Norm

NEN-EN 673:1992 Ontw. en

Thermische isolatie van beglazing - Rekenregels voor de bepaling van de stationaire U-waarde (warmtedoorgangscoëffiënt) van beglazing

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Over deze norm

Status Ingetrokken
Aantal pagina's 10
Commissie Vlakglas
Gepubliceerd op 01-03-1992
Taal Engels
This standard applies to glass, coated glass and materials not transparent in the far infra red. It gives the fundamental rules for calculating the U-value in the central area of glazing. The edge effects due to the thermal bridge through the spacer of a sealed glazing unit or through the window frame are not included. The calculation method embodied, enables the description of U-values on a comparable and fair basis which is accurate and obviates the need to resort to direct measuring methods. It is to be preferred procedure unless the configuration of the glazing makes the calculation inapplicable. For the purposes of product comparision, a vertical position of the glazing is specified. The U-value so calculated is to be used for the glazing components in the calculation of the overall U-value of windows, doors and other openings. In addition U-values can be calculated using the same procedure, for other purposes, in particular for predicting : Heat loss through glazing; Conduction gains in summer; Condensation on glazing surfaces. The contribution of absorbed heat in determining the solar factor.

Details

ICS-code 81.040.20
Nederlandse titel Thermische isolatie van beglazing - Rekenregels voor de bepaling van de stationaire U-waarde (warmtedoorgangscoëffiënt) van beglazing
Engelse titel Thermal insulation of glazing - Calculation rules for determining the steady state "U" value (thermal transmittance) of glazing
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Normatieve verwijzingen
  • 89/106/EEG, Bouwproducten

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