Smoke ventilation according to EN 12101-2 - D+H Mechatronic

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2.1.4. Testing the wind load WLThe wind load class WL is also tested for facade exhaust system units. In this test, a dummy load is applied to thecasement to simulate a suction load on the vertical facade. The casement must not open when the load is applied.The current standard EN 12101-2 does not distinguish between inward and outward opening sashes. An inwardopening sash is pressed into the outer frame even further by a load acting from inside to outside. The value ofWL = 1500 (from the superseded DIN 18232-3) should be achieved as a minimum.The electromotive drives and/or an optional locking mechanism are essentially the key components in an outwardopening sash that prevent the window opening unintentionally.20Section A
2.1.5. Testing the resistance to heatIn the resistance to heat test, the NSHEV is mounted on a test furnace that is heated from room temperature to300°C within 5 minutes. After this heating-up phase during which optional thermal actuators are deactivated toprevent premature actuation, the NSHEV is actuated and must be driven to the fully open smoke vent positionwithin 60 seconds. The NSHEV must remain in position for a further 25 minutes.The test is passed if the aerodynamic free area has been reduced by a maximum of 10% after the entire periodunder load of 30 minutes. If the area has been reduced to a greater extent, the test is not passed, as not enoughsmoke can be vented from the building in an emergency.2.1.6. Testing the aerodynamic free opening areaVarious measurements are performed on the NSHEV where NSHEVs in the facade are used to extract smoke fromthe building. In particular, the static pressure and the atmospheric pressure are measured at different pressureratios (Pa) at different NSHEV opening angles.The coefficient of discharge Cv or Cv0 required by EN 12101-2 is then determined by means of a formula thattakes into account the measurement results for the flow and pressure as well as the geometric area of theNSHEV. The aerodynamic free opening area A acan then be calculated for the NSHEV.Section A21
Page 3: IntroductionSince September 2006, a
Page 6 and 7: Table of ContentsIntroduction .....
Page 10 and 11: 1 The EN 12101 series of standards
Page 12 and 13: 1.1.1. Facade exhaust system (verti
Page 14 and 15: 1.2.3. Dual single flap when instal
Page 16 and 17: 1.4. Determining the aerodynamic fr
Page 18 and 19: As these two options are not really
Page 22 and 23: clEAr GEoMEtrIc ArEAA v= clear widt
Page 25 and 26: 2.2. Initial inspection of factory
Page 27 and 28: 2.4. Marking an NSHEV in accordance
Page 29 and 30: 2.5. Declaration of ConformityIn th
Page 31 and 32: Federal StateSmoke ventilationwhen?
Page 33 and 34: BCalculation aidsThis section is di
Page 35 and 36: In this sample calculation, an open
Page 37 and 38: 2.3.2. dEtErMInInG tHE WIdtH/HEIGHt
Page 39 and 40: CInformation about D+H drives and b
Page 41 and 42: NSHEV in the vertical facadeType of
Page 43 and 44: 2 D+H bracket setsD+H Mechatronic A
Page 45 and 46: ETerms and abbreviations1 Explanati
Page 47 and 48: Aspect ratioRatio of length to widt
Page 49: Symbol/abbreviationParameter / desc

Smoke ventilation according to EN 12101-2 - D+H Mechatronic

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