DISPOSITIVO PER IL PASSAGGIO DEI CONDUTTORI DI INSTALLAZIONI ELETTRICHE E CENTRALI GENERATRICI DI ENERGIA ATTRAVERSO UN INVOLUCRO PROTETTIVO SEPARANTE UNA ZONA PULITA DA UNA CONTAMINATA.

摘要

The present invention relates to the field of electrical engineering. A device for passing electrical and power installation conductors through a protective shell separating a clean zone from a contaminated one comprises a hollow metal casing in the form of a tube with end flanges embedded in the body of the protective shell, the latter having a metal shield attached to the contaminated zone side of the shell. The metal casing contains a main insulating through element having at least one hole through which the conductor is passed, the ends of the conductor being in the clean and contaminated zones. Each end of the conductor is fitted with additional insulating through elements fixed to seal fittings rigidly coupling the additional insulating through elements with the end flanges and the conductor ends. The conductor has at least one section in the form of a rod on the contaminated zone side and a thermocompensating multi-strand section coupled electrically to the rod.