PRA Flashcards

1
Q

Risk Function

A

A designator for a train of equipment used to describing RICTCal or RAsCal maintenance states, such as “EWA” for ECW Train A or “IA11/12” for Instrument Air compressor 11 or 21.

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2
Q

Maintenance State

A

A combination of one or more Risk Functions, such as “EWA IA11/12 CCA” or “CW11/12”, used to describe the current plant configuration

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3
Q

ICDP

ITP

A

Incremental Core Damage Probability

(Work Week Core Damage Risk)

Incremental Trip Probability

(Work Week Trip Risk)

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4
Q

Carryover Risk

A

Incremental risk (ICDP or ITP) which accrues due to maintenance in a given work week which began in a previous week.

Automatically handled in RAsCal and is displayed on the Entry tab. NOT shown in RICTCal because it is not possible to close a sequence with inoperable equipment.

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