Computer Model of Atmospheric Ice Accretion on Transmission Lines

• 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

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.