System for non-reversible detection and display of electrical overcurrents or current limit values by means of a pre-finished conductor

The invention relates to a system for non-reversible detection and display of electrical overcurrents or current limit values by means of a pre-finished conductor. The conductor according to the invention has at least two conductor sections, spaced apart from each other and extending parallel to each other, which are designed for current to flow through in the same direction. At least one of the parallel conductor sections has a protrusion, a nose, or similar blocking element, which limits the path of movement of a mechanical display or switching element, such that the electromagnetic force acting on the parallel conductor sections during the flow of current transitions the blocking element into a release position in respect of the path of movement of the mechanical display or switching element. Such a system can be used particularly advantageously as a prior damage indicator in surge arresters. 本发明涉及一种用于借助预制导体不可逆地检测和显示过电流或限流值的系统。根据本发明，所述导体具有至少两个间隔开的、平行延伸的导体区段，其设计为供电流沿相同方向流通。平行的导体区段中的至少一个导体区段具有突出部、鼻状部或类似的阻挡元件