An HV switchgear maintenance programme should be set from makers' recommendations and HSG230 and agreed with the Authorising Engineer (HV), with Authorised Persons (HV) familiar with it and HTM 06-03. Planning should minimise effects on resilience; standby generation can support isolation. A regular operational switching routine should keep function and staff competence. An HV grading and loading study should follow any network change, and the Group should consider a review within five years. Secondary injection tests should be at regular intervals set by plant history, experience and maker guidance (not staffing), with a maximum interval decided. Protection should be proof-checked before breakers return from long outages, and HV work needs a permission for disconnection document and permit-to-work.
This control maps to 1 controls across 1 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.
The graph holds this control, the 1 it maps to, and the evidence behind each claim, over MCP and REST.