LINE PENETRATION WITH INTEGRATED SMOKE STOP

Line leadthrough (10) for leading lines through a structural element (30), with a jacket tube (11), with a base part (16) which is arranged on a first axial end (12) of the jacket tube (11) and has a receptacle (18), which surrounds a leadthrough opening (17), for a shielding means (19), with an annular, membrane-like sealing element (14) which is arranged on the first axial end (12) of the jacket tube (11), and with at least one sealing plug (15) which is arranged on a second end (13) of the jacket tube (11), wherein the sealing plug (15) is of cylindrical design and has a first end face (26) through which a line can be led, wherein the first end face (26) has a star-form division, wherein the circle sectors (KS) defined by the star-form division (ST) supplement one another to form a full circle with a circle centre point (KM), and wherein the sealing plug has a second end face (27) which faces away from and is spaced apart from the first end face (26), wherein the star-form division (ST), starting from the circle centre point (KM), widens along an axis of rotation (R) of the sealing plug (15) and in the direction of the second end face (27) in such a way that the second end face (27) is preferably circular ring-shaped, and a conical cavity (28) is formed within the sealing plug (15), with at least one guide groove (N) being formed along the lateral surface of said cavity, with the result that smoke gas tightness of the line leadthrough (10) is ensured. L'invention concerne un passage de câbles (10) servant à passer des câbles à travers un élément (30) et comportant un tube enveloppe (11), un élément de base (16) agencé au niveau d'une première extrémité axiale (12) du tube enveloppe (11) et présentant un espace de logement (18) entourant une ouverture de passage (17) et logeant un moyen de cloisonnement (19), un élément d'étanchéité (14) de type membrane qui est agencé au niveau de la première extrémité axiale (12) du tube enveloppe (11), et au moins un bouchon d'étanchéité (15) qui est agencé au niveau d'une seconde extrémité (13) du tube enveloppe (11). Le bouchon d'étanchéité (15) est de forme cylindrique et présente une première surface frontale (26) à travers laquelle un câble peut être introduit, la première surface frontale (26) est divisée en étoile, les secteurs circulaires (KS) définis par la division en étoile (ST) complètent un point médian de cercle (KM) pour former un cercle complet, et le bouchon d'étanchéité (15) présente une seconde surf