CEI EN 50522:2022
Current
The latest, up-to-date edition.
Earthing of power installations exceeding 1 kV a.c.
Hardcopy , PDF
English
01-11-2022
This document is applicable to specify the requirements for the design and erection of earthing systems of electrical installations, in systems with nominal voltage above 1 kV AC and nominal frequency up to and including 60 Hz, so as to provide safety and proper functioning for the use intended.
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