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CEMSIS FIKS-CT-2000-00109. C ost- E ffective M odernisation of S ystems I mportant to S afety Deryk Pavey,. CEMSIS Objectives. Programmable Instrumentation and Control (I&C) safety systems (e.g. protection) safety-related systems (e.g. control, data presentation)
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CEMSISFIKS-CT-2000-00109 Cost-Effective Modernisation of Systems Important to Safety Deryk Pavey, wp6_beg022_v0_4_intro slides.ppt
CEMSIS Objectives • Programmable Instrumentation and Control (I&C) • safety systems (e.g. protection) • safety-related systems (e.g. control, data presentation) • Common approach to development and safety justification • maximise safety • minimise cost • Modernisation/Refurbishment • analogue/discrete logic replacement with computer-based systems wp6_beg022_v0_4_intro slides.ppt
‘Stakeholders’ in CEMSIS • Nuclear Plant Operator • British Energy (co-ord.) UK electricity generation • Electricite de France F electricity generation • British Nuclear Fuels UK nuclear fuel processing • Suppliers & System Integrators • Framatome ANP DE I&C supplier • Sycon International SE system developer • Safety Authorities & Assessors • AV Nuclear B inspection and licensing • Adelard UK safety consultancy • SKI (Sycon subcontract) SE inspection and licensing • IT Research • TU Lund SE research & education wp6_beg022_v0_4_intro slides.ppt
Key Issues • Harmonisation & Structuring of Safety Justification approaches • Definition of Requirements for Systems Important to Safety • Use of Pre-Existing Software in Systems Important to Safety • potentially including class A systems • Use of Languages and Tools in Systems Important to Safety wp6_beg022_v0_4_intro slides.ppt
4 2 4 4 4 2 1 4 3 2 1 4 4 3 2 4 CEMSIS Modernisation Context User requirements process Acceptance & Phased Introduction Project viability Normal operation and maintenance Utility Requirements document Safety Justification Plan Safety Justification Pre-qualification (independent assessor) Installation & Site Commissioning Tendering process Negotiation & Acceptance SIS requirements specification Validation SW Development Supplier SIS Implementation Decomposition & Design Amended SIS requirements Test and Verification Approval Discuss/ Agree Final Licensing / Approval Regulator Regular communication and informed comment Key: = Work Package Number wp6_beg022_v0_4_intro slides.ppt
Safety Justification Survey and Framework Safety Justification Framework WP1 Requirements Capture Survey and Lifecycle Requirements Capture Guidelines WP2 Case Studies: UK: fuel reprocessing F: PWR I&C replacement SE: safety monitoring + Public Domain Example WP5 Pre-Existing S/W Strategy & Techniques Pre-Existing S/W Guidelines WP3 Languages & Tools Review and Evaluate Languages & Tools Report WP4 WP0,6 Management and Dissemination Work Package Tasks wp6_beg022_v0_4_intro slides.ppt