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Safety Concepts and Their Implications with Respect to Systems, Instrumentation, (Automatic) Control and Hardware. German Practice

机译：安全概念及其对系统，仪器，（自动）控制和硬件的影响。德国实践

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The first German 1300 MW nuclear power plant with a new generation of Leittechnique (IandC) equipment - of graded safety importance and designed on a modular basis - is running in full power operation: Grafenrheinfeld. The graded Leittechnique System is - as the first of its kind - designed according to the German KTA-rule 3501 which was issued in March 77. The System consists of 1) The well-known Reactor Protection System (RPS) 2) Two kinds of safety related Limitation Systems (in IAEA terminology: Limit Controls) 3) Three types of alarms, which are part of the overall Information System in the Main Control Room. 4) The operational Leittechnique Systems with no safety importance (including the highly developped Reactor Control System). It is our opinion that the application of this system of graded safety importance in a NPP is a big step in the direction of more reactor safety and according to the very successful and short commissioning of Grafenrheinfeld and the operation later on, it shows no negative effect on plant availability. (Atomindex citation 14:746734)

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