Nominal temperature-time curve
The following temperature-time curves can be selected :
With:
|
t |
time in [min] |
|
θg |
gas temperature in [°C] |
|
αc |
the coefficient of heat transfer by convection |
ISO 834 curve
external fire curve
hydrocarbon curve
smoldering fire curve
during 21 minutes, followed by the standard ISO 834 curve
user defined temperature-time curve
Below a tabular and graphical comparison of the standard fire curves:
