Executive summary
Date(s) of inspection
- September 2026
Aim of inspection
The aim of this inspection was to target items that are not normally available to inspect during normal working hours inspections. The inspection considered different routes at HY1 for setting to work out of normal hours including implementation of recent improvements made to the process. The area sampled was isolations. Isolations are mainly applied out of hours to allow work to be carried out during the normal working day.
Subject(s) of inspection
- LC11 - Emergency arrangements - Rating: Not rated
- LC26 - Control and supervision of operations - Rating: Green
Key findings, inspector's opinions and reasons for judgement made
This out of hours unannounced inspection was undertaken overnight between 2000 on 20 September 2026 and 0100 on 21 September 2026. I sampled four isolations, three electrical and one mechanical. This inspection consisted of plant walkdowns, discussions with staff and sampling of work documentation. A number of minor items were found on plant that will be actioned through the sites normal action tracking system, along with some good practise observations. I gave three pieces of advice and raised one regulatory issue regarding sequencing of isolations that had both a site and EDF corporate element.
Conclusion
From the evidence sampled, in my opinion, the LC26 control and supervisions aspects met the requirements of NS-INSP-GD-026 - LC26 Control and Supervision of Operations and I gave a GREEN rating (no formal enforcement). I sampled a very limited part of the LC 11 arrangements so will not be rating LC 11 due to the restricted sample size however for the specific part of LC 11 to implementing arrangements with the support of persons not on site out of hours, the site was able to demonstrate it has access to off site personnel who were responsive to a call.