1/6 ALICE GLIMOS, Marc Tavlet Hazards and Safety in ALICE - Ways to reduce the risks Presentation at the ALICE Club, Monday, December 1 st, 2003 by Marc

1/6ALICE GLIMOS, Marc Tavlet

Hazards and Safety in ALICE -

Ways to reduce the risks

Presentation at the ALICE Club,Monday, December 1st, 2003

by Marc Tavlet, GLIMOS


Outline

Hazards and risks review (general)

Safety Procedures

Safety issues during design + Identified safety issues

Risks during - underground installation

- surface pre-installation

- commissioning

- operation

- maintenance

Ways to reduce these risks

Safety teams, responsibilities in matter of safety


Hazards and Risk review at CERN

Radiation ionizing and non-ionizing (lasers, EM-fields)

Electricity HV but also LV

(Flammable) gases, Chemicals (liquids), Materials (solids)to be considered both for toxicity and…

Fire risks (materials, electricity…)

Mechanical integrity (incl. seismic events, pressure vessels…)

Falls and slips, falling objects

Confined spaces

Handling (= transport, but also “hand-ling”)

Road traffic


Safety procedures

1. Initial Safety Discussions (ISD) ; Safety aspects have

been checked from the design.

2. The Glimos keeps ongoing contacts with PLs, and informs about safety rules (+ safety link-persons).

3. Safety issues, whenever appropriate, are addressed in

Production Readiness Reviews (PRR) (ongoing)

4. Final check when detectors arrive at CERN,

5. Safety Inspections with TIS.


Safety Issues during Design

Mechanical safety Structure integrity (including during seismic events) Pressure vessels, piping, Lifting and handling equipments

Flammable gases or mixtures

Electricity HV, proper protection LV power, fuses Grounding…

Non-complying materials with regard to IS-41 Risks of toxicity (Be)

Risk of fire (flammability, toxicity and corrosivity of fire gases)


Safety Issues during DesignResponsibilities and roles in matter of Safety

1. EP Division Leader ; give the resources

2. Technical Coordinator + GLIMOS ; inform + check

3. Project Leaders ; inform + check

4. Every designers ; respect the design rules, incl. all TIS rules

( TIS.CERN.CH/Documents )

They are all assisted by other safety officers (RSO, FGSO)

TIS specialists

+ safety link-persons


Risks during Surface Pre-Installation

Mechanical integrity (incl. Seismic events)beware of chocks !

Falling objects (from heights, scaffoldings, cranes…)secure portable tools and objects

define – and respect ! – safety perimeters

Falls (from heights) use harnessesdo not work on a ladder

Slips ← dust, grease, oil… on the ground


Road traffic


Risks during Underground Installation

Radiation light from lasers (+ calibration sources ?)define and respect safety perimeters

Mechanical integrity (incl. Seismic events)beware of chocks !

Be vacuum-chamber (toxicity) ; beware of chocks and scratches

Falling objects (from heights, scaffoldings, cranes…)secure portable tools and objectsdefine – and respect ! – safety perimeters


Risks during Underground InstallationCtd

Falls (from heights) use harnessesdo not work on a ladder

Slips ← dust, grease, oil… on the groundtidy the work place

Handling (= transport, but also “hand-ling”, manipulation)use individual protections

Confined spaces (inside the L3 magnet, between L3 and dipole…)attend the related training and respect the

rules

Noise


Risks during Commissioning

Radiation Light from lasers, EM-fields

Electricity HV but also LV ; use appropriate equipmentuse and respect signalizations

(Flammable) gases, Chemicals (liquids)


Mechanical integrity (beware of chocks !)

Falls (from heights) and slips (on the ground), falling objects


Confined spaces

Road traffic


Risks during Operation

→ During operation, the access to UX-25 will be forbidden

→ Access to the counting rooms in PX-24 allowed

→ Access to the ALICE control room trough SX-2

Fire risk (in UX-25 or PX-24) ; procedures will be written

Slips (on the ground), falling objects

Electricity (mains, 220V)

Night shift (never-work-alone rule)

Road traffic


Risks during Maintenance

About same risks as during commissioning:

Radiation Light from lasers, EM-fields + activation !

Electricity HV but also LV

(Flammable) gases, Chemicals (liquids)


Mechanical integrity (beware of chocks !)

Falls (from heights) and slips (on the ground), falling objects


Confined spaces

Road traffic


Ways to reduce the risks on the field

Proper information ← Supervisors, GLIMOS, TIS

Proper training ← TIS, GLIMOS, HR-ED

Adequate preparation of work

Presence of safety team

Respect the rules

Respect safety signs

… Safety culture

= “think safety, work safely”


Safety Team in ALICE

GLIMOS = Group Leader in Matter of Safety (and deputy) checks the design and co-ordinates all safety aspects. Disseminates and collects the info related to safety.

FGSO = Flammable Gas Safety Officer, checks the design and installation of (flammable) gas distribution.

RSO = Radiation Safety Officer, checks the safety related to ionizing and non-ionizing sources, including lasers.

TSO’s = Territorial Safety Officers (and deputy), check the daily safety aspects and installation at Pt-2 and in LHC.

Safety link-persons for each detectors.


Safety Organization Who reports to whom in matters of Safety

TSO Pt.2+ assistant

GLIMOS+ deputy

ALICE Tech. Coord. EP-DL + DSO

normal report, in case of definition of work major conflict

Safety CoordinatorFGSO, RSO

INB link-pers.

Safety link-pers.

EST-DL + DSO

Staff workerOutside contractor


Safety Organization Who’s who

GLIMOS Marc Tavlet /EP-AIO 73717

Deputy GLIMOS Hans Taureg /EP-AIO 16-0359 FGSO Charles (Ray) Gregory /EST-LEA 16-3504 RSO Marc Tavlet /EP-AIO 16-0217 TSO for Pt.2 Sebastien Evrard /EST-LEA 16-4821

Deputy TSO Fernando Dalla Santa /EST-LEA 16-3131

TSO for LHC Michel Decombaz /EST-IC 16-0430

INB link-person J-P.Vanuxem /EP-AIO 73890

Safety link-persons … thank you.