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
October 2002
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, Orlando, USA.
20 - 22 Oct 2002.
.
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, Orlando, USA, 2002-10-20 - 2002-10-22
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
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Date deposited: 05 Jun 2006
Last modified: 12 Mar 2022 02:33
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Contributors
Author:
C. Maul
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