Office for Nuclear Regulation

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Sizewell B - Planned Intervention

Executive summary

Purpose of Intervention

The purpose of this intervention was to undertake Licence Condition (LC) compliance inspections at EDF Energy Nuclear Generation Ltd’s (NGL’s) Sizewell B power station, in line with the planned inspection programme of the Operating Facilities Operating Reactors sub-programme intervention plan for 2017/18.

Interventions Carried Out by ONR

During this intervention, I undertook an unannounced inspection against elements of the station’s onsite emergency arrangements, during which I measured compliance against the following Licence Condition:

Also during this intervention I:

Explanation of Judgement if Safety System Not Judged to be Adequate

No system inspection was undertaken during this intervention.

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

I made the following principal findings in relation to LC 11 (emergency arrangements):

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

I consider that, based on the evidence acquired during this intervention, an inspection rating of Green is appropriate for LC 11 (emergency arrangements).