IEEE 338-1971
Trial-Use Criteria for the Periodic Testing of Nuclear Power Generating Station Protection Systems

Standard No.

IEEE 338-1971

Release Date

1971

Published By

IEEE - The Institute of Electrical and Electronics Engineers@ Inc.

Status

Be replaced 2015-05

Replace By

IEEE 338-1975

Latest

IEEE 338-2022

Scope

This document establishes specific criteria for the periodic testing required to ensure operational availability of protection systems utilizing the capability called for in the following sections of the Criteria for Nuclear Power Genera ting Station Protection Systems@ IEEE Std 279-1971: Capability for Sensor Checks (IEEE Std 279-1971@ paragraph 4.9). Means shall be provided for checking@ with a high degree of confidence@ the operational availability of each system input sensor during reactor operation. This may be accomplished in various ways@ for example@ one of the following: (1) By perturbing the monitored variable (2) Within the constraints of Paragraph 4.11@ [of IEEE Std 279-1971] by introducing and varying@ as appropriate@ a substitute input to the sensor of the same nature as the measured variable (3) By cross checking between outputs of channels that bear a known relationship to each other and that have read-outs available. Capability for Test and Calibration (IEEE Std 279-1971@ paragraph 4.10). Capability shall be provided for testing and calibrating channels@ and the devices used to derive the 7 final system output signal from the various channel signals. For those parts of the system where the required interval between testing will be less than the normal time between generating station shutdowns@ there shall be capability for testing during power operation.

IEEE 338-1971 history

• 1970 IEEE 338-2022 IEEE Standard for Criteria for the Periodic Surveillance Testing of Nuclear Power Generating Station Safety Systems
• 2012 IEEE 338-2012 Criteria for the Periodic Surveillance Testing of Nuclear Power Generating Station Safety Systems
• 2006 IEEE 338-2006 Standard Criteria for Periodic Surveillance Testing of Nuclear Power Generating Station Safety Systems
• 1987 IEEE 338-1987 Standard Criteria for the Periodic Surveillance Testing of Nuclear Power Generating Station Safety Systems
• 1970 IEEE 338-1977 IEEE Standard Criteria for the Periodic Testing of Nuclear Power Generating Station Safety Systems
• 1975 IEEE 338-1975 Standard Criteria for the Periodic Testing of Nuclear Power Generating Station Class 1E Power and Protection Systems
• 1971 IEEE 338-1971 Trial-Use Criteria for the Periodic Testing of Nuclear Power Generating Station Protection Systems