
Low-Voltage Electrical Installations - Part 4-442: Protection For Safety - Protection Of Low-Voltage Installations Against Temporary Overvoltages Due To Earth Faults In The High-Voltage System And Due To Faults In The Low Voltage System
出版:Nederlands Normalisatie Instituut

专家解读视频
Defines requirements for the safety of electrical installations in the event of voltage disturbances and electromagnetic disturbances generated for different specified reasons.
HD 60364-4-442:2012 - Identical