摘要 |
Method and device for preventing unauthorized operation of high-voltage apparatuses (B1, D1, D2) which are operated by means of a computer (CO). The method comprises a selection method, a supervision method and an execution method. The device comprises a relay unit (RU) with selection relays (SR), a blocking relay (BR) and execution relays (ER) as well as logical functions (SU) for supervision. <IMAGE> |