Data Collection - std10520110

DOE-STD-1052-93

1.3 Data Collection

1.3.1 For each piece of equipment and measurement point, data should be taken in a format

(i.e., temperature scale, range, emissivity setting, etc.) designated by the predictive

maintenance coordinator or designee.

1.3.2 Any instrument capable of reading the desired data may be used to obtain the data

needed. All such instruments should be incorporated into the measuring and test

equipment program to establish and maintain calibration certification. If possible, the

same type of test equipment should be used on any given component.

1.3.3 Each set of data taken for trending purposes on a particular piece of equipment should

be made with the equipment operating under the same conditions (load, flow, head,

etc.) as previous readings. On major equipment, the operating conditions may be

determined by observing local instruments and/or by contacting operations.

1.3.4 Thermographic data should be taken at all measurement points included in each thermal

survey route. If readings cannot be taken because of operating or environmental

conditions, the readings should be rescheduled.

1.4 Examination and Evaluation of Trend Data

1.4.1 Thermographic data should be reviewed to identify any excessive, high readings or

undesirable trends indicating a degradation of equipment condition.

1.4.2 Infrared thermal monitoring/analysis is not an exact science. Emphasis should be

placed on observed trends as well as actual temperature differentials indicated at any

time. The severity of an individual temperature indication should be determined by a

subjective evaluation of all observed symptoms and prior experience should be

considered with the same or similar equipment.

1.4.3 When a degraded equipment condition is indicated, the predictive maintenance

coordinator or designee should take action to ascertain the validity of the data and

should notify the responsible maintenance organization when the suspected deficient

condition has been verified.

1.5 Preparation and Distribution of Reports

1.5.1 The predictive maintenance coordinator or designee should notify responsible

operations and maintenance personnel when any deficiency is noted that may jeopardize

plant operation.

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