thickness of the dimensional wall and ice, which corresponds to its existence 1 time in n years