1、BS EN 14419:2009ICS 23.040.01NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDDistrict heating pipes Preinsulated bondedpipe systems fordirectly buried hotwater networks Surveillance systemsThis British Standardwas published under theauthority of the StandardsPol
2、icy and StrategyCommittee on 30 April2009. BSI 2009ISBN 978 0 580 63789 6Amendments/corrigenda issued since publicationDate CommentsBS EN 14419:2009National forewordThis British Standard is the UK implementation of EN 14419:2009. Itsupersedes BS EN 14419:2003 which is withdrawn.The UK participation
3、in its preparation was entrusted to TechnicalCommittee RHE/9, Insulated underground pipelines.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible
4、 for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 14419:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14419March 2009ICS 23.040.01 Supersedes EN 14419:2003 English VersionDistrict heating pipes - Preinsulated bonded pipe system
5、s fordirectly buried hot water networks - Surveillance systemsTuyaux de chauffage urbain - Systmes bloqus de tuyauxprisols pour les rseaux deau chaude enterrsdirectement - Systmes de surveillanceFernwrmerohre - Werkmig gedmmteVerbundmantelrohrsysteme fr erdverlegteFernwrmenetze - berwachungssystemeT
6、his European Standard was approved by CEN on 3 February 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical refere
7、nces concerning such nationalstandards may be obtained on 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 translationunder the responsibility of a CEN member into
8、 its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
9、thuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN
10、 All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14419:2009: EBS EN 14419:2009EN 14419:2009 (E) 2 Contents page Foreword 4Introduction . 51 Scope 62 Normative references 63 Terms and definitions . 64 Basic functional requirements . 84.1
11、Dependency of Manufacturer of pipe elements 84.2 Performance . 85 Manufacture of measuring elements . 95.1 General requirements 95.2 Installation, assembly and operation 95.3 Characteristics . 95.4 Reliability 95.5 Maintenance . 95.6 Longitudinal tightness 95.7 Marking of measuring elements . 95.8 T
12、echnical documentation . 95.8.1 General 95.8.2 For installation of measuring wires within pipe elements 95.8.3 For assembly of measuring elements in the field 105.8.4 For operation of a surveillance system . 106 Manufacture of pipe elements with measuring elements 106.1 General requirements 106.2 Co
13、mpatibility test . 106.2.1 Before series production 106.2.2 Test procedure . 106.2.3 Replication of test 106.3 Installation of measuring elements . 106.3.1 Restrictions regarding type of measuring element . 106.3.2 No electrical contact 106.3.3 Connections . 106.3.4 Geometry of installation 116.3.5
14、Spacers . 116.3.6 Mechanical tightening . 116.4 After pipe element manufacturing . 116.5 Measuring wires at free ends . 116.5.1 Wire length . 116.5.2 Protection of measuring wires . 116.6 Tests 116.6.1 General 116.6.2 Continuity of measuring wire . 116.6.3 No electrical contact 116.7 Quality control
15、 programme . 126.8 Technical documentation . 126.8.1 General 126.8.2 For assembly of measuring elements in the field 126.8.3 For operation of a surveillance system . 127 Assembly of measuring elements in field . 12BS EN 14419:2009EN 14419:2009 (E) 3 7.1 Check upon receipt of pipe elements 127.2 Exte
16、nsion of an existing measuring section 127.2.1 Actual state 127.2.2 Change of system 127.3 Wiring design diagram 127.4 Assembly work in joints . 137.5 Assembly check 137.6 Test after finishing a measuring section 137.6.1 General . 137.6.2 Continuity of measuring elements 137.6.3 No electrical contac
17、t and moisture 137.6.4 Functional test . 137.7 Test and measurement during system operation 137.8 Quality control programme 147.9 Technical documentation . 14Annex A (informative) Principal function 15Annex B (informative) Principal parts of a measuring section 16Annex C (normative) Technical docume
18、ntation 17Annex D (normative) Loop test by pipe Manufacturer . 21D.1 General . 21D.2 Conductor continuity test with an optical or acoustic signal. 21D.3 Measuring ohmic resistance 22Annex E (normative) High voltage test by pipe Manufacturer . 23Annex F (informative) Quality control programme 24F.1 G
19、eneral . 24F.2 Quality control programme for Manufacturer of pipe elements with measuring wires . 24F.3 Quality control programme for Contractor assembling the measuring elements in field . 25Annex G (normative) Loop test in field . 27Annex H (normative) Measuring of the electrical insulation resist
20、ance in field 28Bibliography 29BS EN 14419:2009EN 14419:2009 (E) 4 Foreword This document (EN 14419:2009) has been prepared by Technical Committee CEN/TC 107 “Prefabricated District Heating Pipe Systems”, the secretariat of which is held by DS. This European Standard shall be given the status of a n
21、ational standard, either by publication of an identical text or by endorsement, at the latest by September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject
22、of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14419:2003. This second edition cancels and replaces the first edition (EN 14419:2003), which has been technically revised. Annexes A, B and F are informative
23、. Annexes C, D, E, G and H are normative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany,
24、Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 14419:2009EN 14419:2009 (E) 5 Introduction The first edition of EN 14419 was approved in 2003.
25、The main areas of the current revision are: testing procedures have been changed in order to include pipe elements with diffusion barriers according to revised version of EN 253:2009; testing procedures have been changed in order to include pipe elements for twin pipes according to EN 15698-1; pipe
26、elements produced according to standard for preinsulated flexible pipe systems with bonded metal service pipes EN 15632-4 and standard for twin pipes EN 15698-1 have been added to the definitions of pipe elements suitable for instalment of measuring wires for surveillance systems; the text regarding
27、 testing (cf. 6.4 and 7.1) has been put in agreement with the text in 6.6 (all elements shall be tested); the term “moisture” has been deleted as a specific term and replaced by a note to the term “detection of moisture”; the term “QM-Programme“ has been changed to “Quality control programme“ in ord
28、er to standardize the wording to other standards under TC 107. This standard is a supplement to: EN 253, 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 polyethylen
29、e EN 448, District heating pipes Preinsulated bonded pipe systems for directly buried hot water networks Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene EN 488, District heating pipes Preinsulated bonded pipe systems for directly buried hot
30、 water networks Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene EN 489, District heating pipes Preinsulated bonded pipe systems for directly buried hot water networks Joint assembly for steel service pipes, polyurethane thermal insulatio
31、n and outer casing of polyethylene EN 13941, Design and installation of preinsulated bonded pipe systems for district heating EN 15632-1, District heating pipes Pre-insulated flexible pipe systems Part 1: Classification, general requirements and test methods EN 15632-4, District heating pipes Pre-in
32、sulated flexible pipe systems Part 4 : Bonded system with metal service pipes; requirements and test methods EN 15698-1, District heating pipes Preinsulated bonded twin pipe systems for directly buried hot water networks Part 1: Twin pipe assembly of steel service pipe, polyurethane thermal insulati
33、on and outer casing of polyethylene These are all standards for preinsulated bonded pipe systems for directly buried hot water networks. BS EN 14419:2009EN 14419:2009 (E) 6 1 Scope This European Standard specifies basic functional requirements for surveillance systems for district heating pipe syste
34、ms, specific requirements for measuring elements and their installation within preinsulated bonded pipes, valves and fittings, and the field assembly of these measuring elements in pipe joints. This standard specifies requirements for the manufacture of measuring elements, for the manufacture of pre
35、insulated bonded pipe elements with measuring elements and for the assembly of the measuring elements in the field. All requirements and recommendations described in this standard are based on the experience gained with existing surveillance systems and their principal function, cf. Annex A. The spe
36、cific requirements given are only valid for electrical wire based surveillance systems forming an integral part of the pipes, valves, fittings and joints. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the
37、edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 253, District heating pipes Preinsulated bonded pipe systems for directly buried hot water networks Pipe assembly of steel service pipe, polyurethane thermal insulation
38、 and outer casing of polyethylene EN 448, District heating pipes Preinsulated bonded pipe systems for directly buried hot water networks Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene EN 488, District heating pipes Preinsulated bonded pipe
39、 systems for directly buried hot water networks Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene EN 489, District heating pipes Preinsulated bonded pipe systems for directly buried hot water networks Joint assembly for steel service pipes
40、, polyurethane thermal insulation and outer casing of polyethylene EN 15632-4, District heating pipes Pre-insulated flexible pipe systems Part 4: Bonded system with metal service pipes; requirements and test methods EN 15698-1, District heating pipes Preinsulated bonded twin pipe systems for directl
41、y buried hot water networks Part 1: Twin pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene EN 61557-2, Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protect
42、ive measures Part 2: Insulation resistance (IEC 61557-2:2007) 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 pipe element preinsulated pipes, valves and fittings manufactured according to EN 253, EN 448, EN 488, EN 15632-4 and EN 15
43、698-1 BS EN 14419:2009EN 14419:2009 (E) 7 3.2 pipe system complete pipe installation, including joints, branches, accessories, etc. and adjacent pipes based on pipe element (cf. 3.1) and joints manufactured and assembled in accordance with EN 489 3.3 surveillance system system that consists of measu
44、ring sections and measuring instruments for surveillance of pipe systems. NOTE The principal parts of a measuring section of a surveillance system are given in Annex B. 3.4 system characteristics electrical parameters used by the individual surveillance system for surveillance purpose or for test of
45、 functionality 3.5 measuring instrument electrical instrument used for indicating of deviations and disorders, which are sensed by the measuring elements in a measuring section 3.6 measuring section pipe section with continuously connected measuring elements terminating at the connection points NOTE
46、 Main pipes and branches can be part of the same measuring section. 3.7 measuring element all elements built-in to the pipe systems that enable the detection of moisture NOTE This can be measuring wires or various measuring sensors. 3.8 measuring wire electrical wire used for detection of moisture a
47、nd/or for transport of electrical signals relevant for the surveillance system NOTE 1 Depending on the system several measuring wires for different purposes can be used. NOTE 2 The measuring wires can be bare or insulated, straight or twisted two and two. 3.9 measuring sensor component that changes
48、system characteristics when exposed to moisture NOTE A sensor is a component only operating at a specific point. 3.10 detection of moisture detection of moisture-related parameters with measuring instruments NOTE 1 Only moisture in the insulation due to defects or bad workmanship is relevant NOTE 2 The parameters could be electrical resistance and/or impedance. 3.11 deviation result of comparing the values for moisture-related parameters measured by the surveillance system with the values
