B513 Planning Meeting, 14th January 2005

Present:           Tony Cass, Serge Deleval, Anne Funken, Jose Miranda-Vizuete, Tim Whibley

1.             Previous Minutes

  1. Approved with minor corrections.

2.             Substation Status

  1. ABB will be at CERN on January 18th/19th to review the neutral distribution in the switchboards. If this is possible there is likely to be a delay of about two months in the commissioning. This is probably acceptable as there is only an impact on IT services, not on wotk at the 18kV level nor on hvac equipment.
  2. The “critical” UPS is scheduled for delivery on March 18th.
  3. The transformers will be powered and tested at the end of January but the final configuration (and noise…) will not be before end-February.
  4. The steam evacuation pipe will be removed from the substation to provide an additional route out of the substation for cables. A temporary solution will be required for steam evacuation during the UPS tests in April (the last tine the steam generators are required as a temporary load). Jose will ask for a devis to cover the “chimney”. It was noted that this work needs to be scheduled carefully to avoid interfering with cabling work.
  5. Serge & Jose will review the cablofil installed outside the bunker by the hvac company to be sure that the waterproofing has not been affected.
  6. Installation of smoke detection is planned with the work scheduled after the major cabling installation. Serge will discuss the resons for grouping the desenfumage (one signal covering all 3 rooms rather than 3 separate signals) with Denis Raffourt.
  7. The electrical equipment for the air conditioning arrives January 17th—all expected to be in a working state by the end of January.
  8. Given the underfloor layout of the safe room, the installation of rigid ducts for the air conditioning would be extremely complex; Serge therefore proposes to use flexible ducting. Anne was somewhat concerned that these could be too easily damaged during installation and maintenance work on the electrical equipment. Serge commented that the ducts would be installed as late as possible but it was agreed to consider the placement carefully to minimise the risk of damage.

3.             Machine Room Status

  1. Anne is looking at the routing for the PDU cables. These must avoid the hvac ducts and must also be appropriately positioned to allow easy access to the normabarres given the planned rack layout.
  2. It was agreed to place the  “cleaners” sockets by the doors to the operators corridor and to the barn.
  3. Most of the holes in the floor have now been blocked—and the exceptions are mostly left at Marcel’s request.
  4. The normabarre installation work is almostcomplete with only a little work still required in the critical equipment area.

4.             HVAC Status

  1. The duct installation along the  operarors corridor and  archive store will be complete by January 20th. Installation of the ducts against the Salève side wall is starting. The contractors are aware of the need to protect the network equipment in this area.
  2. Serge commented that the planned location of some of the Salève side ducts are blocked by cables. He will contact Marcel Lasne to see if the cables can be moved.
  3. Ducts with a total cross section of 2m2 are needed to connect the ducts under the barn wall to the cold air plenum. As it is not evident how to to route the connecting ducts in a way that is compatible with the proposed renovation, installation work will be postponed until September.
  4. Apparently the temperature sensors in the vault are connected to a PLC. Serge will let Tony have the plc name and the register layout information so that he can extract the temperature information.
  5. For the ground floor machine room, sensor installation, configuration and plc connection details are all part of the proposed future development. In the meanwhile Serge believed that it would be possible to supply portable sensors to monitor air temperature at strategic points.

5.             AOB

  1. As M. Treleani left Tremblet at end of 2004 Jose is discussing ways to maintain his involvement with the barn upgrade project and, in particular, for the planing of foundation reinforcements.
  2. Tony commented that the metal arc planned to protect the exposed corner of the bunker has never bee installed. It was agreed that this does not seem necessary now.
  3. Next meeting: 2pm, Friday Febrary 4th.