Ревидиран
IEC 62505-3-3:2009 gives particular requirements for voltage transformers used in a.c. single-phase railway applications, fixed installations. Applies to inductive voltage transformers used at traction voltages and frequencies according to IEC 60850.
ПОВУЧЕН
IEC 62505-3-3:2009 ED1
99.60
Повлачење ступило на снагу
20. 1. 2020.
ОБЈАВЉЕН
IEC 62505-3-3:2020 ED2