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Safety Course |
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Safety is the state of being "safe" (from French
sauf), the condition of being protected against
physical, social, spiritual, financial, political,
emotional, occupational, psychological, educational
or other types or consequences of failure, damage,
error, accidents, harm or any other event which
could be considered non-desirable. This can take the
form of being protected from the event or from
exposure to something that causes health or
economical losses. It can include protection of
people or of possessions.
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Course
1- Types of
safety |
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It is important to distinguish between products
that meet standards, that are safe, and those that
merely feel safe. The highway safety community
uses these terms:
Normative safety
Normative safety is a term used to describe
products or designs that meet applicable design
standards.
Substantive safety
Substantive safety means that the real-world
safety history is favorable, whether or not
standards are met.
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Course 2-
Risks and responses |
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Safety is
generally interpreted as implying a real and
significant impact on risk of death, injury or
damage to property. In response to perceived
risks many interventions may be proposed with
engineering responses and regulation being two
of the most common.
Probably the most common individual response to
perceived safety issues is insurance, which
compensates for or provides restitution in the
case of damage or loss.
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Course 3-
System safety and
reliability engineering |
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System safety and
reliability engineering is an engineering
discipline. Continuous changes in technology,
environmental regulation and public safety
concerns make the analysis of complex
safety-critical systems more and more demanding.
A common fallacy, for example among electrical
engineers regarding structure power systems, is
that safety issues can be readily deduced. In
fact, safety issues have been discovered one by
one, over more than a century in the case
mentioned, in the work of many thousands of
practitioners, and cannot be deduced by a single
individual over a few decades. A knowledge of
the literature, the standards and custom in a
field is a critical part of safety engineering.
A combination of theory and track record of
practices is involved, and track record
indicates some of the areas of theory that are
relevant. (In the USA, persons with a state
license in Professional Engineering in
Electrical Engineering are expected to be
competent in this regard, the foregoing
notwithstanding, but most electrical engineers
have no need of the license for their work.)
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Course 4-
Safety measures |
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Safety
measures are activities and precautions taken to
improve safety, i.e. reduce risk related to human
health. Common safety measures include:
* Visual examination for dangerous situations such as
emergency exits blocked because they are being used as
storage areas.
* Visual examination for flaws such as cracks,
peeling, loose connections.
* Chemical analysis
* X-ray analysis to see inside a sealed object such as
a weld, a cement wall or an airplane outer skin.
* Destructive testing of samples
* Stress testing subjects a person or product to
stresses in excess of those the person or product is
designed to handle, to determining the "breaking
point".
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Course 5-
Standards organizations |
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A number
of standards organizations exist that promulgate
safety standards. These may be voluntary organizations
or government agencies.
American
National Standards Institute
A major American standards organization is the
American National Standards Institute (ANSI). Usually,
members of a particular industry will voluntarily form
a committee to study safety issues and propose
standards. Those standards are then recommended to
ANSI, which reviews and adopts them. Many government
regulations require that products sold or used must
comply with a particular ANSI standard.
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