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Krzysztof Cwidak - The comparison of thermal properties of test rig, fuse-holder and switch-disconnector-fuse

Krzysztof Cwidak

Electrotechnical Institute Gdansk Branch, Narwicka 1, 80-557 Gdansk, Poland, krzysztof.cwidak@iel.gda.pl

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Abstract

The paper presents results of verification of conventional non-fusing current and fusing current performed with the usage of the test rig according to IEC 60269-3, fuse-bases with fuse-carriers and switch-disconnector-fuse. The results show that the test rig according to IEC 60269-3 is not a thermal equivalent apparatus to the fuse-holders. Furthermore, the switch-disconnector-fuse has even worse cooling conditions of the fuse-link than fuse-holders.