SIST EN 1594:2024
(Main)Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements
Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements
This document describes the functional requirements for pipelines for maximum operating pressure over 16 bar. This document also describes the mechanical requirements for pipework in stations with a maximum operating pressure greater than 16 bar.
NOTE 1 Welding requirements are described in EN 12732. Functional requirements for stations are given in EN 1776, EN 1918-5, EN 12186, and EN 12583.
This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures, where the following applies:
- onshore:
- from the point where the pipeline first crosses what is normally accepted as battery limit between onshore and offshore, and that is not located within commercial or industrial premises as an integral part of the industrial process on these premises except for any pipelines and facilities supplying such premises;
- pipeline system with a starting point onshore, also when parts of the pipeline system on the mainland subsequently cross fjords, lakes, etc.
- high pressure: gas with a maximum operating pressure over 16 bar and a design temperature between −40 °C and 120 °C.
- steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves, couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon steel and joined by welds, flanges or mechanical couplings.
- gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where technical evaluation has ensured that operating conditions or constituents or properties of the gas do not affect the safe operation of the pipeline.
Gas infrastructures covered by this document begin after the gas producer's metering station.
NOTE 2 The functional demarcation of the pipeline system is usually directly after an isolating valve of the installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually located on an isolating valve of the installation, but can differ in particular situations.
A schematic representation of pipelines for gas infrastructure is given in Figure 1.
This document can also be applied to the repurposing of existing pipelines.
[Figure 1 - Schematic representation of pipelines for gas supply over 16 bar]
This document specifies common basic principles for gas infrastructure. Users of this standard are expected to be aware that more detailed national standards and/or code of practice can exist in the CEN member countries.
This document 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 standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737.
CEN/TR 13737 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 für einen maximal zulässigen Betriebsdruck über 16 bar - Funktionale Anforderungen
Dieses Dokument beschreibt die funktionalen Anforderungen an Leitungen mit einem maximal zulässigen Betriebsdruck von über 16 bar. Dieses Dokument legt darüber hinaus die mechanischen Anforderungen an Rohrleitungen in Stationen mit einem maximal zulässigen Betriebsdruck von mehr als 16 bar fest.
ANMERKUNG 1 Die Anforderungen an das Schweißen sind in EN 12732 beschrieben. Die funktionalen Anforderungen für Stationen sind in EN 1776, EN 1918 5, EN 12186 und EN 12583 beschrieben.
Dieses Dokument gilt für den Transport von Gas über landverlegte Hochdruck-Stahlrohrleitungen, für die Folgendes gilt:
- landverlegt:
-- ab der Stelle, an der die Rohrleitungen zuerst die üblicherweise als Grenze (Battery Limit) zwischen auflandig (onshore) und ablandig (offshore) anerkannt sind, und die sich nicht innerhalb eines Gewerbe- oder Werksgeländes als integraler Bestandteil des industriellen Prozesses auf diesem Gelände befinden, ausschließlich der Versorgung solcher Grundstücke dienen und kein wesentlicher Bestandteil der Anlagen für Betriebsabläufe auf diesem Gelände sind;
-- auf dem Festland ihren Ausgang nehmende Leitungssysteme sowie für Teile von Leitungssystemen auf dem Festland, die nachfolgend durch Fjorde, Seen usw. verlaufen.
- Hochdruck: Gas mit einem maximal zulässigen Betriebsdruck von über 16 bar und einer Auslegungstemperatur zwischen −40 °C und 120 °C.
- Infrastruktur für Stahlrohrleitungen: Infrastruktur, die aus Rohrleitungskomponenten wie Rohren, Ventilen, Kupplungen und anderen Einrichtungen besteht und auf Komponenten aus unlegiertem oder niedrig legiertem Kohlenstoffstahl beschränkt ist, die durch Schweißverbindungen, Flanschverbindungen oder mechanische Kupplungen verbunden sind.
- Gas: nicht korrosives Erdgas, Biomethangas, Wasserstoffgas und Gemische dieser Gase, wenn die technische Bewertung ergeben hat, dass die Betriebsbedingungen oder die Bestandteile oder Eigenschaften des Gases den sicheren Betrieb der Rohrleitung nicht beeinträchtigen.
Die Gasinfrastruktur, für die dieses Dokument gilt, beginnt am Ausgang der Messstation des Gasproduzenten.
[…]
Infrastructures gazières - Canalisation pour pression maximale de service supérieure à 16 bar - Prescriptions fonctionnelles
Ce document décrit les exigences fonctionnelles des canalisations pour une pression de service maximale supérieure à 16 bar. Ce document décrit également les exigences mécaniques des canalisations des stations dont la pression maximale de service est supérieure à 16 bar.
NOTE 1 Les exigences de soudage sont décrites dans l'EN 12732. Les exigences fonctionnelles pour les stations sont données dans l'EN 1776, l'EN 1918-5, l'EN 12186 et l'EN 12583.
Le présent document s'applique au transport de gaz via des infrastructures terrestres de canalisations en acier à haute pression, lorsque les conditions suivantes s'appliquent :
- à terre :
- à partir du point où la canalisation traverse pour la première fois ce qui est normalement accepté comme limite de batterie entre onshore et offshore, et qui n'est pas situé dans des locaux commerciaux ou industriels en tant que partie intégrante du processus industriel sur ces locaux, à l'exception des canalisations et des installations alimentant ces locaux;
- système de canalisations avec un point de départ à terre, également lorsque des parties du système de canalisations sur le continent traversent ensuite des fjords, des lacs, etc.
- haute pression : gaz avec une pression de service maximale supérieure à 16 bars et une température de conception comprise entre −40 °C et 120 °C.
- infrastructure de canalisation en acier : infrastructure composée de composants de canalisations, tels que tuyaux, vannes, raccords et autres équipements, limités aux composants en acier au carbone non allié ou faiblement allié et reliés par des soudures, des brides ou des raccords mécaniques.
- gaz : gaz naturel non corrosif, biométhane gazeux, hydrogène gazeux et mélanges de ces gaz lorsque l'évaluation technique a assuré que les conditions de fonctionnement ou les constituants ou propriétés du gaz n'affectent pas la sécurité d'exploitation de la canalisation.
Les infrastructures gazières visées par ce document commencent après le poste de comptage du producteur de gaz.
NOTE 2 La démarcation fonctionnelle du système de canalisations dans une zone d'usine se situe généralement directement après la première vanne d'isolement de l'installation, mais peut différer dans des situations particulières.
Une représentation schématique des canalisations pour les infrastructures gazières est donnée à la figure 1.
Ce document peut également s'appliquer à la reconversion de canalisations existantes.
[Figure 1 - Représentation schématique des canalisations de transport de gaz au-dessus de 16 bar]
Le présent document spécifie les principes de base communs pour les systèmes d'alimentation en gaz. Il convient que les utilisateurs de la présente norme gardent à l'esprit l'existence éventuelle, dans les pays membres du CEN, de codes de pratique et/ou normes nationales.
Le présent document est destiné à être appliqué conjointement avec ces normes nationales et/ou codes de pratique qui détaillent les principes précités.
En cas de conflits liés à des exigences législatives/réglementaires plus restrictives que les prescriptions du présent document, la législation/réglementation nationale doit avoir la priorité comme précisé dans le CEN/TR 13737.
Le CEN/TR 13737 contient :
- la clarification de la législation/réglementation pertinente applicable dans un pays ;
- si appropriée, les exigences nationales plus restrictives ;
- le contact national pour les dernières informations.
Infrastruktura za plin - Cevovodni sistemi za najvišji delovni tlak nad 16 bar - Funkcionalne zahteve
Ta evropski standard se uporablja za transport plina prek kopenskih visokotlačnih jeklenih plinovodnih infrastruktur, pri čemer velja naslednje:
– kopensko: od točke, kjer cevovod prvič prečka točko, ki se običajno šteje kot razmejitev med kopenskim in morskim delom cevovoda, pri čemer cevovod ni nameščen znotraj poslovnih ali industrijskih območij kot sestavni del industrijskega postopka na teh območjih, razen cevovodov in opreme za dostavo plina na ta območja. Ta evropski standard se uporablja za cevovodne sisteme z izhodiščem na kopnem, tudi kadar cevovodni sistem na kopnem prečka fjorde, jezera itd.
– visokotlačno: plin z najvišjim delovnim tlakom nad 16 bar ter konstrukcijsko temperaturo med −40 °C in 120 °C;
– jeklena plinovodna infrastruktura: jeklena infrastruktura za plin, ki jo sestavljajo komponente cevovoda, kot so cevi, ventili, spojke in druga oprema. Na področje uporabe tega dokumenta spadajo komponente cevovoda, izdelane iz nelegiranega ali malo legiranega ogljikovega jekla, ki so zvarjene oziroma združene s prirobnicami ali z mehanskimi spojkami.
– plin: nestrupen in nekoroziven zemeljski plin, biometan, vodik in mešanice teh plinov, pri katerih je bilo s tehničnim vrednotenjem zagotovljeno, da delovni pogoji, sestavine oziroma lastnosti plina ne vplivajo na varno delovanje cevovodnega sistema.
Infrastrukture za plin, ki jih zajema ta evropski standard, se začnejo za merilnimi postajami proizvajalcev plina. Funkcionalna razmejitev cevovodnega sistema na območju obrata se določi od primera do primera. To je običajno neposredno po prvem ločilnem ventilu merilne napeljave.
Ta evropski standard opisuje tudi mehanske zahteve za cevovode v plinskih postajah z najvišjim delovnim tlakom nad 16 barov.
Zahteve za varjenje so opisane v standardu EN 12732. Funkcionalne zahteve za postaje so podane v standardih EN 1776, EN 1918-5, EN 12186 in EN 12583. Zahteve za varno upravljanje in celostno obvladovanje cevovodnega sistema so podane v standardu EN 17649.
Ta evropski standard določa splošna osnovna načela za infrastrukture za plin. Uporabniki tega evropskega standarda naj se zavedajo, da lahko v državah članicah CEN obstajajo podrobnejši nacionalni standardi in kodeksi ravnanja.
Ta evropski standard je namenjen uporabi v povezavi s temi nacionalnimi standardi in/ali kodeksi ravnanja, ki določajo zgoraj navedena načela.
Ta evropski standard se ne uporablja za obstoječe cevovodne sisteme, ki so bili v uporabi pred objavo tega evropskega standarda, ali za spremembe obstoječih cevovodnih sistemov, razen za prilagoditev cevovodnih sistemov za uporabo vodika in njegovih mešanic.
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).
Ta evropski standard se sklicuje na ustrezne evropske in druge priznane standarde za izdelke, ki se uporabljajo za izdelavo in delovanje infrastruktur za plin.
General Information
Relations
Overview
EN 1594:2024 - Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements - is a CEN standard that sets out functional and mechanical requirements for onshore high‑pressure steel pipeline infrastructure. It applies to pipelines with a maximum operating pressure over 16 bar and a design temperature range of −40 °C to 120 °C, using unalloyed or low‑alloy carbon steel joined by welds, flanges or mechanical couplings. The scope covers transport of non‑corrosive natural gas, biomethane, hydrogen and their mixtures (subject to technical evaluation), pipeline repurposing, routing across lakes/fjords and systems that start onshore. The pipeline system normally begins after the gas producer’s metering station.
Key topics
EN 1594:2024 organizes functional requirements and practical engineering topics relevant to high‑pressure gas pipelines:
- Design principles and basis of design - wall thickness, stress/strain analysis (elastic and limit‑state approaches), and design reports
- Pressure safety and operational limits - pressure levels, normal operation, and device requirements (including guidance for pipelines with specific DP and hoop stress thresholds)
- Materials and components - requirements for base material, weldability, pipes, fittings, valves and inspection records for carbon steels
- Construction and execution - site marking, trenching, welding and weld inspection, lowering, backfill, crossings (trenchless, HDD), casings and final inspection
- Corrosion protection - external coatings and cathodic protection principles for long‑term integrity
- Station pipework and interfaces - mechanical requirements for station pipework, layout and interaction with onshore pipeline sections
- Operational considerations - pigging suitability, venting/recompression/flaring arrangements, valve spacing and land/geotechnical studies
- Quality, safety and environment - quality management systems, routing surveys and environmental impact assessment
Applications and users
This standard is intended for practical use in:
- Pipeline designers and engineering consultants preparing high‑pressure pipeline designs
- Asset owners and operators responsible for construction, commissioning and operation of onshore gas pipelines (>16 bar)
- Construction contractors and welding/fabrication teams working on steel pipeline systems
- Regulators, inspection bodies and maintenance teams verifying compliance and integrity
Typical applications include new pipeline design and construction, repurposing existing steel pipelines, station pipework design and cross‑sectoral planning for high‑pressure gas transport.
Related standards
- EN 12732 (welding requirements)
- Functional station standards: EN 1776, EN 1918‑5, EN 12186, EN 12583
- CEN/TR 13737 clarifies national legislation and precedence of more restrictive national requirements.
EN 1594:2024 provides the common, practical framework for safe, reliable onshore high‑pressure pipeline infrastructure and should be applied alongside applicable national codes and regulations.
Frequently Asked Questions
SIST EN 1594:2024 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements". This standard covers: This document describes the functional requirements for pipelines for maximum operating pressure over 16 bar. This document also describes the mechanical requirements for pipework in stations with a maximum operating pressure greater than 16 bar. NOTE 1 Welding requirements are described in EN 12732. Functional requirements for stations are given in EN 1776, EN 1918-5, EN 12186, and EN 12583. This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures, where the following applies: - onshore: - from the point where the pipeline first crosses what is normally accepted as battery limit between onshore and offshore, and that is not located within commercial or industrial premises as an integral part of the industrial process on these premises except for any pipelines and facilities supplying such premises; - pipeline system with a starting point onshore, also when parts of the pipeline system on the mainland subsequently cross fjords, lakes, etc. - high pressure: gas with a maximum operating pressure over 16 bar and a design temperature between −40 °C and 120 °C. - steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves, couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon steel and joined by welds, flanges or mechanical couplings. - gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where technical evaluation has ensured that operating conditions or constituents or properties of the gas do not affect the safe operation of the pipeline. Gas infrastructures covered by this document begin after the gas producer's metering station. NOTE 2 The functional demarcation of the pipeline system is usually directly after an isolating valve of the installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually located on an isolating valve of the installation, but can differ in particular situations. A schematic representation of pipelines for gas infrastructure is given in Figure 1. This document can also be applied to the repurposing of existing pipelines. [Figure 1 - Schematic representation of pipelines for gas supply over 16 bar] This document specifies common basic principles for gas infrastructure. Users of this standard are expected to be aware that more detailed national standards and/or code of practice can exist in the CEN member countries. This document 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 standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737. CEN/TR 13737 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.
This document describes the functional requirements for pipelines for maximum operating pressure over 16 bar. This document also describes the mechanical requirements for pipework in stations with a maximum operating pressure greater than 16 bar. NOTE 1 Welding requirements are described in EN 12732. Functional requirements for stations are given in EN 1776, EN 1918-5, EN 12186, and EN 12583. This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures, where the following applies: - onshore: - from the point where the pipeline first crosses what is normally accepted as battery limit between onshore and offshore, and that is not located within commercial or industrial premises as an integral part of the industrial process on these premises except for any pipelines and facilities supplying such premises; - pipeline system with a starting point onshore, also when parts of the pipeline system on the mainland subsequently cross fjords, lakes, etc. - high pressure: gas with a maximum operating pressure over 16 bar and a design temperature between −40 °C and 120 °C. - steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves, couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon steel and joined by welds, flanges or mechanical couplings. - gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where technical evaluation has ensured that operating conditions or constituents or properties of the gas do not affect the safe operation of the pipeline. Gas infrastructures covered by this document begin after the gas producer's metering station. NOTE 2 The functional demarcation of the pipeline system is usually directly after an isolating valve of the installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually located on an isolating valve of the installation, but can differ in particular situations. A schematic representation of pipelines for gas infrastructure is given in Figure 1. This document can also be applied to the repurposing of existing pipelines. [Figure 1 - Schematic representation of pipelines for gas supply over 16 bar] This document specifies common basic principles for gas infrastructure. Users of this standard are expected to be aware that more detailed national standards and/or code of practice can exist in the CEN member countries. This document 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 standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737. CEN/TR 13737 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.
SIST EN 1594:2024 is classified under the following ICS (International Classification for Standards) categories: 23.040.01 - Pipeline components and pipelines in general; 75.200 - Petroleum products and natural gas handling equipment; 91.140.40 - Gas supply systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 1594:2024 has the following relationships with other standards: It is inter standard links to SIST EN 1594:2013, SIST EN 1594:2024/oprA1:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 1594:2024 is associated with the following European legislation: EU Directives/Regulations: TP075; Standardization Mandates: M/017, M/617. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase SIST EN 1594:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2024
Nadomešča:
SIST EN 1594:2013
Infrastruktura za plin - Cevovodni sistemi za najvišji delovni tlak nad 16 bar -
Funkcionalne zahteve
Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional
requirements
Gasinfrastruktur - Rohrleitungen für einen maximal zulässigen Betriebsdruck über 16 bar
- Funktionale Anforderungen
Infrastructures gazières - Canalisation pour pression maximale de service supérieure à
16 bar - Prescriptions fonctionnelles
Ta slovenski standard je istoveten z: EN 1594:2024
ICS:
91.140.40 Sistemi za oskrbo s plinom Gas supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 1594
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2024
EUROPÄISCHE NORM
ICS 23.040.01; 75.200 Supersedes EN 1594:2013
English Version
Gas infrastructure - Pipelines for maximum operating
pressure over 16 bar - Functional requirements
Infrastructures gazières - Canalisation pour pression Gasinfrastruktur - Rohrleitungen für einen maximal
maximale de service supérieure à 16 bar - zulässigen Betriebsdruck über 16 bar - Funktionale
Prescriptions fonctionnelles Anforderungen
This European Standard was approved by CEN on 1 October 2023.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1594:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 6
Introduction . 8
1 Scope . 9
2 Normative references . 11
3 Terms and definitions . 13
4 Quality and management systems . 18
5 Safety and the environment . 19
5.1 General. 19
5.2 Appropriate safety measures . 19
5.3 Routing considerations . 20
5.3.1 General. 20
5.3.2 Surveys. 20
5.3.3 Environmental impact . 20
5.3.4 Ground conditions . 21
5.4 Line valve spacing . 21
6 Pressure safety . 21
6.1 Pressure levels . 21
6.2 Normal operation . 22
6.3 Requirements for installation of pressure safety devices . 22
6.4 Pipeline with DP equal to or less than 40 bar and hoop stress ≤ 0,45 R . 23
t0,5
6.5 Pipeline with DP equal to or less than 24 bar and hoop stress ≤ 0,30 R . 23
t0,5
7 Design . 23
7.1 General. 23
7.1.1 Design principles . 23
7.1.2 Basis of design . 23
7.2 Wall thickness determination . 24
7.2.1 Straight pipe . 24
7.2.2 Bends and elbows . 25
7.3 Additional design requirements . 25
7.3.1 Forces . 25
7.3.2 Soil engineering data required . 26
7.3.3 Structural models for pipeline sections. 26
7.4 Analysis of stress and strain . 27
7.4.1 Elastic and extended elastic design . 27
7.4.2 Limit state design . 28
7.5 Design report . 29
7.6 Land management and geotechnical studies . 30
7.7 Depth of cover . 30
7.8 Casing pipes . 30
7.9 Station design . 31
7.9.1 Layout . 31
7.9.2 Components . 32
7.9.3 Interaction with onshore pipeline section . 32
7.9.4 Station pipework . 33
7.10 Pipeline components . 33
7.11 Pigging suitability . 33
7.12 Arrangements for venting, recompression and flaring . 33
7.13 Corrosion protection . 34
7.13.1 General . 34
7.13.2 External coating . 34
7.13.3 Cathodic protection . 35
7.14 Grid connections . 35
8 Materials and components . 36
8.1 General . 36
8.1.1 Base material . 36
8.1.2 Manufacturing requirements . 36
8.1.3 Manufacturing procedure. 36
8.1.4 Weldability . 36
8.1.5 Mechanical properties . 37
8.1.6 Inspection documents . 38
8.1.7 Other steel types or grades . 38
8.1.8 Records . 38
8.2 Pipes . 38
8.3 Fittings . 39
8.3.1 General . 39
8.3.2 Manufacturing. 39
8.4 Flanged connections . 39
8.5 Insulating connections . 39
8.5.1 Type test . 39
8.5.2 Strength test . 39
8.5.3 Electrical test . 40
8.5.4 External tightness test . 40
8.6 Valves . 40
8.7 External and internal coatings . 40
8.8 Welding end preparation . 40
9 Construction . 40
9.1 General . 40
9.2 Execution of work . 40
9.2.1 General . 40
9.2.2 Marking out the site . 40
9.2.3 Initial site inspections . 41
9.2.4 Working strip . 41
9.2.5 Separation of topsoil . 41
9.2.6 Trenches . 41
9.2.7 Crossing and proximity of buried structures (cables and pipes) . 42
9.2.8 Handling and stringing . 42
9.2.9 Bends . 43
9.2.10 Welding and weld examination . 43
9.2.11 External coating . 43
9.2.12 Lowering into the trench . 46
9.2.13 Ballasting and anchoring . 46
9.2.14 Tie-ins . 46
9.2.15 Backfill . 46
9.2.16 Reinstatement . 47
9.2.17 Markings . 47
9.2.18 Final site inspection with owners and users . 47
9.3 Special crossings . 47
9.3.1 General. 47
9.3.2 Open-trench road or path crossings . 47
9.3.3 Trenchless crossings . 48
9.3.4 Requirements for casings . 51
9.3.5 Open trench major water crossings . 51
9.3.6 Horizontal directional drilling . 51
9.4 Cleaning . 52
9.5 Testing . 52
9.5.1 General. 52
9.5.2 Test preparation . 53
9.5.3 Strength test . 53
9.5.4 Tightness test . 53
9.5.5 Pre-testing . 54
9.5.6 Dewatering . 54
9.5.7 Golden welds . 54
9.6 Acceptance. 54
9.6.1 As-built documents . 54
9.6.2 Pre-commissioning . 54
9.6.3 Handover and documentation . 55
10 Operation and maintenance . 55
10.1 General. 55
10.1.1 Policy . 55
10.1.2 Safety and environment . 55
10.2 Organization . 55
10.3 Operating and maintenance instructions . 56
10.4 Emergency plan . 57
10.5 Records and documentation . 57
10.6 Commissioning . 57
10.7 Decommissioning . 58
10.8 Recommissioning . 58
10.9 Maintenance, modification, and repair . 58
10.9.1 General. 58
10.9.2 Pipeline surveillance, inspection and monitoring . 58
10.9.3 Execution of repairs and modifications . 59
10.9.4 Work involving cutting of the pipeline . 59
10.9.5 Work on in-service pipelines . 59
10.9.6 Repairs after emergency . 60
10.9.7 Other and special maintenance activities . 60
10.10 Introduction of hydrogen in existing natural gas pipelines . 61
10.11 Abandonment and removal . 61
Annex A (normative) Requirements for fracture arrest of line pipe . 62
A.1 General. 62
A.2 CVN impact test . 63
A.3 Drop weight tear test . 65
A.4 Test pieces, method, and frequency for CVN and DWT tests . 65
Annex B (informative) Hydrogen gas pipelines . 66
B.1 General. 66
B.2 New pipelines . 66
B.3 Existing pipelines . 66
B.4 Other considerations . 67
Bibliography . 68
European foreword
This document (EN 1594:2024) has been prepared by Technical Committee CEN/TC 234 “Gas
infrastructure”, the secretariat of which 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 September 2024, and conflicting national standards shall
be withdrawn at the latest by September 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1594:2013.
The main changes between this document and the previous edition EN 1594:2013 are as follows:
— addition of supplements with respect to available technologies, like aspects of pipeline inspection,
corrosion protection, aspects of gases with low ignition energy considered such as hydrogen;
— restructuring and rephrasing of scope to improve understanding (Clause 1);
— update of references to other documents (Clause 2 and Bibliography);
— revision of terms and definitions including clarification of substance ‘gas’ (Clause 3).
— addition of arrangements for venting, recompression and flaring (Clause 7);
— adjustment of minimum impact energy values to appropriate safety values (Clause 8);
— removal of all annexes, because they were outdated and considered covered in other European
standards;
— addition of new normative annex with requirements for fracture arrest of line pipe (Annex A),
adopted from EN ISO 3183:2012 as they were taken out in the current edition of EN ISO 3183
(published in 2019);
— addition of new informative with recommendations related to hydrogen pipelines (Annex B).
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
There is a complete suite of functional standards prepared by CEN/TC 234 “Gas infrastructure” to cover
all parts of the gas infrastructure 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.
Conformance to this document ensures the interoperability, safety and reliability requirements of
pipeline systems.
Directive 2009/73/EC concerning common rules for the internal market in natural gas and the related
Regulation (EC) No 715/2009 on conditions for access to the natural gas transmission networks also aim
at technical safety (security) including technical reliability of the European gas system. These aspects and
Directive (EU) 2018/2001 on the promotion of the use of energy from renewable sources are also in the
scope of CEN/TC 234 standardization. In this respect, CEN/TC 234 evaluated the indicated EU legislation
and amended this document accordingly, where required and appropriate.
CEN/TC 234 will continue its work updating this document to the latest developments at regular
intervals.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
This document describes the general functional requirements for gas supply through pipe systems and
covers the pressure range greater than 16 bar maximum operating pressure for steel systems. It gives
normative and informative references for safe and secure gas infrastructure. It applies to their design,
construction, operation and the related aspects of safety, environment and public health, all in order to
provide a safe and secure supply of gas.
The requirements of this document are based on safe gas engineering practice under conditions normally
encountered in the gas industry. Requirements for all unusual conditions cannot be specifically provided
for, nor are all engineering and construction details prescribed.
Existing industrial safety regulations applying to work areas, safety devices and safe work practices are
not intended to be supplanted by this document.
Managers with responsibilities for the design, construction and operation of gas infrastructure will have
regard to the guidance given in this document and to other relevant standards. It is the responsibility of
these managers and engineers to apply these functional requirements, supplemented with other proven
good practice to the particular circumstances of all gas infrastructures.
The designer, constructor or operator of pipeline systems is cautioned that this document is not a design
handbook or code of practice. Additional national or company standards describing the details are
needed. These detailed standards should be in line with the basic principles of this document.
In preparing this document it was recognized that the suite of relevant European standards is incomplete.
Where appropriate, reference is made to international, national or other standards until relevant
European standards are available.
In preparing this document, a basic understanding of gas supply by the user has been assumed. Gas
infrastructure is complex and the importance on 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 recognized standards of gas engineering and specific requirements imposed
by legal structures of these member countries.
1 Scope
This document describes the functional requirements for pipelines for maximum operating pressure over
16 bar. This document also describes the mechanical requirements for pipework in stations with a
maximum operating pressure greater than 16 bar.
NOTE 1 Welding requirements are described in EN 12732. Functional requirements for stations are given in
EN 1776, EN 1918-5, EN 12186, and EN 12583.
This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures,
where the following applies:
— onshore:
— from the point where the pipeline first crosses what is normally accepted as battery limit
between onshore and offshore, and that is not located within commercial or industrial premises
as an integral part of the industrial process on these premises except for any pipelines and
facilities supplying such premises;
— pipeline system with a starting point onshore, also when parts of the pipeline system on the
mainland subsequently cross fjords, lakes, etc.;
— high pressure: gas with a maximum operating pressure over 16 bar and a design temperature
between −40 °C and 120 °C;
— steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves,
couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon
steel and joined by welds, flanges or mechanical couplings;
— gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where
technical evaluation has ensured that operating conditions or constituents or properties of the gas
do not affect the safe operation of the pipeline.
Gas infrastructures covered by this document begin after the gas producer's metering station.
NOTE 2 The functional demarcation of the pipeline system is usually directly after an isolating valve of the
installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually
located on an isolating valve of the installation, but can differ in particular situations.
A schematic representation of pipelines for gas infrastructure is given in Figure 1.
This document can also be applied to the repurposing of existing pipelines.
Key
Symbols Stations
pipelines covered by this document 1 P – well, production
pipelines not covered by this document 2 T – treatment
pressure regulation 3 D – odorization
pressure safety system 4 S 1 – gas receiving
metering, gas analysis and sampling 5 S 2 – valve station
system
compression 6 S 3 – delivery station
valve 7 S 4 – compressor station
isolation device 8 S 5 – other supply (e.g. for blending)
9 S 6 – export or import (e.g. storage and
neighbouring network)
10 S 7 – pressure regulating
11 S 8 – domestic distribution
12 S 9 – industrial distribution
13 S 10 – storage
Figure 1 — Schematic representation of pipelines for gas supply over 16 bar
This document specifies common basic principles for gas infrastructure. Users of this standard are
expected to be aware that more detailed national standards and/or code of practice can exist in the CEN
member countries.
This document 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 standard, the national legislation/regulation takes precedence as illustrated in
CEN/TR 13737.
CEN/TR 13737 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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1092-1, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN
designated — Part 1: Steel flanges
EN 1514 (all parts), Flanges and their joints — Dimensions of gaskets for PN-designated flanges
EN 1515-2, Flanges and their joints — Bolting — Part 2: Classification of bolt materials for steel flanges, PN
designated
EN 1515-3, Flanges and their joints — Bolting — Part 3: Classification of bolt materials for steel flanges,
class designated
EN 1515-4, Flanges and their joints — Bolting — Part 4: Selection of bolting for equipment subject to the
Pressure Equipment Directive 2014/68/EU
EN 1759-1, Flanges and their joint — Circular flanges for pipes, valves, fittings and accessories, Class
designated — Part 1: Steel flanges, NPS 1/2 to 24
EN 1998-4, Eurocode 8 — Design of structures for earthquake resistance — Part 4: Silos, tanks and pipelines
EN 10204, Metallic products — Types of inspection documents
EN 10289, Steel tubes and fittings for onshore and offshore pipelines — External liquid applied epoxy and
epoxy-modified coatings
EN 10290, Steel tubes and fittings for onshore and offshore pipelines — External liquid applied
polyurethane and polyurethane-modified coatings
EN 12186, Gas infrastructure — Gas pressure regulating stations for transmission and distribution —
Functional requirements
EN 12327, Gas infrastructure — Pressure testing, commissioning and decommissioning procedures —
Functional requirements
EN 12560-1, Flanges and their joints — Gaskets for Class-designated flanges — Part 1: Non-metallic flat
gaskets with or without inserts
EN 12560-2, Flanges and their joints — Dimensions of gaskets for Class-designated flanges — Part 2: Spiral
wound gaskets for use with steel flanges
EN 12560-3, Flanges and their joints — Gaskets for Class-designated flanges — Part 3: Non-metallic PTFE
envelope gaskets
EN 12560-4, Flanges and their joints — Gaskets for Class-designated flanges — Part 4: Corrugated, flat or
grooved metallic and filled metallic gaskets for use with steel flanges
EN 12560-5, Flanges and their joints — Gaskets for Class-designated flanges — Part 5: Metallic ring joint
gaskets for use with steel flanges
EN 12560-6, Flanges and their joints — Gaskets for Class-designated flanges — Part 6: Covered serrated
metal gaskets for use with steel flanges
EN 12583, Gas Infrastructure — Compressor stations — Functional requirements
EN 12732, Gas infrastructure — Welding steel pipework — Functional requirements
EN 14141, Valves for natural gas transportation in pipelines — Performance requirements and tests
EN ISO 3183:2019, Petroleum and natural gas industries — Steel pipe for pipeline transportation systems
(ISO 3183:2019)
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1)
EN ISO 12944-1, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 1: General introduction (ISO 12944-1)
EN ISO 12944-2, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 2: Classification of environments (ISO 12944-2)
EN ISO 12944-3, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 3: Design considerations (ISO 12944-3)
EN ISO 12944-4, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 4: Types of surface and surface preparation (ISO 12944-4)
EN ISO 12944-5, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 5: Protective paint systems (ISO 12944-5)
EN ISO 12944-6, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 6: Laboratory performance test methods (ISO 12944-6)
EN ISO 12944-7, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 7: Execution and supervision of paint work (ISO 12944-7)
EN ISO 12944-8, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 8: Development of specifications for new work and maintenance (ISO 12944-8)
EN ISO 15741, Paints and varnishes — Friction-reduction coatings for the interior of on- and offshore steel
pipelines for non-corrosive gases (ISO 15741)
EN ISO 15589-1, Petroleum, petrochemical and natural gas industries — Cathodic protection of pipeline
systems — Part 1: On-land pipelines (ISO 15589-1)
EN ISO 21809-1, Petroleum and natural gas industries — External coatings for buried or submerged
pipelines used in pipeline transportation systems — Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)
(ISO 21809-1)
EN ISO 21809-2, Petroleum and natural gas industries — External coatings for buried or submerged
pipelines used in pipeline transportation systems — Part 2: Single layer fusion-bonded epoxy coatings
(ISO 21809-2)
EN ISO 21809-3, Petroleum and natural gas industries — External coatings for buried or submerged
pipelines used in pipeline transportation systems — Part 3: Field joint coatings (ISO 21809-3)
ASME B16.20, Metallic gaskets for pipe flanges
ASME B16.47, Large Diameter Steel Flanges: NPS 26 through NPS 60, Metric/Inch Standard
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
abandonment
permanent decommissioning where a pipeline or a pipeline section is physically isolated from the gas
pipeline system
3.2
battery limit
defined boundary between two areas of responsibility, which can be physical or represented by a map
coordinate
Note 1 to entry: Physical boundary can be an isolating valve, a flange on a pipe or a geographic point on a pipeline.
3.3
casing
protection by means of a construction around the pipeline in order to prevent external loads, or third-
party interference
3.4
commissioning
activities required to pressurise pipework, stations, equipment and assemblies with gas and to put them
into operation
3.5
control zone
strip of land along the pipeline over which the pipeline operator has a right to control activities
3.6
decommissioning
activities required to take out of service any pipework, station, equipment or assemblies filled with gas
and to disconnect them from the system
3.7
design factor
f
o
factor applied when calculating minimum wall thickness or design pressure
3.8
desig
...
SIST EN 1594:2024は、最大運転圧力16バールを超えるガスインフラストラクチャ用のパイプラインに関する機能要求事項を詳述した重要な文書です。本標準は、オフショアとオンショアの境界を超えるパイプラインシステムに適用される機能要件を網羅しており、特に高圧ガスの安全かつ効率的な輸送を確保するための基本原則が示されています。 本標準の強みは、その包括的な適用範囲にあります。パイプラインは高圧（最大運転圧力16バール超）のガスを対象としており、送gasガスの酸化防止性を保証した上での設計が求められています。また、低合金炭素鋼製の構成要素で作られたパイプラインインフラストラクチャを対象とし、溶接やフランジ、機械的結合を通じて部品が結合される必要があります。これにより、ガスの輸送に際する安全性が飛躍的に向上します。 さらに、この文書は既存のパイプラインの再利用にも適用可能で、持続可能なインフラの管理に貢献します。パイプラインシステムの機能的な境界が、通常は開閉弁の直後に設けられることが示されており、状況に応じて柔軟に対応できる規定も含まれています。これにより、特定の条件下でも適切な機能を維持するための基準が設けられており、利用者にとってメリットとなります。 この標準は、CENメンバー国における詳細な国家基準や実務指針と連携して使用されることを想定しており、国ごとに異なる厳しい要件への対処も考慮されています。国家法令が本標準よりも厳しい要求を定めている場合には、国家法令が優先されることが明記されており、実施における法的リスクを低減します。 SIST EN 1594:2024は、技術的評価を通じてガスの運用条件が安全性に影響を与えないことを保証するガス輸送の枠組みを確立しており、高圧ガスのパイプラインインフラストラクチャの設計、運用、保守における信頼性を向上させる上で不可欠な標準です。この文書は、ガス業界における安全かつ効率的な運用を支える基盤となることが期待されます。
Die SIST EN 1594:2024 ist ein wesentlicher Standard, der die funktionalen Anforderungen an Pipelines für Gasinfrastrukturen mit einem maximalen Betriebsdruck von über 16 bar definiert. Dieser Standard ist von großer Bedeutung für die Sicherheit und Effizienz beim Transport von Gas über Onshore-Hochdruckstahlpipeline-Infrastrukturen. Der Umfang des Dokuments umfasst nicht nur die funktionalen Anforderungen für die Pipeline, sondern auch die mechanischen Anforderungen für Rohrleitungen in Stationen, die einem maximalen Betriebsdruck von über 16 bar ausgesetzt sind. Besonders hervorzuheben ist, dass es spezifische Vorgaben für den Umgang mit nicht korrosivem Erdgas, Biomethan und Wasserstoffgas gibt, was die Relevanz des Standards in einem sich schnell entwickelnden Energiesektor unterstreicht. Eine der Stärken der SIST EN 1594:2024 ist die klare Abgrenzung der Anwendungsbereiche, insbesondere in Bezug auf den Beginn der Gasinfrastruktur, die nach dem Messstation des Gasproduzenten anfängt. Diese Klarheit ist entscheidend, um Missverständnisse und potenzielle Sicherheitsrisiken zu minimieren. Außerdem ermöglicht der Standard die Anwendung auf die Umnutzung bestehender Pipelines, was ihn besonders flexibel und anpassungsfähig in Bezug auf die wechselnden Anforderungen der Industrie macht. Ein weiterer wichtiger Aspekt ist die Zusammenarbeit mit nationalen Standards und Regelungen. Die SIST EN 1594:2024 betont die Notwendigkeit, sich über mögliche abweichende nationale Vorgaben bewusst zu sein und in Konfliktfällen die nationale Gesetzgebung vorrangig zu behandeln. Dies gewährleistet, dass alle sicherheitsrelevanten Aspekte in den verschiedenen CEN-Mitgliedsstaaten angemessen berücksichtigt werden. Insgesamt stellt dieser Standard einen integralen Bestandteil des gastechnischen Sicherheitsmanagements dar, indem er dafür sorgt, dass die Pipelines nicht nur den technischen Anforderungen genügen, sondern auch sicher und effizient betrieben werden können. Die SIST EN 1594:2024 ist somit ein unverzichtbares Dokument für alle, die im Bereich Gasinfrastruktur tätig sind und stellt sicher, dass die höchsten Sicherheitsstandards eingehalten werden.
La norme SIST EN 1594:2024 définit les exigences fonctionnelles pour les pipelines à haute pression, spécifiquement pour ceux ayant une pression de service maximale supérieure à 16 bar. Son champ d'application est très pertinent dans le contexte actuel où les infrastructures gazières doivent répondre à des standards de sécurité et de performance stricts. Un des points forts de cette norme est qu'elle aborde non seulement les exigences fonctionnelles des pipelines, mais également les exigences mécaniques pour les installations associées. Cela garantit une approche intégrée pour la conception des infrastructures gazières, en s'assurant que chaque composant, depuis les tuyaux jusqu'aux robinets et accouplements, respecte des critères de sécurité rigoureux. La norme se concentre sur les pipelines en acier destinés au transport de gaz non corrosif, notamment le gaz naturel, le biométhane et l'hydrogène, ce qui souligne sa pertinence par rapport à l'évolution vers des sources d'énergie plus durables. Elle définit clairement les types de gaz couverts et précise que la température de conception doit se situer entre -40 °C et 120 °C, ce qui est crucial pour l'évaluation de la performance dans diverses conditions climatiques. Un autre aspect fort de cette norme est qu'elle est conçue pour être appliquée en complément des normes nationales existantes, ce qui permet aux utilisateurs d'adapter les exigences de SIST EN 1594:2024 aux spécificités locales tout en s'assurant de respecter des principes de base communs. Cette flexibilité est essentielle dans un environnement réglementaire en constante évolution. Enfin, la capacité de la norme à s'appliquer à la réutilisation des pipelines existants montre son adaptabilité et sa pertinence dans le cadre d'une gestion durable des infrastructures gazières. Cela permet d'optimiser les ressources et de réduire l'impact environnemental tout en garantissant la sécurité et l'efficacité des systèmes de transport de gaz. En résumé, la norme SIST EN 1594:2024 est une référence complète et pertinente pour toute entreprise ou organisation travaillant avec des infrastructures gazières à haut débit. Elle établit des exigences claires qui favorisent la sécurité, la durabilité et la performance de ces systèmes critiques.
The SIST EN 1594:2024 standard outlines comprehensive functional requirements for pipelines that operate under maximum pressures exceeding 16 bar, specifically tailored for gas infrastructure. The standard's scope is well-defined, addressing key elements such as operational parameters, mechanical requirements, and applicable gas types. It pertains to onshore high-pressure steel pipeline infrastructures, effectively categorizing under which conditions the pipelines operate, and it also incorporates station pipework specifications. One of the significant strengths of this standard is its inclusion of specific conditions for gas transportation, detailing not only the operational pressures and temperature ranges but also the types of steel materials permitted. This clarity ensures that the infrastructures are developed with safety and performance in mind. The focus on unalloyed and low alloyed carbon steel components heightens the standard's relevance in maintaining the integrity and safety of gas transportation systems while also allowing for the sustainability of existing pipeline infrastructure through repurposing guidelines. Moreover, the standard takes into account the diverse forms of gas, including natural gas, biomethane, and hydrogen blends, indicating a forward-thinking approach towards the evolving landscape of energy transmission. The requirement for technical evaluations of gas properties to ensure compatibility with pipeline operations further underscores its commitment to safety and functionality. A noteworthy aspect of SIST EN 1594:2024 is its provision for harmonization with national standards. It acknowledges the potential existence of more stringent national legislations and regulations, clarifying that in instances of conflict, national laws prevail. This flexibility facilitates the standard's adoption across various jurisdictions while allowing room for local regulations, which enhances its usability and relevance in different member countries of the CEN. Overall, the SIST EN 1594:2024 standard stands out for its well-structured framework for managing the functional complexities of high-pressure gas pipelines, thereby ensuring operational efficiency and safety in gas infrastructure systems. The schematic representation of pipeline systems serves as a practical guide, further enriching the utility of this document for practitioners in the field.
SIST EN 1594:2024 표준은 최대 운영 압력이 16bar을 초과하는 가스 파이프라인에 대한 기능적 요구 사항을 정의하고 있습니다. 이 문서는 고압 강철 파이프라인 인프라를 통한 가스 수송을 위한 필수적 기준을 제시하며, 이는 안전하고 신뢰성 있는 가스 공급을 보장하는 데 필수적입니다. 이 표준의 강점 중 하나는 고압 가스의 안전한 운송을 보장하기 위해 필요한 명확한 기능적 요구 사항을 나열하고 있다는 것입니다. 강철 파이프라인 인프라는 비부식성 천연가스, 바이오메탄, 수소 및 이들 가스의 혼합물을 포함하는 다양한 가스를 운송할 수 있도록 설계되어 있으며, 이 과정에서 가스의 안전한 운영 조건을 보장하고 있습니다. 또한, SIST EN 1594:2024는 파이프라인의 기능적 경계에 대한 명확한 설명을 제공하며, 이는 특히 고압 시설에 대한 기계적 요구 사항과 관련하여 유용합니다. 이 문서는 기존 파이프라인의 재사용에도 적용 가능하여, 지속 가능한 개발을 지원합니다. 이 표준은 사용자들에게 CEN 회원국 내의 더 상세한 국가 표준이나 운용 규칙이 존재할 수 있다는 점을 인지하고, 이를 기반으로 기본 원칙을 설정하도록 기대하고 있습니다. 나아가, CEN/TR 13737에 따라 국가 법령이 더 엄격한 요구사항을 적용할 경우, 해당 법령이 우선 적용됨을 명시하여 국내 법이 준수되어야 함을 강조합니다. 결론적으로, SIST EN 1594:2024는 고압 가스 파이프라인의 안전한 설계와 운영을 위한 필수적인 가이드라인을 제공하며, 관련 업계에 큰 도움이 될 것입니다. 이를 통해 가스 인프라의 효율성과 안전성을 높일 수 있는 기초를 마련하고 있습니다.
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