Office for Nuclear Regulation

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Reactor 2 2018 Statutory Outage Civil Engineering LC 28 Inspection

Executive summary

Purpose of Intervention

Under Licence Condition 30(3) the licensee, EDF Energy Nuclear Generation Limited (NGL) requires consent from the Office for Nuclear Regulation (ONR) to start-up Heysham 1 Reactor 2 after a periodic shutdown.  I have undertaken this planned intervention to inspect the civil engineering aspects of the Reactor 2 pre-stressed concrete pressure vessel inspection and maintenance programme.

This intervention was in accordance with ONR’s planned inspection programme contained in the Heysham 1 Reactor 2 2018 Periodic Shutdown Plan.

My intervention evaluated compliance with Licence Condition 28 (examination, inspection, maintenance and testing) by sampling the following activities:

The main purpose of the examinations, inspections, maintenance and tests is to ­­provide evidence in support of the Appointed Examiner’s judgement on whether the pre-stressed concrete pressure vessel remains fit for continuing operation.

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

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

Overall I judged from the sampled activities, my inspections and the records provided that:

Based on my findings I judge that the following inspection rating against Licence Condition 28 (examination, inspection, maintenance and testing) is appropriate: Green.

Conclusion of Intervention

There are no findings from this inspection that could significantly undermine nuclear safety and no change is necessary to the planned interventions and inspections at Heysham 1 as a result. 

The findings of this intervention record and my subsequent assessment report will inform ONR’s decision whether to issue consent for start-up of Reactor 2 on completion of its 2018 shutdown. My intervention did not identify any matters that are likely to prevent ONR from issuing consent for start-up of Reactor 2.