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SPS Access Safety System

The SPS Access Project Team presents an overview of the current SPS Access System, highlighting its shortcomings in meeting INB requirements. This includes an upgrade plan and compensatory measures for the 2006 run. Key components such as access points, safety chains, power converters, and access modes are discussed. The introduction of a redundant cable loop system is planned for improved safety architecture. This initiative aims to enhance critical safety functions and ensure compliance with INB policies for redundancy in safety systems.

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SPS Access Safety System

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  1. SPS Access Safety System Patrick Lienard, Elena Manola-Poggioli on behalf of the SPS Access Project Team: M.Grill, S.Grau, P.Lienard, E.Manola-Poggioli, R. Nunes, R.Villard TS/CSE C.Arimatea, J.Axensalva, J.Ridewood, G.Robin AB/OP EDMS: 698337

  2. Agenda • Description of the present SPS Access System • and where it does not satisfy the INB requirements • Upgrade plan • Compensatory measures for 2006 Run EDMS: 698337

  3. Access to SPS • EIS Acces: • Access Points • ‘Portes Grille’ • ‘Portes blindee’ • ‘Monte charge’ • ‘Puisards Techniques’ • EIS Faisceau: • Power Converters 400V • Power Converters 18kV • BHZ 377 • TEDs • Extraction kickers EDMS: 698337

  4. Access to SPS : Safety Chains EDMS: 698337

  5. SPS Access Modes • SPS Access Modes • Mode ‘Closed’ • Mode ‘Shutdown’ • Mode ‘Supervised Access’ EDMS: 698337

  6. System Architecture (from 1995) • All safety functions based on a S5 PLCs architecture, single points of failure. • Excellent “retour d’experience”. • The INB policy is to always have redundancy in all critical safety systems. EDMS: 698337

  7. SPS Upgrade Project: phases and milestones Introduction d’une voie câblée redondante Shutdown Shutdown Mesures compensatoires Voie câblée redondante + + Nouveau Système d’accès SPS Système d’accès SPS actuel Système d’accès SPS actuel t Run ‘’08 SPS+LHC Run ‘07 SPS+LHC Run ’06 SPS *Date suivant le schedule des accelerateurs EDMS: 698337

  8. Compensatory measures: Run 2006 • Access doors: • Caps on the doors locks, but only in entry direction • Emergency exits non affected • Sector doors in the transfer lines used as emergency exits will be connected directly to neighboring AUG chains: • PPG66003 in TT6 in to extraction zone towards TI2 • PPG4004 in TT40 in the extraction zone towards TI8 and CNGS • PPG21161 in the interface zone between TT20 and target region TCC2. • PPG100611 in TT10 in the transfer tunnel between PS and SPS OPENING THE DOOR WILL TRIGGER AN EMERGENCY STOP OF SPS! EDMS: 698337

  9. Compensatory measures 2006: connection with the AUG chains EDMS: 698337

  10. Doors being connected to AUG (Run 2006) Approx. 30 m distance EDMS: 698337

  11. Doors being connected to AUG (Run 2006) EDMS: 698337

  12. Doors being connected to AUG (Run 2006) EDMS: 698337

  13. Doors being connected to AUG (Run 2006) EDMS: 698337

  14. Compensatory measures 2006 • Installation and test (TS-CSE, TS-EL, AB-OP) • Test protocol is being prepared • Signalization: ATTENTION: L‘ouverture provoque l'arret d'urgence general Contactez la Salle de Controle: Tel 77500 EDMS: 698337

  15. Project Phase 2, Run 2007: Cable Loop • In redundancy with the present PLC based system. • Limited scope (LHC solution): Detect an intrusion on the external envelope and put in the safe position the ‘EIS-faisceau’. • One cable loop per chain: no conflict with the present SPS operating modes. EDMS: 698337

  16. Projet Phase 2, Run 2007: Cable Loop SAFE Logique Câblée Portes Blindées UNSAFE VETO voie câblée VETO voie PLC (MIS) V EIS Faisceaux EDMS: 698337

  17. Projet Phase 2, Run 2007: Cable Loop EDMS: 698337

  18. Project Phase 3: New SPS access system • New architecture based on safety PLCs and cable loop implemented in 2007. • Planning and cost under study. EDMS: 698337

  19. Thank you for your attention! EDMS: 698337

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