LPG equipment and accessories - Construction and performance of LPG equipment for automotive filling stations - Part 1: Dispensers

This European Standard covers the requirements for the design, manufacture, testing and marking of LPG dispensers for automotive LPG filling stations with a maximum allowable pressure of 25 bar (2 500 kPa), where the piping has a maximum DN 40 and any vessel fitted has a volume less than 2 l. This European Standard covers the requirements for the LPG parts in multi-fuel dispensers. This European Standard does not cover dispensers with integral pumps. This European Standard may also be used for piping greater than DN 40 and/or vessels greater than 2 l, but then the PED [20] should also be consulted. This European Standard does not include any requirement for metering performance.

Flüssiggas-Geräte und Ausrüstungsteile - Bau- und Arbeitsweise von Flüssiggas-Geräten für Autogas-Tankstellen - Teil 1: Zapfsäulen

Diese Europäische Norm enthält die Anforderungen an die Gestaltung, Herstellung, Prüfung und Kenn¬zeich-nung von Zapfsäulen für Flüssiggas (LPG) an Autogas-Tankstellen mit einem Betriebsdruck von 25 bar (2 500 kPa), bei Rohrleitungen bis DN 40 und bei allen angeschlossenen Behältern mit einem Volumen von weniger als 2 l. Diese Norm umfasst keine Zapfsäulen mit Einbaupumpen.
ANMERKUNG   Diese Norm kann auch auf Rohrleitungen größer als DN 40 und/oder Behälter größer als 2 l ange-wendet werden, dabei sollte jedoch die PED mit herangezogen werden.
Diese Norm enthält auch Anforderungen für Flüssiggas(LPG)-Bauteile von Mehrstoff-Zapfsäulen.

Equipements pour GPL et leurs accessoires - Construction et caractéristiques des équipements GPL dans les stations-service - Partie 1: Distributeurs

La présente Norme européenne traite des exigences relatives à la conception, à la construction, aux essais et au marquage des distributeurs de GPL pour stations-service délivrant du GPL carburant ayant une pression maximale admissible de 25 bar (2 500 kPa), lorsque la DN de la tuyauterie est au maximum égale à 40 et que tout récipient installé a un volume inférieur à 2 l.
La présente Norme européenne traite également des exigences relatives aux parties GPL dans les distributeurs multi-carburants.
La présente Norme européenne ne traite pas des distributeurs munis de pompes intégrées.
La présente Norme européenne peut également être utilisée pour des tuyauteries plus grandes que DN 40 et/ou pour des récipients de volume supérieur à 2 l, mais il convient alors de consulter la DESP [20].
La présente Norme européenne n’inclut aucune exigence relative à la performance de comptage.

Oprema in pribor za utekočinjeni naftni plin (UNP) - Izdelava in lastnosti opreme za UNP za bencinske servise - 1. del: Točilne naprave

Ta evropski standard zajema zahteve za zasnovo, proizvodnjo, preskušanje in označevanje naprav za točenje utekočinjenega naftnega plina za bencinske servise z najvišjim dovoljenim tlakom 25 barov (2500 kPa), kjer imajo cevi največ DN 40 in vse nameščene posode manj kot 2 l prostornine. Ta evropski standard zajema zahteve za dele za utekočinjeni naftni plin v napravah za točenje različnih vrst goriva. Ta evropski standard ne zajema naprav za točenje goriva z vgrajenimi črpalkami. Ta evropski standard se lahko uporablja za cevi, večje od DN 40 in/ali posode s prostornino, večjo od 2 l, a je pri tem potrebno upoštevati PED [20]. Ta evropski standard ne vključuje zahtev za lastnosti merjenja.

General Information

Status
Published
Public Enquiry End Date
19-Nov-2010
Publication Date
19-Jun-2013
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Jun-2013
Due Date
11-Aug-2013
Completion Date
20-Jun-2013

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flüssiggas-Geräte und Ausrüstungsteile - Bau- und Arbeitsweise von Flüssiggas-Geräten für Autogas-Tankstellen - Teil 1: ZapfsäulenEquipements pour GPL et leurs accessoires - Construction et caractéristiques des équipements GPL dans les stations-service - Partie 1: DistributeursLPG equipment and accessories - Construction and performance of LPG equipment for automotive filling stations - Part 1: Dispensers75.200Petroleum products and natural gas handling equipmentICS:Ta slovenski standard je istoveten z:EN 14678-1:2013SIST EN 14678-1:2013en,fr,de01-julij-2013SIST EN 14678-1:2013SLOVENSKI

STANDARDSIST EN 14678-1:2006+A1:20091DGRPHãþD
SIST EN 14678-1:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14678-1
March 2013 ICS 75.200 Supersedes EN 14678-1:2006+A1:2009English Version

LPG equipment and accessories - Construction and performance of LPG equipment for automotive filling stations - Part 1: Dispensers

Equipements pour GPL et leurs accessoires - Construction et caractéristiques des équipements GPL dans les stations-service - Partie 1: Distributeurs

Flüssiggas-Geräte und Ausrüstungsteile - Bau- und Arbeitsweise von Flüssiggas-Geräten für Autogas-Tankstellen - Teil 1: Zapfsäulen This European Standard was approved by CEN on 5 February 2013.

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 © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14678-1:2013: ESIST EN 14678-1:2013

EN 14678-1:2013 (E) 2 Contents Page Foreword ..............................................................................................................................................................4 Introduction .........................................................................................................................................................5 1 Scope ......................................................................................................................................................6 2 Normative references ............................................................................................................................6 3 Terms and definitions ...........................................................................................................................7 4 Requirements .........................................................................................................................................9 4.1 Environmental ........................................................................................................................................9 4.2 Electrical equipment ..............................................................................................................................9 4.2.1 General ....................................................................................................................................................9 4.2.2 Cabling insulation resistance ...............................................................................................................9 4.2.3 Cables used in hazardous area ......................................................................................................... 10 4.2.4 Dead man’s push button .................................................................................................................... 10 4.2.5 Insulation and isolation ...................................................................................................................... 10 4.2.6 Chemical cells in non-hazardous areas ........................................................................................... 10 4.3 Design .................................................................................................................................................. 11 4.3.1 Maximum allowable pressure ............................................................................................................ 11 4.3.2 Design temperature ............................................................................................................................ 11 4.3.3 Materials .............................................................................................................................................. 11 4.3.4 Pressure gauges ................................................................................................................................. 12 4.3.5 Trapped liquid ..................................................................................................................................... 12 4.3.6 Joints ................................................................................................................................................... 12 4.3.7 Seals and gaskets ............................................................................................................................... 12 4.3.8 Sight glass ........................................................................................................................................... 12 4.3.9 LPG system ......................................................................................................................................... 12 4.4 Explosion protection measures ........................................................................................................ 13 4.4.1 General ................................................................................................................................................. 13 4.4.2 Avoidance or reduction of ignition sources .................................................................................... 13 4.4.3 Construction measures to limit explosive atmospheres ................................................................ 13 4.5 Construction ........................................................................................................................................ 14 4.5.1 Mechanical strength ........................................................................................................................... 14 4.5.2 Housing ................................................................................................................................................ 15 4.5.3 Stability ................................................................................................................................................ 15 4.5.4 Ventilation ............................................................................................................................................ 15 4.5.5 Delivery hose assembly ..................................................................................................................... 15 4.5.6 Nozzle ................................................................................................................................................... 15 4.5.7 Nozzle boot .......................................................................................................................................... 15 4.5.8 Control provisions .............................................................................................................................. 16 5 Type tests ............................................................................................................................................ 16 5.1 General ................................................................................................................................................. 16 5.2 Sight glass tests ................................................................................................................................. 16 5.2.1 Impact test ........................................................................................................................................... 16 5.2.2 Pressure test 1 .................................................................................................................................... 16 5.2.3 Pressure test 2 .................................................................................................................................... 17 5.3 Pressure tests for LPG system ......................................................................................................... 17 5.3.1 Pressure test 1 .................................................................................................................................... 17 5.3.2 Pressure test 2 .................................................................................................................................... 17 5.3.3 Environmental provisions .................................................................................................................. 17 5.4 Tests for electric cables used in hazardous areas.......................................................................... 17 5.5 Stability test ......................................................................................................................................... 18 5.5.1 Test procedure .................................................................................................................................... 18 SIST EN 14678-1:2013

EN 14678-1:2013 (E) 3 5.5.2 Test interpretation ............................................................................................................................... 18 5.6 Electrical tests ..................................................................................................................................... 18 5.6.1 Continuity of the protective bonding circuit..................................................................................... 18 5.6.2 Insulation resistance test ................................................................................................................... 18 5.6.3 Voltage test .......................................................................................................................................... 18 5.6.4 Functional tests ................................................................................................................................... 19 5.7 Operational test for the breakaway coupling ................................................................................... 19 5.7.1 Test procedure ..................................................................................................................................... 19 5.7.2 Test interpretation ............................................................................................................................... 19 5.8 Operational test for the shear valve / break point ............................................................................ 19 5.8.1 Test procedure ..................................................................................................................................... 19 5.8.2 Test interpretation ............................................................................................................................... 19 6 Production tests .................................................................................................................................. 19 6.1 General ................................................................................................................................................. 19 6.2 Electrical tests ..................................................................................................................................... 20 6.3 LPG system tests for dispensers ...................................................................................................... 20 6.3.1 General ................................................................................................................................................. 20 6.3.2 Test procedures ................................................................................................................................... 20 6.3.3 Test interpretation ............................................................................................................................... 20 7 Documentation .................................................................................................................................... 21 8 Markings and signs ............................................................................................................................. 21 8.1 User signage ........................................................................................................................................ 21 8.2 Minimum markings .............................................................................................................................. 21 9 Packaging ............................................................................................................................................. 22 Annex A (normative)

Classification of hazardous areas in and adjacent to the dispenser ...................... 23 A.1 General ................................................................................................................................................. 23 A.2 Nozzle area – vapour releases only ................................................................................................... 23 A.3 Nozzle boot area .................................................................................................................................. 26 Annex B (normative)

Vapour barriers ............................................................................................................. 28 B.1 Classification ....................................................................................................................................... 28 B.1.1 General ................................................................................................................................................. 28 B.1.2 Vapour barrier - Type 1 ....................................................................................................................... 28 B.1.3 Vapour barrier - Type 2 ....................................................................................................................... 28 B.1.4 Air gaps ................................................................................................................................................ 28 B.1.5 Screens ................................................................................................................................................. 28 B.2 Typical vapour barrier arrangements ................................................................................................ 29 Annex C (informative)

Information on explosion protected equipment ...................................................... 33 Annex D (informative)

Environmental checklist ............................................................................................ 34 Annex E (informative)

Significant technical changes between this document and the previous edition of this European Standard ..................................................................................................... 35 Annex ZA (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 94/9/EC .............................................................................................. 36 Bibliography ...................................................................................................................................................... 38

SIST EN 14678-1:2013

EN 14678-1:2013 (E) 4 Foreword This document (EN 14678-1:2013) has been prepared by Technical Committee CEN/TC 286 “Liquefied petroleum gas equipment and accessories”, the secretariat of which is held by NSAI. 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 2013, and conflicting national standards shall be withdrawn at the latest by September 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14678-1:2006+A1:2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive. For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document. Differences between this document and EN 14678-1:2006+A1:2009 include:  The addition of test requirements to 5.7.1 and 5.8.1;  The definition of unattended filling stations; and

 The addition of an environmental checklist. EN 14678 consists of the following parts:  EN 14678-1, LPG equipment and accessories — Construction and performance of LPG equipment for automotive filling stations — Part 1: Dispensers;  EN 14678-2, LPG equipment and accessories — Construction and performance of LPG equipment for automotive filling stations — Part 2: Components other than dispensers and installation requirements;  EN 14678-3, LPG equipment and accessories — Construction and performance of LPG equipment for automotive filling stations — Part 3: Refuelling installations at private and industrial premises. 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, 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. SIST EN 14678-1:2013

EN 14678-1:2013 (E) 5 Introduction This document is a type C standard as stated in EN ISO 12100:2010. When provisions of this type C standard differ from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards. This European Standard calls for the use of substances and procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. Protection of the environment is a key political issue in Europe and elsewhere. Protection of the environment is taken in a very broad sense. What is meant is the total life cycle aspects of, e.g. a product on the environment, including expenditure of energy and during all phases from mining of raw materials, fabrication, packaging, distribution, use, scrapping, recycling of materials, etc.

NOTE Annex D indicates which clauses in this European Standard address environmental issues. Clauses addressing environmental issues are restricted to a general guidance. Limiting values can be specified in national laws. It is recommended that companies using this European Standard develop an environmental management policy. For guidance see ISO 14000 series [15], [16] and [17]. It has been assumed in the drafting of this European Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people. All pressures are gauge unless otherwise specified. The PED, Directive 97/23/EC [20], applies to any assembly with a component defined as category II or higher in this Directive:  Article 1, 3.6 of the PED excludes equipment classified as no higher than category I under article 9 if it is covered by Directive 94/9/EC (ATEX).

 The category I limit is defined in Annex II Table 6 of the PED. It applies to piping for liquids whose vapour pressure at the maximum allowable temperature is greater than 0,5 bar (50 kPa) above DN 100 or, in the case of maximum allowable pressures greater than 10 bar (1 kPa), is above the product of DN and PS of 1 000.  Because the maximum allowable pressure (PS) in this document is 25 bar (2 500 kPa) and the DN of the intended piping is less than 40, the product of DN and PS of 1 000 in Table 6 of the PED is not reached.  The category I limit for vessels is defined in Annex II Table 1 of the PED. It also applies to vessels for liquids whose vapour pressure at the maximum allowable temperature is greater than 0,5 bar (50 kPa) above volumes (V) of 1 l up to a pressure of 200 bar or, in the case of the product of V and PS of 50.  Because the maximum allowable pressure (PS) in this document is 25 bar (2 500 kPa) and if the V of the intended vessel is less than 2 l, the product of V and PS of 50 in Table 1 of the PED is not reached. SIST EN 14678-1:2013

EN 14678-1:2013 (E) 6

1 Scope This European Standard covers the requirements for the design, manufacture, testing and marking of LPG dispensers for automotive LPG filling stations with a maximum allowable pressure of 25 bar (2 500 kPa), where the piping has a maximum DN 40 and any vessel fitted has a volume less than 2 l.

This European Standard covers the requirements for the LPG parts in multi-fuel dispensers. This European Standard does not cover dispensers with integral pumps. This European Standard may also be used for piping greater than DN 40 and/or vessels greater than 2 l, but then the PED [20] should also be consulted. This European Standard does not include any requirement for metering performance. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 549, Rubber materials for seals and diaphragms for gas appliances and gas equipment EN 837-1, Pressure gauges  Part 1: Bourdon tube pressure gauges  Dimensions, metrology, requirements and testing EN 1127-1, Explosive atmospheres  Explosion prevention and protection  Part 1: Basic concepts and methodology EN 1762, Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa)  Specification EN 1775, Gas supply  Gas pipework for buildings  Maximum operating pressure less than or equal to 5 bar  Functional recommendations EN 13463-1, Non-electrical equipment for use in potentially explosive atmospheres  Part 1: Basic method and requirements EN 13480-1, Metallic industrial piping  Part 1: General EN 13480-2, Metallic industrial piping  Part 2: Materials EN 13480-3, Metallic industrial piping  Part 3: Design and calculation EN 13480-4, Metallic industrial piping  Part 4: Fabrication and installation EN 13480-5, Metallic industrial piping  Part 5: Inspection and testing EN 13617-1, Petrol filling stations  Part 1: Safety requirements for construction and performance of metering pumps, dispensers and remote pumping units EN 13760, Automotive LPG filling system for light and heavy duty vehicles  Nozzle, test requirements and dimensions SIST EN 14678-1:2013

EN 14678-1:2013 (E) 7 EN 15001-1, Gas Infrastructure  Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations  Part 1: Detailed functional requirements for design, materials EN 50525-2-21, Electric cables  Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U)  Part 2-21: Cables for general applications  Flexible cables with crosslinked elastomeric insulation EN 50525-2-51, Electric cables  Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U)  Part 2-51: Cables for general applications  Oil resistant control cables with thermoplastic PVC insulation EN 60079-0, Explosive atmospheres  Part 0: Equipment  General requirements (IEC 60079-0) EN 60079-7:2007, Explosive atmospheres  Part 7: Equipment protection by increased safety "e" (IEC 60079-7:2006) EN 60079-10-1, Explosive atmospheres  Part 10-1: Classification of areas  Explosive gas atmospheres (IEC 60079-10-1) EN 60079-14, Explosive atmospheres  Part 14: Electrical installations design, selection and erection (IEC 60079-14) EN 60079-15, Explosive atmospheres  Part 15: Equipment protection by type of protection "n" (IEC 60079-15) EN 60204-1:2006, Safety of machinery  Electrical equipment of machines  Part 1: General requirements (IEC 60204-1:2005, mod.) EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529) EN 60730-2-10, Automatic electrical controls for household and similar use  Part 2-10: Particular requirements for motor-starting relays (IEC 60730-2-10) EN 60947-3, Low-voltage switchgear and controlgear  Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units (IEC 60947-3) EN 60950-1, Information technology equipment  Safety  Part 1: General requirements (IEC 60950-1) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 liquefied petroleum gas

LPG low pressure gas composed of one or more light hydrocarbons which are assigned to UN 1011, UN 1075, UN 1965, UN 1969 or UN 1978 only and which consists mainly of propane, propene, butane, butane isomers, butene with traces of other hydrocarbon gases Note 1 to entry: For the specification of automotive LPG see EN 589. 3.2 maximum allowable pressure maximum pressure for which the equipment is designed

SIST EN 14678-1:2013

EN 14678-1:2013 (E) 8 3.3 excess flow valve valve designed to close automatically, with a small residual flow, when the fluid flow passing through it exceeds a predetermined value, and to re-open when the pressure differential across the valve has been restored below a certain value 3.4 hydrostatic relief valve self-closing valve which automatically, without the assistance of any energy other than that of the fluid concerned, discharges fluid at a predetermined pressure 3.5 shear valve normally open valve activated by impact which closes both sides of the break point to prevent flow and remains closed after activation Note 1 to entry: Also referred to as an impact check valve. 3.6 dead man’s push button manually operated non latching device which immediately stops the flow when released 3.7 hazardous area area in which an explosive atmosphere is present, or may be expected to be present, in quantities such as to require special precautions for the construction, installation and use of equipment 3.8 dispenser delivery and measuring unit for LPG in the liquid phase 3.9 breakaway coupling coupling which separates at a predetermined section when required and each separated section contains a self-closing shut-off valve, which seals automatically Note 1 to entry: Also referred to as a safe break. 3.10 nozzle boot partially enclosed housing where the filling nozzle is located when not in use 3.11 LPG system installation of piping and components in contact with LPG 3.12 break point weakened section in a pipe or fitting intended to break when excessive force is applied 3.13 sight glass device to allow checking that all, or part, of the measuring system is completely filled with liquid 3.14 screen perforated cladding fabrication which may be provided to enhance the visual appearance of a pump or dispenser or to provide another related function SIST EN 14678-1:2013

EN 14678-1:2013 (E) 9 3.15 standard temperature and pressure STP 15,6 °C (288,7 K), 1,013 bar absolute (0,1013 MPa absolute) 3.16 vapour trap unventilated part of a structure where vapours can accumulate creating an area of greater hazard than its immediate surroundings 3.17 excess flow protection system system, including software and hardware arrangements, designed to assess flow rate and close valves to stop the fluid flow when the flow rate exceeds a predetermined value 4 Requirements

4.1 Environmental 4.1.1 The manufacturer shall endeavour to acquire materials and components from suppliers who have a declared environmental policy, see EN ISO 14021, EN ISO 14024 and EN ISO 14025. 4.1.2 Materials should be selected to optimise product durability and lifetime and consideration should be made to avoiding the selection of rare or hazardous materials. 4.1.3 Consideration should be made to use recycled or reused materials, and to the selection of materials which can then be subsequen

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