662-663 / 975
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The EPC supplied documentation for installation, commissioning and
site acceptance testing (SAT) not used.
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Full installation quality control, testing and commissioning dossier not
available. Such as:
∗
Documentation available was sparse and did not provide sufficient evidence of
testing of all installed equipment;
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No installation quality assurance inspection certificates;
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Some continuity and earth test certificates for the instrument cable not dated:
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No continuity and earth test certificates for the power cable:
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No as-built drawings (e.g. red lined or as-built available on site).
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The level voting was 1oo2 sensors, but the level trip settings on each
sensor was different and at wrong settings.
∗
There were calibration issues for the new radar level sensors, with
different ranges and zero datum points used for same tank.
Findings