B513 Planning Meeting, 21st March 2003
Present:
Tony Cass, Anne Funken, Jukka
Lindroos, Jose Miranda-Vizuete
1.
Previous Minutes
- Approved.
- 3.2: The next site committee is on May 14th. The
project must be presented to the site committee before the order is
placed, but the tender can be sent out before May 14th.
2.
Substation Planning
- A new cable layout has been developed
which routes cables vertically down from the transformers but then down
the walls to go under false floor, so equipment location is not restricted
by the cable routing. Concerns about water infiltration are addressed by
having a wall (rising up sufficiently to be covered by the transformer
housing) around the cable entry point under the transformers—which is
anyway small.
- Although the size and location of this
protecting wall can be defined for the 2MVA transformers, we still do not
have the precision dimensions of the 3MVA transformers. However, an
estimated size and location for the wall under the 3MVA transformers would
be enough at present.
- Anne would like to allow for the possibility
to support a 7th transformer just in case we do not use filters
to reduce harmonic distortion. Jose does not consider that this would be a
major reconfiguration if asked after the tender—now that the interior
walls are load bearing, the roof dalle is considered independent above each
room and so an extra opening for the additional cables could be added
easily.
1.
The schedule to the start of
construction at the beginning of September was sketched out as follows:
a.
CERN documents given to design
bureau by March 28th;
b.
final documents returned by
April 4th;
c.
ST “comité de lecture” (1.5
weeks notice) and specification meeting (1 week notice) until week ending May 2nd;
d.
tender issued during the week
beginning May 5th;
e.
adjudication by end-June;
- contract
negotiations during July.
- Work
to modify the HVAC piping in the corridor will start soon. Temporary
arrangements for the HVAC ducting will be required during bunker construction.
- Anne is still investigating options for
filters to reduce harmonics. These will go on in parallel with planning
for the upgrade of the machine room distribution.
3.
AOB
- Next meeting: 16:00,
Tuesday 8th April.