NEN - NPR-IEC/TR 62271-310
High-voltage switchgear and controlgear - Part 310: Electrical endurance testing for circuit-breakers above a rated voltage of 52 kV
|Publication Date:||1 May 2008|
|ICS Code (High voltage switchgear and controlgear):||29.130.10|
|ICS Code (Other switchgear and controlgear):||29.130.99|
This technical report is applicable to class E2 circuit-breakers above a rated voltage of 52 kV for use on overhead lines. The test programmes are based on accumulated electrical stresses due to current interruption during a period of 25 years, which was chosen as representative for a maintenance-free interval.