SIST EN 12007-4:2013
(Main)Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 4: Specific functional requirements for renovation
Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 4: Specific functional requirements for renovation
This European Standard describes specific functional requirements for the renovation of pipework in existing gas infrastructures. This European Standard is intended to be applied with the requirements of EN 12007-1.
This European Standard does not apply to pipework in above ground installations.
This European Standard covers the various renovation technologies for gas piping in the range of sizes covering gas mains and gas service lines and is intended to be applied in association with EN 12007-1. Certain pipe networks originally for other purposes can be considered for renovation technologies to make them suitable for gas infrastructure.
This European Standard specifies common basic principles for gas infrastructure. Users of this European Standard should be aware that more detailed national standards and/or code of practice may exist in the CEN member countries. This European Standard is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles.
In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this European Standard, the national legislation/regulation should take precedence as illustrated in FprCEN/TR 13737-1.
FprCEN/TR 13737-1 gives:
- clarification of all legislations/regulations applicable in a member state;
- if appropriate, more restrictive national requirements;
- a national contact point for the latest information.
Gasinfrastruktur - Rohrleitungen mit einem maximal zulässigen Betriebsdruck bis einschließlich 16 bar - Teil 4: Spezifische funktionale Anforderungen für die Sanierung
Diese Europäische Norm beschreibt besondere funktionale Anforderungen für die Sanierung von Leitungs-anlagen als Teil bestehender Gasinfrastruktursysteme. Diese Europäische Norm soll in Verbindung mit den Anforderungen der EN 12007-1 angewendet werden.
Diese Europäische Norm gilt nicht für Leitungsanlagen in oberirdischen Anlagen.
Diese Europäische Norm behandelt die verschiedenen Sanierungstechnologien für Gasrohrleitungen in dem Größenbereich der Hauptgasleitungen und Gashausanschlussleitungen und sie soll in Verbindung mit EN 12007-1 angewendet werden. Bestimmte Leitungsnetzwerke, die ursprüngliche für andere Zwecke gedacht waren, können für Sanierungstechnologien in Betracht gezogen werden, um sie für die Verwendung als Gasinfrastruktur tauglich zu machen.
Diese Europäische Norm beschreibt allgemeine Grundsätze der Gasinfrastruktur. Die Anwender dieser Europäischen Norm sollten sich dessen bewusst sein, dass detailliertere nationale Normen bzw. Technische Regeln in den CEN-Mitgliedsländern existieren können.
Diese Europäische Norm soll in Verbindung mit diesen, die oben erwähnten allgemeinen Grundsätze darlegenden nationalen Normen und/oder Technischen Regeln angewendet werden.
Für den Fall eines Konflikts zwischen strengeren nationalen gesetzlichen Anforderungen/Bestimmungen und den Anforderungen dieser Europäischen Norm ist den nationalen gesetzlichen Anforderungen/Bestimmungen wie in CEN/TR 13737 (alle Teile) ausgeführt Vorrang einzuräumen.
CEN/TR 13737 (alle Teile) enthält
- eine Klarstellung aller geltenden Rechtsvorschriften/Bestimmungen eines Mitgliedstaats;
- ggf. weitergehende strengere nationale Anforderungen;
- einen nationalen Ansprechpartner für die Weitergabe neuester Informationen.
Infrastructures gazières - Canalisations pour pression maximale de service inférieure ou égale à 16 bar - Partie 4: Recommandations fonctionnelles spécifiques pour la rénovation
La présente Norme européenne décrit les recommandations fonctionnelles spécifiques pour la rénovation de tuyauteries dans les infrastructures gazières existantes. La présente Norme européenne est destinée à être appliquée en association avec l’EN 12007-1.
La présente Norme européenne ne s'applique pas à la tuyauterie des installations hors sol.
La présente Norme européenne couvre les différentes technologies de rénovation des tuyauteries à gaz dans une palette de tailles comprenant les conduites de distribution et de branchement du gaz et est destinée à être appliquée en association avec l’EN 12007-1. Certains réseaux de canalisations utilisés à l'origine à d'autres fins peuvent être considérés par des technologies de rénovation pour les rendre aptes à l'infrastructure du gaz.
La présente Norme européenne spécifie les principes de base communs pour les systèmes d'alimentation en gaz. Il convient que les utilisateurs de la présente Norme européenne gardent à l'esprit l'existence éventuelle, dans les pays membres du CEN, de codes de pratique et/ou de normes nationales plus détaillées.
La présente Norme européenne est destinée à s'appliquer conjointement avec ces normes nationales et/ou codes de pratique, qui détaillent les principes de base précités.
En cas de conflits en termes d’exigences plus restrictives dans la réglementations/législation nationale vis-à-vis des exigences de cette Norme européenne, la réglementations/législation nationale doit s’appliquer comme illustré dans le CEN/TR 13737.
Le CEN/TR 13737 donne :
- la clarification de toutes les législations/règlements applicables dans un état membre ;
- si approprié, des exigences nationales plus restrictives ;
- un point de contact national pour une information ultérieure.
Infrastruktura za plin - Cevovodni sistemi za najvišji delovni tlak do vključno 16 bar - 4. del: Posebne funkcionalne zahteve za obnovo
Ta evropski standard poleg splošnih funkcionalnih zahtev iz standarda EN 12007-1 opisuje posebne funkcionalne zahteve za polietilenske (PE) cevovodne sisteme za: a) najvišji obratovalni tlak (MOP) do vključno 10 bar, b) obratovalno temperaturo med –20 °C in +40 °C. Ta evropski standard zajema tri vrste cevi: polietilenske cevi s kakršnimi koli identifikacijskimi črtami, polietilenske cevi s koekstrudiranimi sloji na zunanji in/ali notranji strani cevi, polietilenske cevi s sosednjim termoplastičnim dodatnim slojem, ki ga je mogoče odluščiti, na zunanji strani cevi. Ta evropski standard določa splošna osnovna načela za infrastrukturo za plin. Uporabniki tega evropskega standarda se morajo zavedati, da lahko v državah članicah CEN obstajajo podrobnejši nacionalni standardi in/ali kodeks ravnanja. Ta evropski standard je namenjen uporabi v povezavi s temi nacionalnimi standardi in/ali kodeksi ravnanja, ki določajo zgoraj navedena osnovna načela. Kadar so strožje zahteve v nacionalni zakonodaji/predpisu v nasprotju z zahtevami iz tega evropskega standarda, ima prednost nacionalna zakonodaja/predpis, kot je navedeno v standardu CEN/TR 13737 (vsi deli). Standard CEN/TR 13737 (vsi deli) vsebuje: pojasnitev vse zakonodaje/predpisov, ki se uporabljajo v državi članici, po potrebi strožje nacionalne zahteve in nacionalno kontaktno točko za najnovejše informacije.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gasinfrastruktur - Rohrleitungen mit einem maximal zulässigen Betriebsdruck bis einschließlich 16 bar - Teil 4: Spezifische funktionale Anforderungen für die SanierungInfrastructures gazières - Canalisations pour pression maximale de service inférieure ou égale à 16 bar - Partie 4: Recommandations fonctionnelles spécifiques pour la rénovationGas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 4: Specific functional requirements for renovation91.140.40Sistemi za oskrbo s plinomGas supply systemsICS:Ta slovenski standard je istoveten z:EN 12007-4:2012SIST EN 12007-4:2013en,fr,de01-januar-2013SIST EN 12007-4:2013SLOVENSKI
STANDARDSIST EN 12007-4:20001DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12007-4
August 2012 ICS 23.040.01 Supersedes EN 12007-4:2000English Version
Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 4: Specific functional requirements for renovation
Infrastructures gazières - Canalisations pour pression maximale de service inférieure ou égale à 16 bar - Partie 4: Prescriptions fonctionnelles spécifiques pour la rénovation Gasinfrastruktur - Rohrleitungen mit einem maximal zulässigen Betriebsdruck bis einschließlich 16 bar - Teil 4: Spezifische funktionale Anforderungen für die Sanierung This European Standard was approved by CEN on 24 May 2012.
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 CEN-CENELEC 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 CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, 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, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12007-4:2012: ESIST EN 12007-4:2013
Chart of renovation techniques . 12Annex B (informative)
Advantages and disadvantages of renovation techniques . 13Annex C (informative)
Renovation with continuous or discrete pipe . 16C.1 Definition . 16C.2 Description . 16C.3 Conditions of application . 16C.4 Implementation . 17C.4.1 Preparation . 17C.4.2 Execution . 17Annex D (informative)
Lining with close-fit pipe . 20D.1 Definition . 20D.2 Description . 20D.3 Conditions of application . 20D.4 Implementation . 21D.4.1 Materials . 21D.4.2 Preparation . 21D.4.3 Execution . 21Annex E (informative)
Lining with cured-in-place pipe . 23E.1 Definition . 23E.2 Description . 23E.3 Conditions of application . 23E.4 Implementation . 23E.4.1 Preparation . 23E.4.2 Execution . 24SIST EN 12007-4:2013
Renovation by bursting or splitting existing pipe . 25F.1 Definition . 25F.2 Description . 25F.3 Conditions of application . 25F.4 Implementation . 25F.4.1 Preparation . 25F.4.2 Execution. 26Annex G (informative)
Renovation by the pulling or pushing of the existing pipe . 27G.1 Definition . 27G.2 Description . 27G.3 Conditions of application . 27G.4 Implementation . 27G.4.1 Preparation . 27G.4.2 Execution. 27Annex H (informative)
Joint repairs . 29H.1 Definition . 29H.2 Description . 29H.3 Conditions of application . 29H.3.1 General . 29H.3.2 Internal methods . 29H.3.3 External methods − Commissioned pipework . 30H.4 Implementation . 30H.4.1 Internal repairs . 30H.4.2 External repairs − Commissioned pipework . 31H.5 Testing . 31H.6 Commissioning . 32Annex I (informative)
Resin lining . 33I.1 Definition . 33I.2 Description . 33I.3 Conditions of application . 33I.4 Implementation . 33I.4.1 Preparation . 33I.4.2 Execution . 33I.4.3 Testing . 34I.4.4 Commissioning . 34Annex J (informative) Technical changes between this European Standard and EN 12007-4:2000 . 35Bibliography . 36 SIST EN 12007-4:2013
Pipelines for maximum operating pressure up to and including 16 bar consists of the following parts: Part 1: General functional requirements Part 2: Specific functional requirements for polyethylene (MOP up to and including 10 bar) Part 3: Specific functional requirements for steel Part 4: Specific functional requirements for renovation Part 5: Specific functional recommendations of new service lines1 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, 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, Switzerland, Turkey and the United Kingdom.
1 To be published. SIST EN 12007-4:2013
Pipelines for maximum operating pressure up to and including 16 bar
Part 1: General functional recommendations EN 12007-2, Gas infrastructure
Pipelines for maximum operating pressure up to and including 16 bar
Part 2: Specific functional recommendations for polyethylene (MOP up to and including 10 bar) EN 12007-3, Gas supply systems
Pipelines for maximum operating pressure up to and including 16 bar
Part 3: Specific functional recommendations for steel EN 12327, Gas infrastructure
Pressure testing, commissioning and decommissioning procedures
Functional requirements 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. SIST EN 12007-4:2013
service line transfer act of switching over the service line connection from the old pipe to the new one 3.8 pressure uprating activities pertaining to the increase of the operating pressure beyond the existing maximum operating pressure level of a gas infrastructure 3.9
commissioning activities required to pressurize pipework, stations, equipment and assemblies with the gas and to put them into operation 3.10 decommissioning activities required to take out of service any pipework, stations, equipment and assemblies filled with gas and to disconnect them from the system 3.11 renovation method by which the characteristics of the gas infrastructure are improved by re-using the existing structure or installing a new structure in its place 3.12 carrier pipe existing pipework in which a renovation system is installed
Note 1 to entry: The carrier pipe can be either a conduit pipe or a support pipe. SIST EN 12007-4:2013
EN 12007-2 for polyethylene pipelines and in EN 12007-3 for steel pipelines. Further general guidance is given in EN 12007-1. SIST EN 12007-4:2013
EN 12007-1. General guidance is given in EN 12007-1. Further guidance for polyethylene systems is given in EN 12007-2. Where a tightness test cannot be carried out, for example joint repairs carried out under live conditions at operating pressure, the pipeline operator shall specify the test method. 7 Service line transfer Service line transfer shall be carried out in accordance with the specifications given by the pipeline operator and the technical requirements of the renovation technique. A strength test, a tightness test or a combined test shall be carried out on the renovated service line and/or connection between service line and gas main before commissioning the service line. These tests shall be in accordance with EN 12327. If, for technical reasons, pressure testing of the service line pipework is not completed prior to connection it shall be tested at the same time as the new section of pipeline. 8 Commissioning and decommissioning Commissioning and decommissioning shall be carried out in accordance with EN 12327. General guidance is given in EN 12007-1. SIST EN 12007-4:2013
Chart of renovation techniques
Figure A.1 — Chart of renovation techniques SIST EN 12007-4:2013
Advantages and disadvantages of renovation techniques Table B.1 — Advantages and disadvantages of renovation techniques (1 of 3) Disadvantages Inspection and cleaning of the carrier pipe can be necessary. It is difficult to cathodically protect the new pipework where steel is used as the inserted pipe. Reduced capacity if the MOP is not increased. It is difficult to locate gas leakages. Inspection and cleaning of the carrier pipe can be necessary. Use of specialized equipment and personnel. External fusion beads have to be removed. It may be necessary to remove bends.
Advantages With the exception of live insertion, minimal equipment is required. Live insertion reduces supply disruption. Inserted pipe does not rely on the integrity of the carrier pipe. Minimal reduction in capacity. Close-fit pipe does not rely on the integrity of the carrier pipe. Techniques Continuous or discrete pipe (Annex C) Close-fit pipe (Annex D)
It can
be necessary to install a sleeve due to the risk of unacceptable damage to the new pipe. Large excavation is needed to remove redundant pipework. Advantages Service lines can be restored without open cut. Capacity of the pipework is maintained. Pipework with large radius bends can be renovated. Allows the replacement of a pipe at the same time location by another of greater diameter. Allows the replacement of a pipe at the same location by another of greater diameter. No fragments of the old pipe remain in the ground. Techniques Cured in place
(Annex E) Bursting or splitting existing pipe
(Annex F) Pulling or pushing existing pipe
(Annex G) SIST EN 12007-4:2013
Table B.1 — Advantages and disadvantages of renovation techniques (3 of 3) Disadvantages It does not have the same life time as an inserted pipe. Some techniques need cleaning of the pipe. It can have a shorter life expectancy than an inserted pipe. Inspection and cleaning of the carrier pipe is necessary. Branches have to be reconnected by open cut. Product can be sensitive to the temperature at the time of application and can be affected by extremes of temperature in operation. The technique relies on the mechanical properties of the support pipe. Advantages These techniques can be carried out without interrupting gas supply. Some techniques can be carried out with minimum excavation. Capacity of the pipework is maintained. Pipework with large radius bends can be renovated. Techniques Joint repairs
(Annex H) Resin lining
(Annex I)
Renovation with continuous or discrete pipe C.1 Definition This technique involves inserting a new gas pipe of smaller diameter into the existing pipe. The existing pipework therefore becomes a carrier pipe. C.2 Description Two techniques are commonly used: live insertion: where the section of existing pipe to be renovated is not decommissioned prior to and during the insertion work; dead insertion: where the section of existing pipe to be renovated is decommissioned prior to and during insertion work. C.3 Conditions of application The choice of insertion technique is influenced by some of the following factors: a) Dead insertion is generally used: 1) when insertion can be done after decommissioning and disruption of the gas supply during the work period; or 2) when it is known or suspected that the existing pipework needs to be cleaned before renovation; or 3) when it is known or suspected that some obstructions in the existing pipework have to be located and/or to be removed. b) Live insertion can be used if: 1) the annular space is sufficient to supply consumers while they are still connected to the live carrier pipe; and 2) it is possible to separate the pipe insertion or lining process from the transfer of service lines from the old pipework to the new pipework. c) Live insertion should be used where: 1) the downstream gas infrastructure cannot be disrupted; or 2) the disruption of gas supply to the consumers concerned has to be limited in time. SIST EN 12007-4:2013
Lining with close-fit pipe D.1 Definition These techniques temporarily deform the PE pipe to facilitate its insertion into the pipe to be renovated. The pipe being renovated acts purely as a carrier pipe and the new PE pipe is not physically attached to it. D.2 Description There are a range of techniques which can be used. These include but are not limited to: thermal-mechanical deformation: technique which can be carried out hot or cold and which refers to thermal-mechanical deformation. In this procedure PE pipe is pulled through a die to reduce its diameter. In hot procedure the material is heated prior to being passed through the die to a temperature not exceeding the value which is allowed. The pipe is pulled into the existing pipework under tension to maintain the reduced diameter. The reversal process is actioned using the appropriate method. mechanical deformation: technique which refers to a reduction of PE pipe diameter by mechanical deformation. In this procedure PE pipe is forced between two hemispherical rollers of a machine. The reversal process takes place as a function of time and temperature. To accelerate this reversal process, the drawn pipe may be filled with water and subjected to internal pressure. The process can be speeded-up further by increasing the pressure within limits provided by the pipeline operator. use of memory effect of PE pipe: a previously extruded PE pipe of normal shape is, under mechanical and thermal effects, forced into a new form thus reducing the outside diameter of the new shape and is normally purchased in this form. After insertion the pipe is brought back to its original shape by thermal and/or mechanical pressure. The pipe is expanded to its original circular cross section, by using the appropriate method, in order to restore the original polymer morphology prior to reshaping. D.3 Conditions of application The techniques in D.2 can be used: to renew all types of old pipes for diameters between 100 mm and 600 mm; and for the different pressure levels used in the distribution system. The use of PE pipe can enable the Maximum Operating Pressure (MOP) of the gas infrastructure to be increased. For each method the pipe to be renovated is decommissioned in sections. The number and length of the sections will be determined by practical factors. EXAMPLE The number and distribution of consumers supplied from the pipe to be renovated. SIST EN 12007-4:2013
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