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Norm
ÖNORM EN 13030
Issue date: 2002 02 01
Ventilation for buildings - Terminals - Performance testing of louvres subjected to simulated rain
This European Standard specifies a method for measuring the water rejection performance of louvres
subject to simulated rain and wind pressures, both with and without ai...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 31 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This European Standard specifies a method for measuring the water rejection performance of louvres
subject to simulated rain and wind pressures, both with and without air flow through the louvre under
test. For the purpose of tests in this standard, a 1000 mm 1000 mm section of weather louvre or the
nearest possible blade increment is considered.
Weather louvres are designed to restrict the passage of water during rainfall while allowing the
passage of air into or from an air distribution system or part of a building. They are used in a wide
range of applications, where there may be differences in wind speed and direction, levels of local
turbulence, rate and droplet size, distribution of rainfall and surface water flow from the surrounding
structure. It is impractical to consider a standard test procedure simulating the whole range of likely
conditions, but this standard provides for heavy rainfall directed on to the louvre surface, with
simulated wind pressures. This provides a common basis on which to compare the water rejection
performance of weather louvres of different designs. This standard is not intended for the evaluation
of weather performance of pressure relief dampers.
The purpose of tests incorporated in this European Standard is as follows:
a) Weather tests
To establish the weather louvre effectiveness when subjected to wind pressure at various air flow
rates.
b) Discharge and Entry loss coefficient/Pressure requirements
To establish the air pressure loss through the weather louvre at various air flow rates and by
calculation the Discharge and Entry Loss Coefficient.
ÖNORM EN 13030
2002 02 01
Ventilation for buildings - Terminals - Performance testing of louvres subjected to simulated rain
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