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Development and assurance of high integrity of digital I&C systems for Mitsubishi PWR plants MASHIO Kenji1, and SHIRASAWA Hiroshi2
1. Nuclear Electrical, Instrumentation & Control Engineering Department, Mitsubishi Heavy Industries, LTD. 1-1 Wadasaki-Cho 1-Chome Hyogo-Ku Kobe, 652-8585, Japan (kenji_mashio@mhi.co.jp)
2. Nuclear Electrical, Instrumentation & Control Engineering Department, Mitsubishi Heavy Industries, LTD. 1-1 Wadasaki-Cho 1-Chome Hyogo-Ku Kobe, 652-8585, Japan (hiroshi_shirasawa@mhi.co.jp)
Abstract: This document provides the development process and the high integrity assurance process of the digital I&C systems for the Mitsubishi PWR plants. To enhance the reliability of the digital I&C systems and the dependability of the software used in these systems, several design and quality assurance aspects are considered throughout the development, design, verification, tests and implementation phases of the Mitsubishi digital I&C system. This document also provides the overview of the Mitsubishi I&C systems for new PWR plants to understand the design and quality assurance process of the Mitsubishi I&C systems.
Keyword: Mitsubishi digital I&C; software dependability; software integrity; verification and validation
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