East Hall under construction 1962 East Area Renovation

East Hall under construction - 1962 East Area Renovation News Project team meeting #40, 13. 11. 2020 S. EVRARD (EN-EA), on behalf of the project team

Contents • Budget situation • B. 251 renovation and HVAC • Design of the T 11 beam entry • Concrete beams (Primary shielding) • Handling of Electrical non-conformities • Mini CSR 4 • Arrivals/Departures S. Evrard PT meeting #40 2

Budget situation on November 1 st Since last month: Revenues: +40 k Charges: +550 k Commitments: +160 k Last big orders: Concrete beams (177 k) To come next week: B. 157 cabling campaign (400 -500 k) Courtesy of E. Delachenal S. Evrard PT meeting #40 3

B. 251 renovation and HVAC • Visit of B. 251 with SMB (Vincent Ricodeau) • Fibrocement to be replaced by sandwich panels in the framework of the asbestos SMB program • Thermal insulation improvement • New Windows • Check roof status • IT-4654 - HVAC System for Building 251 • DR launched • Tech spec ready and reviewed by Tech Spec committee (2301563 v. 1. 3) • Target for FC in March 2021 • Work in 2 nd semester of 2021 S. Evrard PT meeting #40 Courtesy of M- Lazzaroni 4

Design of the T 11 beam entry • • To minimize background for the Cloud experiment (muons) the beam passage hole through the mixed area shielding should be enlarged compared to the current layout version Consequences on radiation levels, access matrix & integration Need for a mobile shutter Dedicated meeting next week Courtesy of D. Brethoux S. Evrard PT meeting #40 5

Concrete beams (Primary shielding) • First batch of 26 beams for covering the Primary area • First Mould ready and second one under production (Visit to supplier) • Second check before 1 st casting, needs support from survey Courtesy of D. Brethoux S. Evrard PT meeting #40 6

Handling of Electrical non-conformities Non-conformités traitées Tableaux EBD 3*EH, EBD 14*EH, ESD 11*EH (tableaux type 3 pour services généraux étage 0 et éclairage étage 3) Tableau EBD 2*EH (tableau type 2 pour services généraux étage 0) Démontage appareillage non conforme (tableaux étage 3, coffrets prises 75 A, coffrets prises EU non conformes) Câbles résistants au feu 90’ Eclairage émergence d’ambiance hall Eclairage de balisage hall 157 et hall 251 AUG étage 3 au 157 Coffrets des prises non conformes existantes remplaces avec coffrets conformes Câbles pour remplacer les alim. des coffrets sur prises 75 A côté sud hall 157 Nettoyage transformateurs fosses à ME 11 Démontage tableaux type 4 à ME 22 Removal of DC, Signal and LV cables in B. 263 • Tens of electrical NCs solved by the renovation project • Financial support to come from HSE • Fruitful collaboration of EN-EL, HSE and project • Reports to HSE-MB and ENTM soon S. Evrard Courtesy of G. Velasquez PT meeting #40 7

Mini CSR 4 Rationales for a mini-CSR 4 in February 2021 • Schedule is affected by the COVID-19 pandemic • Better view on second wave consequences on EAR but also injectors and LHC • Better view on worksite progress • Cost • Return of several IT/PE • IT-4654 - HVAC System for Building 251 • SMB cost estimate and strategy for B. 251 (IPP or SMB-CONS) • PE for Control rooms • PE for 2 nd batch of concrete beams • Services still needed in 2021 (Survey, transport, RP, …) • A half-day mini CSR 2 will take place in February 2021 S. Evrard PT meeting #40 8

Arrivals/Departures • DEPARTURES • Christophe Brouard (SMB-SE) • Leszek Borakiewicz (IT-CS) • ARRIVALS • Jose Ramon Rendon Molina (IT-CS) • Camille Vendeuvre (EN-SMM) • Antonio Alonso (EN-EA) S. Evrard PT meeting #40 9

Thank you ! S. Evrard PT meeting #40 10