NCOE
INDUSTRY GUIDELINES NCOE uses key industry standard references for determining the Safety Integrity Level (SIL) specification. Our analysis of electrical power distribution networks include guidelines from...
NCOE has more than 10 years experience in this field. In the last few years we have increasingly used the methodology on volatile hydrocarbon systems but also on electrical power networks. This is mainly because of the increased use of microprocessor controlled systems, such as power surge protection and short circuit protection systems.
INTERNATIONAL STANDARD Since the 1990’s IEC61508 - Functional Safety of electrical/electronic/ programmable electric safety related systems has become an international standard, since its emergence this has been combined with hazard and operability investigative studies to become the driving force for the analysis and consequential improvement in system reliability and availability of the dynamic active systems.
• IEEE - Guidelines 493-2007 • Energy Institute, London - Guidance on Assessing SIL of Electrical Supply Protection.
These guidelines refer to the risk associated with safety of people and this has always been at the forefront of engineering oil & gas processes and structures. Alongside this, and just as important are environmental risks and commercial risks. This must also become the case for wind farm systems.
FUNCTIONAL SAFETY – LIFE CYCLE PROOF TESTING The life cycle maintenance and management concept is raised in IEC61508 and is a further feature of Functional Safety. NCOE build these aspects into the design completion, implementation and commissioning process. This requires a register that details all safety critical items which must be maintained during their lifecycle.
Safety issues and mitigating against risk has to be considered very seriously at all times. This should always be included as an activity during any FEED or detailed engineering phase of a project and during the whole life cycle of a plant or installation.
The NCOE consultancy group manages all aspects of hazard and safety analysis when project managing and engineering new and modified systems.
Newcastle Chambers of Engineering
www.ncoe.co.uk
e = See enhanced entry online
www.windenergynetwork.co.uk 59
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