Strand leadthrough device

A strand leadthrough device for leading a plurality of strands in the form of cables or cable bundles, pipes, and/or tubes through a passage in a wall, comprising:

• a frame which is fastenable to an outer side of the wall and encloses at least one clearance through which the strands are led;
• a first sealing membrane which has a plurality of leadthrough openings through which a strand is led;
• a second sealing membrane having a plurality of leadthrough points through which a strand is led;
• and
• a shielding apparatus,
• wherein, in order to form a leadthrough channel for a strand, in each case one leadthrough point of the second sealing membrane is assigned in each case to one leadthrough opening in the first sealing membrane,
• wherein, in a region of the leadthrough points, the second sealing membrane has elastically deformable sealing lamellae which, in a starting state, lie against one another closing the leadthrough channel and, in a deformed use state, lie against a strand which is led through the leadthrough channel,
• wherein the shielding apparatus comprises a first contact plate, a second contact plate, and a contact layer arranged between first and second contact plate,
• wherein the contact layer has a plurality of leadthrough regions through which a strand is led, and
• wherein, in a region of the leadthrough regions, the contact layer has elastically deformable compact lamellae.