Office for Nuclear Regulation

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Hartlepool Power Station - Unit 2 Periodic Shutdown - Inspection of Electrical Related Aspects

Executive summary

Purpose of intervention

This report covers an outage inspection of EDF Energy Nuclear Generation Ltd (NGL) Hartlepool nuclear licensed site undertaken during Reactor 2 periodic shutdown, in line with ONR's operating facilities intervention programme 2016-2017. The inspection focussed on electrical aspects of the work set out in the outage intentions document and was undertaken by an ONR specialist electrical inspector, accompanied by a second ONR specialist electrical inspector.

Interventions Carried Out by ONR

The inspection considered the electrical work being undertaken as part of the Unit 2 periodic shutdown, including the planned work from the outage intentions document and any emergent work in this area. This intervention sampled the Licensee's implementation of licence conditions (LCs) 28 and 22 arrangements for Unit 2 electrical outage activities.

An inspection of Unit 2 outage-related electrical activities was carried out as part of the programme of outage-related safety inspections included on the Hartlepool site intervention plan for 2016 to confirm that the planned examination, maintenance, inspection, test and modification activities are being undertaken during the outage period.

Explanation of Judgement if Safety System Not Judged to be Adequate

The inspection was not a safety system inspection; therefore this section is not applicable.

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

During the course of the inspection I found the station to be maintaining its electrical plant and equipment in accordance with its arrangements, on the basis of the areas sampled by the inspection.

I judge the implementation of the LC 28 and LC 22 arrangements for the electrical equipment to be satisfactory. I have assigned an ONR Inspection rating of Green to LC 22 and LC 28.

Conclusion of Intervention

From the evidence gathered during this intervention, I am satisfied that the Hartlepool Unit 2 outage activities are being managed appropriately by the licensee. No electrical issues have been identified from the work completed to date that should affect the return to service, on completion of the planned work. No items have been identified from the outage intentions document which the station is planning to defer.

Based on this intervention and interactions with the licensee I consider that planned electrical work will be completed satisfactorily with no deferrals expected. Should deferrals become necessary, these will be justified under the station's arrangements. Therefore I support re-start of Unit 2 and operation for a further period.