Warning system for preventing danger to person in hall e.g. sports hall, has rope/wire attached to hall roof base by roller and kept at constant tension and at constant height by load that is independent of temperature fluctuations

摘要

The system has a rope or a wire (7) that is attached to a hall roof base by a roller (8) in a support axis of a hall roof truss, where the truss is supplemented by accessory components. The rope is kept at constant tension and height by a load independent of temperature fluctuations. A metallic contact point provided in a center of a clamping unit supplies current, and a panel (4) with two-way contact is fastened to an antipole.