1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13617-2:2012Petrol filling stationsPart 2: Safety requirements for construction and performance of safe breaks for use on metering pumps and dispensersBS EN 13617-2:2012 BR
2、ITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13617-2:2012. It supersedes BS EN 13617-2:2004, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e P V E / 3 9 3 / 4 , M e t e r i n g p u m p s a n d d i
3、s p e n s e r s 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 Institut
4、ion 2012Published by BSI Standards Limited 2012ISBN 978 0 580 71239 5 ICS 75.200 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2012.Amendments issued
5、since publicationDate T e x t a f f e c t e dBS EN 13617-2:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13617-2 March 2012 ICS 75.200 Supersedes EN 13617-2:2004English Version Petrol filling stations - Part 2: Safety requirements for construction and performance of safe breaks for use on
6、 metering pumps and dispensers Stations-service - Partie 2: Exigences de scurit relatives la construction et aux performances des raccords cassants utiliss pour les distributeurs de carburant Tankstellen - Teil 2: Sicherheitstechnische Anforderungen an Bau- und Arbeitsweise von Abreikupplungen fr Za
7、pfsulen und druckversorgte Zapfsulen This European Standard was approved by CEN on 28 January 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-
8、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 transl
9、ation 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
10、, 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 COMIT EUROPEN DE NORMALISATION EUROPISC
11、HES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13617-2:2012: EBS EN 13617-2:2012EN 13617-2:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative re
12、ferences 43 Terms and definitions .54 Explosion protection measures .55 Construction .55.1 General 55.2 Hose breaks 65.3 Inlet threads 65.3.1 Safe break type 1 .65.3.2 Safe break type 2 .66 Physical properties 77 Operational requirements .88 Overview of tests .99 Information for use . 109.1 General
13、. 109.2 Marking and instruction . 10Annex A (normative) General requirements of test 11A.1 General . 11A.2 Tightness test 1 . 11A.3 Pressure separation test 1 . 11Annex B (normative) Tests 12B.1 Test liquid 12B.2 Fuel compatibility pre-conditioning 12B.3 Pre-conditioning mechanical impact test of re
14、-usable safe breaks 12B.4 Tightness test 2 . 12B.5 Pressure separation test 2 . 13B.6 Pressure test . 13B.7 Axial separation force test 1 13B.8 Axial separation force test 2 to nozzle breaks and pump breaks 13B.9 Non-axial separation force test 1 to nozzle breaks and pump breaks 14B.10 Non-axial sep
15、aration force test 2 to nozzle breaks and pump breaks 14B.11 Axial separation force test 3 14B.12 Axial separation force test 4 14B.13 Liquid release test 14B.14 Re-connection test 1 15B.15 Re-connection test 2 15B.16 Electrical resistance test 15Annex C (informative) Environmental aspects 16Annex Z
16、A (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 94/9/EC 18Bibliography . 19BS EN 13617-2:2012EN 13617-2:2012 (E) 3 Foreword This document (EN 13617-2:2012) has been prepared by Technical Committee CEN/TC 393 “Equipment for tanks and filling
17、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 September 2012, and conflicting national standards shall be withdrawn at the latest by September
18、 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 13617-2:2004. This document has been prepared under
19、 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 Directive(s), see informative Annex ZA, which is an integral part of this document. According to edition EN 13617-2:2004 the fo
20、llowing fundamental changes are given: a new note at the end of the scope: Fuels other than of Explosion Group IIA are excluded from this European Standard added; informative Annex C concerning environmental aspects added. The present standard is composed of the following parts: Part 1: Safety requi
21、rements 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:
22、 Safety requirements for construction and performance of swivels for use on metering pumps and dispensers. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cro
23、atia, 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 the United Kingdom. BS EN 13617-2:2012E
24、N 13617-2:2012 (E) 4 1 Scope This European Standard specifies safety requirements for the construction and performance of safe breaks to be fitted to metering pumps and dispensers installed at filling stations and used to dispense liquid fuels into the tanks of motor vehicles, boats and light aircra
25、ft and into portable containers at flow rates up to 200 l min-1. The requirements apply to safe breaks at ambient temperatures from 20 C to +40 C with the possibility for an extended temperature range. It pays particular attention to electrical, mechanical and hydraulic characteristics of, and elect
26、rical apparatus incorporated within or mounted on, the safe break. This European Standard applies mainly to hazards related to the ignition of liquid fuels being dispensed or their vapour. This European Standard also addresses electrical and mechanical hazards. NOTE 1 This European Standard does not
27、 apply to equipment for use with liquefied petroleum gas (LPG) or liquefied natural gas (LNG) or compressed natural gas (CNG). NOTE 2 Fuels other than of Explosion Group IIA are excluded from this European Standard. 2 Normative references The following documents, in whole or in part, are normatively
28、 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 metho
29、ds EN 1127-1, Explosive atmospheres Explosion prevention and protection Part 1: Basic concepts and methodology EN 1360, Rubber and plastic hoses and hose assemblies for measured fuel dispensing systems Specification EN 13463-1:2009, Non-electrical equipment for use in potentially explosive atmospher
30、es 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 prEN 13617-1:2010, Petrol filling stations Part 1: Safety requirements for the construction and performance of metering pum
31、ps, dispensers and remote pumping units EN 60079-0, Explosive atmospheres Part 0: Equipment General requirements EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation (ISO 228-1) EN ISO 1825, Rubber hoses and hose assemblies
32、 for aircraft ground fuelling and defuelling Specification (ISO 1825) EN ISO 8031:2009, Rubber and plastics hoses and hose assemblies Determination of electrical resistance and conductivity (ISO 8031:2009) ISO 261, ISO general-purpose metric screw threads General plan ISO 965-2, ISO general purpose
33、metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and internal screw threads Medium quality ISO 11925-3, Reaction to fire tests Ignitability of building products subjected to direct impingement of flame Part 3: Multi-source test BS EN 13617-2:2012EN 13617-2:2012 (E
34、) 5 3 Terms and definitions For the purposes of this document, the terms and definitions given in prEN 13617-1:2010 and the following apply. 3.1 safe break device to minimize fuel spillage and to stop fuel flow achieved by separation between nozzle and metering pump or dispenser within a defined ran
35、ge of forces 3.2 safe break type 1 safe break constructed for liquid lines only 3.3 safe break type 2 safe break constructed for liquid lines combined with vapour recovery lines 3.4 nozzle break safe break fitted directly into the nozzle inlet, or integral with the nozzle 3.5 hose break safe break f
36、itted within the delivery hose circuit 3.6 pump break safe break fitted directly to the fixed hydraulics 3.7 re-usable safe break safe break that, once operated, may be re-assembled for further use 3.8 non re-usable safe break safe break that, once operated, cannot be re-assembled for further use 4
37、Explosion protection measures 4.1 Explosion protection measures shall be taken in accordance with EN 11271 and Annex B of prEN 13617-1:2010. 4.2 The safe break shall be explosion protected and shall be Category 2 in accordance with EN 134631. The vapour path of a vapour recovery safe break shall be
38、Category 1 in accordance with EN 134631. The safe break shall fulfil the requirements for temperature class T3 and Group IIA to EN 60079-0 or EN 134631. 5 Construction 5.1 General 5.1.1 All electrical and non-electrical equipment and components, intended for use in potentially explosive atmospheres,
39、 shall be designed and constructed according to good engineering practice and in conformity with the required categories for group II equipment to ensure avoidance of any ignition source. To classify the category of the equipment it shall be subjected to an ignition hazard assessment in accordance w
40、ith 5.2 of EN 13463-1:2009. 5.1.2 All materials used in the construction 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 dem
41、onstrated by manufacturers declaration and compliance with the tests B.1 to B.16 inclusive. BS EN 13617-2:2012EN 13617-2:2012 (E) 6 5.1.3 Light alloys when used shall conform to the requirements of 6.4.4.2 of EN 134631:2009. If other specifications for explosion protected equipment impose more strin
42、gent requirements then the more stringent requirement shall apply. 5.1.4 Outside surfaces likely to be handled shall be free of sharp edges. 5.1.5 If protective covers are fitted they shall be constructed such that they allow ventilation and evaporation of fuel even if some shrinkage occurs. They sh
43、all not affect the performance of the safe break. 5.1.6 Safe breaks Type 1 and Type 2, except nozzle breaks, when operated shall close liquid lines both up stream and down stream of the break. 5.1.7 For safe breaks Type 2 it is not required to close vapour lines either side of the break. A means to
44、close off vapour lines may be included. 5.1.8 On re-usable safe breaks, the sections that break away shall be constructed so that the means of reconnection cannot be damaged by impacts suffered as a result of separation. 5.1.9 The construction shall be such that on reconnection of a re-usable device
45、, or attempted reconnection of a non re-usable device, fluid shall not be sprayed out during the reconnection action. 5.2 Hose breaks Hose breaks which incorporate hose shall use hose conforming to EN 1360, EN ISO 1825 or EN 13483. 5.3 Inlet threads 5.3.1 Safe break type 1 Form 1 threads for the hos
46、e connection shall be parallel threads according to EN ISO 2281 according to Table 1. The sealing surfaces of the internal and external threads shall be designed such that they are suitable for use with an appropriate seal. Table 1 Form 1 Thread specifications Nominal inlet size inch FEMALE THREADSa
47、 MALE THREADSb Maximum thread depth mm Minimum thread length mm ” 12,5 11,01” 15,5 14,01 1/4” 15,5 17,5 1 1/2” 15,5 18,0 aThe thread depth is measured from the outer to the metallic inner sealing face. b The stated minimum lengths does only apply if the female thread of the hose fitting includes an
48、inner flat gasket. In case of using an outer flat gasket, the male threads may be shorter as stated.5.3.2 Safe break type 2 Threads shall comply with Form 2: Form 2. M 34 1,5 female or male according to ISO 261 and ISO 9652. The total thread depth shall be not less than 15,0 mm. The inlet end shall
49、be controlled to a diameter of (35,0 0,05) mm for a length (6,0 0,1) mm. BS EN 13617-2:2012EN 13617-2:2012 (E) 7 6 Physical properties The physical properties of the safe break shall be according to Table 2. Table 2 Physical properties of safe break PROPERTY REQUIREMENT TEST METHOD Electrical resistance of inlet thread to outlet thread when fully
