BS EN 13480-6-2004 金属工业管道 第6部分 埋地管道的附加要求.pdf

BRITISH STANDARD BS EN 13480-62004 Incorporating Amendment No. 1 Metallic industrial piping Part 6 Additional requirements for buried piping The European Standard EN 13480-62004, with the incorporation of amendment A12005, has the status of a British Standard ICS 23.040.01 BS EN 13480-62004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 21 July 2004 BSI 2006 ISBN 0 580 44128 8 National foreword This British Standard is the official English language version of EN 13480-62004, including amendment A12005. The start and finish of text introduced or altered by amendment is indicated in the text by tags “. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated in the text by “. The UK participation in its preparation was entrusted to Technical Committee PVE/10, Piping systems, which has the responsibility to A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The 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 Catalogue 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. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests ined; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 34, 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 publication Amd. No. DateComments 1627431 May 2006See national foreword EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13480-6 July 2004 ICS 23.040.01 English version Metallic industrial piping - Part 6 Additional requirements for buried piping Tuyauteries industrielles mtalliques - Partie 6 Exigences complmentaires relatives aux tuyauteries enterres Metallische industrielle Rohrleitungen - Teil 6 Zustzliche Anforderungen fr erdgedeckte Rohrleitungen This European Standard was approved by CEN on 16 April 2004; amendment A12005 was approved by CEN on 22 September 2005. 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 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 version 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, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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 2004 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 13480-62004 A12005 E A1 December 2005 includes amendment A12005 inclut lamendement A12005enthlt nderung A12005 EN 13480-62004 E 2 Contents page Foreword..............................................................................................................................................................3 1 Scope ......................................................................................................................................................4 2 Normative references............................................................................................................................4 3 General....................................................................................................................................................4 3.1 Safety ......................................................................................................................................................4 3.2 Routes.....................................................................................................................................................5 3.3 Depth of installation ..............................................................................................................................5 3.4 Pipes marking and recording...............................................................................................................5 3.5 Internal inspection provisions..............................................................................................................5 3.6 Contents removal...................................................................................................................................5 3.7 Trench drainage.....................................................................................................................................5 4 Materials .................................................................................................................................................6 5 Design and calculation..........................................................................................................................6 5.1 Minimum wall thickness for buried piping..........................................................................................6 5.2 Design.....................................................................................................................................................6 6 Installation..............................................................................................................................................7 6.1 Trenches.................................................................................................................................................7 6.2 Pipe laying..............................................................................................................................................8 6.3 Back filling..............................................................................................................................................8 7 Sleeves or casings.................................................................................................................................8 8 Corrosion protection.............................................................................................................................8 8.1 General....................................................................................................................................................8 8.2 Coatings..................................................................................................................................................9 8.3 Cathodic protection...............................................................................................................................9 9 Examination and testing .......................................................................................................................9 Bibliography......................................................................................................................................................34 Annex A normative Calculations for buried piping....................................................................................10 Annex ZA inative Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC ............................................................................................33 w w w . b z f x w . c o m EN 13480-62004 E 3 Foreword This document EN 13480-62004 has been prepared by Technical Committee CEN/TC 267 “Industrial piping and pipelines”, the secretariat of which is held by AFNOR. 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 January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. For relationship with EU Directives, see inative annex ZA, which is an integral part of this document. This European Standard EN 13480 for metallic industrial piping consists of seven interdependent and not dissociable parts which are  Part 1 General;  Part 2 Materials;  Part 3 Design and calculation;  Part 4 Fabrication and installation;  Part 5 Inspection and testing;  Part 6 Additional requirements for buried piping;  CEN/TR 13480-7 Guidance on the use of conity assessment procedures. According to the CEN/CENELEC Internal Regulations, 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, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Foreword to amendment A1 This European Standard EN 13480-62004/A12005 has been prepared by Technical Committee CEN/TC 267 “Industrial piping and pipelines”, the secretariat of which is held by AFNOR. the latest by June 2006. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. For relationship with EU Directives, see inative Annex ZA, which is an integral part of this European Standard. This European Standard contains the Annex A normative to be added in EN 13480-62004, and the Annex ZA updated to replace the current Annex ZA in EN 13480-62004. According to the CEN/CENELEC Internal Regulations, 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, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 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 2006, and conflicting national standards shall be withdrawn at w w w . b z f x w . c o m EN 13480-62004 E 4 1 Scope This document specifies requirements for industrial piping either totally buried or partly buried and partly run in sleeves or similar protection. It is used in conjunction with the other six parts of EN 13480. Where buried piping subject to this standard connects to piping installed under other jurisdiction such as pipelines, the transition should be made at a closing element e.g. an isolating or regulating valve separating the two sections. This should be close to the boundary of the industrial site, but may be inside or outside the boundary. Operating temperature up to 75 C. NOTE For higher temperatures reference should be made to EN 13941, but it should be kept in mind, that CEN/TC 107 only deals with pre-insulated piping with temperatures up to 140 C and diameters up to 800 mm, which is state of the art for these products. 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 document including any amendments applies. EN 13480-1, Metallic industrial piping – Part 1 General. EN 13480-22002, Metallic industrial piping – Part 2 Materials. EN 13480-3, Metallic industrial piping – Part 3 Design and calculation. EN 13480-5, Metallic industrial piping – Part 5 Inspection and testing. 3 General 3.1 Safety a Buried piping within an industrial site presents a potential hazard to site personal, equipment and environment. The sections set out in this document provide guidance as to how the hazard presented by the piping may be assessed, and the integrity of the piping system maintained. NOTE 1 Attention is drawn to appropriate National or Local regulations. b The main factors to be considered are  Design including Routing, Layout, Interaction with connecting systems;  Materials and Construction Specification and Quality Control;  Operating Procedures and Control;  Corrosion protection;  External Impact Protection and Mitigation. All of these factors interact. w w w . b z f x w . c o m EN 13480-62004 E 5 NOTE 2 It is recommended that all buried piping be subjected to a al hazard analysis procedure. NOTE 3 Attention is drawn to appropriate National or Local regulations. c Additional safety requirements may be specified for group 1 fluids according to EN 13480-1, including automated means of isolating buried sections of piping. 3.2 Routes All routes for buried piping shall be agreed with the owner and operator of the site. The site owner shall be required to furnish details of all other actual or planned buried services including cables and all roadways or other surface loads within the construction working width or zone of the proposed pipe. Piping in class III according to EN 13480-1 shall be separated from any other pipe or service by a minimum distance of 0,25 m unless it can be demonstrated that a smaller distance is acceptable. 3.3 Depth of installation In the absence of special protection e.g. concrete slabs buried piping shall be provided with a minimum cover of 0,8 m. The designer shall consider increasing the extent of cover above the minimum where penetrating co