Temperature distribution over components with non-uniform current density

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Broken strands in a flexible cord carrying an electrical current may cause substantial localized high temperature. Such a high temperature may cause serious failure such as flame ignition of cord insulation. An analytical study is conducted to predict temperature rise distribution in electrical components with no uniform current density such as wires with broken strands. Temperature distributions are evaluated for different percentages of broken strands as well as the broken length.

Description

Broken strands in a flexible cord carrying an electrical current may cause substantial localized high temperature. Such a high temperature may cause serious failure such as flame ignition of cord insulation. An analytical study is conducted to predict temperature rise distribution in electrical components with no uniform current density such as wires with broken strands. Temperature distributions are evaluated for different percentages of broken strands as well as the broken length.

Additional information

Author(s)

Nasser Ghariban, Virginia State University, and Arnold E. Petsche, A.E. Petsche Co., Inc., USA

Publication/Event/Pages

Paper presented at WAI 74th Annual Convention, Cleveland, OH USA. Published in WJI, February 2005.

Year

2004