H - Electricity – 01 – R
Patent
H - Electricity
01
R
H01R 43/048 (2006.01) H01B 17/32 (2006.01) H01B 19/00 (2006.01)
Patent
CA 2356326
When crimping metal end fittings (3) onto a fibre glass core rod (2) of a high or medium voltage electrical insulator (1) cracks may appear in the rod. To enable an early detection and prediction of cracks a monitoring method is proposed which includes the steps of: measuring the force and/or pressure applied to the end fittings (3) by the crimping jaws (11) during the crimping, measuring the distance travelled by the jaws (11) during the crimping, detecting a change in the ratio between force and/or pressure and distance. Using force and/or pressure transducers in the crimping apparatus allows a very reliable monitoring of the crimping process.
Lorsqu'on sertit des raccords terminaux (3) en métal sur une baguette (2) à noyau de fibres optiques d'un isolant électrique (1) à haute ou moyenne tension, des fissures peuvent apparaître sur la baguette. Pour permettre de détecter et de prédire de manière précoce les fissures, il est proposé un procédé de surveillance comprenant les étapes suivantes : - on mesure la force et/ou la pression qui s'exerce(ent) sur les raccords terminaux (3) par les mâchoires (11) de sertissage pendant l'opération de sertissage, - on mesure la distance parcourue par les mâchoires (11) pendant l'opération de sertissage, - on détecte un changement du rapport force et/ou pression et distance. Le fait d'utiliser des capteurs de force et/ou de pression dans l'appareil à sertir permet de surveiller de manière très fiable le processus de sertissage.
Kavanagh Ronan
Mcgowan Brian
Fetherstonhaugh & Co.
Tyco Electronics Uk Ltd
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