CEI EN 50522:2022
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Earthing of power installations exceeding 1 kV a.c.
Hardcopy , PDF
English - Italian
01-11-2022
18-08-2025
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.
| Committee |
CT 99
|
| DevelopmentNote |
New child AMD 1 2024 is added. New child AMD 1 2025 is now added
|
| DocumentType |
Standard
|
| Pages |
90
|
| ProductNote |
New child AMD 1 2024 is added.
New child AMD 1 2025 is now added |
| PublisherName |
Comitato Elettrotecnico Italiano
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| EN 50522:2022 | Identical |
| EN 60909-3:2010 | Short-circuit currents in three-phase a.c systems - Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth |
| EN 60529:1991 | Degrees of protection provided by enclosures (IP Code) |
| HD 60364-4-41:2017 | Low-voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock |
| IEC 60949:1988 | Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects |
| IEC TR 61000-5-2:1997 | Electromagnetic compatibility (EMC) - Part 5: Installation and mitigation guidelines - Section 2: Earthing and cabling |
| IEC 60287-3-1:2017 | Electric cables - Calculation of the current rating - Part 3-1: Operating conditions - Site reference conditions |
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