1、October 2010 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、 91.140.30!$kVz“1725187www.din.deDDIN EN 15727Ventilation for buildings Ducts and ductwork components, leakage classification and testingEnglish translation of DIN EN 15727:2010-10Lftung von Gebuden Luftleitungen und Luftleitungsbauteile, Klassifizierung entsprechend der Luftdichtheit undPrfungEngli
3、sche bersetzung von DIN EN 15727:2010-10Ventilation des btiments Composants de rseaux, classification de ltanchit et essaisTraduction anglaise de DIN EN 15727:2010-10www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1510.10 DIN EN 15
4、727:2010-10 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Heiz- und Raum-luft
5、technik (Heating and Ventilation Technology Standards Committee), Working Committee NA 041-02-52 AA Komponenten (SpA CEN/TC 156/WG 3 und WG 4). EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15727 May 2010 ICS 91.140.30 English Version Ventilation for buildings - Ducts and ductwork components,
6、 leakage classification and testing Ventilation des btiments - Composants de rseaux, classification de ltanchit et essais Lftung von Gebuden - Luftleitungen und Luftleitungsbauteile, Klassifizierung entsprechend der Luftdichtheit und Prfung This European Standard was approved by CEN on 30 April 2010
7、. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on
8、 application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Ce
9、ntre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, No
10、rway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any for
11、m and by any means reserved worldwide for CEN national Members. Ref. No. EN 15727:2010: EEN 15727:2010 (E) 2 Contents Page Foreword 3Introduction .41 Scope 62 Normative references 63 Terms, definitions and symbols .63.1 Terms and definitions .63.2 Symbols 84 Instrumentation 94.1 Calibration 94.2 Air
12、 flow rate measurement 94.3 Pressure measurement .94.4 Temperature measurement .95 Leakage .96 Test rig specifications 107 Test procedure 117.1 Method for testing a technical ductwork product . 117.2 Calculation of the total joint length (L) . 117.3 Calculation of the virtual product surface area (A
13、c) 117.4 Correction of leakage . 127.5 Calculation of the product tightness factor (fc) . 128 Test report . 12Bibliography . 13DIN EN 15727:2010-10 EN 15727:2010 (E) 3 Foreword This document (EN 15727:2010) has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings”, the secretar
14、iat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2010, and conflicting national standards shall be withdrawn at the latest by November 2010. Attention is drawn
15、 to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
16、 countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
17、 Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15727:2010-10 EN 15727:2010 (E) 4 Introduction The position of this standard in the field of mechanical services is shown in Figure 1. DIN EN 15727:2010-10 EN 15727:2010 (E) 5 Mechanical Building Services Control systems Ventilatio
18、n and air conditioning Heating systems systems Air handling units Ductwork Installation Handing over Circular sheet metal ducts Dimensions Flexible ducts Determination of mechanical energy loss Hangersand supports Rectangular sheet metal ducts. Dimensions Measurement of duct surface area Requirement
19、s for ductwork components to facilitate maintenance Flanges Identification Circular sheet metal ducts Strength and leakage Rectangular sheet metal ducts Strength and leakage Ductwork made of insulation duct boards Technical ductwork products, leakage classification and testing Figure 1 Position of t
20、his standard in the field of mechanical services DIN EN 15727:2010-10 EN 15727:2010 (E) 6 1 Scope This European Standard applies to technical ductwork products, intended for installation in ductwork conforming to EN 1505 and EN 1506, used in air conditioning and ventilation systems defined in the sc
21、ope of CEN/TC 156. This document specifies the leakage requirements for technical ductwork products, i.e. components in the ductwork that has more functions than conveying air, such as sound attenuators, filter boxes and duct fans, etc. The following products are not within the scope of this documen
22、t: ductwork components like bends, reducers, ducts and T-pieces. EN 12237 and EN 1507 apply; flexible ducts according to EN 13180; ducts made of insulation ductboards according to EN 13403; dampers according to EN 1751; air handling units according to EN 1886. This document is a parallel standard to
23、 EN 12237, EN 1507 and EN 1751, based on the same leakage classification. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenc
24、ed document (including any amendments) applies. EN 1505, Ventilation for buildings Sheet metal air ducts and fittings with rectangular cross section Dimensions EN 1506, Ventilation for buildings Sheet metal air ducts and fittings with circular cross-section Dimensions EN 12792:2003, Ventilation for
25、buildings Symbols, terminology and graphical symbols 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12792:2003 and the following apply. 3.1.1 nominal diameter dnnominal diameter according to EN 1506 for ductwork of
26、circular cross-section 3.1.2 side lengths a and b side lengths according to EN 1505 for a ductwork of rectangular cross-section DIN EN 15727:2010-10 EN 15727:2010 (E) 7 3.1.3 total joint length L total length of the periphery of the joints of the connections of the technical products 3.1.4 product s
27、urface area Apactual external envelope surface area for the technical ductwork product under test, excluding possible flanges and insertion parts 3.1.5 virtual product surface area Acquantity used for calculation of the permitted leakage for the product under test according to this document NOTE Acm
28、ay deviate from the product surface area. 3.1.6 test pressure pteststatic pressure difference between the pressure within the product to be tested and the pressure of the ambient air 3.1.7 static pressure limit psmaximum design operating pressure for the ductwork according to its air tightness class
29、 NOTE The static pressure limits, positive and negative, for the appropriate air tightness class are specified in Table 3 and Table 4. 3.1.8 air leakage rate qvlair leakage flow rate of the product under test 3.1.9 measured air leakage rate qvlmeasuredair leakage flow rate before correction of tempe
30、rature and atmospheric pressure (see 7.4) 3.1.10 air temperature t temperature of the ambient air during the test 3.1.11 atmospheric pressure pabarometric pressure of ambient air during the test 3.1.12 tightness factor fcleakage flow rate per unit surface area of the product DIN EN 15727:2010-10 EN
31、15727:2010 (E) 8 3.1.13 air leakage limit fmaxmaximum permitted leakage factor for the product according to its air tightness class 3.1.14 technical ductwork product component, including its connection pieces, installed in the ductwork that has one or more functions more than conveying air NOTE 1 So
32、und attenuators, filter boxes and duct fans are typical examples of technical ductwork products and can be tested separately according to this standard. These technical ductwork products are also a part of the ductwork and can be included in the tests in duct systems according to EN 12237 and EN 150
33、7. NOTE 2 Ductwork components like bends, reducers, ducts and T-pieces are not within the scope of this standard. EN 12237 and EN 1507 apply. 3.2 Symbols The nomenclature shown in Table 1 is used throughout this document. Table 1 Symbols Symbol Quantity Units ApProduct surface area m a and b Side le
34、ngths m dnNominal diameter m L Total joint length m AcVirtual product surface area m2fcProduct Tightness factor ms-1m-2fmaxAir leakage limit ms-1m-2paAtmospheric pressure Pa psStatic pressure limit (p - pa) Pa ptestTest pressure Pa qvlmeasuredMeasured air leakage rate ms-1qvlAir leakage rate ms-1t A
35、ir temperature C DIN EN 15727:2010-10 EN 15727:2010 (E) 9 4 Instrumentation 4.1 Calibration Periodic calibration of the measurement system used in this test method according to manufacturer specifications or to standardized quality systems is required. 4.2 Air flow rate measurement Leakage air flow
36、meters shall have a minimum indicated accuracy according to the ranges in Table 2. Table 2 Accuracy of leakage air flow meters Range ms-1Accuracy of measurement Up to and including 1,8 10-5 9 10-7m3s-1More than 1,8 10-5 5 % 4.3 Pressure measurement Manometers for pressure measurement shall have an i
37、ndicated accuracy not greater than 2 %. 4.4 Temperature measurement Measurement of temperature is carried out, for example by means of mercury-in-glass thermometers, resistance thermometers or thermo-couples. Instruments shall be graduated, or give readings in intervals not greater than 0,5 K, and c
38、alibrated to an accuracy not greater than 0,25 K. 5 Leakage The leakage factor (fc) shall be lower than the air leakage limit (fmax), corresponding to the required air tightness class, specified in Table 3, for all test pressures (ptest) between the static pressure limit (ps). The air tightness clas
39、ses are specified in Table 3 and Table 4. The classes correspond to EN 12237:2003 and EN 1507:2006 but there will always be a difference between system and technical product classifications. Explanation: a number of technical ductwork products classified in air tightness class C will not automatical
40、ly fill the demands for air tightness class C in systems. DIN EN 15727:2010-10 EN 15727:2010 (E) 10 Table 3 Air tightness classification for technical ductwork products with circular cross section connections Air tightness class Static pressure limit (ps) Pa Air leakage limit (fmax) ms-1m-2Positive
41、Negative A 500 500 0,027 ptest0,65 10-3B 1 000 750 0,009 ptest0,65 10-3C 2 000 750 0,003 ptest0,65 10-3D 2 000 750 0,001 ptest0,65 10-3Table 4 Air tightness classification for technical ductwork products with rectangular cross section connections Air tightness class Air leakage limit (fmax) ms-1m- S
42、tatic pressure limits (ps) Pa Negative for all pressure classes Positive at pressure class 1 2 3 A 0,027 ptest0,65 10- 200 400 B 0,009 ptest0,65 10- 500 400 1 000 2 000 C 0,003 ptest0,65 10- 750 400 1 000 2 000 D 0,001 ptest0,65 10- 750 400 1 000 2 000 6 Test rig specifications The product to be tes
43、ted shall be sealed off before commencing the test with end caps and sealing of the jointing system specified by the manufacturer. The end caps do not have to be attached with screws or rivets that will cause damage to the product under test. The test rig shall be equipped so that the product can be
44、 pressurized and the pressure ptestand the volume airflow qvlcan be measured, see example in Figure 2. DIN EN 15727:2010-10 EN 15727:2010 (E) 11 3214Key 1 Product under test 2 Pressure meter ptest 3 Air flow meter qvl 4 End caps Figure 2 Arrangement for leakage measurement in technical ductwork prod
45、ucts 7 Test procedure 7.1 Method for testing a technical ductwork product The test product shall be subjected to several test pressures, at least five positive and five negative, within a range of test pressures up to and including the static pressure limits (ps). The leakage rate reading shall be r
46、ecorded under stable conditions, i.e. when each test pressure has been maintained within 5 % of the specified value for 5 min. 7.2 Calculation of the total joint length (L) The total joint length, in metres, for a product of circular cross-section is the sum of the joint perimeter of each connection
47、 (1 to n). L = (d1 + d2 + . dn) (1) The total joint length, in metres, for a product of rectangular cross-section is the sum of each joint perimeter. L = 2 (a1 + b1 + a2 + b2 + . an + bn) (27.3 Calculation of the virtual product surface area (Ac) The virtual product surface area Ac, in square metres
48、, is: Ac= L 0,5 (3) or DIN EN 15727:2010-10 EN 15727:2010 (E) 12 Ac= Ap(the product surface area) (4) whichever is the larger. 7.4 Correction of leakage The measured leakage flow rate, in cubic metres per second, shall be corrected if the temperature (t) and/or atmospheric pressure (pa) are differen
49、t from the standard conditions (+ 20 C and 101 325 Pa) as follows: 325101273293avlmeasuredvlptqq += (5) 7.5 Calculation of the product tightness factor (fc) cvlcAqf = (6) in cubic metres per second per square metre. 8 Test report The test report shall include the following information on the tests: a) date and place of test according to EN 15727; b) test personnel and witnesses; c) a record of
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