EN 1474-2:2020

Installation and equipment for liquefied natural gas - Design and testing of marine transfer systems - Part 2: Design and testing of transfer hoses

This European Standard gives general guidelines for the design, material selection, qualification, certification, and testing details for Liquefied Natural Gas (LNG) transfer hoses for offshore transfer or on coastal weather-exposed facilities for aerial, floating and submerged configurations or a combination of these. Whilst this European Standard is applicable to all LNG hoses, it is acknowledged that there may be further specific requirements for floating and submerged hoses.
The transfer hoses will be designed to be part of transfer systems (it means that they will be fitted with ERS, QCDC, handling systems, hydraulic and electric components etc.) To avoid unnecessary repetition, cross-references to EN 1474-1 and EN 1474-3, are made for all compatible items, and for references, definitions and abbreviations. Where additional references, definitions and abbreviations are required specifically for LNG hoses, they are listed in this European Standard.
Transfer hoses need to be durable when operating in the marine environment and to be flexible with a minimum bending radius compatible with handling and the operating requirements of the transfer system.

Anlagen und Ausrüstung für Flüssigerdgas - Auslegung und Prüfung von Schiffsübergabesystemen - Teil 2: Auslegung und Prüfung von Übergabeschläuchen

Dieses Dokument gibt generelle Leitlinien für die Auslegung, Werkstoffauswahl, Eignung, Zertifizierung und Prüfdetails für Schlauchleitungen für Flüssigerdgas (LNG, en: liquified natural gas) für die Übergabe auf See.
Die Übergabeschlauchleitungen werden als Teil eines Übergabesystems ausgelegt (d. h., sie können mit ERS [en: emergency release system], QCDC [en: quick connect disconnect coupler], Handhabungssystemen, hydraulischen und elektrischen Bauteilen usw. ausgerüstet sein). Zur Vermeidung von unnötigen Wiederholungen wird für alle vergleichbaren Gegenstände, für Definitionen und Abkürzungen auf EN ISO 16904 und EN 1474 3 verwiesen. Sofern zusätzliche Verweise, Definitionen und Abkürzungen für LNG-Schlauchleitungen benötigt werden, sind sie in dieser Europäischen Norm aufgeführt.

Installations et équipements de gaz naturel liquéfié - Conception et essais des systèmes de transfert marins - Partie 2 : Conception et essais des flexibles de transfert

Le présent document fournit des lignes directrices générales relatives à la conception, au choix des matériaux, à la qualification, à la certification et aux détails des essais concernant les flexibles destinés aux applications de transfert marin de gaz naturel liquéfié (GNL).
Les flexibles de transfert font partie intégrante des systèmes de transfert (ce qui signifie qu’ils peuvent être équipés d’ERS, de QCDC, de systèmes de manutention, de composants hydrauliques et électriques, etc.). Afin d’éviter toute répétition inutile, les références à l’EN ISO 16904 et à l’EN 1474-3 sont valables pour tous les éléments compatibles, ainsi que pour les références, définitions et abréviations. Si des références, des définitions et des abréviations supplémentaires sont spécifiquement nécessaires pour les tuyaux flexibles de GNL, elles sont énumérées dans la présente Norme européenne.

Napeljave in oprema za utekočinjeni zemeljski plin - Načrtovanje in preskušanje obalnih pretakališč - 2. del: Načrtovanje in preskušanje cevi za pretakanje

Ta evropski standard določa splošne smernice za načrtovanje, izbiro materialov, kvalifikacijo, certificiranje in podrobnosti o preskušanju cevi za pretakanje utekočinjenega zemeljskega plina (LNG) za pretakanje po morju ali na obalnih vremensko izpostavljenih objektih za zračne, plavajoče ali potopljene konfiguracije oziroma njihovo kombinacijo. Čeprav se ta evropski standard uporablja za vse cevi za pretakanje utekočinjenega zemeljskega plina, lahko za plavajoče in potopljene cevi veljajo dodatne posebne zahteve.
Cevi za pretakanje bodo zasnovane kot del pretočnih sistemov (kar pomeni, da bodo opremljene z električnimi rotacijskimi stroji (ERS), hidravlično upravljanimi hitrimi spojkami (QCDS), sistemi za upravljanje, hidravličnimi in električnimi komponentami itd.). V izogib nepotrebnemu ponavljanju so navedena navzkrižna sklicevanja na standard EN 1474-1 in EN 1474-3 za vse združljive elemente in za reference, definicije in okrajšave. Če se za cevi za utekočinjeni zemeljski plin zahteva dodatne reference, definicije in okrajšave, so te navedene v tem evropskem standardu.
Cevi za pretakanje morajo biti trpežne, če so nameščene v morskem okolju in prilagodljive z najmanjšim polmerom upogibanja, ki izpolnjuje zahteve za upravljanje in delovanje pretočnega sistema.

General Information

• Status: Published
• Publication Date: 29-Sep-2020
• Withdrawal Date: 30-Mar-2021
• ICS: 75.200 - Petroleum products and natural gas handling equipment
• Technical Committee: CEN/TC 282 - Installation and equipment for LNG
• Drafting Committee: CEN/TC 282/WG 1 - Ship to shore interface
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 30-Sep-2020
• Due Date: 08-Nov-2020
• Completion Date: 30-Sep-2020
• Ref Project: SIST EN 1474-2:2020 - Installation and equipment for liquefied natural gas - Design and testing of marine transfer systems - Part 2: Design and testing of transfer hoses

Relations

• Replaces: EN 1474-2:2008 - Installation and equipment for liquefied natural gas - Design and testing of marine transfer systems - Part 2: Design and testing of transfer hoses
• Effective Date: 23-May-2018
• Corrected By: EN 1474-2:2020/AC:2023 - Installation and equipment for liquefied natural gas - Design and testing of marine transfer systems - Part 2: Design and testing of transfer hoses
• Effective Date: 28-Sep-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2020
Nadomešča:
SIST EN 1474-2:2009
Napeljave in oprema za utekočinjeni zemeljski plin - Načrtovanje in preskušanje
obalnih pretakališč - 2. del: Načrtovanje in preskušanje cevi za pretakanje
Installation and equipment for liquefied natural gas - Design and testing of marine
transfer systems - Part 2: Design and testing of transfer hoses
Anlagen und Ausrüstung für Flüssigerdgas - Auslegung und Prüfung von
Schiffsübergabesystemen - Teil 2: Auslegung und Prüfung von Übergabeschläuchen
Installations et équipements de gaz naturel liquéfié - Conception et essais des systèmes
de transfert marins - Partie 2: Conception et essais des tuyaux de transfert
Ta slovenski standard je istoveten z: EN 1474-2:2020
ICS:
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 1474-2
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 75.200 Supersedes EN 1474-2:2008
English Version
Installation and equipment for liquefied natural gas -
Design and testing of marine transfer systems - Part 2:
Design and testing of transfer hoses
Installations et équipements de gaz naturel liquéfié - Anlagen und Ausrüstung für Flüssigerdgas - Auslegung
Conception et essais des systèmes de transfert marins - und Prüfung von Schiffsübergabesystemen - Teil 2:
Partie 2 : Conception et essais des flexibles de transfert Auslegung und Prüfung von Übergabeschläuchen
This European Standard was approved by CEN on 19 July 2020.

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, Turkey 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1474-2:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
3.1 Terms and Definitions . 5
3.2 Abbreviations . 10
4 Applications and Qualification Categories . 10
4.1 Applications . 10
4.2 Qualification Categories . 10
5 Description of typical LNG transfer hose assembly designs and accessories . 11
5.1 General . 11
5.2 Mandatory components . 11
5.3 Optional components . 12
5.4 Typical construction of LNG transfer hose assemblies . 12
5.4.1 Main hose categories . 12
5.4.2 Corrugated metal hose assemblies . 13
5.4.3 Thermoplastic multi-layer (non-vulcanized) hose assemblies (Composite hose
assemblies) . 15
5.4.4 Hose-in-hose with annular space . 16
6 Design features of the LNG transfer hoses assemblies . 17
6.1 General . 17
6.2 Transfer Hose Assembly technology design parameters . 17
6.3 Project Specific Design Parameters . 18
6.3.1 Selection of hose assembly length . 18
6.3.2 Service life . 18
6.3.3 Selection of buoyancy and submersion . 18
6.3.4 Selection of insulation . 18
6.3.5 Selection of external protection . 19
6.3.6 Selection of leak detection . 19
6.4 Component details – End fitting . 19
6.4.1 General . 19
6.4.2 Termination . 20
6.4.3 Connector . 20
6.4.4 Bending stiffener/restrictor (optional) . 20
6.5 Hose assembly handling / lifting device . 20
6.6 Safety systems . 20
6.6.1 Leak detection (optional) . 20
6.6.2 Fire safety requirements . 21
6.6.3 Electrical safety requirements . 21
6.7 Connection to the ship . 21
6.8 Hydraulic and electric control systems . 21
7 Qualification Requirements . 21
7.1 Foreword . 21
7.2 Qualification process . 22
7.2.1 General Principle . 22
7.2.2 Qualification Levels Specific Requirements . 22
7.2.3 Certification range definition from a tested hose assembly . 24
7.2.4 Certification extension and update . 25
7.3 Hose Assembly tests . 25
7.3.1 General . 25
7.3.2 Hose assembly property characterization tests . 26
7.3.3 Qualification tests with acceptance criteria . 34
8 Quality assurance and control . 44
8.1 General . 44
8.2 Material selection . 44
8.3 Manufacturing. 45
8.3.1 Manufacturing basics . 45
8.3.2 Traceability . 45
8.3.3 Marking . 45
8.3.4 Packing and Preservation . 46
8.4 Factory acceptance tests . 46
8.4.1 General . 46
8.4.2 Tests to be performed on every hose assembly . 46
9 Documentation . 46
9.1 Purchasing Guidelines . 46
9.2 Design, Qualification and Manufacturing Documentation . 46
9.3 As-built documentation/Manufacturing Data Book . 47
9.4 Operation manual . 47
Annex A (informative) Purchasing guidelines table . 49
Annex B (informative) Guidelines for additional testing program . 52
Annex C (Informative) Guidelines for Hose Qualification Categories (HQCs) Selection . 59
Annex D (informative) Surge pressure considerations for LNG hose assemblies . 61
Annex E (Informative) Pressure Leak Tests - justification about maximum allowed permeability
rate and leak detection value . 62
Bibliography . 64
...