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A model to describe intermittency phenomena in electrical connectors

A model to describe intermittency phenomena in electrical connectors
A model to describe intermittency phenomena in electrical connectors
Fretting is known to be a major cause of contact deterioration and failure, particularly in tin-plated contacts. During fretting the contact resistance generally increases slowly with time. Superimposed to this slow increase in contact resistance are rapid changes in contact resistance within fractions of a second, called intermittences or short duration discontinuities.
Hi-speed measurements of contact voltage-drop and contact current have been carried out and the results are evaluated using general contact theory. It is shown that sudden changes in contact resistance can be caused by a surface film and by melting of current carrying asperities.
intermittence, intermittency phenomena, discontinuity, contact resistance, fretting corrosion, tin-plating
165-174
Maul, C.
b29b4565-722a-41de-9386-d1af3bcc7f04
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Maul, C.
b29b4565-722a-41de-9386-d1af3bcc7f04
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770

Maul, C. and McBride, J.W. (2002) A model to describe intermittency phenomena in electrical connectors. Forty-Eighth IEEE Holm Conference on Electrical Contacts. 21 - 23 Oct 2002. pp. 165-174 .

Record type: Conference or Workshop Item (Paper)

Abstract

Fretting is known to be a major cause of contact deterioration and failure, particularly in tin-plated contacts. During fretting the contact resistance generally increases slowly with time. Superimposed to this slow increase in contact resistance are rapid changes in contact resistance within fractions of a second, called intermittences or short duration discontinuities.
Hi-speed measurements of contact voltage-drop and contact current have been carried out and the results are evaluated using general contact theory. It is shown that sudden changes in contact resistance can be caused by a surface film and by melting of current carrying asperities.

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More information

Published date: October 2002
Venue - Dates: Forty-Eighth IEEE Holm Conference on Electrical Contacts, 2002-10-21 - 2002-10-23
Keywords: intermittence, intermittency phenomena, discontinuity, contact resistance, fretting corrosion, tin-plating

Identifiers

Local EPrints ID: 22114
URI: http://eprints.soton.ac.uk/id/eprint/22114
PURE UUID: 9e7c0104-b5d8-46d8-96d8-1c7893f9e231

Catalogue record

Date deposited: 05 Jun 2006
Last modified: 15 Jul 2019 19:23

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