Slide 28
InstMC FS2016 V1.3
Nicol Instrument Engineering Limited
Proof testing
Additional requirements including:
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Identify any failure cause that may give common cause failures.
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Test procedures to avoid introducing common cause failures.
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Schedule for proof tests in accordance with SRS.
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Frequency determined by PFD
avg
or PFH calculation.
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Proof test is repeated after repair of any deficiencies.
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Validate and proof tests of SIFs impacted by AP changes.
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Management procedures applied to deferrals and preventing
significant delay to proof testing,
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Reporting of the “as-found” condition includes all faults found
(including the failure mode).
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Testing can be:
Logic
solver