IEEE 859-1987
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
IEEE Standard Terms for Reporting and Analyzing Outage Occurrences and Outage States of Electrical Transmission Facilities
04-15-2019
English
02-17-1988
1. Purpose
2. Scope
3. Equipment Classifications
3.1 Component
3.1.1 Termination
3.1.2 Line Section
3.2 Subcomponent
3.2.1 Line Segment
3.3 Unit
3.4 Terminal
4. Component and Unit States and Events
4.1 State
4.1.1 In-Service State
4.1.2 Outage State
4.2 Changes in State
4.2.1 Outage Occurrence
4.2.2 Outage Event
4.3 Outage Initiation
4.3.1 Automatic Outage
4.3.2 Manual Outage
4.4 Outage Type
4.4.1 Forced Outage
4.4.2 Scheduled Outage
4.5 Failure
4.5.1 Failure of Continuously Required Function
4.5.2 Failure of Response Function
5. State Times
5.1 Service Time
5.2 Outage Time
5.3 Reporting Period Time
5.4 Outage Duration
6. Exposure Parameters
6.1 Exposure (Time)
6.2 Exposure (Operations)
6.3 Weather
6.3.1 Adverse Weather
6.3.2 Major Storm Disaster
6.3.3 Normal Weather
7. Outage Indices
7.1 Rate Indices
7.1.1 Outage Rate
7.1.2 Failure Rate
7.1.3 Protective System False Operation Rate
7.2 Duration Indices
7.2.1 Mean Time to Outage
7.2.2 Mean Outage Duration
7.3 State Probability Indices
7.3.1 Availability
7.3.2 Unavailability
7.4 Probability of Failure Indices
7.4.1 Probability of Failure to Open on Command
7.4.2 Probability of Failure to Close on Command
7.4.3 Probability of Failure to Operate on Command
7.4.4 False Operation Probability
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