Computer Model of Atmospheric Ice Accretion on Transmission Lines

Atmospheric ice accretions on transmission lines cause increased gravity and wind loads on the lines. In regions subject to icing conditions, transmission line design must take these loads into account. This report describes a numerical model for determining the accretion of ice on transmission line...

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Bibliographic Details
Main Authors: Jones, Kathleen F., Egelhofer, Kurt Z.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1991
Subjects:
Snow
Ice and Permafrost
Electrical and Electronic Equipment
*TRANSMISSION LINES
*ICE
LOADS(FORCES)
WIND
ECCENTRICITY
ICE FORMATION
REGIONS
GRAVITY
COMPUTERIZED SIMULATION
MATHEMATICAL MODELS
SENSITIVITY
*ICE FORMATION
LOAD DISTRIBUTION
FLEXIBLE STRUCTURES
MATHEMATICAL PREDICTION
SITE SELECTION
RELOCATION
STRUCTURAL PROPERTIES
PE61102A
AST24
WU005
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA234273
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA234273
Description
Summary:Atmospheric ice accretions on transmission lines cause increased gravity and wind loads on the lines. In regions subject to icing conditions, transmission line design must take these loads into account. This report describes a numerical model for determining the accretion of ice on transmission lines. The eccentric ice load causes a gradual rotation of the flexible conductor, which affects the shape and size of the accretion. The sensitivity of the gravity and wind load on the conductor to both atmospheric and structural variables is examined.

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