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Walkdowns - s1073ch20056
Chapter 2 Implementation Guidance for Operational Configuration Management
Post-Modification Tests

obtained on discrepancy resolutions to ensure that the final configuration is consistent with the design
requirements. The end product of the process is as-built documentation that has been both field-
verified and design-verified. Periodic Equipment Performance Monitoring
This ongoing assessment function verifies that selected SSCs continue to be able to perform their
intended functions (i.e., meet their design requirements). Equipment performance monitoring is
included in the CM program because it is important to maintaining the bonds between the physical
configuration and the design requirements. The results of this monitoring function should be used to
correct any equipment deficiencies that cause the equipment to deviate from the design requirements
and to identify any root causes of performance degradation.
The fully developed program should include (1) implementing procedures established to specify and
control periodic equipment performance monitoring, (2) acceptance criteria defined consistent with the
design requirements, and (3) testing procedures established for frequently performed tests.
Performance monitoring programs should be implemented to routinely monitor, collect (using
calibrated instrumentation), trend, and analyze performance data (including thermal, hydraulic,
electrical, and mechanical data) for SSCs within the CM program. The methods of implementation
should include procedures, checklists, or other guidance documents necessary to conduct these
activities. Specific facility personnel, such as system engineers, should be assigned to each SSC and
held responsible for the performance monitoring activities on assigned SSCs. This responsibility should
include the establishment of performance goals and acceptance criteria consistent with the associated
SSC design requirements. Examples of major tests that should be included in the performance
monitoring program are as follows:
Heat exchanger performance tests (e.g., fouling and heat transfer rate)
Pump performance tests (e.g., head versus flow tests)
Valve performance tests (including stroke times)
Vibration monitoring for major rotating equipment
Battery capacity and performance tests
Other major equipment tests, as applicable (e.g., diesel generators and inverters)
The frequencies for each test should be specified in procedures and periodically reviewed to ensure
adequacy. Reviewing trend graphs of collected equipment data at specified intervals is a proven,
effective approach. For example, if the trend graph indicates that the equipment likely will not meet the
acceptance criteria at or before the next scheduled test, an adjustment in the test schedule and other
maintenance actions would be necessary.
For cost-effective implementation of this function, the timely recognition of interfaces with existing
program requirements is necessary. The equipment monitoring function interfaces with operations,
maintenance, and systems engineering programs. In some cases, adjustments to existing programs
may be sufficient to satisfy the need for ongoing CM assessments. Existing programs should be
reviewed to determine whether they are adequately oriented to maintain configuration and support the
objectives of the CM program and are adequately integrated with other important CM functions. They
should also be reviewed to determine whether their scope is sufficient to address the full breadth of
SSCs within the CM program.
Surveillance testing is typically performed to satisfy regulatory, code, or other requirements to ensure
operability of the equipment within established limits. For SSCs included in the CM program the results
of surveillance testing should be used to detect and correct any deficiencies that cause the equipment

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