Effects of backfilling on cable ampacity analyzed with the finite element method

Francisco de León; George J. Anders

doi:10.1109/TPWRD.2008.917648

Effects of backfilling on cable ampacity analyzed with the finite element method

Francisco de León, George J. Anders

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Pages (from-to)	537-543
Number of pages	7
Journal	IEEE Transactions on Power Delivery
Volume	23
Issue number	2
DOIs	https://doi.org/10.1109/TPWRD.2008.917648
State	Published - Apr 2008

Keywords

Ampacity
Backfill
Cable thermal rating
External thermal resistance
Finite element method
Neher-McGrath
Underground cables

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1109/TPWRD.2008.917648

Cite this

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title = "Effects of backfilling on cable ampacity analyzed with the finite element method",

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.",

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AB - 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.

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Effects of backfilling on cable ampacity analyzed with the finite element method

Abstract

Keywords

ASJC Scopus subject areas

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