Office for Nuclear Regulation

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Hinkley Point B - Planned Inspection - SBI06

Executive summary

Purpose of Intervention

This was a planned inspection of EDF Energy Nuclear Generation Ltd.’s (NGL’s) Hinkley Point B Power Station, 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 Hinkley Point 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

From the inspection, ONR judged that the Emergency Generation System met the requirements of the safety case and was adequate.

From the inspection I judged that the implementation of the arrangements related to the condition monitoring of electrical cables was adequate.

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

From the System Based Inspection on the Emergency Generation System, ONR concluded that:

From the inspection on the implementation of the arrangements related to the condition monitoring of electrical cables, I was satisfied with the discussions and explanations given and judge that there was no need for regulatory action on this occasion.

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

From the evidence sampled during this SBI-06 inspection against LCs 10, 23, 24, 27, 28 and 34, ONR consider that the Emergency Generation System met the requirements of the safety case.

From the discussions, explanations and demonstrations held during this inspection, I consider the implementation of the arrangements in relation to the condition monitoring of electrical cables to be adequate.

There are no findings from this inspection that could significantly undermine nuclear safety.  At present, no additional regulatory action is needed over and above the planned interventions at Hinkley Point B Power Station as set out in the Integrated Intervention Strategy, which will continue as planned.