DocumentCode
1098621
Title
Effects of Backfilling on Cable Ampacity Analyzed With the Finite Element Method
Author
De León, Francisco ; Anders, George J.
Author_Institution
Polytech. Univ., Brooklyn
Volume
23
Issue
2
fYear
2008
fDate
4/1/2008 12:00:00 AM
Firstpage
537
Lastpage
543
Abstract
Expressions for computing the external thermal resistance (T4) of buried cables, in both the IEEE and the IEC standards, are applicable to a limited number of installation geometries. In this paper, a method for the computation of T4 using the finite element approach is presented. With this method, a parametric study on how cable ampacity is affected by different configurations of the backfills is performed. The obtained results are compared with those of the IEC and IEEE standards (Neher-McGrath) and published extensions by El-Kady and Horrocks. Important differences can be observed for nonstandardized situations.
Keywords
IEC standards; IEEE standards; finite element analysis; power cables; thermal resistance; underground cables; IEC standards; IEEE standards; backfilling effect; buried cables; cable ampacity; external thermal resistance; finite element method; Ampacity; Neher–McGrath; backfill; cable thermal rating; external thermal resistance; finite element method; underground cables;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/TPWRD.2008.917648
Filename
4470560
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