RBI

The Risk Based Inspection (RBI) is a plant investigation approach, referring to the API 580/581 Standards using the risk as a basis to define the plant inspection programme and identify the relevant action priorities.
Because, generally , a significant percentage of risk refers o a limited number of components, the RBI allows to concentrate the inspection and maintenance resources where the risk has been estimated higher, optimizing costs while guaranteeing a higher level of reliability.
The risk is featured by two main factors: the likelihood of failure (LOF) and the consequence of failure (COF). The approach provides three different level of analysis: qualitative, semi-quantitative ad quantitative, with of course different levels of result accuracy.
In order to obtain a reliable outcome, the input data are to be singled out and collected by an integrated team both from the plant and the inspection body personnel where all the necessary competencies (process, materials, welding,NDT,corrosion and safety) are represented at a adequate level of knowledge and experience. Then the input data are to be processed by an appropriate software (the Italian Institute of Welding operates with the American Petroleum Institute - API- software ver.3.3.3, with option to the ver.6) ,able to interface, through a proper kit, with the plat management software.
In addition to the plant management, the national and international involved Authorities as well as the Insurance Companies are recognizing the RBI as a fit tool to conduct the inspection and maintenance activities.
Fore more information about RBI services and IIS references and clients in this field, click here (PDF) .