Cable Working Group update - CERN

Cable Working Group update
S. Baird (on behalf of the CWG team)
IEFC 30 th October 2009

• Mandate
• Members
• Strategy
• Where are we?
• What next?
• Other information
CWG

Mandate
• Identify cables installed in the accelerators
– their existing ownership
– propose owners for the orphan cables, with the
required resources.
• Define a coherent CERN-wide policy for the definition,
installation, maintenance and removal of all cables in the
Accelerator tunnels and associated buildings.
• The Group will report to the A&T Sector management.
• CWG members
• Full mandate

Strategy
1. Information survey to collect basic information from all Groups
2. Agree on the definition of a cable owner
3. Use points 1 & 2 to identify, where possible, the cable owners.
4. For all “orphan cables” agree on, or propose, a cable owner.
5. Examine existing documentation in order to make
recommendations concerning the centralisation of cabling
documentation and, in particular, cable layouts.
6. With recommendations from 5 define a strategy for the installation,
replacement and removal of cables (In collaboration with the
Working Group on the “Replacement of Irradiated and Ageing
Cables”)

Where are we?
1. Information survey to collect basic information from all Groups
2. Agree on the definition of a cable owner
3. Use points 1 & 2 to identify, where possible, the cable owners.
4. For all “orphan cables” agree on, or propose, a cable owner.
5. Examine existing documentation in order to make
recommendations concerning the centralisation of cabling
documentation and, in particular, cable layouts.
6. With recommendations from 5 define a strategy for the installation,
replacement and removal of cables (In collaboration with the
Working Group on the “Replacement of Irradiated and Ageing
Cables”)

Where are we?
1. Information survey to collect basic information from all Groups
2. Agree on the definition of a cable owner
3. Use points 1 & 2 to identify, where possible, the cable owners.
4. For all “orphan cables” agree on, or propose, a cable owner.
5. Examine existing documentation in order to make
recommendations concerning the centralisation of cabling
documentation and, in particular, cable layouts.
6. With recommendations from 5 define a strategy for the installation,
replacement and removal of cables (In collaboration with the
Working Group on the “Replacement of Irradiated and Ageing
Cables”)

Information survey
• Most cables (>20m) are specified by Groups
– Exceptions; DC power cables for magnets & some common
signal and fibre optic cables between SPS BA’s
• Installed and documented by EN/EL.
– Exceptions; TE/CRG, GS/ASE and RP (external contractors)
• Many Groups also keep their own documentation,
– additional information complement to EL database
• There is no policy for removal of old, unused, obsolete
cables… so they are left in place
– Removal occurs in a few cases (TE/ABT, dedicated cable
replacement campaigns in SPS…)

Where are we?
1. Information survey to collect basic information from all Groups
2. Agree on the definition of a cable owner
3. Use points 1 & 2 to identify, where possible, the cable owners.
4. For all “orphan cables” agree on, or propose, a cable owner.
5. Examine existing documentation in order to make
recommendations concerning the centralisation of cabling
documentation and, in particular, cable layouts.
6. With recommendations from 5 define a strategy for the installation,
replacement and removal of cables (In collaboration with the
Working Group on the “Replacement of Irradiated and Ageing
Cables”)
The Cable Owner is the Group who requests and specifies the cable
installation.

Where are we?
1. Information survey to collect basic information from all Groups
2. Agree on the definition of a cable owner
3. Use points 1 & 2 to identify, where possible, the cable owners.
4. For all “orphan cables” agree on, or propose, a cable owner.
5. Examine existing documentation in order to make
recommendations concerning the centralisation of cabling
documentation and, in particular, cable layouts.
6. With recommendations from 5 define a strategy for the installation,
replacement and removal of cables (In collaboration with the
Working Group on the “Replacement of Irradiated and Ageing
Cables”)

Where are we?
1. Information survey to collect basic information from all Groups
2. Agree on the definition of a cable owner
3. Use points 1 & 2 to identify, where possible, the cable owners.
4. For all “orphan cables” agree on, or propose, a cable owner.
5. Examine existing documentation in order to make
recommendations concerning the centralisation of cabling
documentation and, in particular, cable layouts.
6. With recommendations from 5 define a strategy for the installation,
replacement and removal of cables (In collaboration with the
Working Group on the “Replacement of Irradiated and Ageing
Cables”)
Orphans; DC cables, + fibre optic & some cables between SPS BA’s…

What next?
1. Information survey to collect basic information from all Groups
2. Agree on the definition of a cable owner
3. Use points 1 & 2 to identify, where possible, the cable owners.
4. For all “orphan cables” agree on, or propose, a cable owner.
5. Examine existing documentation in order to make
recommendations concerning the centralisation of cabling
documentation and, in particular, cable layouts.
6. With recommendations from 5 define a strategy for the
installation, replacement and removal of cables (In collaboration
with the Working Group on the “Replacement of Irradiated and
Ageing Cables”)
Next meeting: How best can we use/expand the EL “Cablotheque”?

1958 Plans, Listes
manuscrites
t
PS SPS LEP/LHC
1970 Cartes perforées
1983
1989
1993
Responsabilités du câblage de EN-EL
Slide from JC Guillaume
Bases de Données
ORACLE
Bases de Données
ORACLE
Rappel: Historique câblothèque
Bases de Données
ORACLE
Même contrat, mêmes outils, mêmes méthodes
07-10-09 12

Responsabilités du câblage de EN-EL
Slide from JC Guillaume
Site LHC:
Tous les câbles sont
documentés en BD selon
méthodologie EN-EL-CF
Systèmes
obsolètes ?
A identifier
Câbles installés
par EN-EL
Site SPS:
Tous les câbles sont
documentés en BD selon
méthodologie EN-EL-CF.
CABLES CERN
Site Meyrin:
Depuis 89, tous les câbles
sont documentés en BD selon
méthodologie EN-EL-CF.
Avant 89, les câbles sont
documentés sur fiches.
CWG/JCG
Systèmes identifiés et non identifiés
Câbles non
installés
par EN-EL
Câbles
documentés
en câblothéque
- Câbles expériences
- Câbles installés par
des contrats non EN-EL:
Ex: Petites longueurs,
Installations clé en main,
Services non liés au faisceau.
Câbles
non documentés
en câblothèque
A numéroter
et à documenter
Câbles enlevés ?
Systèmes
obsolètes ?
A identifier

What next?
1. Information survey to collect basic information from all Groups
2. Agree on the definition of a cable owner
3. Use points 1 & 2 to identify, where possible, the cable owners.
4. For all “orphan cables” agree on, or propose, a cable owner.
5. Examine existing documentation in order to make
recommendations concerning the centralisation of cabling
documentation and, in particular, cable layouts.
6. With recommendations from 5 define a strategy for the
installation, replacement and removal of cables (In collaboration
with the Working Group on the “Replacement of Irradiated and
Ageing Cables”)
This is where we will deal with obsolete cables for obsolete or nonexistent
equipment

Other information
• http://en-dep.web.cern.ch/endep/Groups/MEF/SWGroups/cable_wg.htm