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Underground Piping

Take Note
There are some specific cases where the S-RBI assessment approach in IMS PEI changes, depending on the Equipment/Component type.
This section gives guidance for Underground Piping.

Define Asset – Step 1

See Step 1.

Underground piping can be modelled with Component Type: "Piping UG".

Assign DMs to Component – Step 3

See Step 3.

The applicable Degradation Mechanism is: "Soil Corrosion (AR)".

RL – Step 6 & Step 11

See Step 6 and Step 11.

You can use the soil corrosion calculator.

IF – Step 11

See Step 11.

The Interval Factor is generated from the “full life” table.

Barrier Verification – Step 12 & Step 13

See Step 12 and Step 13.

Some of the NDE techniques to inspect these areas are smart pigging and guided wave technology.