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process safety · fire protection

Warehouse fire protection event tree

A warehouse fire event tree starts with the fire and follows the performance of the safeguards intended to limit it. Detection raises the alarm, sprinklers can control the fire and the responding fire service can contain it. Each success or failure branch leads to a consequence such as minor damage, major damage or total loss. This form of analysis is useful when a property-risk team needs a clear view of why several independent protection layers matter. The probabilities belong to the initiating event and the barrier functions, while the outcome rows describe the resulting scenarios. Replace the illustrative values with values supported by inspection records, testing, reliability data and the fire strategy for the actual site.

النوع شجرة أحداثالمعيار IEC 62502:2010المحرّك schematex-eventtreeآخر تحديث 24‏/9‏/2026
Warehouse fire protection
Drawing preview
الطلب

“Create an event tree for a warehouse fire with fire detection alarms, sprinklers controlling the fire, and fire-service containment barriers, ending in minor damage, major damage, or total loss.”

جرّب إذنAdd a smoke-ventilation barrier after sprinklers.Change the sprinkler failure probability to 0.05.
ما الذي يتضمنه هذا الرسم

اقرأ القرارات الكامنة وراءه.

01Initiating event

Start with a warehouse fire frequency.

02Ordered barriers

Place detection, sprinklers and fire service in the order they affect escalation.

03Pruned paths

End paths once a failure makes later barriers irrelevant.

Use for an early consequence review of a fire-protection arrangement; calibrate probabilities with site data.

تصفّح جميع قوالب شجرة أحداث ←

الأسئلة الشائعة

أسئلة شائعة

What does an event tree show?

It shows how the success or failure of ordered barriers changes the outcomes after an initiating event.

Where do probabilities go in an event tree?

Give the initiating event a frequency and each barrier its failure probability; the diagram computes the path frequencies.

Why are some branches pruned?

A branch is pruned when an earlier outcome ends the scenario, so later barriers no longer affect it.