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Low voltage electrical instalations - 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
STANDARD published on 1.12.2012
Designation standards: ČSN 332000-4-442-ed.2
Classification mark: 332000
Catalog number: 91714
Publication date standards: 1.12.2012
SKU: NS-123180
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
Fuses and other overcurrent protection devicesElectricity supply systems
Pravidla v této normě stanovují požadavky na bezpečnost instalací nn v případě:
Požadavky na uspořádání uzemnění v transformovně jsou uvedeny v IEC 61936-1
1.3.1995
1.7.1997
1.2.2012
1.12.2010
1.1.1996
WITHDRAWN
1.2.2007
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