Line leadthrough for the leadthrough of lines through a component

A line penetration for routing a line through a passage opening of a building part that comprises a first and a second building-part wall, between which an intermediate space is provided, the line penetration comprising:

• a closure element that comprises:
• an inner part for filling the intermediate space in the region of the passage opening;
• holding parts, with cross section smaller than that of the inner part, disposed on both sides of the inner part;
• a straight-through line opening, which penetrates the inner part and the holding parts in the direction in which they are disposed;
• and
• a sliding device, which is formed in order to guide the line slidingly and gas-tightly through the line opening,
• wherein the line penetration further comprises a clamp, which has circlips that circumferentially surround the holding parts, suitable for holding the closure element on the line,
• wherein each circlip substantially surrounds one of the holding parts;
• wherein the clamp further comprises a bridge fastened to the circlips.