Risk Based Inspection (RBI)
The key outcome of any RBI scheme is a prioritised and focused inspection schedule
This ensures high risk items get correct scrutiny and produces a safety focused and cost effective inspection scheme.
RBI is now recognised as a key tool in meeting legislative requirements, as detailed in the HSE's best practice guidelines
Using RBI Programme, Risk is reduced to a greater degree than at the same cost using a Typical Inspection Programme
Using a RBI Scheme a piece of equipment is given a Risk rating based on failure Probability versus Consequence.
RBI Scheme helps avoid over-inspection of low risk equipment and puts focus on equipment that has High Probability and High Risk of failure
Implementation process - Vessels
Extract historical wall thickness data
Review data - estimate corrosion rates and minimum wall thickness
Rank vessels according to susceptibility/remnant life
Define inspection requirements
Define repair/replacement requirements
Carry out inspection to requirements