Recognizing leakages in membranes for liquid media comprises providing membrane with swelling fleece which combines electrically conducting conductors or separates them under action of liquid

摘要

Recognizing leakages in membranes for liquid media comprises providing the membrane (1) with a swelling fleece (8,9) which combines the electrically conducting conductors (5,6) or separates them under the action of the liquid. Preferred Features: The membrane has a sandwich structure consisting of at least two membrane layers (3,4), and the conductors are embedded between the membrane layers.