Case Study

Development of a Spreadsheet Tool for ALARP Assessment and Cost Benefit Analysis of Boiler Tube Inspections

Development of a Spreadsheet Tool for ALARP Assessment and Cost Benefit Analysis of Boiler Tube Inspections

Risk Assessment Consultancy Client: E.ON Following a cold formed bend (CFB) boiler failure which led to a high pressure steam release at UK’s Ratclie Power Station in 2006, the UK Health and Safety Executive required that a minimum of 25% of cold formed bends should be inspected at all coal red power stations. However, this policy did not take into account the variations in design and operating experience between power stations and could potentially lead to widely diering inspection costs as well as dierences in probabilities of CFB failure. In 2013 GENSIP 1 sought to explore the impact of inspection costs and CFB failure probabilities by funding a project to develop a tool for the CFB ALARP Assessment and Cost Benet Analysis in accordance with GENSIP Good Practice Guidance. Egerton

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