1、 DEUTSCHE NORM July 2006DIN EN 1507 ICS 91.140.30 Supersedes DIN 24194-1:1985-11 and DIN V 24194-2:1985-11 (withdrawn 2004-11) Ventilation for buildings Sheet metal air ducts with rectangular section Requirements for strength and leakage English version of DIN EN 1507:2006-07 Lftung von Gebuden Rech
2、teckige Luftleitungen aus Blech Anforderungen an Festigkeit und Dichtheit Englische Fassung DIN EN 1507:2006-07 Document comprises 18 pages No part of this standard may be reproduced without prior permission of DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany
3、, has the exclusive right of sale for German Standards (DIN-Normen). English price group 9 www.din.de www.beuth.de !,p$d“977016512.06DIN EN 1507:2006-07 2 National foreword This standard has been prepared by CEN/TC 156 Ventilation for buildings (Secretariat: United Kingdom). The responsible German b
4、ody involved in its preparation was the Normenausschuss Heiz- und Raumluft-technik (NHRS) (HVAC Standards Committee). Amendments This standard differs from DIN 24194-1:1985-11 and the prestandard DIN V 24194-2:1985-11, which has been withdrawn in November 2004, as follows: a) This standard specifies
5、 reliable values for the deflection of joints and the bulging and/or caving of duct walls under the specified test pressures. b) This standard specifies four air tightness classes (see Table 1). Previous editions DIN 24194-1: 1985-11 DIN V 24194-2: 1985-11 EUROPEAN STANDARD NORME EUROPENNE EUROPISCH
6、E NORM EN 1507 March 2006 ICS 91.140.30 English Version Ventilation for buildings - Sheet metal air ducts with rectangular section - Requirements for strength and leakage Ventilation des btiments - Conduits arauliques rectangulaires en tle - Prescriptions pour la rsistance et ltanchit Lftung von Geb
7、uden - Rechteckige Luftleitungen aus Blech - Anforderungen an Festigkeit und Dichtheit This European Standard was approved by CEN on 16 February 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
8、 of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A ver
9、sion in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Esto
10、nia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATIONEUROP
11、ISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1507:2006: EEN 1507:2006 (E) 2 Contents Page Foreword 4 Introduction . 6 1 Scope. 7 2 Normative r
12、eferences. 7 3 Terms, definition and symbols 7 4 Requirements 9 4.1 Leakage . 9 4.2 Deformation 9 4.3 Deflection of a duct 9 4.4 Deflection of a joint 9 4.5 Bulging and/or caving 9 5 Testing. 9 5.1 Test rig specification . 9 5.2 Leakage testing 9 5.2.1 Test object 9 5.2.2 Test procedure 10 5.2.3 Cor
13、rection of leakage test result . 10 5.3 Strength testing 10 5.3.1 Test object 10 5.3.2 Test procedure 10 5.3.3 Determination of deflection of a duct 10 5.3.4 Determination of deflection of a joint 10 5.3.5 Determination of bulging and/or caving .10 6 Measurement accuracy and test reports 11 6.1 Meas
14、urement accuracy requirements. 11 6.1.1 General requirements. 11 6.1.2 Air flow measurement 11 6.1.3 Differential pressure measurement. 11 6.1.4 Barometric pressure. 11 6.1.5 Temperature measurement 11 6.1.6 Deflection, bulging or carving . 11 6.2 Leakage test report 11 6.2.1 General data 11 6.2.2 T
15、est result . 12 EN 1507:2006 (E) 3 6.3 Strength test report . 12 6.3.1 General data. 12 6.3.2 Test result 12 Bibliography . 16 EN 1507:2006 (E) 4 Foreword This European Standard (EN 1507:2006) has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings”, the secretariat of which i
16、s 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 September 2006, and conflicting national standards shall be withdrawn at the latest by September 2006. This European Standard is one
17、of a series of standards for ductwork used for ventilation and air conditioning of buildings for human occupancy. The position of this European Standard in the field of mechanical services is shown in Figure 1. Mechanical building services Control systems Ventilation and air conditioning Heating sys
18、tems systems Air handling units Ductwork Installation Circular sheet metal ducts Dimensions Circular sheet metal ducts Strength and leakage Rectangular sheet metal ductsStrength and leakage Hangers and supports Rectangular sheet metal ductsDimensions Measurement ofduct surface area Requirements for
19、ductwork components to facilitate maintenance Flanges Identification Flexible ducts Determination of mechanical energy loss Ductwork made of insulation ductboards Figure 1 Position of EN 1507 in the field of mechanical services EN 1507:2006 (E) 5 According to the CEN/CENELEC Internal Regulations, th
20、e national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pola
21、nd, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 1507:2006 (E) 6 Introduction This European Standard specifies requirements and test methods for strength and air leakage of rectangular ductwork. The objective is to establish the mechanical strength and lea
22、kage necessary to verify the fitness for the intended service as installed ductwork. Testing of leakage can be done on site, but testing of strength (deflection, bulging and caving) is confined to laboratories and manufacturers premises. EN 1507:2006 (E) 7 1 Scope The European Standard applies to re
23、ctangular ductwork of sheet metal used in air conditioning and ventilation systems defined in the principal scope of CEN/TC 156. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited app
24、lies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14239, Ventilation for buildings Ductwork Measurement of ductwork surface area ISO 5221, Air distribution and air diffusion Rules to methods of measuring air flow rate in an air handlin
25、g duct 3 Terms, definition and symbols For the purposes of this European Standard, the following terms, definitions and symbols apply. 3.1 ductwork surface area A surface area (m2) of the ductwork determined according to EN 14239 3.2 total joint length L length (m) of joints resulting from the insta
26、llation of the ductwork 3.3 test pressure pteststatic air pressure difference (Pa) between the ductwork to be tested and the surrounding air 3.4 design operating pressure pdesignmaximum static pressure difference (Pa) for which the installed ductwork is designed to operate under normal conditions 3.
27、5 static gauge pressure limit ps maximum design operating pressure (Pa) for the ductwork according to its air tightness class. The pressure classes and corresponding static pressure limits, positive and negative, are defined in Table 1 3.6 leakage flow rate qv air leakage flow rate of the ductwork (
28、m3s-) at a given test pressure, Qmeasuredair leakage flow rate before correction EN 1507:2006 (E) 8 3.7 air temperature t air temperature (C) 3.8 air barometric pressure p air barometric pressure (Pa) 3.9 leakage factor f=qv/A leakage flow rate per unit duct surface area (m3s-m-2) 3.10 air leakage l
29、imit fmaxmaximum permitted leakage factor for the ductwork according to its air tightness class. The air tightness classes are defined in Table 1 Table 1 Ductwork classification Static gauge pressure limits (ps) Pa Positive at pressure class Air tightness class Air leakage limit (fmax) ms-1m- Negati
30、ve at all pressure classes 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 a0,001 ptest0,65 10- 750 400 1 000 2 000 aDuctwork for special application. 3.11 deflection of a duct (cd) shortest distance from the reference level t
31、o the lowest point of the duct wall before and under test (see Figure 2) 3.12 deflection of a joint (cj) largest deformation of a joint when subjected to the appropriate static air pressure. The shortest distance from the reference level, with the actual position of the duct corner as a base, to the
32、 lowest point of the joint under test (see Figure 3) 3.13 bulging, caving (s) largest deformation of the sides of a duct when subjected to a negative (caving) or positive (bulging) pressure. It is given as the measured difference in distance between a reference plane outside the duct and the externa
33、l surface with and without test pressure (see Figure 4) EN 1507:2006 (E) 9 4 Requirements 4.1 Leakage The leakage factor f shall be lower than the air leakage limit fmaxaccording to Table 1 for any test pressure ptestlower than or equal to the design operating pressure pdesign. The requirement shall
34、 be fulfilled for positive and negative pressures. 4.2 Deformation The ductwork shall withstand the static pressure limits ps according to Table 1 without permanent deformation or sudden change in leakage flow rate or test pressure. 4.3 Deflection of a duct The deflection of a duct (cd) shall not ex
35、ceed 0,4 % of lp or 20 mm, whichever is the smaller value. 4.4 Deflection of a joint The joint under test according to Table 1 shall not deflect (cj) by more than 1/250 of its longest side when subjected to maximum pressure rating for the duct classification or. 4.5 Bulging and/or caving No wall of
36、the duct under test according to Table 1 shall bulge and/or cave(s) by more than 3 % of its width or 30 mm, whichever is the smaller value. 5 Testing 5.1 Test rig specification Periodic calibration of the measurement system used in this test method according to manufacturer specifications or to stan
37、dardized quality insurance systems is required. In any case the test rig shall comprise a pressure gauge and variable air flow supply. When strength is tested the rig shall also comprise two supports which are at the same height as the reference level. Figure 5, gives an illustration of the test rig
38、 used for strength. 5.2 Leakage testing 5.2.1 Test object Before commencing the test, the section to be tested shall be sealed off from the rest of the system. In either case the area to be tested shall normally be at least 10 m2. NOTE A normal ratio between the total joint length (L) and area (A) i
39、s L/A = 1 1,5 m-. The test object shall, whenever possible, contain a representative variety of duct dimensions and fittings. EN 1507:2006 (E) 10 5.2.2 Test procedure The section to be tested shall be subjected to test pressures, positive and negative, not lower than its design operating pressure pd
40、esign. The test pressure shall be maintained within 5 % of the specified value for 5 min. For laboratory testing, or when more information on ductwork performance is needed, the testing shall be extended to several test pressures, at least 5 positive and 5 negative within a range of test pressures u
41、p to and including the static pressure limits. In this case the time for stable pressure at each measuring point may be lowered to 1 min. 5.2.3 Correction of leakage test result The measured leakage flow rates shall be corrected if the temperature (t) and/or barometric pressure (p) are different fro
42、m standard conditions (+20 C and 101 325 Pa) as follows: 293qv = q measured x 273+t 101325p 5.3 Strength testing 5.3.1 Test object The test object shall consist of two sections of straight ductwork. The two section shall have a total length of minimum 3,0 m. The ducts shall be placed with one joint
43、halfway between the supports. 5.3.2 Test procedure The section to be tested shall be subjected to a negative pressure not lower than its static pressure limit (negative) according to Table 1. The test pressure shall be maintained within 5 % of the specified value for 5 min. Measure the length of the
44、 duct to be tested and place the supports at the distances specified in 5.1 and Figure 5. Tighten the ends of the duct and connect the test fan and the pressure gauge. 5.3.3 Determination of deflection of a duct Connect the duct to a test rig in accordance with 5.1 Figure 5. Start the air supply and
45、 regulate the pressure to the test pressure appropriate to the tightness class (see Table 1). When steady state is reached, measure the deflection (cd) (see 3.11). 5.3.4 Determination of deflection of a joint Connect the duct to a test rig in accordance with 5.1 and Figure 5. Start the air supply an
46、d regulate the pressure to the test pressure appropriate to the tightness class (see Table 1). When steady state is reached, measure the deflection cj (see 3.12) by measuring the distance from the joint to the corresponding reference plane, with and without pressure. Record the highest value of defl
47、ection. 5.3.5 Determination of bulging and/or caving Connect the duct to a test rig in accordance with 5.1 and Figure 5. Apply the stated test pressure and determine the bulging and caving (see 3.13) from evenness of each side of the duct by measuring the distance from the external duct surface to t
48、he corresponding parallel reference plane based on the position of the duct corner. The difference between the distances, with and without pressure, is the bulging/caving of the side. Record the highest value of bulging/caving. EN 1507:2006 (E) 11 6 Measurement accuracy and test reports 6.1 Measurem
49、ent accuracy requirements 6.1.1 General requirements The test rig shall be inspected by the user before use on site. Periodic calibration of the measurement system used in this test method according to manufacturer specifications or to standardized quality insurance systems is required. 6.1.2 Air flow measurement The air flow rate shall be measured using instruments in accordance with ISO 5221. The air flow rate shall be measured with a maximum uncertainty of 2,5 % of reading or 0,000 012 m3s-1, whicheve
