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8/13/2019 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=8VogaPly5AY8/13/2019 O1 Bernd Kamerar
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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.pdf8/13/2019 O1 Bernd Kamerar
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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..pdf8/13/2019 O1 Bernd Kamerar
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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