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Alarm Rationalisation
Easy configuration of tags in the DCS has removed the incentive
to limit the number of alarms presented to operators, who are now faced with
more alarm information than they can effectively monitor. Nuisance alarms,
standing alarms, or alarms that are quite simply unnecessary are all likely
consequences.
Regulatory bodies such as the HSE in the UK and OSHA in the USA
are becoming increasingly aware of the significance of effective alarm systems,
especially following a number of high-profile safety incidents in recent years
where the alarm systems have been implicated. Without effective alarm
management you cannot be certain that your operators will respond correctly
when there is a plant upset.
The Benchmark Phase: Where Are We Now?
A short, focused study particularly appropriate to existing alarm
installations. The study will assess both the alarm system and the operational
environment against recognised good practice such as EEMUA 191 and will deliver
a written report that quickly establishes the current position with respect to:
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Maturity of alarm handling practice, procedure and culture.
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Assessment against the recommendations in EEMUA 191, highlighting both the
areas of good practice and the areas for improvement.
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Recommendations for action, including both the priorities and the ‘quick wins’.
The Plan Phase: What Are We Going To Do?
Working with our partners we have an established set of tools and techniques
for reviewing alarm management needs and priorities. These are equally
appropriate for working with the results of a benchmark study or an internal
client-sponsored review. We help to establish a clear plan of action covering
scope, budget and timescales that will deliver a set of goals that are both
realistic and will deliver maximum benefit.
The Implementation Phase: Delivering the Benefit
We are uniquely placed to deliver an agreed plan of action. Our consultants and
engineers have a practical understanding of the special issues found in
advanced control and instrumentation projects and we cover the full
implementation phase from detailed design and definition, vendor selection and
project management through to commissioning.
Because our service is based on a life cycle approach it is not
tied to a specific technology or vendor, meaning that throughout we are geared
towards ‘delivering the right system’ and ‘delivering the system right’.
The Review Phase: Holding the Gains
This is a periodic assessment of the operational alarm system, post change,
against defined success criteria to verify that,
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Planned improvements have been achieved
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Benefit gains are being held.
It is normally better to approach an alarm improvement
initiative using an iterative approach rather than attempting a ‘big bang’
change. This assessment is invaluable for re-assessing priorities for future
projects, thereby driving the cycle of improvement forward.
Combining ICS products and services mean that effective alarm management can
now be achieved with minimal effort for maximum effect.
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Initial “benchmarking” of alarm system performance and compliance with the
recommended standards.
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Reduction of standing alarms.
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Definition of rules for alarm prioritization.
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Provision of onsite training for operators and engineers in alarm management.
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Development of an ongoing alarm management procedure backed up by measurement
of key performance indicators.
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