BS EN 1594-2009 Gas supply systems. Pipelines for maximum operating pressure over 16 bar. Functional requirements.pdf
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1、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? BS EN 1594:2009 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1594 January 2009 ICS 23.040.01; 75.200Supersedes EN 1594:2000 English Version Gas supply systems - Pipelines for maximum operating pressure over 16 bar - Functional r
2、equirements Systmes dalimentation en gaz - Canalisations pour pression maximale de service suprieure 16 bar - Prescriptions fonctionnelles Gasversorgungssysteme - Rohrleitungen fr einen maximal zulssigen Betriebsdruck ber 16 bar - Funktionale Anforderungen This European Standard was approved by CEN
3、on 8 December 2008. 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
4、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 translation under the responsibility of a CEN member into its own language and notified to the
5、 CEN Management Centre has the same status as the official 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, Lithuania, Luxembourg, Malta, Nether
6、lands, Norway, 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: rue de Stassart, 36 B-1050 Brussels 2009 CENAll rights of exploitation
7、in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1594:2009: E BS EN 1594:2009 EN 1594:2009 (E) 2 Contents Page Foreword . 5 Introduction . 6 1Scope 7 2Normative references 9 3Definitions, symbols and abbreviations . 10 4Quality and management systems 14 5Safety a
8、nd the environment . 15 5.1Introduction 15 5.2Appropriate safety measures . 15 5.3Routing considerations 15 5.4Line valve spacing 17 6Pressure safety 17 6.1Pressure levels 17 6.2Normal operation . 17 6.3Requirements for installation of pressure safety devices 17 6.4Pipeline with DP equal to or less
9、than 40 bar and hoop stress equal to or less than 0,45 Rt 0,5 . 18 6.5Pipeline with DP equal to or less than 24 bar and hoop stress equal to or less than 0,30 Rt 0,5 . 18 7Design . 19 7.1General . 19 7.2Wall thickness determination. 20 7.3Additional design requirements 21 7.4Analysis of stress and s
10、train . 22 7.5Design report . 24 7.6Land management and geotechnical studies 25 7.7Depth of cover . 25 7.8Casing pipes 26 7.9Station design 26 7.10Pipeline components 28 7.11Pigging suitability . 28 7.12Arrangements for venting 28 7.13Corrosion protection . 29 8Materials and components . 31 8.1Gener
11、al requirements . 31 8.2Pipes . 34 8.3Fittings 34 8.4Flanged connections 34 8.5Insulating connections . 35 8.6Valves . 35 8.7External and internal coatings . 35 8.8End preparation . 35 9Construction 35 9.1General . 35 9.2Execution of work . 36 9.3Special crossings 42 9.4Cleaning . 46 ? BS EN 1594:20
12、09 EN 1594:2009 (E) 3 9.5Testing 46 9.6Acceptance 48 10Operation and maintenance . 49 10.1General . 49 10.2Organisation 49 10.3Operating and maintenance instructions . 50 10.4Emergency plan . 50 10.5Records and documentation 51 10.6Commissioning 51 10.7Decommissioning 51 10.8Recommissioning 51 10.9M
13、aintenance, modification and repair . 51 10.10Abandonment 54 Annex A (informative) Settlement areas . 55 A.1General . 55 A.2Procedure . 55 A.3Construction settlement . 55 A.4Strength calculation 56 A.5Monitoring 60 A.6Action in the event of the allowable/limit values being exceeded . 60 A.7Literatur
14、e 60 Annex B (informative) Mining subsidence . 61 B.1General . 61 B.2Procedure . 61 B.3Strength calculation 61 B.4Action in the event of the allowable/limit values being exceeded . 61 B.5Monitoring 62 B.6Literature 62 Annex C (informative) Frost heave 63 C.1General . 63 C.2Procedure . 63 C.3Strength
15、 calculation 63 C.4Other possible measures 63 C.5Literature 64 Annex D (informative) Landslide areas . 65 D.1General . 65 D.2Procedure . 65 D.3Strength calculation 66 D.4Possible action to prevent the allowable/limit values being exceeded . 66 D.5Monitoring 67 D.6Literature 67 Annex E (informative)
16、Areas with high seismic risk . 68 E.1General . 68 E.2Procedure . 68 E.3Strength calculation 69 E.4Literature 70 Annex F (informative) Soil mechanics parameters 72 F.1Parameters . 72 F.2Soil engineering study 73 F.3Literature 73 Annex G (informative) Bored/jacked crossings . 75 G.1General . 75 G.2Str
17、ength calculation 75 G.3Literature 78 Annex H (informative) Allowable pulsation and vibration levels . 79 ? BS EN 1594:2009 EN 1594:2009 (E) 4 H.1Introduction 79 H.2Pulsations 79 H.3Pipe vibrations . 79 H.4Induced effects 80 H.5Literature 80 Annex I (informative) Allowable vibration levels from cons
18、truction work - blasting . 81 I.1General . 81 I.2Procedure . 81 I.3Strength calculation 81 I.4Literature 82 Bibliography 83 ? BS EN 1594:2009 EN 1594:2009 (E) 5 Foreword This document (EN 1594:2009) has been prepared by Technical Committee CEN/TC 234 “ Gas infrastructures” , the secretariat of which
19、 is held by DIN. 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 July 2009, and conflicting national standards shall be withdrawn at the latest by July 2009. Attention is drawn to the possibility
20、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. This document supersedes EN 1594:2000. There is a complete suite of functional standards prepared by CEN/TC 234 “Gas Supply“
21、 to cover all parts of the gas supply system from the input of gas to the transmission system up to the inlet connection of the gas appliances, whether for domestic, commercial or industrial purposes. A list of the relevant functional standards prepared by CEN/TC 234 is included in Clause 2 and the
22、Bibliography of this document. CEN/TC 234 will continue its work updating this European Standard to the latest developments at regular intervals. In preparing this European Standard a basic understanding of gas supply by the user has been assumed. Gas supply systems are complex and the importance on
23、 safety of their construction and use has led to the development of very detailed codes of practice and operating manuals in member countries. These detailed statements embrace recognised standards of gas engineering and specific requirements imposed by legal structures of these member countries. Th
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