1. Update on the Critical Path of the PS Booster Schedule for the EYETS 2016-2017
LSC – LS2 Committee
On behalf of the EN-ACE-OSS team
29th July 2016
Julie Coupard EN-ACE

2. Previous information CMS interventions during the EYETS
LSC
27-May
IEFC
3-June
LSC
24-June
LMC
29-June
LSC
29-Jul
CMS interventions during the EYETS
Update on the Critical Path of the PS Booster
Schedule for the EYETS
Presentation of the Decabling Project Overview,
Strategy for the PSB and SPS-P5
Update of the EYETS baseline schedule,
Shortened 2017 hardware test and associated risks,
De-cabling in the PSB and SPS during the RUN 2016
Update on the Risk Assessment linked to the Re-Routing
of the Electrical Network in Pt1 of the LHC,
Survey on “Chargés de Consignation” - Status Update,
29-Jul-2016
Update on the Critical Path of the PS Booster Schedule for the EYETS Julie Coupard EN-ACE

3. Previous information CMS interventions during the EYETS
LSC
27-May
IEFC
3-June
LSC
24-June
LMC
29-June
LSC
29-Jul
CMS interventions during the EYETS
Update on the Critical Path of the PS Booster
Schedule for the EYETS
Presentation of the Decabling Project Overview,
Strategy for the PSB and SPS-P5
Update of the EYETS baseline schedule,
Shortened 2017 hardware test and associated risks,
De-cabling in the PSB and SPS during the RUN 2016
Update on the Risk Assessment linked to the Re-Routing
of the Electrical Network in Pt1 of the LHC,
Survey on “Chargés de Consignation” - Status Update,
29-Jul-2016
Update on the Critical Path of the PS Booster Schedule for the EYETS Julie Coupard EN-ACE

4. Previous information LSC - 27th May IEFC – 3rd June
10 weeks for the de-cabling in 2 shifts
2.5 weeks for the LIU mandatory cabling activities in 2 shifts (priority 1)
Actions to be performed to accommodate this timeline:
Analysis and actions taken by EN-EL to include part of the End of the Year Holiday period and Saturdays to the work contract (implying extra costs, additional manpower (4 persons in total including SPS de-cabling and LIU cabling) and support from CERN groups)
Analysis by BE-OP (Bettina Mikulec) of the Hardware commissioning period and agreement to shorten the hardware tests by one week (with identification of the risks and mitigations)
IEFC – 3rd June
Above analyses performed. Agreement on the PSB schedule between EN-EL, BE-OP, and checked by EN-ACE for co-activities
Request to anticipate some work for EN-EL before the EYETS (approved at IEFC 3rd June) – alleviating some of the schedule and co-activity risks
29-Jul-2016
Update on the Critical Path of the PS Booster Schedule for the EYETS Julie Coupard EN-ACE

5. Previous information CMS interventions during the EYETS
LSC
27-May
IEFC
3-June
LSC
24-June
LMC
29-June
LSC
29-Jul
CMS interventions during the EYETS
Update on the Critical Path of the PS Booster
Schedule for the EYETS
Presentation of the Decabling Project Overview,
Strategy for the PSB and SPS-P5
Update of the EYETS baseline schedule,
Shortened 2017 hardware test and associated risks,
De-cabling in the PSB and SPS during the RUN 2016
Update on the Risk Assessment linked to the Re-Routing
of the Electrical Network in Pt1 of the LHC,
Survey on “Chargés de Consignation” - Status Update,
29-Jul-2016
Update on the Critical Path of the PS Booster Schedule for the EYETS Julie Coupard EN-ACE

6. Current updated schedule
LMC – 29th June
CMS requested a shutdown of 20 weeks rather than the originally scheduled 19 weeks for the pixel installation and other necessary repair and maintenance activities (approved at LMC 29th June)
Baseline of the EYETS schedule updated by adding 1 week of work for the PSB, PS, SPS and LHC machine (including the Experimental Areas) EDMS ATS-PM-MS-0001 “Length of the YETS / EYETS / YETS ” version 2.2 Under Approval
Efforts from EN-EL to include cabling request (priority 2) ~80%
Courtesy David Hay
IN WORK
29-Jul-2016
Update on the Critical Path of the PS Booster Schedule for the EYETS Julie Coupard EN-ACE

7. Current updated schedule
Work in progress to prepare the EYETS of the PSB
De-cabling Project
LIU Project (i.e. new beam instrumentations, anticipation of LS2 works)
Consolidation Program
Groups requests (i.e. repair of the BHZ151 vacuum pipes)
Safety aspects (i.e. Stabilization of the false-floor, Electrical Locking-out)
IN WORK
IN WORK
IN WORK
Courtesy David Hay
29-Jul-2016
Update on the Critical Path of the PS Booster Schedule for the EYETS Julie Coupard EN-ACE

8. Stabilization of the false-floor
The stabilization of the false-floor is under discussion through the De-cabling Project working group between EN-ACE, EN-EL, HSE-SEE, SMB-SE.
4 solutions have been defined, depending on the rack situation:
Supports under the rack in the false-floor
Supports above the rack
Supports on the cables trays over the rack
Keep the slabs of the false-floor
The supports solutions will be validated during the Injectors TS3 in September 2016.
1 week is foreseen in the EYETS schedule for the stabilization.
15-Apr-2016
LIU Project activities for the EYETS Julie Coupard EN-ACE

9. Electrical Locking-out
IN WORK
15-Apr-2016
LIU Project activities for the EYETS Julie Coupard EN-ACE

10. Thank you for your attention

11. Efforts to gain weeks EN-EL Machine operation
+ contractors & support groups
Machine operation
Test AUG
Shrink part of HW test
Work on Xmas break & Saturdays
2016
2017
Aim: 12.5 weeks for PSB
Main issues to be solved:
EN-EL: Additional manpower for supervision needed (+ 1 person)
NB: supervision during regular days still to be covered
Contractors: additional manpower with B1/H1 habilitation (French law: 35 hours)
Support groups: RP, Transport, Fire brigade; CSA (SMB-DI); EN-ACE (t.b.c.)
Budget: cost increase (est. +10% for EN-EL contractor + other support groups)
Work in 3 shifts:
All the red bullets explode
We have lack not only of supervisory staff but also of CORE staff (impossible to carry on for EN-EL)
Support group and logistics over night (22h00-6h00) much more complicated (support groups also lack of manpower to follow)
Budget: cost increase for services +70% due to work over night
The efficiency during 3rd shift will be lower that 100% (70% espected) due to the “handing over” from different team between one shift and another (time spent at the end of the 1st shift and beginning of the second, loss of information among workers, etc.)
To note:
- The cabling review 2015 (L. Rossi) had requested more resources to be allocated to reinforce the cabling core staff. Those were never allocated.
27 May 2016
D. Ricci, G. Georgiev – De-Cabling Strategy, LS2-Comm.

12. EYETS 2016/17 – BE-OP Proposal
Reduce the HW test period from 4 weeks to 3 weeks
Risks:
Damage of operational cables during cable removal (higher risk than only disconnecting cables; affected systems cannot be known)
Potential delays in start date of beam commissioning
Mitigation:
Careful supervision during decabling+cabling campaign
Thorough preparation of HW test period by BE-OP
No risky EYETS interventions (HW + SW!) unless absolutely needed
Equipment groups have to respect installation schedule and guarantee SW readiness well ahead of the start of the HW commissioning period
IEFC 03/06/2016

13. PSB - Renovation ERD switchboards
To be done before EYETS
No co-activity possible with de-cabling
Advantage - Removal of all old electrical distribution components (cables, final power supplies) from false floor during the de-cabling campaign
ERD switchb. power OFF in PSB (B361)
Removal of ERD 16, 17,18 & associated cabling from BCER
TS3
Proton-Ion run
EYETS
31st Aug
New Supports & Switchboards
14th Nov - 12th Dec Cabling busbars to new switchb.
Power ON for new infrastructure 20th March 2017
Consequences if not done before EYETS16-17:
The Switchboard renovation will be moved to YETS17-18  less time for new cable pulling for LIU
The obsolete cabling and busbars will remain in the false floor  less space for new cables for LIU
Obsolete switchboard ERD 16, 17, 18 remain in service with no spares
03 June 2016
D. Ricci, G. Georgiev - Advancing de-cabling works - IEFC

14. Risks and mitigations Pulling cables on the overhead
14th Nov - 12th Dec Cabling busbars to new switchb.
Proton-Ion run
31st Aug
New Supports & Switchboards
TS3
Pulling cables on the overhead
cable trays  some risk of physical contact with racks:
Use of adapted procedures
Organise for additional CERN supervision
Work under the false floor during TS3
No cables present in the concerned zone
A few cables at the extremities will be protected
03 June 2016
D. Ricci, G. Georgiev - Advancing de-cabling works - IEFC