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O1 Bernd Kamerar

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    Welcome to the Workshop

    DIN 18232-2-Nov. 2007

    CE conformity and marking

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    Agenda

    Welcoming

    Film function of SHEVs

    DIN 18232

    Changes about DIN 18232-2 Nov. 2007Facilitation A/B

    Interaction NRA surface / air

    Smoke ventilation through wall surface

    CE conformity

    The certificate of conformity

    Test criteria

    Identification of NRA devices

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    The function of smoke and heat

    exhaust systems

    http://www.youtube.com/watch?v=8VogaPly5AYhttp://www.youtube.com/watch?v=8VogaPly5AYhttp://www.youtube.com/watch?v=8VogaPly5AY
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    Facilitation A/B

    For rooms that are least 7 m high (previously 9 m) with a surface area of more

    than 1,600 m, one of the two allowances described below may be chosen for

    the rating groups 3,4 and 5 (previously only 4 and 5) if a smoke curtain that is

    as least 1.0 m high is installed for every 1,600 m.

    These relaxation allowances cannot be combined!

    Allowance A: Increased smoke zone surface area.

    The maximum size of each individual smoke zone can be increased from

    1,600 m to 2,600 m if the aerodynamically effective smoke extraction area

    according to Table 3 is increased by 10% for every additional 100 m above1,600 m.

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    Allowance B: Lower smoke curtains.

    If for operational reasons the smoke curtain surrounding the smoke zone with

    a surface area of max. 1,600 m cannot be higher than 1.0 m (minimum value),

    the Aw values in Table 3 may be limited to 50 m of aerodynamically effective

    smoke extraction area for each smoke zone if there is more than one smokezone. This applies if:

    Facilitation A/B

    Overall, at the least the Aw value given in Table 3 is reached in the room

    All natural smoke extraction systems in the adjacent smoke zones can be

    opened using the manual opening systems in the smoke zone affected, asan undercurrent under the smoke apron can be expected

    The air-intake areas correspond to at least the Aw value given in Table 3

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    Interaction of natural smoke and heat

    extraction and air-intake area

    Sufficient air-intake surfaces are always required in the lower part of

    the outer wall to allow replacement air to flow in close to the floor.

    The area required , Azu, must be defined according to the largest

    smoke zone area.

    The following count as air-intake openings:

    Independent air-intake equipment;

    Gates, doors or windows, if they are labelled as "air-inlet opening

    for natural smoke extraction systems on both the inside and the

    outside with labels according to DIN 4066, and can be opened from

    the outside without breakage (no need to break window panes or

    tear down walls or doors).

    It must be possible to open air-intake openings as soon as the natural

    smoke and heat extraction system has been triggered.

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    Interaction of natural smoke and heat

    extraction and air-intake areaThe effective surface area of the air-intake openings must be at least 1.5

    times the aerodynamically effective opening surface of all natural smoke

    and heat extraction units located in a smoke zone.

    To calculate the effective air-intake area for the following, the opening in the

    building's shell must be multiplied by a correction factor, Cz.

    Opening type aperture angle correction factor Cz

    Door opening grid 0,7

    Openable louvre 90 0,65

    Tilt and turn

    sash windows

    90 0,65

    60 0,5

    45 0,4

    30 0,3

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    Interaction of natural smoke and heat

    extraction and air-intake areaThe air-intake area required can be reduced by up to 50 % if:

    - the fresh air enters horizontally close to the ground

    - the upper edge of the air-intake opening is at least 2 metres from the

    edge of the smoke layer

    - the smoke extraction area is increased by 50 %

    It can be linearly interpolated.

    Air-intake ratio Air-intake Smoke and

    heat exhaust

    Cv for tilt sash window

    45 =0,4

    1.5 : 1.0 17.55 m 11.70 m 43.87 m geo.

    1.3 : 1.2 15.21 m 14.04 m 38.02 m geo

    1.0 : 1.5 11.70 m 17.55 m 29.25 m geo

    Example:

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    Example calculation of a hall

    An Awvalue of 4.9 m for smoke extraction and 7.35 m for intake air is required

    according to rating group 5 in Table 3 of the DIN standard.

    Hall data:

    Length : 43,00 m

    Width : 26,00 m

    Hight F : 8,00 m

    Hight T : 6,30 m

    Hight M : 7,15 mSurface : 1.118,00 m

    Average hight 7.15 m

    door

    2,4m

    (1,68)

    is required5 times

    rolling gate

    12 m(8,4)

    Lower edge of the smoke layer 4.5 m

    An Awvalue of 16.6 m for smoke extraction and 24.9 m for intake air is required

    according to rating group 5 in Table 3 of the DIN standard.

    Lower edge of the smoke layer 2,50 m

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    Smoke removal via wall surfaces

    When removing smoke via outer walls, the following should be observed:

    - The Aw areas in Table 3 of DIN 18232-2 apply

    - The surface area must be integrated into at least two opposing walls

    = double the surface area

    - The natural smoke extraction units must be entirely in the smoke layer

    - Sufficient air-intake surfaces (1.5 times the exhaust air) are necessaryin the lower area of the outer wall to allow replacement air to flow in

    close to the floor; these also have to be doubled

    - The air-intake opening must be located at least 1 metre below the

    low-smoke layer

    - The lower edge of the natural smoke extraction unit must be at least

    0.5 metres above the lower border of the smoke layer

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    Smoke removal via wall surfaces

    The control of NSHEV-systems:

    - The NSHEVs are triggered by optical smoke detectors

    - At least one smoke detector for every 80 m

    - For wind speeds 1 m/s only the NSHEVs and air-intake surfaces

    on the leeward side are to be opened

    - For wind speeds < 1 m/s all NSHEVs and air-intake surfaces are

    to be opened.

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    CE-Conformity

    http://localhost/var/www/apps/conversion/tmp/scratch_7/Conformitation%20certificate%20PX.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_7/Conformitation%20certificate%20PX.pdf
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    Test criteria

    Initial testing:

    During the initial inspection for the CE certification the partial

    inspections are to carried out in the following order:

    1. Determination of the aerodynamically effective opening surface

    2. Reliability check

    3. Functional test under load

    4. Functional test at low temperature

    5. Stability test under wind loading

    6. Heat-exposure test

    Every partial inspection must be documented in a test report.

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    CE-conformity

    Declaration of conformity:

    As soon as a manufacturer has received the six inspection

    protocols required for a natural smoke and heat extractor,

    it can confirm the conformity of its product with DIN EN 12101It is now allowed to affix the CE marking. It issues the declaration

    of conformity on its own authority. Appendix ZA of the standards

    specifies the information which must be included in the declaration

    of conformity and on the CE Marking. With the CE marking on the

    equipment and the declaration of conformity, the manufacturer ordistributor confirms that its products comply with all EU directives

    under whose scope they fall. In doing so, it confirms in a legally

    binding manner that all requirements of DIN EN 12101 have been

    met.

    http://localhost/var/www/apps/conversion/tmp/scratch_7/Konformit%C3%A4tserkl%C3%A4rung%20PX%20engl..pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_7/Konformit%C3%A4tserkl%C3%A4rung%20PX%20engl..pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_7/Konformit%C3%A4tserkl%C3%A4rung%20PX%20engl..pdf
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    1. Determination of the aerodynamically effective opening

    surface = Aa value

    For NSHEVs the aerodynamically effective opening surface

    is determined either from the test results for natural smoke

    and heat extractors of various sizes or determined

    experimentally using scaled-down models.

    The aerodynamically effective opening surface is the product of

    the geometrical opening surface and the flow rate coefficient.

    2. Reliability check = RE A, RE 50, RE 1,000

    The designations A, 50 and 1,000 indicate how often the NSHEVwas opened without an external load during the initial inspection.

    The functional position must be reached within 60 seconds.

    In the case of natural smoke and heat extractors which are also

    used for ventilation purposes, this function is only to be checked

    after 10,000 ventilation cycles.

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    3. Functional test under load

    = SL A, SL 0, SL 125, SL 250, SL 500, SL 1,000

    These designations indicate the test snow load in Pa (N/m2)

    with which the test was carried out.

    4. Functional test at low temperature = TA, T(00), T(-5), T(-15), T(-25)

    These designations indicate the temperature in C at which the NSHEV

    was tested.

    Test with the complete natural smoke and heat extractor: the complete

    NSHEV is checked for proper function in an environmental chamber at

    the relevant temperature.

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    5. Stability test under wind loading = WL A, WL 1,500, WL 3,000

    These designations indicate the test load (wind suction load)in Pa applied during the test. The NSHEV must not open at the

    relevant wind load and must show no signs of permanent deformation.

    After the test it must open within 60 seconds on actuation.

    6. Heat-exposure test = B A, B 300, B 600

    These designations indicate the temperature in C at which the NSHEV

    was tested.

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    Furthermore, according to DIN EN 12101-2 the NSHEV mustpossess at least one of the following actuation devices:

    b) An actuation device which is triggered by an electrical signal

    from a remote sensor. e.g. smoke detector, temperature sensor

    c) A pneumatic trigger

    d) A trigger which reacts to another signal

    a) A thermal trigger

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    Designation:

    0432-BPR-210003807

    G-595009

    00000000

    PX2D-0-K226

    500

    4,875

    1,000

    68

    1,500

    -5

    300

    24 6

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    The manufacturer can define the test criteria(severity of the test) on its own.

    Example: Functional reliability test (Re)

    Re 1,000 = 1,000 test cycles

    Re A = 0 test cycles

    Conclusion: A natural smoke extraction unit can

    have a CE marking although it was

    not even opened once during the

    inspection.

    Close

    That shows how leading manufacturers

    react about the new CE marking

    http://localhost/var/www/apps/conversion/tmp/scratch_7/Brosch%C3%BCre%20Bericht%20VW%20&%20VdS%20English.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_7/Brosch%C3%BCre%20Bericht%20VW%20&%20VdS%20English.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_7/Brosch%C3%BCre%20Bericht%20VW%20&%20VdS%20English.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_7/Brosch%C3%BCre%20Bericht%20VW%20&%20VdS%20English.pdf

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