IEEE 3007.2-2010 pdf download IEEE Recommended Practice for the Maintenance of Industrial and Commercial Power Systems
3.1 Definitions
For the purposes of this recommended practice, the following terms and definitions apply. The lEEStandards Dictionary: Glossary of Terms & Definitions should be referenced for terms not defined in thisclause.
breakdown/corrective maintenance: Repair actions that are conducted after a failure in order to restorcequipment or systems to an operational condition.
clectrical equipment: A general term that is applied to materials, fittings, devices, fixtures, and apparatusthat are a part of, or are used in connection with, an clectrical installation. This term includes the clectricalpower generating system; substations; distribution systems including cable and wiring; utilizationequipment; and associated control. protective, and monitoring devices.
failure effect: A description of how the failure affects the device involved in the failure as well as otherequipment in the system.
failure mode: The way a piece of equipment fails, such as open or short circuited, or a description of whathas failed to operate properly, such as loss of communication with a sensor.
failure modes and effects analysis (FMEA): The identification of significant failures, irrespective ofcause, and their consequences. This term includes electrical and mechanical failures that could conceivablyoccur under specified conditions and their effect on system operation, adjoining circuitry. or mechanicalinterfaces.
failure modes, effects, and criticality analysis (FMECA): The identification of significant failures, theirconsequences, and their criticality. Analyzing failure criticality involves classifying or prioritizing the levelof importance for each failure based on the failure rate and the severity of the effect of failure.
hidden/latent failures: An abnormal or dctrimental condition about which no one would know in thenormal course of operation. An example is a device failure that does not occur immediately at the time ofoverstress, but sufficiently weakens the device so that it later fails under normal operating conditions.
maintenance: The act of preserving or keeping in existence the conditions that are necessary in order forequipment to operate as it was originally intended.
predictive maintenance: The practice of conducting diagnostic tests and inspections during normalequipment operations in order to detect incipient weaknesses or impending failures.
preventive maintenance: The practice of conducting routine inspections, tests, and servicing so thatimpending troubles can be detected and then reduced or eliminated.
probability: A number expressing the likelihood of the occurrence of a given event, especially a fractionexpressing how many times the event will happen in a given number of trials.
reliability: The probability that a product or service will operate properly for a specified period of timeunder design operating conditions without failure.
reliability-centered maintenance (RCM): A systematic methodology that establishes initial preventivemaintenance requirements or optimizes existing preventive maintenance requirements for equipment basedupon the consequences of equipment failure The failure consequences are determined by analyzing thepossible failure modes of each component in an operating system and determining what effect that failurewould have on the system and overall mission.
safety-related work practices: The procedures and actions defined in safety standards such as NFPA 70E.
2009 (B46)’ to minimize the exposures and risks of working on or around electrical equipment.
3.2 Abbreviations and acronyms
adjustable speed drive
current transformer
dissipation factor
electromagnetic interference
clectrical preventive maintenance
ethylene propylene rubber [cablel
failure modes and effects analysis
failure modes, effects, and criticality analysis
high-potential
insulated-case circuit breaker
molded-case circuit breaker
partial discharge
power factor
paper-insulated lead-covered [cable]
potential transformer
reliability-centered maintenancc
transformer turns ratio
uninterruptible power supply
valve-regulated lead-acid battery]
voltage transformer
cross-linked polyethylene [cable]