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

Lasse Makkonen (Corresponding Author), B. Wichura

Research output: Contribution to journalArticleScientificpeer-review

25 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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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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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

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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.

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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

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