Barrier analysis

download

Barrier analysis (BA) is an analysis technique for identifying hazards specifically
associated with hazardous energy sources. BA provides a tool to evaluate the
unwanted flow of (hazardous) energy to targets (personnel or equipment) through
the evaluation of barriers preventing the hazardous energy flow

Barrier analysis is a powerful and efficient system safety analysis tool for the discovery
of hazards associated with energy sources. The sequentially structured procedures
of BA produce consistent, logically reasoned, and less subjective judgments
about hazards and controls than many other analysis methods available. However,
BA is not comprehensive enough to serve as the sole hazard analysis of a system,
as it may miss critical human errors or hardware failures not directly associated
with energy sources