NDLI: Probabilistic cable rating based on cable thermal environment studying

Content Provider	IEEE Xplore Digital Library
Author	Zhao, H.C. Lyall, J.S. Nourbakhsh, G.
Copyright Year	2000
Description	Author affiliation: Sch. of Electr. & Electron. Syst. Eng., Queensland Univ. of Technol., Brisbane, Qld., Australia (Zhao, H.C.)
Abstract	This paper describes a new approach to establish the probabilistic cable rating based on cable thermal environment studies. Knowledge of cable parameters has been well established. However the environment in which the cables are buried is not so well understood. Research in Queensland University of Technology has been aimed at obtaining and analysing actual daily field values of thermal resistivity and diffusivity of the soil around power cables. On-line monitoring systems have been developed and installed with a data logger system and buried spheres that use an improved technique to measure thermal resistivity and diffusivity over a short period. Based on the long-term continuous field data for more than 4 years, a probabilistic approach is developed to establish the correlation between the measured field thermal resistivity values and rainfall data from weather bureau records. Hence, a probabilistic cable rating can be established based on monthly probabilistic distribution of thermal resistivity.
Starting Page	1071
Ending Page	1076
File Size	574873
Page Count	6
File Format	PDF
ISBN	0780363388
DOI	10.1109/ICPST.2000.897169
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-12-04
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thermal resistance Power cables Moisture Power cable insulation Australia Monitoring Soil measurements Thermal conductivity Temperature Thermal loading
Content Type	Text
Resource Type	Article

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