Requirement library

Catalogue

23 requirements

Code	Question	Domain	Gate	Criticality	Expected evidence
OSS-GOV-001	Is a commissioning management plan approved and under revision control?	Governance	G0	High	Approved commissioning management plan with signature and revision record.
OSS-GOV-002	Are commissioning authorities, RASCI and escalation routes formally appointed?	Governance	G0	Medium	Appointment letters, RASCI matrix and organisation chart.
OSS-SYS-001	Is the system breakdown structure defined with testable commissioning boundaries?	Systemisation	G1	High	Approved SBS, boundary drawings and tagging convention.
OSS-ENG-001	Are single-line diagrams and protection philosophy issued as approved for construction?	Engineering maturity	G1	Gate-critical	AFC drawing register extract and TQ closure log.
OSS-ENG-002	Are earthing, bonding and lightning protection calculations approved?	Engineering maturity	G1	High	Approved calculation report and as-designed earthing layout.
OSS-ENG-003	Are protection settings calculated, approved and issued to site for the energisation boundary?	Engineering maturity	G5	Gate-critical	Approved settings calculation, settings file and relay firmware register.
OSS-DOC-001	Is a controlled document register available with revision status for all commissioning documents?	Documentation	G1	Medium	DMS register export with cut-off date.
OSS-DOC-002	Are vendor FAT reports and certificates received and reviewed for installed equipment?	Documentation	G3	High	FAT reports, certificate index and serial-number traceability list.
OSS-PRC-001	Are SAT and SIT procedures approved with quantified acceptance criteria?	Procedures	G2	Gate-critical	Approved SAT/SIT procedures with review comments closed.
OSS-PRC-002	Is an approved energisation procedure available with defined switching steps and boundaries?	Procedures	G5	Gate-critical	Approved energisation procedure, switching schedule and boundary marked-up SLD.
OSS-PLN-001	Does the commissioning schedule show logic, dependencies and offshore access windows?	Planning	G2	Medium	Schedule extract with logic and access windows.
OSS-CON-001	Is mechanical completion evidence available for the subsystem with punch status categorised?	Construction completion	G3	Gate-critical	MC certificates and categorised punch register.
OSS-CON-002	Are cable installation and termination records complete for the subsystem?	Construction completion	G3	High	Cable schedule with test records and termination sign-off.
OSS-TST-001	Are calibrated test tools and competent resources available?	Test readiness	G4	High	Calibration, mobilisation and competence evidence.
OSS-TST-002	Are test prerequisites and hold points agreed and signed by all parties?	Test readiness	G4	Gate-critical	Signed prerequisite checklist and witness/hold-point matrix.
OSS-SAF-001	Are electrical safety rules, PTW and LOTO implemented and appointments issued?	Electrical safety	G5	Gate-critical	Safety rules document, PTW audit record and signed appointment register.
OSS-SAF-002	Is the interlocking scheme proven against the approved energisation boundary?	Electrical safety	G5	Gate-critical	Interlocking proving test record signed by the HV Authorised Person.
OSS-INT-001	Are interfaces to the export cable, onshore substation and TSO defined and agreed?	Interfaces	G4	High	Signed interface register and interface control documents.
OSS-INT-002	Is the SCADA signal list verified end to end to the onshore control centre?	Interfaces	G6	Gate-critical	Signed signal list with point-to-point verification results.
OSS-HSE-001	Are SIMOPS controls and emergency response arrangements agreed for the commissioning phase?	HSE and SIMOPS	G4	High	SIMOPS matrix, ERP and exercise record.
OSS-QUA-001	Are ITPs, NCRs and deviations current with no open safety-related non-conformances?	Quality	G3	Medium	ITP status report and NCR/deviation register.
OSS-HND-001	Are as-built records, asset data, spares and operator training ready for acceptance?	Handover	G7	High	As-built register, asset data load confirmation, spares receipt and training records.
OSS-ITO-001	Is OT network segregation implemented and remote access controlled?	Engineering maturity	G6	High	Network architecture as-built, access control policy and hardening report.

Project overlays

Projects tailor the master library through overlays; the master requirement itself is never edited.

Project	Requirement	Applicability	Reason	Justification
NVW-OSS-01	OSS-HND-001	Applicable	Client training strategy agreed at PEM-14; master requirement unchanged.	—
NVW-OSS-01	OSS-ITO-001	Not applicable	Scope carve-out confirmed in writing; master requirement remains unchanged in library v1.0.	OT segregation for OSS Alpha is delivered and assured under the Nordvind fleet-wide cyber programme, assessed separately under contract NVW-CYB-03. Confirmed by IME Reviewer on 2026-08-11.