prEN 17278

SLOVENSKI STANDARD
01-september-2018
Vozila na zemeljski plin - Polnilne naprave za vozila na zemeljski plin
Natural gas vehicles - Vehicle fuelling appliances
Erdgasbetriebene Fahrzeuge - Fahrzeugbetankungsgeräte
Véhicules fonctionnant au gaz naturel - Applications de remplissage de véhicules
Ta slovenski standard je istoveten z: prEN 17278
ICS:
75.160.30 Plinska goriva Gaseous fuels
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2018
ICS 75.160.30; 75.200
English Version
Natural gas vehicles - Vehicle fuelling appliances
Fuellanlagen fuer Erdgasfahrzeuge
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 326.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17278:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Abbreviations . 8
5 General principles of design . 8
5.1 General construction . 8
5.2 Materials . 9
5.3 Pipework . 10
5.4 Permanent joining . 10
5.5 Connection to the distribution gas network . 10
5.6 Gas composition . 10
5.6.1 General. 10
5.6.2 Gas composition during maintenance . 10
5.7 Noise attenuation . 10
5.8 Dryer . 10
5.9 Temperature compensation . 10
5.10 Safety devices . 10
5.10.1 General. 10
5.10.2 Minimum inlet pressure safety device . 11
5.10.3 Auxiliary safety devices . 11
5.10.4 Delivered gas pressure and temperature . 11
5.10.5 Hose rupture detection system . 11
5.10.6 Protection of the inlet supply pipeline . 11
5.11 Delivery system . 11
5.11.1 Fuelling hose . 11
5.11.2 Breakaway device . 12
5.11.3 Filling nozzle . 12
5.11.4 Fuelling pressure discharge system . 12
5.12 Earthing protection . 12
5.13 Ventilation . 12
6 Testing . 13
6.1 General. 13
6.2 Periodic inspection . 13
7 Installation . 13
7.1 General. 13
7.2 VFA location . 13
7.2.1 General. 13
7.2.2 VFA location indoors . 14
7.2.3 VFA location outdoors . 15
7.3 VFA installation indoors . 16
7.3.1 Installation conditions . 16
7.3.2 Ventilation conditions . 16
7.3.3 Compatibility with other gas appliances . 16
7.4 VFA installation outdoors . 16
7.4.1 Installation conditions . 16
7.4.2 Ventilation conditions . 16
8 Operation . 16
8.1 General . 16
8.2 User of VFA . 17
8.3 Periodic inspection of storage cylinders . 17
8.4 Periodic inspection of fuelling hose . 17
9 Marking and labelling . 17
Bibliography . 18

European foreword
This document (prEN 17278:2018) has been prepared by Technical Committee CEN/TC 326 “Natural Gas
Vehicles - Fuelling and Operation”, the secretariat of which is held by NEN.
This document is currently submitted to the CEN Enquiry.
1 Scope
This document covers the design and manufacturing, installation and testing, operation and maintenance
of vehicle fuelling appliances (VFA) for domestic fuelling of vehicles with compressed natural gas (CNG).
This document is applicable to VFAs having the following technical limits:
— maximum compressing capacity: 20 Nm /h (NTP);
— maximum internal storage volume for outdoor installation: 400 l;
— maximum gas outlet pressure: 200 bar at 15 °C;
This document is applicable to VFAs supplied with natural gas as defined in local applicable gas
composition regulations or EN 16723-2, or with other gases meeting these requirements including
biomethane, upgraded coal-bed methane (CBM) and gas from liquefied natural gas (LNG) vaporizer (on-
site or off-site).
This document applies to VFAs not incorporating gas outlet metering systems.
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 16723-2:2017, Natural gas and biomethane for use in transport and biomethane for injection in the
natural gas network – Part 2: Automotive fuels specification
EN 60204-1, Safety of machinery - Electrical equipment of machines – Part 1: General requirements
EN ISO 16923:2018, Natural gas fuelling stations - CNG stations for fuelling vehicles (ISO 16923:2016)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
automatic restart
system designed to initiate a fuelling sequence without a physical action by a person at the appliance
3.2
biomethane
gas comprising principally methane, obtained from either upgrading of biogas or methanation of bio-
syngas
[SOURCE: EN 16723-2:2017, 3.3]
3.3
fuelling pressure discharge system
VFA built-in system designed to reduce the pressure of CNG in the fuelling nozzle to allow safe
disconnection from the NGV
Note 1 to entry: A fuelling pressure discharge system is mandatory in VFAs.
3.4
boosting system
VFA built-in system intended for forced emptying of a VFA storage system
Note 1 to entry: A boosting system i
...