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

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. Additional measures can be required for use and storage at temperatures outside this range and is to negotiate between the manufacturer and its 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 foreseen by the manufacturer (see clause 4).
This European Standard specifies selection of equipment and construction and performance requirements for safety aspects.
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.
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.
NOTE   Liquefied petroleum gas (LPG) is not a liquid fuel in the sense of this European Standard.

Tankstellen - Teil 1: Sicherheitstechnische Anforderungen an Bau- und Arbeitsweise von Zapfsäulen, druckversorgten Zapfsäulen und Fernpumpen

Diese Europäische Norm legt die sicherheitstechnischen und Umweltanforderungen an den Bau und die Arbeitsweise von Zapfsäulen und druckversorgten Zapfsäulen fest, die an Tankstellen für die Abgabe von flüssigen Kraftstoffen in Tanks von Automobilen, Booten und Leichtflugzeugen und in tragbare Behälter bei Durchflußraten bis zu 200 Lmin-1, installiert werden. Sie berücksichtigt besonders elektrische, mechanische, hydraulische Einrichtungen und elektrische Geräte, die in oder an Gehäusen der Zapfsäulen montiert sind.

Stations-service - Partie 1: Exigences relatives a la construction et aux performances de sécurité des distributeurs a pompe immergée, distributeurs de carburants et unités de pompage a distance

La présente Norme européenne s'applique aux distributeurs a pompe immergée, distributeurs de carburants et unités de pompage a distance destinés a etre installés sur les stations-service et utilisés pour distribuer des carburants liquides dans des réservoirs de véhicules a moteur, bateaux, avions légers, réservoirs portables a des débits jusqu'a 200 l.min-1 et pouvant etre utilisés et stockés a des températures ambiantes comprises entre - 20 °C et + 40 °C.
La présente Norme européenne traite tous les risques, situations et évenements dangereux liés distributeurs avec pompe immergée, aux distributeurs de carburant et aux unités de pompage a distance utilisés selon les conditions prévues par le fabricant (voir l'Article 4).
La présente Norme européenne spécifie le choix de l'équipement, la construction et les exigences de performance vis-a-vis des aspects sécurité.
La présente Norme européenne ne traite pas du bruit et des risques liés au transport et a l'installation.
La présente Norme européenne ne comporte aucune exigence relative aux performances métrologiques.
Les taux d'efficacité de récupération des vapeurs ne sont pas pris en compte dans la présente Norme européenne.
La présente Norme européenne n'est pas applicable aux distributeurs de carburants et unité de pompage a distance fabriqués avant la date de publication du présent document par le CEN.
NOTE   Le gaz de pétrole liquéfié (GPL) n'est pas un carburant liquide au sens de la présente Norme européenne.

Bencinske črpalke - 1. del: Varnostne zahteve za izdelavo in lastnosti avtomatov za točenje bencina, razdeljevalnikov in oddaljenih črpalnih enot

General Information

Status
Withdrawn
Publication Date
31-Aug-2004
Withdrawal Date
10-Nov-2009
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
05-Nov-2009
Due Date
28-Nov-2009
Completion Date
11-Nov-2009

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Petrol filling stations - Part 1: Safety requirements for construction and performance of metering pumps, dispensers and remote pumping unitsStations-service - Partie 1: Exigences relatives a la construction et aux performances de sécurité des distributeurs a pompe immergée, distributeurs de carburants et unités de pompage a distanceTankstellen - Teil 1: Sicherheitstechnische Anforderungen an Bau- und Arbeitsweise von Zapfsäulen, druckversorgten Zapfsäulen und Fernpumpen75.200Petroleum products and natural gas handling equipment01.040.75Naftna in sorodna tehnologija (Slovarji)Petroleum and related technologies (Vocabularies)ICS:SIST EN 13617-1:2004enTa slovenski standard je istoveten z:EN 13617-1:200401-september-2004SIST EN 13617-1:2004SLOVENSKI
STANDARD







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13617-1May 2004ICS 01.040.75; 75.200English versionPetrol filling stations - Part 1: Safety requirements forconstruction and performance of metering pumps, dispensersand remote pumping unitsStations-service - Partie 1: Exigences relatives à laconstruction et aux performances de sécurité desdistributeurs de carburants et unités de pompage àdistanceTankstellen - Teil 1: Sicherheitstechnische Anforderungenan Bau- und Arbeitsweise von Zapfsäulen, druckversorgtenZapfsäulen und FernpumpenThis European Standard was approved by CEN on 9 February 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13617-1:2004: E



EN 13617-1:2004 (E)2ContentspageForeword.41Scope.62Normative references.63Terms and definitions.74List of significant hazards.115Safety requirements and/or protective measures.135.1Explosion protection measures.135.2Selection of equipment.145.3Safety requirements, protective measures, construction and performance.215.4Safety requirements related to electromagnetic phenomena.296Tests.296.1Type tests.296.2Routine tests.367Information for use.377.1General.377.2Signals and warnings.387.3Accompanying documents.387.4Marking.39Annex A (normative)
Classification of vapour barriers.40A.1General.40A.2Vapour barrier Type 1.40A.3Vapour barrier Type 2.40A.4Typical vapour barrier arrangements.41Annex B (informative)
Information on explosion protected equipment.47Annex ZA (informative)
Clauses of this European Standard addressing essential requirements orother provisions of EU Directives.49Annex ZB (informative)
Relationship of this document with EC Directives.51Bibliography.52FiguresFigure 1 — Nozzle outside a housing at distance > 50 mm and £ 200 mm.16Figure 2 — Nozzle outside a housing at distance > 50 mm and £ 200 mm.17Figure 3 — Nozzle outside a housing at distance £ 50 mm.18Figure 4 — Nozzle boot area, front view.19Figure 5 — Nozzle boot area, side view.20Figure 6 — Nozzle boot area, top view.21Figure 7 — Test set-up for the impact test.31Figure 8 — Test set-up for flame transmission test.34Figure A.1 — Horizontal vapour barrier Type.41Figure A.2 — Vertical vapour barrier Type 1.42Figure A.3 — Horizontal vapour barrier Type 2.43Figure A.4 — Vertical vapour barrier Type 2.44Figure A.5 — Vertical vapour barrier Type 2.45



EN 13617-1:2004 (E)3Figure A.6 — Vertical vapour barrier Type 2.46TablesTable 1 — List of significant hazards.12Table 2 — Test voltages.32Table 3 — Routine electrical tests.37Table B.1 — Standard protection concepts allowed.48Table ZA.1 — Essential requirements of Directive 94/9/EC Equipment and protective systems intendedfor use in potentially explosive atmospheres — Annex II.49



EN 13617-1:2004 (E)4ForewordThis document (EN 13617-1:2004) has been prepared by Technical Committee CEN/TC 221 “Shop fabricatedmetallic tanks and equipment for storage tanks and for service 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 orby endorsement, at the latest by November 2004, and conflicting national standards shall be withdrawn at the latestby November 2004.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annexes ZA and ZB, which are integral parts of thisdocument.This European Standard “Petrol filling stations” consists of 4 parts:Part 1:Safety requirements for construction and performance of metering pumps, dispensers and remotepumping unitsPart 21):Safety requirements for construction and performance of safe breaks for use on metering pumps anddispensersPart 31):Safety requirements for construction and performance of shear valvesPart 41):Safety requirements for construction and performance of swivels for use on metering pumps anddispensersAnnex A is normative. Annex B is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
1) In course of preparation.



EN 13617-1:2004 (E)5IntroductionThis document is a type C standard as stated in EN 1070.The machinery concerned and the extent to which hazards, hazardous situations and events are covered areindicated 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, theprovisions of this type C standard take precedence over the provisions of the other standards, for machines thathave 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).



EN 13617-1:2004 (E)61 ScopeThis European Standard applies to metering pumps, dispensers and remote pumping units to be installed at petrolfilling stations, designed to dispense liquid fuels into the tanks of motor vehicles, boats and light aircraft and intoportable containers at flow rates up to 200 l-1, and intended for use and storage at ambient temperaturesbetween -20 °C and +40 °C. Additional measures can be required for use and storage at temperatures outside thisrange and is to negotiate between the manufacturer and its client.This European Standard deals with all significant hazards, hazardous situations and events relevant to meteringpumps, dispensers and remote pumping units, when they are used as intended and under the conditions foreseenby the manufacturer (see clause 4).This European Standard specifies selection of equipment and construction and performance requirements forsafety aspects.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.This European Standard is not applicable to metering pumps, dispensers and remote pumping units which aremanufactured before the date of publication of this document by CEN.NOTELiquefied petroleum gas (LPG) is not a liquid fuel in the sense of this European Standard.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 228, Automotive fuels — Unleaded petrol — Requirements and test methods. EN 954-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design.EN 1050:1996, Safety of machinery — Principles for risk assessment.EN 1070:1998, Safety of machinery — Terminology.EN 1360, Rubber hoses and hose assemblies for measured fuel dispensing — Specification.EN 12874, Flame arresters — Performance requirements, test methods and limits for use.EN 13012, Petrol filling stations — Construction and performance of automatic nozzles for use on fuel dispensers.EN 13463-1:2001, Non-electrical equipment for potentially explosive atmospheres — Part 1: Basic method andrequirements.prEN 13483, Hoses and hose assemblies with internal vapour recovery for measured fuel dispensing systems —Specification.EN 50014, Electrical apparatus for potentially explosive atmospheres — General requirements.



EN 13617-1:2004 (E)7EN 50018:2000, Electrical apparatus for potentially explosive atmospheres — Flameproof enclosures „d“.EN 50019:2000, Electrical apparatus for potentially explosive atmospheres — Increased safety „e“.EN 50021, Electrical apparatus for potentially explosive atmospheres — Type of protection „n“.EN 60079-10, Electrical apparatus for explosive gas atmospheres — Part 10: Classification of hazardous areas(IEC 60079-10:1995).EN 60079-14, Electrical apparatus for explosive gas atmospheres — Part 14: Electrical installations in hazardousareas (other than mines) (IEC 60079-14:1996).EN 60204-1:1997, Safety of machinery — Electrical equipment of machines — Part 1: General requirements(IEC 60204-1:1997).EN 60529, Degrees for protection provided by enclosures (IP code) (IEC 60529:1989).EN 60730-2-10, Automatic electrical controls for household and similar use — Part 2: Particular requirements formotor starting relays (IEC 60730-2-10:1991, modified).EN 60947-3, Low-voltage switchgear and controlgear — Part 3: Switches, disconnectors, switch-disconnectors andfuse-combination units (IEC 60947-3:1999).EN 60950-1, Information technology equipment — Safety — Part 1: General requirements (IEC 60950-1:2001, modified).EN ISO 1182, Reaction to fire tests for building products — Non-combustibility test (ISO 1182:2002).EN ISO 12100-1:2003, Safety of machinery - Basic concepts, general principles for design - Part 1: Basicterminology, methodology (ISO 12100-1:2003.EN ISO 12100-2:2003, Safety of machinery - Basic concepts, general principles for design - Part 2: Technicalprinciples (ISO 12100-2:2003)ISO 11925-3, Reaction to fire tests — Ignitability of building products subjected to direct impingement of flame —Part 3: Multi-source test.HD21.13 S1, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V — Part 13: Oilresistant PVC sheathed cables with two or more conductors.HD22.4 S3, Rubber insulated cables of rated voltages up to and including 450/750 V — Part 4: Cords and flexiblecables.3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 1070:1998 and the followingapply.3.1air and/or vapour separatordevice used for continuously separating and removing air or gases contained in the liquid3.2delivery hose assemblyflexible delivery system to which the nozzle is connected3.3column extensionfabrication extending upwards from a metering pump/dispenser hydraulic housing



EN 13617-1:2004 (E)83.4metering pumpmeasuring system containing its own pumping system to draw and deliver liquid fuel from a supply tank or tanksinto the tanks of motor vehicles, boats and light aircraft and into portable containers3.5dispensermeasuring and delivery system similar to that of a metering pump but without an integral pumping system3.6multi product metering pump/dispenserunit designed to deliver liquid fuels where the customer can choose from more than one product, this may includesystems where the fuel delivered is a mix of more than one base fuel3.7remote pumping unitsuction pump assembly mounted remotely from a dispenser3.8filling stationestablishment providing for the delivery of liquid fuels into the tanks of motor vehicles, boats and light aircraft andinto portable containers3.9hazardous areaarea in which an explosive gas atmosphere is present, or may be expected to be present, in quantities such as torequire special precautions for the construction, installation and use of apparatus3.10non-hazardous areaaccording to EN 60079–103.11metering unitdevice for continuously measuring the amount of liquid fuels delivered3.12safe-breakaccording to prEN 13617–23.13type of protectionthe specific measures applied to electrical apparatus to avoid ignition of a surrounding explosive atmosphere[EN 50014:1997 A1/A2:1999]3.14metering pump/dispensers hydraulic housinghousing which provides physical protection to the liquid and/or vapour equipment3.15automatic delivery nozzle (nozzle)according to EN 130123.16vapour recovery nozzleaccording to EN 13012



EN 13617-1:2004 (E)93.17nozzle bootlocation, normally a partially enclosed housing, where the nozzle or vapour recovery nozzle is stored when not inuse3.18nozzle sensordevice detecting the nozzle position in the nozzle boot3.19vapour barriersealing system to limit hazardous areas3.20shear valve (impact check valve)normally open valve(s), activated by impact and heat, which closes to prevent flow from a pressure source andremains closed after activation3.21sight glassdevice to allow
checking that all, or part, of the measuring system is completely filled with liquid3.22vapour recovery systemsystem in and attached to the metering pump/dispenser to feed back the vapours displaced from the fuel tank andled back into the vapour return lines to the storage tank3.23vapour pumppump positioned in the vapour recovery system to supply vacuum for vapour suctioning3.24screenperforated cladding fabrication which may be provided to enhance the visual appearance of a pump or dispenser orto provide another related function3.25vapour pipetubing of the vapour recovery system, excluding the vapour recovery delivery hose assembly and vapour recoverynozzle3.26retraction systemsystem to assist the stowage of delivery hose assembly or vapour recovery delivery hose assembly3.27hose cassetteseparate assembly primarily for the storage of delivery hose assembly(s) or vapour recovery delivery hoseassembly(s)3.28normal operationsituation when the equipment, protective systems, and components perform their intended function within theirdesign parameters (see also 5.2.2.a) of EN ISO 12100-1:2003))NOTEMinor release of flammable material may be part of normal operation. For example, releases of substances fromseals which rely on wetting by the fluid which is being pumped are considered to be minor releases.NOTEFailures (such as a breakdown of pump seals, flange gaskets or releases of substances caused by accidents) whichinvolve repair or shut-down are not considered to be part of normal operation. [see EN 1127–1:1997]



EN 13617-1:2004 (E)103.29claddingexternal panels that serve no structural, load bearing, purpose but which contribute to the physical protection of thecontents of the housing3.30vapour trapunventilated part of a structure where vapours can accumulate creating an area of greater hazard than itsimmediate surroundings3.31preset delivery (preset)delivery where the maximum volume (cost) for that delivery is fixed, either directly at the metering pump/dispenseror remote from the metering pump/dispenser, before the delivery commences3.32preset slowdownlast part of a preset delivery where the flow rate is limited by the metering pump/dispenser to allow accuratecompletion of the delivery3.33flow ratevolume flow delivered, in l×min-1or m3×h-1under normal working conditions3.34potential ignition sourceany part of a process that is able to cause an ignition of an explosive atmosphere3.35high hose inlet jointdelivery hose assembly connection at a location on equipment that will be at a height greater than 2 m aboveground level when the equipment is installed3.36de-mountable jointjoint which is designed to be assembled and disassembled3.37satellite delivery systemremote delivery system connected to a metering pump/dispenser3.38check valvenormally closed, opened by flow of liquid in normal working conditions3.39catastrophic failureirreversible damage resulting in an unsafe condition3.40routine testtest performed on each unit on completion of manufacture3.41powering up sequenceinternal sequence of events that follows the application of electrical power to the equipment



EN 13617-1:2004 (E)114 List of significant hazardsThis clause contains the significant hazards and hazardous situations, as far as they are dealt with in this EuropeanStandard, identified by a risk assessment significant for metering pumps, dispensers and remote pumping unitsused for the dispensing of liquid fuels, and which require action to eliminate or reduce risks.Before using this standard it is important to carry out a risk assessment of equipment to check that it has thehazards identified in this clause.



EN 13617-1:2004 (E)12Table 1 — List of significant hazardsSignificant hazards according to annex A ofEN 1050:1996Significant hazards, danger zones,hazardous situations or events, associatedwith the covered machinerySafetyrequirementNo.Type of hazard—Clauses of thisstandard1Mechanical hazards due to:— machine parts or work pieces, e.g.a) shape;b) relative location;c) mass and stability (potential energy of elements
which may move under the effect of gravity);d) mass and velocity (kinetic energy of elements in
controlled or uncontrolled motion);e) inadequacy of mechanical strength.f) moving partsDrive belts and/or shafts5.3.6.2,
7.31.9High pressure fluid injection or ejection hazardFluid in the hose, pipes etc.5.3.1.5,
5.3.1.6,5.3.3.2,
5.3.42Electrical hazards due to——2.1Contact of persons with live parts (direct contact)Electrical components e.g. motors, solenoidvalves, control systems, lighting5.3.22.2Contact of persons with parts which have becomelive under faulty conditions (indirect contact)Electrical components e.g. motors, solenoidvalves, control systems, lighting5.3.22.4Electrostatic phenomenaCharging of
belts, hoses and cladding5.3.4.1,
5.3.3.45.3.4.33Thermal hazards, resulting in:——3.1Burns and other injuries by
possible explosionsIgnition of possible explosive atmosphere byelectrical or non-electrical parts or electricalcharge5.1,
5.2,
5.37Hazards generated by materials and substances(and their constituent elements) processed or usedby the machinery——7.1Hazards from contact with or inhalation of harmfulfluids, gases, mists, fumes, and dustsTightness of components, pipes, hoses5.3.3,
5.3.4,



EN 13617-1:2004 (E)13Table 1 (concluded)Hazards according to EN 1050:1996, annex ASignificant hazards, danger zones,hazardous situations or events, associatedwith the covered machinerySafetyrequirement7.2Fire or explosion hazardSparks or high temperatures from electricaland non-electrical parts in combination withexplosive atmospheres5.1,
5.2,
5.310Unexpected start-up, unexpected overrun/overspeed(or any similar malfunction) from:——10.1Failure/disorder of the control systemExplosive atmospheres due to unexpectedliquid flow5.3.1.2,
5.3.4.2,10.2Restoration of energy supply after an interruptionExplosive atmospheres due to unexpectedliquid flow5.3.1.210.3External influences on electrical equipmentExplosive atmospheres due to unexpectedliquid flow5.3.1.2,
5.3.2.110.5Errors in the softwareExplosive atmospheres due to unexpectedliquid flow5.3.1.210.6Errors made by the operator (due to mismatch ofmachinery with human characteristics and abilities)Explosive atmospheres due to unexpectedliquid flow5.3.1.2,
5.3.1.3,7.211Impossibility of stopping the machine in the bestpossible conditionsExplosive atmospheres due to unexpectedliquid flow5.3.1.2,
5.3.1.35.3.4.213Failure of the power supplyExplosive atmospheres due to unexpectedliquid flow5.3.1.214Failure of the control circuitExplosive atmospheres due to unexpectedliquid flow5.3.1.1,
5.3.1.2,5.3.1.35.3.215Errors of fittingLeakage7.316Break-up during operationLeakage5.3.1.1, 5.3.1.4,5.3.1.6,5.3.4.717Falling or ejected objects or fluidsMoving parts and ejected fuel5.3.4
5.3.618Loss of stability / overturning of machineryStability of the dispenser in normal useVehicle movement5.3.1.6
6.1.55.3.4.7
7.35 Safety requirements and/or protective measures5.1 Explosion protection measures5.1.1 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 aminimum requirement for Explosion Group IIA with temperature class T3 as defined in EN 50014 and EN 13463–1.



EN 13617-1:2004 (E)145.2 Selection of equipment5.2.1 General5.2.1.1 Hazardous areas considered in this standard are only those created by an individual meteringpump/dispenser in open air.5.2.1.2 The use of the expression 'hazardous areas' and ‘zones’ within this standard is restricted to the selectionof 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 toEN 60529.5.2.1.4 Hazardous areas are created in and around metering pumps/dispensers as shown in 5.2. The extent ofhazardous 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) be as defined in EN 50021 for an enclosure totally immersed in a zone 2; orb) have a minimum level of ventilation such that the breathing area of the enclosure shall have at least 80 % ofit's surface in a non-hazardous area and shall meet the breathing requirements of 5.3.7.4 from inside theenclosure 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 withEN 60079–10. 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 thefollowing:a) on the external side of a housing constructed to not less than IP23 and used to constrain a zone 1 area, azone 2 area exists where category 3 equipment shall be used in the area as defined below (see Figure A.6):¾ limited upwards to 50 mm; and¾ 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, azone 2 area where category 3 equipment shall be used in the area as defined below (see Figure A.5):¾ 50 mm in all directions;¾ 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, nohazardous area exists (see Figure A.1 and Figure A.2)



EN 13617-1:2004 (E)155.2.1.8 The interior of the vapour containing parts of the vapour recovery system is zone 0, where category 1equipment shall be used.5.2.1.9 A continuous non-permeable pipe (non-permeable is less than 0,1 g/m2/day) provides separation ofhazardous 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 permeabilityAll fuel or
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