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3. Fixed and sliding electrical contacts
There are two main types of contact
fixed contacts with separation perpendicular (opening contacts) or parallel (switches, circuit breakers) to the contact surface;
-
sliding contacts :
in one case, the surfaces of the two elements in contact are reduced and permanently used (brushes on commutator and bushes),
in another case, a single surface is reduced and always rubbing against the surface of a virtually infinite element (rubbers), the surface in contact never being the same.
In these applications, the advantage of carbon and, more often, graphite is that they don't...
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Fixed and sliding electrical contacts
References
In Engineering Techniques
Treated Non-metallic materials
- TI 1. DUMAS (D.), PARISOT (C.) et BUSCAILHON (A.) - Carbones et graphites - . A 7 400. 11.1984. (supprimé en mai 1996).
Mechanical engineering treatise
Standardization
Union Technique de l'Électricité (UTE) Association Française de Normalisation (AFNOR)
- Accessoires pour machines électriques. Balais pour porte-balais radiaux. - NF C 51-902 - 03-68
- Accessoires pour machines électriques. Porte-balais radiaux. - NF C 51-903 - 03-68
- Composants électroniques. Système CENELEC d'assurance de la qualité. Résistances fixes. Spécification générique. (Add. 1 12.83 ; Add. 2 05.84 ;...
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