Bsi bs en 13617 1 2012

3.2 delivery hose assembly flexible delivery system to which the nozzle is connected multi product metering pump/dispenser unit designed to deliver liquid fuels where the customer can

BSI Standards Publication

Petrol filling stations

Part 1: Safety requirements for construction and performance of metering pumps, dispensers and remote pumping units

This British Standard is the UK implementation of EN 13617-1:2012

It supersedes BS EN 13617-1:2004+A1:2009, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PVE/393/4, Metering pumps and dispensers for liquid fuel

A list of organizations represented on this committee can be obtained on request to its secretary

This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

© The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 71238 8

Amendments issued since publication

NORME EUROPÉENNE

English Version

Petrol filling stations - Part 1: Safety requirements for construction and performance of metering pumps, dispensers

and remote pumping units

Stations-service - Partie 1: Exigences relatives à la

construction et aux performances de sécurité des

distributeurs à pompe immergée, distributeurs de

carburants et unités de pompage à distance

Tankstellen - Teil 1: Sicherheitstechnische Anforderungen

an Bau- und Arbeitsweise von Zapfsäulen, druckversorgten

Zapfsäulen und Fernpumpen

This European Standard was approved by CEN on 13 April 2012

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, 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

C O M I T É E U R O P É E N D E N O R M A L I S A T I O N

E U R O P Ä I S C H E S K O M I T E E FÜ R N O R M U N G

Management Centre: Avenue Marnix 17, B-1000 Brussels

Contents Page

Foreword 4

Introduction 6

1 Scope 7

2 Normative references 7

3 Terms and definitions 8

4 List of significant hazards 12

5 Safety requirements and/or protective measures 13

5.1 Explosion protection measures 13

5.2 Selection of equipment 13

5.2.1 General 13

5.2.2 Pipe and hose permeability 14

5.2.3 Nozzle area – vapour releases only 15

5.2.4 Nozzle boot area 17

5.3 Safety requirements, protective measures, construction and performance 20

5.3.1 General requirements 20

5.3.2 Electrical apparatus 22

5.3.3 Non-electrical apparatus 24

5.3.4 Hydraulic apparatus 24

5.3.5 Vapour recovery system 26

5.3.6 Housings 26

5.3.7 Ventilation 27

5.4 Safety requirements related to electromagnetic phenomena 28

6 Tests 28

6.1 Type tests 28

6.1.1 General 28

6.1.2 Sight glass test 28

6.1.3 Pressure test for fuel containment systems 28

6.1.4 Tests for electric cables 29

6.1.5 Stability test 33

6.1.6 Pressure test for vapour recovery systems 33

6.1.7 Material assessment 33

6.1.8 Seal and gasket assessment 34

6.1.9 Electrical tests 34

6.2 Routine tests 35

6.2.1 Electrical tests 35

6.2.2 Hydraulic tests 35

7 Information for use 36

7.1 General 36

7.2 Signals and warnings 36

7.3 Accompanying documents 36

7.4 Marking 37

Annex A (normative) Classification of vapour barriers 38

A.1 General 38

A.2 Vapour barrier Type 1 38

A.3 Vapour barrier Type 2 38

A.4 Typical vapour barrier arrangements 39

A.4.1 Horizontal vapour barrier Type 1 39

A.4.2 Vertical vapour barrier Type 1 40

A.4.3 Horizontal vapour barrier Type 2 41

A.4.4 Vertical vapour barrier Type 2 42

Annex B (informative) Information on explosion protected equipment 45Annex C (informative) Environmental aspects 46

Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of

EU Directive 94/9/EC 48

Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of

EU Directive 2006/42/EC 50

Bibliography 51

Foreword

This document (EN 13617-1:2012) has been prepared by Technical Committee CEN/TC 393 “Equipment for storage tanks and for filling stations”, 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 November 2012, and conflicting national standards shall be withdrawn at the latest

by November 2012

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 13617-1:2004+A1:2009

In comparison with EN 13617-1:2004+A1:2009, the following fundamental changes have been made:

 the normative references have been updated;

 in 6.1.4.2, the test method for cables includes those required for use with biodiesel has been revised;

 in 6.1.8.2, the test method for seals and gaskets includes those required for use with biofuels;

 a new paragraph has been added in the scope: ‘Fuels other than the ones of Explosion Group IIA are excluded from this European Standard’;

 7.2.1 has been added;

 the existing 7.2 has been made into 7.2.2;

 the informative Annex C concerning environmental aspects has been added

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(s)

For relationship with EU Directives, see informative Annexes ZA and ZB, which are integral parts of this document

This European Standard Petrol filling stations consists of four parts:

 Part 1: Safety requirements for construction and performance of metering pumps, dispensers and remote

pumping units;

 Part 2: Safety requirements for construction and performance of safe breaks for use on metering pumps and

dispensers;

 Part 3: Safety requirements for construction and performance of shear valves;

 Part 4: Safety requirements for construction and performance of swivels for use on metering pumps and

Republic, Denmark, Estonia, Finland, 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

Introduction

This document is a type C standard as stated in EN ISO 12100

The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this document

When provisions of this type C standard are different 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, for machines that have been designed and built according to the provisions of the type C standard

It has been assumed that the use of the equipment for dispensing of fuels will be by untrained persons (user/dispenser), while other aspects of the operation, maintenance, etc., will be by designated and trained personnel (station personnel or operator)

1 Scope

This European Standard applies to metering pumps, dispensers and remote pumping units to be installed at petrol filling stations, designed to dispense liquid fuels into the tanks of motor vehicles, boats and light aircraft and into portable containers at flow rates up to 200 l min-1, and intended for use and storage at ambient temperatures between -20 °C and +40 °C Measures in addition to those required by this European Standard may be required for use and storage at temperature outside this range The need for and nature of additional requirements should be determined by the manufacturer, if necessary after consulting the client

This European Standard deals with all significant hazards, hazardous situations and events relevant to metering pumps, dispensers and remote pumping units, when they are used as intended and under the conditions foreseeable by the manufacturer (see Clause 4)

This European Standard gives health and safety related requirements for the selection, construction and performance of the equipment

This European Standard does not deal with noise and with hazards related to transportation and installation

This European Standard does not include any requirements for metering performance

Vapour recovery efficiency rates are not considered within this European Standard

Fuels other than the ones of Explosion Group IIA are excluded from this European Standard

This European Standard is not applicable to metering pumps, dispensers and remote pumping units which are manufactured before the date of publication of this document by CEN

This European Standard does not apply to equipment for use with liquefied petroleum gas (LPG) or liquefied natural gas (LNG) or compressed natural gas (CNG)

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 228, Automotive fuels — Unleaded petrol — Requirements and test methods

EN 590, Automotive fuels — Diesel — Requirements and test methods

EN 1360, Rubber and plastic hoses and hose assemblies for measured fuel dispensing systems — Specification

EN 13012, Petrol filling stations — Construction and performance of automatic nozzles for use on fuel dispensers

EN 13463-1:2009, Non-electrical equipment for use in potentially explosive atmospheres — Part 1: Basic method

and requirements

EN 13483, Rubber and plastic hoses and hose assemblies with internal vapour recovery for measured fuel

dispensing systems — Specification

EN 13617-2, Petrol filling stations — Part 2: Safety requirements for construction and performance of safe breaks

for use on metering pumps and dispensers

EN 14125, Thermoplastic and flexible metal pipework for underground installation at petrol filling stations

EN 14214, Automotive fuels — Fatty acid methyl esters (FAME) for diesel engines — Requirements and test

methods

CEN/TS 15293, Automotive fuels — Ethanol (E85) automotive fuel — Requirements and test methods

EN 60079-0, Explosive atmospheres — Part 0: Equipment — General requirements (IEC 60079-0)

EN 60079-1:2007, Explosive atmospheres — Part 1: Equipment protection by flameproof enclosures "d" (IEC 60079-1:2007)

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

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)

EN ISO 1182, Reaction to fire tests for products — Non-combustibility test (ISO 1182)

EN ISO 1825, Rubber hoses and hose assemblies for aircraft ground fuelling and defuelling — Specification

EN ISO 16852, Flame arresters — Performance requirements, test methods and limits for use (ISO 16852)

ISO 11925-3, Reaction to fire tests — Ignitability of building products subjected to direct impingement of flame —

Part 3: Multi-source test

HD 21.13 S1, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V — Part 13: Oil

resistant PVC sheathed cables with two or more conductors

HD 22.4 S3, Cables of rated voltages up to and including 450/750 V and having cross-linked insulation — Part 4:

Cords and flexible cables

3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the following apply

3.1

air and/or vapour separator

device used for continuously separating and removing air or gases contained in the liquid

3.2

delivery hose assembly

flexible delivery system to which the nozzle is connected

multi product metering pump/dispenser

unit designed to deliver liquid fuels where the customer can choose from more than one product, which may include systems where the fuel delivered is a mix of more than one base fuel

3.7

remote pumping unit

suction pump assembly mounted remotely from a dispenser

metering pump/dispensers hydraulic housing

structure, which may include cladding, to provide physical and ingress protection of the liquid and/or vapour equipment

impact check valve

normally open valve, activated by impact and heat, which closes to prevent flow from a pressure source and remains closed after activation

3.21

sight glass

device to allow checking that all, or part, of the measuring system is completely filled with liquid

3.22

vapour recovery system

system in and attached to the metering pump/dispenser to feed back the vapours displaced from the fuel tank and led back into the vapour return lines to the storage tank

perforated cladding fabrication which may be provided to enhance the visual appearance of a pump or dispenser or

to provide another related function

3.28

normal operation

situation when the equipment, protective systems, and components perform their intended function within their design parameters

Note 1 to entry: See EN ISO 12100:2010, 5.3

Note 2 to entry: Minor release of flammable material may be part of normal operation For example, releases of substances from seals which rely on wetting by the fluid which is being pumped are considered to be minor releases

Note 3 to entry: Failures (such as a breakdown of pump seals, flange gaskets or releases of substances caused by accidents) which involve repair or shut-down are not considered to be part of normal operation

delivery where the maximum volume (cost) for that delivery is fixed, either directly at the metering pump/dispenser

or remote from the metering pump/dispenser, before the delivery commences

3.32

preset delivery slowdown

last part of a preset delivery where the flow rate is limited by the metering pump/dispenser to allow accurate completion of the delivery

3.33

flow rate

volume flow delivered under normal working conditions

Note 1 to entry: ln l·min-1 or m3·h-1

3.34

potential ignition source

according to EN 13463-1

3.35

high hose inlet joint

delivery hose assembly connection at a location on equipment that will be at a height greater than 2 m above ground level when the equipment is installed

3.36

de-mountable joint

joint which is designed to be assembled and disassembled

3.37

satellite delivery system

remote delivery system connected to a metering pump/dispenser

3.38

check valve

normally closed, opened by flow of liquid in normal working conditions

ventilation which facilitates airflow from one side of a housing or enclosure to the opposite side, usually horizontally

4 List of significant hazards

Table 1 contains the significant hazards and hazardous situations, as far as they are dealt with in this European Standard, identified by a risk assessment significant for metering pumps, dispensers and remote pumping units used for the dispensing of liquid fuels, and which require action to eliminate or reduce risks

NOTE A risk assessment should be carried out to determine whether the hazards identified at Table 1 exist and whether there are additional hazards not covered by this standard It is the responsibility of the manufacturer, outside the scope of this

standard, to identify such hazards and provide suitable protective measures

Table 1 — List of significant hazards Significant hazards according to

EN ISO 12100:2010

Significant hazards, danger zones, hazardous situations or events, associated with the covered machinery

Safety requirements

1 Mechanical hazards due to

Drive belts and/or shafts

Stability of the dispenser in normal use

Vehicle movement

5.3.6 5.3.1.4, 5.3.1.5, 5.3.1.6, 5.3.3.2, 5.3.4, 5.3.5, 6.1.2, 6.1.3, 6.1.6

5.3.6.1, 5.3.6.2, 7.3 5.3.6.4, 6.1.7, 6.1.8 5.3.1.6, 6.1.5 5.3.4.7, 7.3

- Electrostatic phenomena

- Parts which have become live

under fault conditions

Charging of belts, hoses and cladding

5.3.3, 5.3.4.1, 5.3.4.3 5.3.2, 6.1.4, 6.1.9 5.3.2, 6.1.4

atmosphere by electrical or non-electrical parts or electrical change

Tightness of components, pipes, hoses

5.1, 5.2, 5.3

5.3.3, 5.3.4 5.3.3, 5.3.4

5.3.1.1, 5.3.1.2, 5.3.1.3, 5.3.2, 5.3.4.2, 7.3 7.3

5 Safety requirements and/or protective measures

5.1 Explosion protection measures

5.1.1 Explosion protection measures should be taken in accordance with Annex B

5.1.2 Equipment, components and protective systems used within hazardous areas, shall be suitable as a

minimum requirement for Explosion Group IIA with temperature class T3 as defined in EN 60079-0 and

NOTE 2 Further information relating to hazardous areas and zones is given in Annex B

5.2.1.2 The use of the expression 'hazardous areas' and ‘zones’ within this European Standard is restricted to the selection of equipment, protective systems and protective measures

5.2.1.3 All references to the degree of protection IP54 shall be taken as IP54 category 2 according to

EN 60529

5.2.1.4 Hazardous areas are created in and around metering pumps/dispensers as shown in 5.2 The extent of hazardous areas may be limited by the use of Type 1 or Type 2 vapour barriers

5.2.1.5 Enclosures for use in zone 2 areas shall either:

a) use apparatus suitable for the zone of hazard selected from EN 60079-0 where totally immersed in a zone 2;

or

b) have a minimum level of ventilation such that the breathing area of the enclosure shall have at least 80 % of its surface in a non-hazardous area and shall meet the breathing requirements of 5.3.7.4 from inside the enclosure to a non-hazardous area

5.2.1.6 The inside of the hydraulic housing of the metering pump/dispenser shall be considered to be zone 1, where category 2 equipment shall be used, unless potential sources of release are reduced in accordance with

EN 60079-10-1 The housing shall be at least IP23

5.2.1.7 The extent of the hazardous areas external to the metering pump/dispenser are determined by the following:

a) on the external side of a housing constructed to not less than IP23 and used to constrain a zone 1 area, a zone 2 area exists where category 3 equipment shall be used in the area as defined below (see Figure A.6):

1) limited upwards to 50 mm; and

2) 200 mm horizontally in all directions and downwards to ground projection

b) on the external side of a housing constructed to not less than IP54 and used to constrain a zone 1 area, a zone 2 area where category 3 equipment shall be used in the area as defined below (see Figure A.5):

1) 50 mm in all directions;

2) and downwards to ground projection

c) on the external side of a housing constructed to not less than IP67 and used to constrain a zone 1 area, no hazardous area exists (see Figure A.1 and Figure A.2)

5.2.1.8 The interior of the vapour containing parts of the vapour recovery system is zone 0, where category 1 equipment shall be used

5.2.1.9 A continuous non-permeable pipe (non-permeable is less than 0,1 g/m2/day) provides separation of

hazardous areas (inside) from non-hazardous areas (outside) with the exceptions of 5.2.2

5.2.1.10 If a pipe containing zone 0 vapour or fuel, has a de-mountable joint then there exists a zone 2 area, where category 3 equipment shall be used, (as in 5.2.1.7 a)) where the joint is in open air

5.2.2 Pipe and hose permeability

All fuel or vapour recovery containment in ventilated housings shall have the following limitations to permeation to allow a zone 1 classification, where category 2 equipment shall be used, in the housing:

a) pipes: less than or equal to 0,2 g/m2/day – tested according to EN 14125;

b) hoses: less than or equal to 12 ml/m/day – tested according to EN 13483

For ventilation requirements refer to 5.3.7

Conformity shall be demonstrated by pipe or hose supplier’s declarations

5.2.3 Nozzle area – vapour releases only

5.2.3.1 Around the nozzle in rest position there is an area of 200 mm horizontally and 50 mm upwards and downwards to ground level as zone 2, where category 3 equipment shall be used

5.2.3.2 Nozzle outside the housing and positioned > 50 mm from the dispenser wall If the wall is IP54 within

200 mm horizontally, 50 mm vertically upwards and downwards to ground level from the nozzle spout then on the other side of the IP54 wall there is no hazardous area due to the nozzle, see Figures 1 and 2

Dimensions in millimetres

Key

Zone 2: category 3 equipment

1 nozzle

2 non hazardous area

Figure 1 — Nozzle outside a housing at distance > 50 mm and ≤≤≤≤ 200 mm

Dimensions in millimetres

Key

Zone 2: category 3 equipment

1 nozzle

2 non hazardous area

Figure 2 — Nozzle outside a housing at distance > 50 mm and ≤≤≤≤ 200 mm 5.2.3.3 Nozzle outside the housing and positioned ≤ 50 mm from the dispenser wall If the wall is IP67 within

200 mm horizontally and 50 mm vertically upwards and downwards to ground level from the nozzle spout then on the other side of the IP67 wall there is no hazardous area due to the nozzle, see Figure 3

Dimensions in millimetres

Key

Zone 2: category 3 equipment

1 nozzle

2 non hazardous area

Figure 3 — Nozzle outside a housing at distance ≤≤≤≤ 50 mm 5.2.4 Nozzle boot area

5.2.4.1 The inside of the nozzle boot is zone 1, where category 2 equipment shall be used

5.2.4.2 The nozzle boot shall prevent retaining of liquid and be drained to the outside Drained liquid shall not create an additional hazard, see Figure 5

5.2.4.3 When the nozzle boot consists of a pocket and the wall inside the pocket is continuous and:

 the wall below the nozzle boot is not less than IP67 downwards to the lower extremity of the wall containing the nozzle boot;

 the wall within 200 mm horizontally and 50 mm vertically upwards from the pocket is not less than IP54;

then on the other side of the wall there is no hazardous area due to the nozzle, see Figures 4, 5 and 6

Dimensions in millimetres

Key

1 nozzle boot

Zone 1: category 2 equipment

Zone 2: category 3 equipment

Figure 4 — Nozzle boot area, front view

Dimensions in millimetres

Key

1 nozzle boot

2 non hazardous area

Zone 1: category 2 equipment

Zone 2: category 3 equipment

Figure 5 — Nozzle boot area, side view

Dimensions in millimetres

Key

2 non hazardous area

3 continuous

Zone 1: category 2 equipment

Zone 2: category 3 equipment

Figure 6 — Nozzle boot area, top view 5.2.4.4 Fuel from the nozzle boot can spread along any return surface of, or to, a non-hazardous area Means shall be provided to ensure that any such fuel is prevented from:

 entering any non-hazardous area, or

 from becoming trapped on surfaces or glands below

5.3 Safety requirements, protective measures, construction and performance

For hazards which are to be reduced by the application of a B-level standard such as EN 13463-1, EN 60730-2-10,

EN 60529 and EN 60204-1 and where this standard does not identify specific requirements, the manufacturer should carry out a risk assessment to establish the requirements of the B-standard which are to be applied This specific risk assessment is part of the general risk assessment of the machine

Where the means of reducing the risk is by the physical arrangement or positioning of the installed machine, the manufacturer shall include in the information for use a reference to the reduction means to be provided, and to any limiting value of the requirement, and, if appropriate, to the means of verification

Where the means of reducing the risk is by a safe system of working the machinery, such as for installation or maintenance, the manufacturer shall include in the information for use details of the safe system and of the elements of training required by the personnel

5.3.1.1.2 All electrical and non-electrical equipment and components, intended for use in potentially explosive atmospheres, shall be designed and constructed according to good engineering practice and in conformity with the required categories for Group II equipment

NOTE 1 For further information, see EN 60079-0 and EN 13463-1

Non-conductive parts of equipment exposed to the explosive atmosphere and susceptible to electrostatic charge shall comply with EN 13463-1:2009, 6.7

NOTE 2 Further information on this topic is given in CLC/TR 50404

5.3.1.1.3 Metering pumps/dispensers, including any hose cassettes, shall be fitted with a means to prevent

leakage from entering the ground beneath the dispenser

5.3.1.1.4 Metering pumps, dispensers, remote pumping units and satellite delivery systems shall be provided with a means for mounting on a plinth or other foundation

5.3.1.2 Controls

The metering pump/dispenser design shall be such that during the powering up sequence motors remain off and control valves remain closed Nozzle switches or other control devices that are activated before or during the powering up sequence shall be de-activated and re-activated before associated motors and/or control valves can

be enabled

Safety related parts of a control system shall be in accordance with EN ISO 13849-1

A means shall be provided to transmit from, or record on, the metering pump/dispenser data, by grade of fuel, to enable the aggregated total volume delivered to be determined

A means shall be provided to prevent the use of individual delivery systems within the metering pump/dispenser, allowing remaining delivery systems to be used

When there is a failure stopping the delivery it shall not be possible to restart the delivery without a manual operation

c) Each side of a metering pump shall have a means to ensure that:

1) when all nozzles are stowed in the nozzle boots, no delivery hose assembly shall be pressurised by the pressure source;

2) when a nozzle is removed form the nozzle boot, only that associated delivery hose assembly shall be pressurised by the pressure source

d) Metering pumps and dispensers with a preset delivery mode shall be provided with a means to prevent new flow of fuel through a nozzle which was not closed after the preceding preset delivery stop

5.3.1.4 Flow rates

Metering pumps/dispensers shall have a means of limiting the maximum flow rate, so that it does not exceed to a flow rate of any component

NOTE The maximum flow rate to which the metering pump/dispenser will be set may be determined by national regulations

or by other requirements such as vapour recovery considerations

Ancillary parts e.g nozzles, safe breaks, shall be selected according to the appropriate maximum flow rate of the associated outlet

5.3.1.5 Working pressure

Regulating means shall be provided to ensure that the working pressure of metering pump/dispenser systems shall not exceed 350 kPa (3,5 bar)

5.3.1.6 Stability

The following requirements shall be complied with when tested in accordance with 6.1.5:

a) metering pump/dispenser shall not break free of its anchorage; and

b) metering pump/dispenser shall not suffer catastrophic failure; and

c) electrical safety shall not be degraded; and

d) liquid release inside hydraulic unit and hose cassette together shall not exceed 4 l and outside the hydraulic unit and hose cassette shall not exceed 1 l

NOTE For regulatory reasons it may be necessary to include a safe break according to EN 13617-2 to fulfill these requirements

5.3.1.7 Vapour barriers

Vapour barriers, when used, shall conform to the requirements of Annex A All materials used in the construction of vapour barriers shall be chemically and dimensionally stable under known service conditions Materials likely to come into contact with fuels in both liquid and vapour phases shall be resistant to attack by these fuels Compliance shall be demonstrated by manufacturers' declaration

5.3.2 Electrical apparatus

5.3.2.1 General

Any electrical equipment, intended for use in a potentially explosive atmosphere, shall comply with the requirements of EN 60079-0 and, where relevant, the selected European Standard for the specific type of ignition protection; see Table B.1

The provisions of EN 60079-14, EN 60079-0, EN 60204-1 and EN 60950-1 as appropriate shall apply

5.3.2.2 Lamp markings

Voltage and power ratings of lamps and small illuminated equipment used within hazardous areas shall be permanently marked on, or adjacent to the equipment

5.3.2.3 Cabling insulation resistance

Means of disconnection of the power supply shall be provided within the metering pump/dispenser to allow a 500 V d.c insulation test to be applied from the non-hazardous area to all power cables connecting the metering pump/dispenser to a remote point (PELV cables are not included)

Removable cladding or covers of electrical equipment designed to give access to any manual means of disconnection is permitted

Any manual means of disconnection shall be readily accessible by designated and trained personnel

The means of disconnection shall ensure that:

a) all external power cables up to the means of disconnection can be tested between each phase and earth and between phases; and

b) all metering pump/dispenser power cables and apparatus within the hazardous area can be tested between the power circuit and earth

5.3.2.4 Cables used in hazardous areas

Cables used in hazardous areas shall comply with either EN 60079-14 and HD 21.13 S1 or EN 60079-14 and

HD 22.4 S3, or be tested in accordance with 6.1.4 and shall meet the following requirements:

a) when tested according to 6.1.4.2 there shall be no significant deterioration of the sheath or surface texture and

no splits or cracks; and

b) when tested according to 6.1.4.3 the sample shall show no evidence of splitting or cracking and no electrical breakdown shall occur; and

c) when tested according to 6.1.4.4 the sample shall show no evidence of splitting or cracking; and

d) when tested according to 6.1.4.5 no electrical breakdown shall occur and the measured values of insulation resistance shall be not less than 100 MΩ; and

e) when tested according to 6.1.4.6 there shall be no ignition of the gas within the outer chamber

5.3.2.5 Insulation and isolation

a) In order to avoid danger from sources of electrical energy capable of causing shock, and also, in hazardous areas, from non-intrinsically safe energy sources capable of causing incentive sparks, all such sources of energy and conductive components which are intended to remain live during maintenance, testing or inspection, shall be insulated or shielded according to EN 60204-1:2006, Clause 6 so as to prevent accidental contact

b) Power sources such as batteries, and capacitors which do not decay to a stored energy level of less than 0,2 mJ within 10 s, shall be considered as potential ignition sources and therefore shall be insulated or isolated The means of isolation shall comply with the following:

1) shall apply to all phase conductors; and

2) shall be operable prior to access to the internals of any electrical enclosure in a hazardous area, and shall

be suitable for the hazardous area in which it is mounted; and

3) for sources of energy not exceeding 24 V, shall be in accordance with either EN 60947-3 or shall include a gap between contacts in accordance with EN 60730-2-10 or be capable of satisfying a 500 V dielectric test across the contacts; or

4) for sources of energy exceeding 24 V, any means of isolation shall be in accordance with EN 60947-3

NOTE Neutral/negative conductors should be considered as phase conductors

5.3.2.6 Chemical cells in non-hazardous areas

There is the possibility of explosive atmosphere generation from chemical cells used to supply electrical power to the display head or other apparatus attached to the dispenser; thus producing its own hazardous area

Therefore cells shall be in a ventilated area If the cells are located in an enclosure with no internal hazardous area, low and high level ventilation shall be provided consistent with a degree of protection of IP33 according to

Non-electrical equipment used in a zone 1 area of metering pumps, dispensers and remote pumping units shall comply with the category 2 requirements according to EN 13463-1

5.3.3.1 Piping and pipe fittings through which liquid fuel or vapour flows shall be constructed from materials compatible with liquid fuel or vapour

5.3.3.2 All piping and pipe fittings and solders shall have a melting point greater than 310 °C

When tested according to 6.1.7.2 there shall be no catastrophic failure such as rupture

NOTE Steel pipe according to ISO 9329-1 to -4 and copper pipe according to EN 1057, of the appropriate material grade and section, are suitable materials to meet the criteria according to 6.1.7 of this standard Copper may not be compatible with higher blends of ethanol fuels in terms of risks from electrolytic corrosion

5.3.3.3 In order to prevent discharges between nozzle and filler necks of receptacles that could cause ignition materials and components shall be selected to ensure that the resistance between nozzle spout and earth is less than 106 Ω For test, see Table 3

5.3.3.4 Piping, pipe fittings and components through which liquid fuel or vapour flows shall be constructed of materials which do not directly contribute to the development of a fire

The test shall be carried out according to EN ISO 1182

Piping, pipe fittings and components through which liquid fuel or vapour flows shall be constructed from materials which shall not be degraded by the external environment in which the material is used The parts shall be of corrosion resistant material or be provided with a corrosion resistant protective coating

Conformity shall be demonstrated by supplier’s declaration which shall specify the materials used

5.3.3.5 Materials shall be selected such that electrolytic corrosion is prevented, this may be achieved by coatings on materials Materials for pipes, pipe fittings and components through which liquid fuel flows shall take into consideration that some biofuels act as electrolytes

Conformity shall be demonstrated by supplier’s declaration which shall specify the materials used

5.3.4 Hydraulic apparatus

5.3.4.1 General

Piping, pipe fittings and components through which liquid fuel flows and the associated seals and gaskets shall be tested according to 6.1.3

a) when tested according to 6.1.3.3 there shall be no catastrophic failure such as rupture; and

b) when tested according to 6.1.3.4 there shall be no leakage

Seals and gaskets in liquid and vapour piping, pipe fittings and components shall be tested according to 6.1.8 and there shall be no leakage

NOTE For families of seals and/or gaskets using the same material and similar mechanical construction only a representative seal or gasket needs to be tested

Piping, pipe fittings and components through which liquid or fuel vapours may pass shall not form a part of the load-bearing framework of a metering pump, dispenser or remote pumping unit Such piping and components may support cladding

Any connector used to connect the metering pump, dispenser or remote pumping unit to the delivery pipe from the storage tank shall be positioned wholly above a leak-proof plate/membrane

If a check valve is installed a means shall be provided to allow the suction side of the system to drain back to the storage tank without ground contamination

Belts used in the zone 1 area shall be antistatic The whole drive system shall be according to EN 13463-1

5.3.4.2 Nozzle

Each delivery hose assembly shall be terminated by a nozzle according to EN 13012

5.3.4.3 Delivery hose assemblies

Delivery hose assemblies shall be provided and installed according to EN 1360, EN ISO 1825 or EN 13483

All leakage from delivery hose assemblies and end joints shall be visible without the removal of covers This requirement does not prevent the use of hose anti kinking sleeves and/or other devices

Anti kinking sleeves fitted to delivery hose assemblies, and other devices covering delivery hose assemblies, shall

be constructed such that they allow ventilation and evaporation of liquid fuel even if some shrinkage occurs

5.3.4.4 Air and/or vapour separator(s)

Any air and/or vapour separated by the air and/or vapour separator shall be either exhausted through a vent pipe terminating inside or outside the hydraulic housing or be connected to a vapour pipe

A means shall be provided to prevent the ejection of liquid fuel through the vent pipe of the air and/or vapour separator

5.3.4.5 Float

Floats in a system that can become pressurised shall be pressure tested at 1,4 MPa (14 bar) for 60 s After pressure test floats shall be undistorted, as viewed by an eye of normal visual acuity, and shall function as specified

5.3.4.6 Sight glass

If a sight glass is fitted it shall be tested according to 6.1.2 and shall meet the following requirements:

 When tested according to 6.1.2.2 there shall be no visible crack

 When tested according to 6.1.2.3 there shall be no visible crack

 When tested according to 6.1.2.4 there shall be no quantifiable sign of leakage

5.3.4.7 Shear valve

All dispensers connected to a single or multiple outlet pressure source such as a remote pumping unit, shall include

a means of fitting one or more devices to automatically interrupt the flow of product in the event of dispensers being subject to accidental removal from their anchorage or fire; e.g see EN 13617-3

This means shall be clearly identified in the installation instructions

The output pipework from the shear valve shall be securely mounted to the dispenser frame so as to transmit any impact forces to the shear valve

5.3.4.8 High hose inlet joint area

At a high hose inlet joint construction, where no sight glass is used, no additional hazardous area is created provided the hose joint is entirely outside the metering pump/dispenser housing and leakage is visible without the removal of covers and the joint is constructed as follows:

 the end fittings of the delivery hose shall be of the non-reusable type and the coupling shall meet the connection requirements of EN 1360, EN ISO 1825 or EN 13483

5.3.5 Vapour recovery system

5.3.5.1 Piping, from the nozzle to the first flame arrester, shall be limited to a maximum bore of 15 mm

5.3.5.2 All parts through which fuel vapour flows and the associated seals shall be tested in accordance with 6.1.6 and there shall be no catastrophic failure

5.3.5.3 Where a vapour pump is present within the metering pump/dispenser the maximum operating pressure within the piping from the pressure side of the vapour pump shall not be more than 50 kPa (0,5 bar) Vapour pumps shall comply with EN 13463-1 and shall be equipped with flame arresters in the inlet and outlet ports The interior of the vapour pump and connecting pipes shall comply with category 1

5.3.5.4 Flame arresters shall be according to EN ISO 16852

5.3.5.5 Inside the hydraulic housing or in any other equivalent area the interface between the vapour recovery system and the surrounding area shall prevent flame transmission or shall be tight at a pressure of 10 bar as tested according to 6.1.6 Outside this housing, upstream of the vapour recovery suction means, there is no requirement for flame proof separation

5.3.5.6 The vapour recovery system shall be protected against flame transmission from one active fuelling nozzle to another active fuelling nozzle by at least one flame arrester Vapour pumps certified as autonomous protective systems may be used instead of the flame arrester in the first sentence of this sub-clause

5.3.5.7 A flame arrester shall be positioned between any potential source of ignition in normal use of the metering pump/dispenser and the field connection point of the vapour pipe

NOTE Necessary actions by customers and testers are normal use; events such as major damage by vehicles or detaching parts of the vapour recovery system for service or maintenance are not normal use

5.3.5.8 Means shall be provided to prevent emission of pressurised vapour/air mixture at the inlet of the vapour recovery system

5.3.6 Housings

5.3.6.1 The housing(s) shall provide mechanical protection against physical contact to the internal equipment

5.3.6.2 The housing(s), including cladding, shall have a secure means of fixing and shall be opened only by the use of a tool When safeguarding also against the risk relating to moving parts the elements of the housing shall not remain in place without their fixing In that case the fixing systems shall remain attached to the elements of the housing or to the frame when the elements are removed