In compliance with the Quality of Service Regulation, EDP Distribuição uses general service continuity indicators for the different voltage levels.
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.
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”);
TIEPI (medium voltage) - equivalent interruption time of installed power;
END - Undistributed power.
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.
> 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.