The security grade of nuclear power station is high, so the performance demand on Instrumentation and Control System is also high.

核电站的安全等级高，因此其对于仪控系统的性能要求也很高。

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The Siemens PG scope of supply encompasses the low-pressure turbines, the high-pressure feed heaters, the flash tanks, and an SPPA-T2000 instrumentation and control system.

西门子发电集团的服务范围包括低压涡轮，高压给水加热器，扩容器和SPPA - T2000仪器和控制系统。

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Now the Instrumentation and Control System of interior nuclear power station mostly uses analog control, in which the precision of data displaying and the degree of automation are both lower.

目前国内核电站的仪控系统大多以模拟控制为主，数据显示精度和自动化程度都比较低。

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Thus, the failures spanned the electrical system, cooling system and control and instrumentation systems at the plants.

WSJ: Nuclear Industry Likely to Reassess Safety Systems