IEC 60050 - International Electrotechnical Vocabulary

Commission Electrotechnique Internationale
International Electrotechnical Commission
Международная Электротехническая Комиссия

Area: 191: Dependability and quality of service Index language:

Section 191-01: Fundamental concepts
	191-01-01	item
	191-01-02	repaired item
	191-01-03	non-repaired item
	191-01-04	service
	191-01-05	required function
	191-01-06	functional mode
	191-01-07	instant of time
	191-01-08	time interval
	191-01-09	(time) duration
	191-01-10	accumulated time
	191-01-11	measure (in the probabilistic treatment of dependability)
	191-01-12	operation
	191-01-13	modification (of an item)
Section 191-02: Item related performance
	191-02-01	effectiveness (performance)
	191-02-02	durability
	191-02-03	dependability
	191-02-04	capability
	191-02-05	availability (performance)
	191-02-06	reliability (performance)
	191-02-07	maintainability (performance)
	191-02-08	maintenance support performance
Section 191-04: Failures
	191-04-01	failure
	191-04-02	critical failure
	191-04-03	non-critical failure
	191-04-04	misuse failure
	191-04-05	mishandling failure
	191-04-06	weakness failure
	191-04-07	design failure
	191-04-08	manufacturing failure
	191-04-09	ageing failure
	191-04-10	sudden failure
	191-04-11	gradual failure
	191-04-12	cataleptic failure
	191-04-13	relevant failure
	191-04-14	non-relevant failure
	191-04-15	primary failure
	191-04-16	secondary failure
	191-04-17	failure cause
	191-04-18	failure mechanism
	191-04-19	systematic failure
	191-04-20	complete failure
	191-04-21	partial failure
	191-04-22	degradation failure
	191-04-23	common cause failures
	191-04-24	common mode failures
Section 191-05: Faults, errors and mistakes
	191-05-01	fault
	191-05-02	critical fault
	191-05-03	non-critical fault
	191-05-04	major fault
	191-05-05	minor fault
	191-05-06	misuse fault
	191-05-07	mishandling fault
	191-05-08	weakness fault
	191-05-09	design fault
	191-05-10	manufacturing fault
	191-05-11	ageing fault
	191-05-12	programme-sensitive fault
	191-05-13	data-sensitive fault
	191-05-14	complete fault
	191-05-15	partial fault
	191-05-16	persistent fault
	191-05-17	intermittent fault
	191-05-18	determinate fault
	191-05-19	indeterminate fault
	191-05-20	latent fault
	191-05-21	systematic fault
	191-05-22	fault mode
	191-05-23	faulty
	191-05-24	error
	191-05-25	mistake
Section 191-06: Item related states
	191-06-01	operating state
	191-06-02	non-operating state
	191-06-03	standby state
	191-06-04	idle state
	191-06-05	disabled state
	191-06-06	external disabled state
	191-06-07	down state
	191-06-08	up state
	191-06-09	busy state
	191-06-10	critical state
	191-06-11	degraded state
	191-06-12	derated state
Section 191-07: Maintenance
	191-07-01	maintenance
	191-07-02	maintenance philosophy
	191-07-03	maintenance policy
	191-07-04	maintenance echelon
	191-07-05	indenture level (for maintenance)
	191-07-06	level of maintenance
	191-07-07	preventive maintenance
	191-07-08	corrective maintenance
	191-07-09	controlled maintenance
	191-07-10	scheduled maintenance
	191-07-11	unscheduled maintenance
	191-07-12	on-site maintenance
	191-07-13	off-site maintenance
	191-07-14	remote maintenance
	191-07-15	automatic maintenance
	191-07-16	deferred maintenance
	191-07-17	elementary maintenance activity
	191-07-18	maintenance action
	191-07-19	repair
	191-07-20	fault recognition
	191-07-21	fault localization
	191-07-22	fault diagnosis
	191-07-23	fault correction
	191-07-24	function check-out
	191-07-25	restoration
	191-07-26	supervision
	191-07-27	maintenance entity
	191-07-28	function-affecting maintenance
	191-07-29	function-preventing maintenance
	191-07-30	function-degrading maintenance
	191-07-31	function-permitting maintenance
Section 191-08: Maintenance related times
	191-08-01	maintenance time
	191-08-02	maintenance man-hours
	191-08-03	active maintenance time
	191-08-04	preventive maintenance time
	191-08-05	corrective maintenance time
	191-08-06	active preventive maintenance time
	191-08-07	active corrective maintenance time
	191-08-08	undetected fault time
	191-08-09	administrative delay (for corrective maintenance)
	191-08-10	logistic delay
	191-08-11	fault correction time
	191-08-12	technical delay
	191-08-13	check-out time
	191-08-14	fault diagnosis time
	191-08-15	fault localization time
	191-08-16	repair time
Section 191-09: Item state related times
	191-09-01	operating time
	191-09-02	non-operating time
	191-09-03	required time
	191-09-04	non-required time
	191-09-05	standby time
	191-09-06	idle time
	191-09-07	disabled time
	191-09-08	down time
	191-09-09	accumulated down time
	191-09-10	external disabled time
	191-09-11	up time
Section 191-10: Reliability performance measure related times
	191-10-01	time to first failure
	191-10-02	time to failure
	191-10-03	time between failures
	191-10-04	operating time between failures
	191-10-05	time to restoration
	191-10-06	useful life
	191-10-07	early failure period
	191-10-08	constant failure intensity period
	191-10-09	constant failure rate period
	191-10-10	wear-out failure period
Section 191-11: Availability performance measures
	191-11-01	instantaneous availability
	191-11-02	instantaneous unavailability
	191-11-03	mean availability
	191-11-04	mean unavailability
	191-11-05	asymptotic availability
	191-11-06	(steady-state) availability
	191-11-07	asymptotic unavailability
	191-11-08	(steady-state) unavailability
	191-11-09	asymptotic mean availability
	191-11-10	asymptotic mean unavailability
	191-11-11	mean up time
	191-11-12	mean down time
	191-11-13	mean accumulated down time
Section 191-12: Reliability performance measures
	191-12-01	reliability
	191-12-02	(instantaneous) failure rate
	191-12-03	mean failure rate
	191-12-04	(instantaneous) failure intensity
	191-12-05	mean failure intensity
	191-12-06	mean time to first failure
	191-12-07	mean time to failure
	191-12-08	mean time between failures
	191-12-09	mean operating time between failures
Section 191-13: Maintainability and maintenance support performance measures
	191-13-01	maintainability
	191-13-02	(instantaneous) repair rate
	191-13-03	mean repair rate
	191-13-04	mean maintenance man-hours
	191-13-05	mean repair time
	191-13-06	p-fractile repair time
	191-13-07	mean active corrective maintenance time
	191-13-08	mean time to restoration
	191-13-09	fault coverage
	191-13-10	repair coverage
	191-13-11	mean administrative delay
	191-13-12	p-fractile administrative delay
	191-13-13	mean logistic delay
	191-13-14	p-fractile logistic delay
Section 191-14: Test concepts
	191-14-01	test
	191-14-02	compliance test
	191-14-03	determination test
	191-14-04	laboratory test
	191-14-05	field test
	191-14-06	endurance test
	191-14-07	accelerated test
	191-14-08	step stress test
	191-14-09	screening test
	191-14-10	time acceleration factor
	191-14-11	failure rate acceleration factor
	191-14-12	failure intensity acceleration factor
	191-14-13	maintainability verification
	191-14-14	maintainability demonstration
	191-14-15	observed data
	191-14-16	test data
	191-14-17	field data
	191-14-18	reference data
Section 191-15: Design concepts
	191-15-01	redundancy
	191-15-02	active redundancy
	191-15-03	standby redundancy
	191-15-04	fail safe
	191-15-05	fault tolerance
	191-15-06	fault masking
Section 191-16: Analysis concepts
	191-16-01	prediction
	191-16-02	reliability model
	191-16-03	fault modes and effects analysis
	191-16-04	fault modes, effects and criticality analysis
	191-16-05	fault tree analysis
	191-16-06	stress analysis
	191-16-07	reliability block diagram
	191-16-08	fault tree
	191-16-09	state-transition diagram
	191-16-10	stress model
	191-16-11	fault analysis
	191-16-12	failure analysis
	191-16-13	maintainability model
	191-16-14	maintainability prediction
	191-16-15	maintenance tree
	191-16-16	maintainability allocation
Section 191-17: Improvement processes
	191-17-01	learning process (for reliability)
	191-17-02	burn in (for repairable hardware)
	191-17-03	burn in (for a non-repairable item)
	191-17-04	reliability growth
	191-17-05	reliability improvement
	191-17-06	reliability and maintainability management
	191-17-07	reliability and maintainability assurance
	191-17-08	reliability and maintainability control
	191-17-09	reliability and maintainability programme
	191-17-10	reliability and maintainability plan
	191-17-11	reliability and maintainability audit
	191-17-12	reliability and maintainability surveillance
	191-17-13	design review
Section 191-18: Measure modifiers
	191-18-01	true
	191-18-02	predicted
	191-18-03	extrapolated
	191-18-04	estimated
	191-18-05	intrinsic
	191-18-06	operational
	191-18-07	mean, noun and adjective
	191-18-08	p-fractile
	191-18-09	instantaneous
	191-18-10	steady state
Section 191-19: Service related performance
	191-19-01	quality of service
	191-19-02	serveability performance
	191-19-03	service accessibility performance
	191-19-04	service retainability performance
	191-19-05	service support performance
	191-19-06	service operability performance
	191-19-07	service integrity
	191-19-08	transmission performance
	191-19-09	trafficability performance
	191-19-10	propagation performance (in telecommunications)
	191-19-11	interruption (of service)
Section 191-20: Time concepts related to interruptions
	191-20-01	time between interruptions
	191-20-02	interruption duration
	191-20-03	mean time between interruptions
	191-20-04	mean interruption duration
	191-20-05	mean service provisioning time
	191-20-06	billing error probability
	191-20-07	service user mistake probability
	191-20-08	dialling mistake probability
	191-20-09	service user abandonment probability
	191-20-10	call abandonment probability
	191-20-11	service accessibility
	191-20-12	mean service access delay
	191-20-13	mean access delay (of a communication)
	191-20-14	p-fractile access delay (of a communication)
	191-20-15	service retainability
	191-20-16	connection retainability (in telecommunication)
Section 191-21: Electric power system related concepts
	191-21-01	adequacy (of an electric power system)
	191-21-02	credible event (in an electric power system)
	191-21-03	security (of an electric power system)
	191-21-04	integrity (of a bulk power system)
Section 191-22: Operating states of electric power systems
	191-22-01	stable state (of an electric power system)
	191-22-02	unstable state (of an electric power system)
	191-22-03	adequate state (of an electric power system)
	191-22-04	partially adequate state (of an electric power system)
	191-22-05	inadequate state (of an electric power system)
	191-22-06	alert state (of an electric power system)
	191-22-07	potentially unstable state (of an electric power system)
	191-22-08	potentially inadequate state (of an electric power system)
	191-22-09	secure state (of an electric power system)
	191-22-10	restoration process (of an electric power system)
Section 191-23: Failures (in electric power systems)
	191-23-01	active failure
	191-23-02	passive failure
	191-23-03	cascading
Section 191-24: Outages (in electric power systems)
	191-24-01	planned outage
	191-24-02	unplanned outage
	191-24-03	forced outage
	191-24-04	deferrable outage
	191-24-05	transient outage
	191-24-06	sustained outage
	191-24-07	permanent outage
	191-24-08	temporary outage
Section 191-25: Outage occurrences (in electric power systems)
	191-25-01	outage occurrence
	191-25-02	single-outage occurrence
	191-25-03	multiple-outage occurrence
	191-25-04	related multiple-outage occurrence
	191-25-05	pre-conditioned multiple-outage occurrence
	191-25-06	sequential multiple-outage occurrence
	191-25-07	common-cause outage occurrence
	191-25-08	independent multiple-outage occurrence
Section 191-26: Interruptions
	191-26-01	sustained interruption
	191-26-02	momentary interruption
Section 191-27: Selected customer interruption indices
	191-27-01	interruption frequency per customer served
	191-27-02	interruption frequency per customer interrupted
	191-27-03	service unavailability per customer served
	191-27-04	service unavailability per customer interrupted
	191-27-05	mean duration of a customer interruption
Section 191-28: Bulk power system failures and deficiencies
	191-28-01	load not supplied
	191-28-02	load interrupted
	191-28-03	load shed
	191-28-04	load reduction
Section 191-29: Selected performance indices
	191-29-01	probability of failure to operate
	191-29-02	loss-of-load expectation (of an electric power system)
	191-29-03	loss-of-load probability (of an electric power system)
Section 191-30: Selected energy indices
	191-30-01	expected energy not supplied
	191-30-02	equivalent mean interruption duration
	191-30-03	equivalent peak interruption duration
	191-30-04	aggregate equivalent peak interruption duration
	191-30-05	bulk power energy curtailment index