Building a New Electric World

Dependability allows you to determine, evaluate, measure and above all master potential failures of complex systems. Thus correct operation is ensured, over time, throughout its life cycle and at the least cost.

Dependability

Ensure over time system reliability, availability and safety

Causes of system failures(source: Health & Safety Executive)

Operation andmaintenance

1 5%

Modifications

21 %

Installation and commissioning

6 %

Design and manufacture

1 5%Specifications

43 %

The aim dependability is to ensure that the system’s functions are maintained throughout its life cycle and at the least cost (human, financial, environmental, ...). Maintainability, availability and reliability of products and systems determine operating performance and influence customer satisfaction.Quality and dependability also implies taking into account the company’s human, technical and organisational factors.

Some dependability criteria: b MTTF: mean time to first failureb MTBF: mean time between failuresb MTTR: mean time to repairb λ: failure rateb A(t): availabilityb SIL: safety integrity level.

Ensure over time system reliability, availability and safety

You are looking for a partner to:

b evaluate, warn of and limit risks,

b make installations durable and optimise operating costs,

b guarantee safety,

b train your teams or partners.

Dependability

A global, structured and participative approach

Evaluate, warn of and limit risksb Analysis of installation risks (identify the dangers and evaluate the effects of the consequences)b Assistance in defining dependability (reliability, availability) and safety goalsb Assistance in developing technical and functional specificationsb Integration of regulatory and standards’ requirementsb Analysis and comparison of technical solutions.

Make installations durable and optimise operating costsb Installation failure analysisb Making reliable of electrical installationsb Installation auditb Field data experimentb Comparison between potential solutionsb Maintainability analysis.

Guarantee safetyb Evaluation and determination of safety levels (SIL)b Support and presentation of a safety dossier to a commissionb Functional safety studiesb IEC 61508 implementation in your safety projects.

Train your teams or partnersb Setting up dependability approachb Setting up safety approach.

Implement suitable methods

b Preliminary risk analysisb Functional analysisb Failure Modes, their Effects and their Criticality Analysis (FMECA)b Failure treesb Markov graphsb Petri netsb …

Activity sectors

b Healthcare buildingsb Defence - Militaryb Transportb Automotiveb Computing (Data Center, servers,…)b Hazardous processes (Petrochemical, nuclear,…)b Waterb …

Schneider Electric, 30 years’ experience

Schneider Electric has been carrying out dependability studies on systems for over 30 years:b electrical distribution,b process automation,b command and control,b safety systems.Dependability studies can be performed before or during the operating phase.

Dependability

Postal address:Projects & Engineering CenterF-38050 Grenoble Cedex 9Tel.: 33 (0)4 76 57 60 60

http://www.schneider-electric.com

As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication.

Design and production: Schneider Electric, GraphèmePhotos: Schneider Electric, ScorpiusPrinting: Numérica

Schneider Electric France

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Some references

b PSA Peugeot Citroën (Automotive)b CERN (Nuclear)b Condat Paper Mill (Industrial process)b IBM (Computing)b STMicroelectronics (Microelectronics)b DCN (Military shipbuilding)b DGA (Military constructions)b Swedish Navy (Military)b SNCF (Railway industry)b CNIM (Military constructions)b MGE-UPS (Computing)b AREA (Motorway)b ELYO (Computing)b EDF (Nuclear, Electrical energy)b GDF (Gas storage)b Vivendi (Water)b SAGEP (Water)b Cap Gemini (Computing)b ELF (Petrochemical)b France Telecom (Telecom)b Danzas (Transport)b TDF (Television)b CHU Saint-Etienne (Health)b Shell (Petrochemical)b Dalkia (Energy)

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