Office for Nuclear Regulation

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Planned inspection at Dungeness B power station

Executive summary

Purpose of Intervention

This was a planned inspection at EDF Energy Nuclear Generation Ltd's (NGL's) Dungeness B power station. It was undertaken as part of the planned intervention strategy for the Operating Facilities Division (OFD) of the Office for Nuclear Regulation (ONR).

The work was carried out in-line with the planned inspection programme contained in the Dungeness B Integrated Intervention Strategy (IIS).

Interventions Carried Out by ONR

During this intervention, the following key activities were undertaken:

Explanation of Judgement if Safety System Not Judged to be Adequate

No system based inspection undertaken, hence not applicable.

Key Findings, Inspector's Opinions and Reasons for Judgements Made

I undertook a planned unannounced inspection during silent hours, focusing on commissioning activities associated with LC24, LC25 and LC26 during reactor 21 periodic shutdown, I:

The intervention was performed in line with ONR’s guidance requirements (as described in our technical inspection guides) in the areas inspected.

Conclusion of Intervention

In relation to the planned unannounced inspection which focussed on start-up activities and shift handovers, I judge no formal action is required and a GREEN rating has been assigned to LC24, LC25 and LC26.

There are no findings from this inspection that could significantly undermine nuclear safety.