1. Each converter 3 racks (fighting for 2?) Access from front and rear of each rack! 56 racks total + 6 racks Ethernet/control Existing RF equipment to be moved; renovation/re-installation of RF equipment coordinated with TE-EPC to optimally re-configure the space (option 2) Power distribution/switchgears to be renovated (RF) and extended (strip foil) Water cooling needs. (EN-CV need to know the power distribution for ventilation and cooling. To ease the load on the existing ventilation, distributing the racks in different rooms is the preferred solution). False floor to be modified/reinforced Item #ObjectivewhoBy date 1Confirm that 50 ppm 40 kHz current ripple acceptableTE/ABTNow 2Cable length between pulse transformers and magnetEN/EL21 st Nov. 3Cable distance and path for BSW1 DCCTs (current measurement)EN/EL21 st Nov. 4Dimensions of identified zone for pulse transformersEN/EL – EN/MEF28 th Nov. 5Define the interfaces, type and number of cables, for magnet interlock. Actions with TE/EPC - TE/ABT5 th Dec. 6Define timing management solutions.TE/EPC – BE/OP12 th Dec. 7Define BIS current tolerance for safe operation in the PSB and HST.BE/ABP - BE/OP12 th Dec. 8BRF2 global integration studies considering RF renovation + HST global integration study TE/EPC - BE/RF EN/MEF – EN/EL Early 2015 9Water distribution needs and workTE/EPC – EN/CVEarly 2015 Major actions to finalize functional spec. and finalize design / start purchasing Source Davide Aguglia (TE-EPC), Nov. 13 th 2014  Evaluate & optimise work that can be done in advance of LS2 during YETS 2015/2016?  Stakeholders to please carefully consider both options and the eventual impact either could have on your systems/services.

2. Option 1 NB… missing 6 racks Ethernet & interlocks

3. Possible only if the four RF cabinets are displaced. 2. BRF2/BAT racks integration Option 2 Identified: zone for BSW2, 3, & 4 pulse transformers

4. Possible only if the four RF cabinets are displaced. Option 1 Option 2 Linac4 connection to PSB in principal possible starting end 2016 Source A. Kosmicki & G. Georgiev

5. Length of the YETS 2015-2016 / EYETS 2016-2017 Length of the technical stops in the LHC, SPS, PS and PSB The length of the (E)YETS cannot be reduced. This is the reference to define and organize the works during the (E)YETS in order to reduce the workload for LS2, in particular in the PSB. 22 January 2015 Source J. Coupard, EN-MEF

6. Source PSB-LIU Machine. Preparations for the installation of the stripping foil power converters in BRF2 & BAT (Ref slide Georgi). Site preparations for the BSW 1L1 transformers close to the magnets (PSB injection region)… EN-MEF-SU (survey): Test oil injection jacks for the magnet alignment & tooling. Install magnet stack KSW16L1 and modify the vacuum chamber. Surface. New MPS (POPS-B), installation of the 4*18kV switchgear in M25. BCER: Removal of the obsolete BI.DIS infrastructure, prepare rack space. EN-EL consolidation works. Replace ERD16,17 & 18. BI.BVT`s, Install 4 new racks in the BHP. Install 16 additional power converters racks 258A and 258B BCER orbit correctors. Machine/Surface. Decabling campaign EN-EL. Activities to be scheduled YETS 2015/16 (as of date 16/04/2015)