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Upgrade Strategies for Digital I&C Systems

| 2019:622 | Fredrik Bengtsson and Johan Slotte
Is it possible to find an optimal general upgrade strategy for digital I&C system for Nuclear Power Plants? The answer is both Yes and No. This report discusses general recommendations and conclusions regarding upgrade strategies.
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Based upon experience from other industries, the trend is to follow the supplier’s recommendation regarding upgrades and avoid individually developed applications.

Finding a general golden strategy is however not possible, since the life cycle cost will depend on the overall strategy of the power plant. This analysis will be system specific and need to be maintained during the system lifetime.