1. Booster LV Electrical Distribution: Schedule and Quantities Aims: Modernisation of Booster electrical infrastucture To install necessary infrastructure for transparent change-over of cabling Minimise impact on other work planned for the Booster (esp. cable removal campaign) Remove power cabling from false floor for easier installation + operation Phasing: Phase 1 – New containment installation + Switchboards - YETS 2015 Phase 2 – Cable & Busbar installation - >YETS 2015 (During run) Phase 3 – Change over - EYETS 2016? TBA with users Phase 4 – Cable removal – following change over, EYETS? Quantities for removal: 33 Cables to be removed (identified so far, however final number will be >> as no cablotheque exists for the majority) >1.6KM total cable length to be removed (identified so far) Quantities for installation: BRF2 new rack zone – Additional ~100m containment to install, notional duration 2 weeks Refurbishment BCER zone – Additional ~400m containment to install, notional duration 3 weeks Additional holes to be drilled for replacement of electrical supplies to distribution switchboards

2. Booster: LV Electrical Distribution Overview Power Converters RF General Services ESD Machine Racks General Services CV General Services Bat. 245 POPS-B Final circuit distribution within Bldg. 361 to be consolidated

3. Booster LV Electrical Distribution: Before & After inside Bldg. 361 Racks Structural Slab Existing service zone – Old cables + Power distribution No Access Before Racks Structural Slab Service zone dedicated for Control, DC cables and pipework After Electrical containment zone Racks supplies from above

4. Booster LV Electrical Distribution: Photos Front Typical configuration: New Fluorescent Lighting 2x300mm Cable trays (EL+CF) 1x100A Canalis Structure supported on racks (allowing for individual rack removal) or ceiling, to be determined. Similar systems used in Linac4 and CCC. Zone for EL installation False floor available for Control + DC cables