Simulating wet snow loads on power line cables by a simple model

Lasse Makkonen (Corresponding Author), B. Wichura

    Research output: Contribution to journalArticleScientificpeer-review

    30 Citations (Scopus)

    Abstract

    A wet snow event in the northwest part of Germany caused extensive damage to electric power lines in November 2005. Maximum wet snow loads of approximately 50 Nm−1 were estimated by evaluating the snow deposit diameter from photographs and the snow density from meteorological data. A simple wet snow accretion model was applied to reconstruct the snow accretion process. The maximum wet snow loads estimated by the model are in good agreement with the observations when the model input parameter, visibility, was adjusted by a constant factor for night-time observations. The improved wet snow accretion model was also applied to historical weather data for the area demonstrating the power and weaknesses of the extreme value analysis of wet snow events.
    Original languageEnglish
    Pages (from-to)73-81
    Number of pages9
    JournalCold Regions Science and Technology
    Volume61
    Issue number2-3
    DOIs
    Publication statusPublished - 2010
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    power line
    Snow
    cable
    Cables
    snow
    accretion
    Value engineering
    Visibility
    visibility
    photograph
    Deposits
    weather
    damage

    Keywords

    • damage
    • icing
    • power lines
    • snow
    • snow storm
    • wet snow

    Cite this

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    title = "Simulating wet snow loads on power line cables by a simple model",
    abstract = "A wet snow event in the northwest part of Germany caused extensive damage to electric power lines in November 2005. Maximum wet snow loads of approximately 50 Nm−1 were estimated by evaluating the snow deposit diameter from photographs and the snow density from meteorological data. A simple wet snow accretion model was applied to reconstruct the snow accretion process. The maximum wet snow loads estimated by the model are in good agreement with the observations when the model input parameter, visibility, was adjusted by a constant factor for night-time observations. The improved wet snow accretion model was also applied to historical weather data for the area demonstrating the power and weaknesses of the extreme value analysis of wet snow events.",
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    author = "Lasse Makkonen and B. Wichura",
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    language = "English",
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    Simulating wet snow loads on power line cables by a simple model. / Makkonen, Lasse (Corresponding Author); Wichura, B.

    In: Cold Regions Science and Technology, Vol. 61, No. 2-3, 2010, p. 73-81.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Simulating wet snow loads on power line cables by a simple model

    AU - Makkonen, Lasse

    AU - Wichura, B.

    PY - 2010

    Y1 - 2010

    N2 - A wet snow event in the northwest part of Germany caused extensive damage to electric power lines in November 2005. Maximum wet snow loads of approximately 50 Nm−1 were estimated by evaluating the snow deposit diameter from photographs and the snow density from meteorological data. A simple wet snow accretion model was applied to reconstruct the snow accretion process. The maximum wet snow loads estimated by the model are in good agreement with the observations when the model input parameter, visibility, was adjusted by a constant factor for night-time observations. The improved wet snow accretion model was also applied to historical weather data for the area demonstrating the power and weaknesses of the extreme value analysis of wet snow events.

    AB - A wet snow event in the northwest part of Germany caused extensive damage to electric power lines in November 2005. Maximum wet snow loads of approximately 50 Nm−1 were estimated by evaluating the snow deposit diameter from photographs and the snow density from meteorological data. A simple wet snow accretion model was applied to reconstruct the snow accretion process. The maximum wet snow loads estimated by the model are in good agreement with the observations when the model input parameter, visibility, was adjusted by a constant factor for night-time observations. The improved wet snow accretion model was also applied to historical weather data for the area demonstrating the power and weaknesses of the extreme value analysis of wet snow events.

    KW - damage

    KW - icing

    KW - power lines

    KW - snow

    KW - snow storm

    KW - wet snow

    U2 - 10.1016/j.coldregions.2010.01.008

    DO - 10.1016/j.coldregions.2010.01.008

    M3 - Article

    VL - 61

    SP - 73

    EP - 81

    JO - Cold Regions Science and Technology

    JF - Cold Regions Science and Technology

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    IS - 2-3

    ER -