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A systematic process built for decades of safe operation.

We apply the same disciplined, evidence-led development process to nuclear instrumentation and control as we do across our other sectors — working to recognised safety-system standards for protection, control, and monitoring functions where dependability is non-negotiable.

IEC 61508

Functional Safety of E/E/PE Safety-Related Systems

Safety integrity level (SIL) determination and lifecycle management following IEC 61508 underpin the design of protection and safety-related control functions, from concept through to decommissioning.

IEC 61513

I&C Systems for Nuclear Power Plants — General Requirements

System architecture and categorisation follow IEC 61513's framework for nuclear-specific instrumentation and control, ensuring consistency with plant-level safety classification.

IEC 60880

Software for Computer-Based Safety Systems

Software for category A functions is developed and verified against IEC 60880's requirements for software in computer-based systems performing safety functions in nuclear power plants.

Capability across the I&C lifecycle.

From safety classification through to verification evidence for licensing submissions, we support nuclear I&C programmes at any stage.

Development

  • System architecture & safety categorisation — architecture and categorisation aligned to IEC 61513's framework, with redundancy and diversity built in from the outset.
  • Requirements decomposition — allocating safety functions to system elements with the traceability a licensing submission requires.
  • Embedded software development — software developed under IEC 60880/60987 principles, with categorisation-appropriate rigour at every stage.
  • Platform qualification support — evidence packages to support qualification of programmable platforms for safety applications.

Verification & Assurance

  • SIL determination & safety lifecycle — hazard and risk assessment leading to SIL allocation under IEC 61508, carried through design and verification.
  • FMEA / FMEDA — failure modes, effects, and diagnostic analysis to substantiate diagnostic coverage and safe failure fraction claims.
  • Independent verification & validation (IV&V) — independent review and testing to support licensing submissions and regulatory engagement.
  • Safety case & licensing documentation — structured safety case documentation aligned to the plant's licensing basis.
REACTOR PROTECTION SAFETY I&C SIL DETERMINATION PLATFORM QUALIFICATION IV&V LICENSING SUPPORT

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Talk to us about your programme.

Whether you're starting a clean-sheet development or need independent verification on an existing system, we'd like to hear about it.