UNE-EN 61881-3:2012/A1:2013 Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 3: Electric double-layer capacitors (Endorsed by AENOR in January of 2014.)
2014UNE-EN 61881-3:2012/A1:2013 Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 3: Electric double-layer capacitors (Endorsed by AENOR in January of 2014.)
2012UNE-EN 61881-3:2012 Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 3: Electric double-layer capacitors (Endorsed by AENOR in November of 2012.)