Combination of a border of an opening, a closure element for the opening and a burglar alarm

摘要

The arrangement has a closure element (2) associated with the opening (1) and the edging (6) is part of a housing (4) for enclosing a hollow volume (5). A joint (7) between the edging and closure element is accessible from the outside for breaking in with a tool (8) and contains an externally concealed attack detector (3) in the form of an electrical conductor with the mechanical breaking behavior of a brittle material when loaded transversely. AN Independent claim is also included for the following: an electrical conductive long prism body for use as an attack detector.