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<?xml version="1.0"?>
<opsa-mef>
<define-fault-tree name="HIPPS">
<define-gate name="top">
<or>
<gate name="SensorFailure"/>
<basic-event name="LogicSolverFailure"/>
<gate name="W1NotIsolated"/>
<gate name="W2NotIsolated"/>
</or>
</define-gate>
<define-gate name="SensorFailure">
<or>
<basic-event name="PSHCCF"/>
<gate name="PSHFailure"/>
</or>
</define-gate>
<define-gate name="PSHFailure">
<atleast min="2">
<basic-event name="PSH1Failure"/>
<basic-event name="PSH2Failure"/>
<basic-event name="PSH3Failure"/>
</atleast>
</define-gate>
<define-gate name="W1NotIsolated">
<or>
<basic-event name="SV1Failure"/>
<basic-event name="SDV1Failure"/>
</or>
</define-gate>
<define-gate name="W2NotIsolated">
<or>
<basic-event name="SV2Failure"/>
<basic-event name="SDV2Failure"/>
</or>
</define-gate>
<define-basic-event name="LogicSolverFailure">
<GLM>
<float value="0"/>
<float value="1e-006"/>
<float value="0.1"/>
<system-mission-time/>
</GLM>
</define-basic-event>
<define-basic-event name="PSH1Failure">
<periodic-test>
<float value="7e-007"/>
<float value="720"/>
<float value="0"/>
<system-mission-time/>
</periodic-test>
</define-basic-event>
<define-basic-event name="PSH2Failure">
<periodic-test>
<float value="7e-007"/>
<float value="720"/>
<float value="0"/>
<system-mission-time/>
</periodic-test>
</define-basic-event>
<define-basic-event name="PSH3Failure">
<periodic-test>
<float value="7e-007"/>
<float value="720"/>
<float value="0"/>
<system-mission-time/>
</periodic-test>
</define-basic-event>
<define-basic-event name="PSHCCF">
<periodic-test>
<float value="3.5e-008"/>
<float value="720"/>
<float value="0"/>
<system-mission-time/>
</periodic-test>
</define-basic-event>
<define-basic-event name="SDV1Failure">
<periodic-test>
<float value="4.1e-006"/>
<float value="2160"/>
<float value="0"/>
<system-mission-time/>
</periodic-test>
</define-basic-event>
<define-basic-event name="SDV2Failure">
<periodic-test>
<float value="4.1e-006"/>
<float value="2160"/>
<float value="0"/>
<system-mission-time/>
</periodic-test>
</define-basic-event>
<define-basic-event name="SV1Failure">
<periodic-test>
<float value="2.6e-006"/>
<float value="1440"/>
<float value="0"/>
<system-mission-time/>
</periodic-test>
</define-basic-event>
<define-basic-event name="SV2Failure">
<periodic-test>
<float value="2.6e-006"/>
<float value="1440"/>
<float value="0"/>
<system-mission-time/>
</periodic-test>
</define-basic-event>
</define-fault-tree>
</opsa-mef>
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