1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58rectangular section Requirements for strength and leakage The European Standard EN 1507:2006 has th
2、e status of a British StandardICS 91.140.30Ventilation for buildings Sheet metal air ducts with BRITISH STANDARDBS EN1507:2006BS EN 1507:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2006ISBN 0 580 48737 7request to its
3、 secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Ca
4、talogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis documen
5、t comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations r
6、epresented on this committee can be obtained on present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National for
7、ewordThis British Standard is the official English language version of EN 1507:2006.The UK participation in its preparation was entrusted to Technical Committee RHE/2, Ventilation for buildings, heating and hot water services, which has the responsibility to: aid enquirers to understand the text;EUR
8、OPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1507March 2006ICS 91.140.30English VersionVentilation for buildings - Sheet metal air ducts with rectangularsection - Requirements for strength and leakageVentilation des btiments - Conduits arauliquesrectangulaires en tle - Prescriptions pour la rsista
9、nce etltanchitLftung von Gebuden - Rechteckige Luftleitungen ausBlech - Anforderungen an Festigkeit und DichtheitThis 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 Eur
10、opeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English,
11、French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Repu
12、blic, Denmark, Estonia, 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 STANDARDIZATIONCOMIT EUROPEN DE NOR
13、MALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1507:2006: EEN 1507:2006 (E) 2 Contents Page Foreword 4 Introduction . 6 1 Scope. 7 2
14、 Normative references. 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
15、 5.2.3 Correction 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 1
16、1 6.1 Measurement 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
17、11 6.2.2 Test 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
18、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 September 2006, and conflicting national standards shall be withdrawn at the latest by September 2006. This European Standard
19、is one 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 Heat
20、ing systems 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 Requiremen
21、ts for ductwork components to facilitate maintenance Flanges Identification Flexible ducts Determination of mechanical energy loss Ductwork made of insulation ductboards EN 1507:2006 (E) 5 Figure 1 Position of EN 1507 in the field of mechanical services According to the CEN/CENELEC Internal Regulati
22、ons, the 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, Norwa
23、y, Poland, 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
24、and leakage 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 applie
25、s to rectangular 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 ci
26、ted applies. 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
27、handling 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 th
28、e installation 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 condit
29、ions 3.5 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 duc
30、twork (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 le
31、akage limit 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-
32、 Negative 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
33、level to 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,
34、 to the 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
35、external 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 requiremen
36、t shall 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
37、 not exceed 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 w
38、all of 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
39、to standardized 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 t
40、est rig 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 are
41、a (A) is 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 pres
42、sure pdesign. 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 pres
43、sures up 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 differ
44、ent from 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
45、 joint 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
46、 of the 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 sup
47、ply and 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 su
48、pply and 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
49、of deflection. 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 the 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
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