DIN EN 15632-1-2015 District heating pipes - Pre-insulated flexible pipe systems - Part 1 Classification general requirements and test methods German version EN 15632-1 2009+A1 201.pdf

1、March 2015 Translation by DIN-Sprachendienst.English price group 15No 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、23.040.01!%AR6“2304719www.din.deDDIN EN 15632-1District heating pipes Pre-insulated flexible pipe systems Part 1: Classification, general requirements and test methods;English version EN 15632-1:2009+A1:2014,English translation of DIN EN 15632-1:2015-03Fernwrmerohre Werkmig gedmmte flexible Rohrsyst

3、eme Teil 1: Klassifikation, allgemeine Anforderungen und Prfungen;Englische Fassung EN 15632-1:2009+A1:2014,Englische bersetzung von DIN EN 15632-1:2015-03Tuyaux de chauffage urbain Systmes de tuyaux flexibles prisols Partie 1: Classification, prescriptions gnrales et mthodes dessai;Version anglaise

4、 EN 15632-1:2009+A1:2014,Traduction anglaise de DIN EN 15632-1:2015-03SupersedesDIN EN 15632-1:2009-10www.beuth.deDocument comprises 33 pagesIn case of doubt, the German-language original shall be considered authoritative.02.15DIN EN 15632-1:2015-03 2 A comma is used as the decimal marker. National

5、foreword This document (EN 15632-1:2009+A1:2014) has been prepared by Technical Committee CEN/TC 107 “Prefabricated district heating pipe systems” (Secretariat: DS, Denmark). The responsible German body involved in its preparation was the DIN-Normenausschuss Heiz- und Raumlufttechnik (DIN Standards

6、Committee Heating and Ventilation Technology), Working Committee NA 041-01-12 AA Werksmig gedmmte Mantelrohre fr Fernwrme. This standard includes Amendment A1 approved by CEN on 08 November 2014. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Ame

7、ndments This standard differs from DIN EN 15632-1:2009-10 as follows: a) Clauses 2, 3, 5, 6 and 8 have been modified; b) Annex A has been completely revised and a new Annex D has been added; Annexes B and C have been modified; c) a correction has been made to the German text in Subclause 6.3.5, 3rd

8、paragraph; d) in Subclause 6.3.6, the 3rd formula has been harmonized with the English version. Previous editions DIN EN 15632-1: 2009-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15632-1:2009+A1 December 2014 ICS 23.040.01 Supersedes EN 15632-1:2009English Version District heating pipes

9、- Pre-insulated flexible pipe systems -Part1: Classification, general requirements and test methods Tuyaux de chauffage urbain - Systmes de tuyaux flexibles prisols - Partie 1: Classification, prescriptions gnrales et mthodes dessai Fernwrmerohre - Werkmig gedmmte flexible Rohrsysteme - Teil 1: Klas

10、sifikation, allgemeine Anforderungen und Prfungen This European Standard was approved by CEN on 5 December 2008 and includes Amendment 1 approved by CEN on 8 November 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europe

11、an 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 application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions

12、(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-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belg

13、ium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switze

14、rland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national

15、 Members. Ref. No. EN 15632-1:2009+A1:2014 EEN 15632-1:2009+A1:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 Classification . 12 5 Requirements 12 5.1 Thermal insulation properties . 12 5.2 Flexibility . 12 5.3 Resistance to exter

16、nal actions 13 5.4 Insulation Layer 13 5.4.1 Compressive creep . 13 5.4.2 Water absorption at elevated temperatures . 13 5.5 Casing 13 5.5.1 UV stability 13 5.5.2 Thermal stability . 13 5.5.3 Stress crack resistance 13 5.5.4 Use of rework material . 14 5.6 Surveillance systems . 14 6 Test methods .

17、14 6.1 General . 14 6.2 Flexibility . 14 6.3 Compressive creep . 15 6.3.1 General . 15 6.3.2 Principles of testing . 16 6.3.3 Test apparatus 16 6.3.4 Test sample . 17 6.3.5 Test procedure 18 6.3.6 Calculation and expression of results 18 7 Marking 20 7.1 General marking aspects . 20 7.2 Minimum mark

18、ing information 20 8 Manufacturers information . 20 Annex A (normative) !Thermal conductivity of pre-insulated pipes Test procedure“ . 21 A.1 General . 21 A.2 Requirements 21 A.2.1 Test specimen . 21 A.2.2 Operating temperature . 21 A.2.3 Types of apparatus . 21 A.3 Apparatus 21 A.3.1 Guarded end ap

19、paratus . 21 DIN EN 15632-1:2015-03 EN 15632-1:2009+A1:2014 (E) 3 A.3.2 Calibrated end apparatus . 22 A.3.3 Dimensions 22 A.3.4 Heater pipe surface temperature . 22 A.4 Test specimens 22 A.4.1 Conditioning 22 A.4.2 Surface temperature measurement . 22 A.4.3 Location of temperature sensors 22 A.5 Pro

20、cedure . 22 A.5.1 Test length . 22 A.5.2 Diameter and dimension measurement 22 A.5.3 Thickness of casing 23 A.5.4 Ambient requirements 23 A.5.5 Test pipe temperature . 24 A.5.6 Power supply . 24 A.5.7 Axial heat loss . 24 A.5.8 Test period and stability . 24 A.6 Calculations - Thermal conductivity 2

21、4 Annex B (normative) !Calculation of the heat flow from the medium to the ambient loss of pre-insulated buried district heating pipes“ 26 B.1 General . 26 B.2 Calculations . 26 B.2.1 Single pipe system (SPS) . 26 B.2.2 Twin pipe system (TPS) 27 B.2.3 Radial thermal resistance of the surrounding soi

22、l 27 B.3 Declared values of the radial thermal resistance of buried pipe systems 27 Annex C (!informative“) Determination of design values for the radial thermal resistance 28 Annex D (informative) !Guideline for testing“ 29 D.1 General . 29 D.2 Tests . 29 D.2.1 Type test (Qualification test) 29 D.2

23、.2 Quality surveillance test . 30 D.2.3 Production test 30 Bibliography 31 DIN EN 15632-1:2015-03 EN 15632-1:2009+A1:2014 (E) 4 Foreword This document (EN 15632-1:2009+A1:2014) has been prepared by Technical Committee CEN/TC 107 “Prefabricated district heating pipe systems”, the secretariat of which

24、 is held by DS. 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 June 2015, and conflicting national standards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility t

25、hat 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. This document supersedes EN 15632-1:2009. This document includes Amendment 1 approved by CEN on 2014-11-08. The start and fin

26、ish of text introduced or altered by amendment is indicated in the text by tags !“. This document is one of a series of standards which form several parts of EN 15632, District heating pipes Pre-insulated flexible pipe systems: Part 1: Classification, general requirements and test methods; Part 2: B

27、onded system with plastic service pipes; requirements and test methods; Part 3: Non bonded system with plastic service pipes; requirements and test methods; Part 4: Bonded system with metal service pipes; requirements and test methods. According to the CEN-CENELEC Internal Regulations, the national

28、standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuani

29、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 15632-1:2015-03 EN 15632-1:2009+A1:2014 (E) 5 Introduction Flexible pipe systems in district heating networks are of common technical usage. In

30、order to assure quality including product-related lifetime, to assure safety in use, economical energy usage and to facilitate comparability in the market, CEN/TC 107 decided to set up standards for these products. DIN EN 15632-1:2015-03 EN 15632-1:2009+A1:2014 (E) 6 1 Scope This European Standard p

31、rovides classification, general requirements and test methods for flexible, pre-insulated, directly buried district heating pipe systems. It is intended to be used in conjunction with parts 2, 3, 4, and 5. Depending on the pipe assembly (see Table 4), this European Standard is valid for maximum oper

32、ating temperatures of 95 C to 140 C and operating pressures of 6 bar to 25 bar. The pipe systems are designed for a lifetime of 30 years. For pipe systems with plastic service pipes, the respective temperature profiles are defined in EN 15632-2 and EN 15632-3. NOTE For the transport of other liquids

33、, for example potable water, additional requirements may be applicable. 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 referenced

34、 document (including any amendments) applies. !EN 253:2009+A1:2013“, District heating pipes Preinsulated bonded pipe systems for directly buried hot water networks Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene EN 489, District heating pipes Pre

35、insulated bonded pipe systems for directly buried hot water networks Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene EN 728, Plastics piping and ducting systems Polyolefin pipes and fittings Determination of oxidation induction time EN 744, Pl

36、astics piping and ducting systems Thermoplastics pipes Test method for resistance to external blows by the round-the-clock method EN 1605, Thermal insulating products for building applications Determination of deformation under specified compressive load and temperature conditions EN 1606, Thermal i

37、nsulating products for building applications Determination of compressive creep EN 12085, Thermal insulating products for building applications Determination of linear dimensions of test specimens EN 12667, Thermal performance of building materials and products Determination of thermal resistance by

38、 means of guarded hot plate and heat flow meter methods Products of high and medium thermal resistance EN 13941, Design and installation of preinsulated bonded pipe systems for district heating EN 14419:2003, District heating pipes Pre-insulated bonded pipe systems for directly buried hot water netw

39、orks Surveillance systems EN 60811-4-1:2004, Insulating and sheathing of electric and optical cables Common test methods Part 4-1: Methods specific to polyethylene and polypropylene compounds Resistance to environmental stress cracking Measurement of the melt flow index Carbon black and/or mineral f

40、iller content measurement in DIN EN 15632-1:2015-03 EN 15632-1:2009+A1:2014 (E) 7 polyethylene by direct combustion Measurement of carbon black content by thermogravimetric analysis (TGA) Assessment of carbon black dispersion in polyethylene using a microscope (IEC 60811-4-1:2004) EN ISO 8497, Therm

41、al insulation Determination of steady-state thermal transmission properties of thermal insulation for circular pipes (ISO 8497:1994) EN ISO 9967, Thermoplastics pipes Determination of creep ratio (ISO 9967:2007) EN ISO 9969, Thermoplastics pipes Determination of ring stiffness (ISO 9969:2007) EN ISO

42、 16871, Plastics piping and ducting systems Plastics pipes and fittings Method for exposure to direct (natural) weathering (ISO 16871:2003) EN ISO 23993, Thermal insulation products for building equipment and industrial installations Determination of design thermal conductivity (ISO 23993:2008) ISO

43、6964, Polyolefin pipes and fittings Determination of carbon black content by calcination and pyrolysis Test method and basic specification ISO 16770, Plastics Determination of environmental stress cracking (ESC) of polyethylene Full-notch creep test (FNCT) 3 Terms and definitions For the purposes of

44、 this document, the terms and definitions given in !EN 253:2009+A1:2013“, EN 14419:2003 and the following apply. 3.1 lifetime time during which the flexible pipe system operates without failure at the designated operating temperature 3.2 continuous operating temperature temperature of the heat mediu

45、m for which the system has been designed to operate continuously NOTE See Table 4 3.3 maximum operating temperature exceptionally high operating temperature occurring for short periods only 3.4 operating pressure pressure at which the hot water network is designed to operate continuously 3.5 service

46、 pipe medium carrying pipe which is in contact with warm water 3.6 outer casing separately applied outer layer of the pipe assembly, protecting the construction during installation and protecting the construction against external influences (after installation) DIN EN 15632-1:2015-03 EN 15632-1:2009

47、+A1:2014 (E) 8 3.7 insulation layer layer which provides the designated thermal characteristics of the pipe assembly 3.8 pipe assembly assembled product, consisting of at least one service pipe, insulating material and casing 3.9 pipe system pipe assembly, plus service pipe fittings, casing joints,

48、and other components like surveillance elements 3.10 single pipe system SPS pipe system with one service pipe 3.11 twin pipe system TPS pipe system with two service pipes 3.12 bonded system service pipe, insulating material and casing which are bonded by the insulating material 3.13 non bonded syste

49、m service pipe, insulating material and casing which are not bonded by the insulating material 3.14 casing joint assembly casing joint assembled product, consisting of at least insulating material and casing, designed to protect and thermally insulate a service pipe joint 3.15 ageing factor fafactor without a dimension which expresses the ageing of the insulating layer in relation to the expected lifetime 3.16 moisture factor fmfactor without a dimension for the influence of moi