Three-column insulating electrical switch

The present invention relates to an insulating electrical switch comprising first and third lateral fixed insulating columns, and a second central insulating column. According to the invention, the said central column 5 can rotate axially, one end of the latter being associated transversely with two first axially movable contacts, which can couple with and uncouple from second contacts 32 rigidly associated with the said first 3 and third 4 columns, the said first contacts 23, 24 and the said second contacts 32 being associated with means 31, 34 of permanent protection from pollution from the environment and ice formation, the said insulating switch 1 being provided with means for maintaining electrical continuity between the said first contacts. The invention applies to three-column insulating electrical switches. LA PRESENTE INVENTION CONCERNE UN COMMUTATEUR ELECTRIQUE ISOLANT, COMPRENANT DES PREMIERE ET TROISIEME COLONNES ISOLANTES FIXES LATERALES, ET UNE DEUXIEME COLONNE ISOLANTE CENTRALE.SELON L'INVENTION, LADITE COLONNE CENTRALE 5 PEUT TOURNER AXIALEMENT, A UNE EXTREMITE DE CELLE-CI ETANT ASSOCIES TRANSVERSALEMENT DEUX PREMIERS CONTACTS MOBILES AXIALEMENT, QUI PEUVENT SE COUPLER AVEC ET SE DECOUPLER DE SECONDS CONTACTS 32 RIGIDEMENT ASSOCIES AUXDITES PREMIERE 3 ET TROISIEME 4 COLONNES, AUXDITS PREMIERS CONTACTS 23, 24 ET AUXDITS SECONDS CONTACTS 32 ETANT ASSOCIES DES MOYENS 31, 34 DE PROTECTION PERMANENTE CONTRE LA POLLUTION DE L'ENVIRONNEMENT ET LA FORMATION DE GLACE, LEDIT COMMUTATEUR ISOLANT 1 ETANT MUNI DE MOYENS POUR MAINTENIR LA CONTINUITE ELECTRIQUE ENTRE LESDITS PREMIERS CONTACTS.L'INVENTION S'APPLIQUE A DES COMMUTATEURS ELECTRIQUES ISOLANTS A TROIS COLONNES.