Indicators
Continuity of service

In compliance with the Quality of Service Regulation, EDP Distribuição uses general service continuity indicators for the different voltage levels.

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Interruption classification

Section: Interruption classification

Subsection 1: As regards duration

Short interruption- interruption of one second or more and shorter than or equal to three minutes;

Long interruption- interruption lasting more than three minutes.

Subsection 2: As regards the type

Forecasted interruptions- interruptions owing to an arrangement with customers or also on the grounds of public interest or for service reasons where customers are given minimum notice thereof.

Accidental interruptions- the rest.

General service continuity indicators

SAIFI (High, Medium and Low Voltage) - Average long interruption frequency of the system (acronym internationally adopted from the English designation: “System Average Interruption Frequency Index”);

 

SAIDI (high, medium and low voltage) - average length of long interruptions of the system (acronym internationally adopted from the English designation of the indicator "System Average Interruption Duration Index");

 

MAIFI (High and Medium Voltage) - Average frequency of short system interruptions (acronym internationally adopted from the English designation of the indicator “Momentary Average Interruption Frequency Index”);

TIEPI (medium voltage) - equivalent interruption time of installed power;

END - Undistributed power.

Indicadores individuais de continuidade de serviço

O operador de rede de distribuição deve determinar, em cada ano civil e para todos os pontos de entrega:

> Número de interrupções;

> Duração total das interrupções, em minutos.

 

Non-compliance with general and individual quality of service standards entitles the customer to remuneration. For the establishment of these standards, the existence of three zones is considered:

> Zone A: district capitals and places with more than 25,000 customers;

> Zone B: places with a number of customers between 2,500 and 25,000;

> Zone C: all other places.