Florida Administrative Code › 25 - PUBLIC SERVICE COMMISSION › 25 - Departmental › Chapter 25-6 - ELECTRIC SERVICE BY ELECTRIC PUBLIC UTILITIES › Part IV - GENERAL SERVICE PROVISIONS › Section 25-6.044 - Continuity of Service

Current through Reg. 50, No. 138; July 16, 2024
(1) Definitions
				  applicable to this part:
(a) "Area of
				  Service." A geographic area where a utility provides retail electric service.
				  An Area of Service can be the entire system, a district, or a subregion of the
				  utility's system in which centralized distribution service functions are
				  carried out.
(b) "Average Duration
				  of Outage Events (L-Bar)." The sum of each Outage Event Duration for all Outage
				  Events occurring during a given time period, divided by the Number of Outage
				  Events over the same time period within a specific Area of Service.
(c) "Customer Average Interruption Duration
				  Index (CAIDI)." The average time to restore service to interrupted retail
				  customers within a specified Area of Service over a given period of time. It is
				  determined by dividing the sum of Customer Minutes of Interruption by the total
				  number of Service Interruptions for the respective Area of Service.
(d) "Customers Experiencing More Than Five
				  Interruptions (CEMI5)." The number of retail customers that sustain more than
				  five Service Interruptions for a specified Area of Service over a given period
				  of time.
(e) "Customer Minutes of
				  Interruption (CMI)." For a given Outage Event, CMI is the sum of each affected
				  retail customer's Service Interruption Duration.
(f) "Momentary Average Interruption Event
				  Frequency Index (MAIFIe)." The average number of Momentary Interruption Events
				  recorded on primary circuits for a specified Area of Service over a given
				  period of time.
(g) "Momentary
				  Interruption." The complete loss of voltage for less than one minute. This does
				  not include short duration phenomena causing waveform distortion.
(h) "Momentary Interruption Event." One or
				  more Momentary Interruptions recorded by the operation of a utility
				  distribution interrupting device within a five minute period. For example, two
				  or three operations of a primary circuit breaker within a five minute period
				  that did not result in a Service Interruption is one Momentary Interruption
				  Event.
(i) "Number of Customers
				  Served (C)." The sum of all retail customers on the last day of a given time
				  period within a specific Area of Service.
(j) "Number of Outage Events (N)." The sum of
				  Outage Events for an Area of Service over a specified period of time.
(k) "Outage Event." An occurrence that
				  results in one or more individual retail customer Service
				  Interruptions.
(l) "Outage Event
				  Duration (L)." The time interval, in minutes, between the time when a utility
				  first becomes aware of an Outage Event and the time of restoration of service
				  to the last retail customer affected by that Outage Event.
(m) "Service Interruption." The complete loss
				  of voltage of at least one minute to a retail customer.
(n) "Service Interruption Duration." The time
				  interval, in minutes, between the time a utility first becomes aware of a
				  Service Interruption and the time of restoration of service to that retail
				  customer.
(o) "System Average
				  Interruption Duration Index (SAIDI)." The average minutes of Service
				  Interruption Duration per retail customer served within a specified Area of
				  Service over a given period of time. It is determined by dividing the total
				  Customer Minutes of Interruption by the total Number of Customers Served for
				  the respective Area of Service.
(p)
				  "System Average Interruption Frequency Index (SAIFI)." The average number of
				  Service Interruptions per retail customer within a specified Area of Service
				  over a given period of time. It is determined by dividing the sum of Service
				  Interruptions by the total Number of Customers Served for the respective Area
				  of Service.
(q) "Planned Service
				  Interruption." A Service Interruption initiated by the utility to perform
				  necessary scheduled activities, such as maintenance, infrastructure
				  improvements, and new construction due to customer growth.