Build A Bowtie For Transformer Fire Risk

An aging substation transformer has repeated oil temperature alarms and sits near vegetation. The team needs a shared view of fire risk controls before the summer peak. Bowtie: hazard, top event, threats, preventive barriers, consequences, recovery barriers, escalation factors The common trap is listing controls generically without linking them to a threat, consequence, owner, or degradation mode. Hazard and top event Name the hazardous asset and the loss-of-control moment: energized oil-filled transformer -> transformer fire or uncontrolled oil release. The top event is not the consequence. It is the point where control is lost and consequences become possible. Threats List…

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