Norm

NPR-IEC/TR 60890:2014 en;fr

Een verificatiemethode van temperatuurstijging van laagspanningsschakel- en besturingsmaterieel door berekening

172,08

Over deze norm

Status Definitief
Aantal pagina's 65
Commissie Laagspanningsschakelaars
Gepubliceerd op 01-05-2014
Taal Engels, Frans
NPR-IEC/TR 60890 specifies a method of temperature-rise verification of low-voltage switchgear and controlgear ASSEMBLIES by calculation. The method is applicable to enclosed ASSEMBLIES or partitioned sections of ASSEMBLIES without forced ventilation. It is not applicable where temperature rise verification to the relevant product standard of the IEC 61439 series has been established NOTE 1 The influence of the materials and wall thicknesses usually used for enclosures can have some effect on the steady state temperatures. However, the generalised approach used in this technical report ensures it is applicable to enclosures made of sheet steel, sheet aluminium, cast iron, insulating material and the like. The proposed method is intended to determine the temperature rise of the air inside the enclosure.

Details

ICS-code 29.130.20
Nederlandse titel Een verificatiemethode van temperatuurstijging van laagspanningsschakel- en besturingsmaterieel door berekening
Engelse titel A method of temperature-rise verification of low-voltage switchgear and controlgear assemblies by calculation
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