The Preliminary Hazard Analysis (PHA) consist in identify, at a system level, which redundant events that can lead to dangerous situations for people. These events are then classified by assigning a level of safety.
The Preliminary Hazard Analysis
Risk control and dependability
As part of a PEE(Programable / Electrical / Electronics), the analysis of dependability of a system must fit into a risk management overall.
The Electrical/Electronic System Reliability
Reliability definition
The most current reliability definition is, the (probability of) capability of an entity to perform a required function, in a defined environment and during a defined period of time. Continue reading »
Does the SIL systems exist?
The term « system SIL » is a term used frequently, but very often leads to confusion. In fact, if one takes the meaning of the abbreviation SIL, we get Safety Integrity Level. The safety integrity is the probability for a safety related system to execute, in a satisfactory manner, the safety related functions required in all the specified conditions.
The formal methods in the Operational Safety process
The formal methods :
Allow to define mathematically and rigorously the properties of operation of a system. Formal methods may apply to any stage of development of a project, as well from the specification phase to the phase of implementation. Continue reading »
The IEC Standard and its derivatives
The IEC 61508 standard is a generic standard, created in European version by CENELEC in 2002 as EN 61508, and todayis used as reference by all major industrial sectors.
Since its creation, several derivatives of this standard (called child standards) were created. Each time, these child standards have been established with the objective of making applicable the EN 61508 for different sectors.
These child standards are the following :
Lambda Mu16 – The New Challenges of Risk Control
Two years after the Lambda Mu 15, the Institute for risk control (LMdR) has organized the sixteenth edition of its famous congress, and has proposed the theme of “New Challenges” which were covered by industrial, investors, engineers, consultants, and specialists whom exposed to the problem of risk Control and Operational Safety.
ClearSy as a recognized actor in the realisation and the study of operational safety systems must be kept informed and learn the what are the new challenges for the next century.
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