1. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 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

2. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Agenda Description of the present SPS Access System -and where it does not satisfy the INB requirements Upgrade plan Compensatory measures for 2006 Run

3. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 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

4. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Access to SPS : Safety Chains

5. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 SPS Access Modes –Mode ‘Closed’ –Mode ‘Shutdown’ –Mode ‘Supervised Access’

6. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 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.

7. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 SPS Upgrade Project: phases and milestones t Système d’accès SPS actuel Système d’accès SPS actuel Nouveau Système d’accès SPS Mesures compensatoires Run ’06 SPS Run ‘07 SPS+LHC Run ‘’08 SPS+LHC Introduction d’une voie câblée redondante *Date suivant le schedule des accelerateurs Voie câblée redondante Shutdown

8. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 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!

9. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Compensatory measures 2006: connection with the AUG chains

10. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Doors being connected to AUG (Run 2006) Approx. 30 m distance

11. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Doors being connected to AUG (Run 2006)

12. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Doors being connected to AUG (Run 2006)

13. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Doors being connected to AUG (Run 2006)

14. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 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

15. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 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.

16. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Portes Blindées Logique Câblée SAFE UNSAFE EIS Faisceaux VETO voie câblée VETO voie PLC (MIS) V Projet Phase 2, Run 2007: Cable Loop

17. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Projet Phase 2, Run 2007: Cable Loop

18. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Project Phase 3: New SPS access system New architecture based on safety PLCs and cable loop implemented in 2007. Planning and cost under study.

19. SPS Access Project PL, EMP Chamonix XV, 23.01.2006 EDMS: 698337 Thank you for your attention!