Modular system for producing and sealing a line feedthrough

A modular system for producing and sealing a line feedthrough, the modular system comprising:

• a plurality of cladding tubes optionally having different cladding tube diameters, wherein each cladding tube forms an axial passage channel inside for passing through a single line and is closed by a sealing element on at least one of its two end faces, wherein the sealing element has a pierceable sealing membrane which is designed to enclose from all sides a line which is pierced through it;
• and
• a plurality of mounting plates, optionally which are identical in pairs and/or can be connected to one another edge to edge to form an enlarged surface, wherein each mounting plate has one or more cut-outs and each cut-out is designed for receiving and at least temporarily fixing one of the plurality of cladding tubes having an outer diameter that corresponds to the one or more cut-outs;
• wherein the one or more cut-outs in the respective each mounting plate are arranged and formed in relation to radial outer dimensions of the associated plurality of cladding tubes in such a way that an interspace for filling with a wall construction material remains between the plurality of cladding tubes which are fixed to directly adjacent cut-outs.