1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13922:2011Tanks for transport ofdangerous goods Serviceequipment for tanks Overfillprevention systems for liquidfuelsBS EN 13922:2011 BRITISH STANDARDNational forewordThis
2、British Standard is the UK implementation of EN 13922:2011. Itsupersedes BS EN 13922:2003 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee AUE/18, Tanks for the transport of dangerous goods.A list of organizations represented on this committee can beobta
3、ined on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 68993 2ICS 13.300; 23.020.20; 43.080.10Compliance with a British Standard cannot confer immunity fromlegal
4、 obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedBS EN 13922:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13922 September 2011 ICS 13.300; 23.020.20
5、 Supersedes EN 13922:2003English Version Tanks for transport of dangerous goods - Service equipment for tanks - Overfill prevention systems for liquid fuels Citernes destines au transport de matires dangereuses -Equipement de service pour citernes - Systmes antidbordement au remplissage pour carbura
6、nts ptroliers liquides Tanks fr die Befrderung gefhrlicher Gter - Bedienungsausrstung von Tanks - berfllsicherungssysteme fr flssige Kraft- und Brennstoffe This European Standard was approved by CEN on 18 June 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stip
7、ulate 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
8、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
9、 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, Sw
10、itzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. N
11、o. EN 13922:2011: EBS EN 13922:2011EN 13922:2011 (E) 2 Contents Page Foreword 4 Introduction . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 6 4 Functions 8 5 Major components . 8 5.1 Vehicle mounted equipment. 8 5.2 Equipment fitted at the gantry 9 6 Characteristics . 9 6.1 Overfil
12、l prevention system working characteristics 9 6.1.1 Overfill. 9 6.1.2 Bonding 9 6.1.3 Severe environmental condition 9 6.2 Sensors. 9 6.2.1 General 9 6.2.2 NTC thermistor, two-wire optic or other compatible sensor . 10 6.2.3 A five-wire optic or compatible sensor . 10 6.2.4 Sensor circuit . 10 6.2.5
13、 Response time . 10 6.2.6 Materials of construction 10 6.2.7 Electrical requirements . 10 6.3 Overfill prevention controller characteristics 11 6.3.1Interface . 11 6.3.2 Outputs . 11 6.3.3 Response time . 11 6.3.4 Status indicators 11 6.3.5 Materials of construction 11 6.3.6 Temperature range 11 6.3
14、.7 Electrical requirements . 11 6.4 Cable and plug interface characteristics 12 6.4.1 Plug . 12 6.4.2 Cable . 12 6.4.3 Temperature range 12 7 Testing 12 BS EN 13922:2011EN 13922:2011 (E) 3 7.1 General . 12 7.2 Type tests . 12 7.2.1 General . 12 7.2.2 Performance tests . 13 7.2.3 Electromagnetic comp
15、atibility (EMC) test 13 7.2.4 Fail safe testing . 13 7.3 Production tests 13 8 Marking . 13 9 Installation, operation and maintenance instructions . 13 Annex A (normative) Electrical specifications. 14 A.1 Electrical specifications . 14 A.2 Functional tests . 18 Bibliography 32 BS EN 13922:2011EN 13
16、922:2011 (E) 4 Foreword This document (EN 13922:2011) has been prepared by Technical Committee CEN/TC 296 “Tanks for transport of dangerous goods”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identica
17、l text or by endorsement, at the latest by March 2012, and conflicting national standards shall be withdrawn at the latest by March 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 respons
18、ible for identifying any or all such patent rights. This document supersedes EN 13922:2003. Significant changes have been made to the following sections since the last edition: requirement concerning bonding of the tank shell to the vehicles chassis added in 4.2; marking for equipment in hazardous a
19、reas updated and a note added in 6.3.7; referred standards updated. 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, Croatia, Cyprus, Czech Republic, Denmark,
20、Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 13922:2011EN 13922:2011 (E) 5 Introduction The overfill prev
21、ention system prevents the maximum filling level of a compartment of a tank vehicle from being exceeded by interrupting the filling operation on the loading site. It is not the function of an overfill prevention system to prevent volume or weight overloading. The function of the overfill prevention
22、system is the final means of containing loaded product within a compartment and preventing a dangerous condition. It is therefore of critical importance that all components have a high degree of reliability and that all European gantries provide a compatible system with the tank trucks. Not all the
23、components of an overfill prevention system are necessarily supplied by one manufacturer but may include cross-compatibility parts supplied by different manufacturers/suppliers. BS EN 13922:2011EN 13922:2011 (E) 6 1 Scope This European Standard specifies the following points regarding the minimum re
24、quirements for an overfill prevention system: functions; major components; characteristics; test methods. This European Standard is applicable to overfill prevention systems for liquid fuels having a flash point up to but not exceeding 100 C, excluding liquefied petroleum gas (LPG). The requirements
25、 apply to overfill prevention systems suitable for use at ambient temperatures in the range from - 20 C to + 50 C, subjected to normal operational pressure variations. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated referenc
26、es, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 590, Automotive fuels Diesel Requirements and test methods EN 60079-0:2009, Explosive atmospheres Part 0: Equipment General requirements (IEC 60079-0:2007
27、+ corrigendum Dec. 2010) EN 60079-11:2007, Explosive atmospheres Part 11: Equipment protection by intrinsic safety “i“ (IEC 60079-11:2006 + corrigendum Dec. 2006) EN 61000-6-2, Electromagnetic compatibility (EMC) Part 6-2: Generic standards Immunity for industrial environments (IEC 61000-6-2:2005) E
28、N 61000-6-4, Electromagnetic compatibility (EMC) Part 6-4: Generic standards Emission standard for industrial environments (IEC 61000-6-4:2006) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 overfill prevention system sensors or sensor circu
29、its, interface plug/socket, overfill prevention controller and all connecting wiring and cables 3.2 cross-compatibility ability of one part of the overfill prevention system to be able to work safely and satisfactorily with another part of the overfill prevention system although the parts are suppli
30、ed by different manufacturers 3.3 diesel according to EN 590 BS EN 13922:2011EN 13922:2011 (E) 7 3.4 dry sensor state of the sensor when not immersed in liquid 3.5 effective cycle time time period taken for the overfill prevention system to identify a fault condition and switch to a non-permissive 3
31、.6 fail-safe switching to a non-permissive if any single component failure in the overfill prevention system renders the overfill prevention system unable to detect an overfill or loss of earth bond 3.7 five-wire system uses five wire interface signals for liquid level detection 3.8 gantry control s
32、ystem controls the loading of product into the transporting vehicle 3.9 gantry control system reaction time time period commencing when the overfill prevention controllers output changes to non-permissive and ending with the cessation of all product flow after the closure of the gantry control valve
33、 3.10 interface ten-pin socket connection between the transporting vehicle and the gantry 3.11 inter-operable ability of different parts of the overfill prevention system to operate together; the functional aspect of cross-compatibility 3.12 warm-up time period to switch to a permissive state after
34、plug connection is made to a vehicle socket with no sensor immersed in liquid 3.13 non-permissive output state of the overfill prevention controller which disables liquid delivery 3.14 overfill prevention controller device mounted at the gantry which connects to the transporting vehicle and which pr
35、ovides a permissive or non-permissive to the gantry control system 3.15 overfill prevention system response time period commencing when a sensor becomes wet and ending when the controller output switches to non-permissive 3.16 permissive output state of the overfill prevention controller which enabl
36、es liquid delivery BS EN 13922:2011EN 13922:2011 (E) 8 3.17 self-checking automatic and continuous checking of the integrity of an overfill prevention systems components to verify its ability to perform its minimum functions 3.18 sensor device and any associated circuit mounted on or in a transporti
37、ng vehicles compartment and connected to interface socket which provides the wet or dry signal to the overfill prevention controller 3.19 sensor circuit sensor not directly wired to the interface socket but using intermediate components/electronics to transfer the sensor output to the interface sock
38、et 3.20 signal specification electronic wave form of the signal emitted by the controller NOTE See Figure A.1. 3.21 two-wire system uses two-wire interface signals for liquid level detection 3.22 wet sensor state of a sensor just sufficiently submerged in liquid to initiate a change in output from p
39、ermissive to non-permissive 4 Functions 4.1 To prevent overfilling of the transporting vehicles compartment by providing a fail-safe output to a gantry control system. 4.2 To provide a fail safe monitored earth static bonding connection from the gantry to the transporting vehicles shell via a bondin
40、g connection to the transporting vehicles chassis. 4.3 To provide visual indication of the status of the overfill prevention system. 5 Major components 5.1 Vehicle mounted equipment The following equipment shall be installed on the vehicle as a minimum: one sensor or sensor circuit per compartment;
41、vapour recovery hose interlock switch; one 10 pin socket; wiring to the sensors; static earth bonding provision. BS EN 13922:2011EN 13922:2011 (E) 9 5.2 Equipment fitted at the gantry The following equipment shall be installed at the loading gantry as a minimum: overfill prevention controller; one 1
42、0 pin plug and cable for connection to vehicle socket. 6 Characteristics 6.1 Overfill prevention system working characteristics 6.1.1 Overfill The overfill prevention system shall be an electronic system, gantry based and gantry operated. The interface wiring shall be suitable for a two-wire or a fi
43、ve-wire overfill prevention system and the gantry based controller shall automatically detect the difference between either overfill prevention system through a standardized 10 pin plug and socket see Figures A.2 and A.3 and perform its functions. Electrical specifications for the interface are incl
44、uded in Annex A. If no wet sensor or system fault is detected, the controller shall give a permissive to permit loading to begin. Upon an overfill condition or the detection of any overfill prevention system or controller fault, the controller shall switch to non-permissive. The overfill prevention
45、system shall be fail safe and shall be self-checking. The effective cycle time between self-checks shall be less than the overfill response time. The overfill prevention response time shall not exceed 700 ms. The overfill prevention system shall be capable of handling up to and including the followi
46、ng number of compartments for each type of installation: two-wire system 8 compartments; five-wire system 12 compartments. 6.1.2 Bonding The overfill prevention system shall provide an earth static bonding connection from the gantry to the vehicle chassis via the cable and connection plug and socket
47、 and shall continuously verify this connection throughout the loading operation. Should any fault be detected or the electrical resistance of the connection exceed a maximum of 10 k, the gantry controller shall switch to non-permissive. 6.1.3 Severe environmental condition Where the overfill prevent
48、ion system is subjected to temperatures outside the specified temperature range all applicable temperature values shall be extended. All other requirements shall remain unchanged. 6.2 Sensors 6.2.1 General Any of the following types of sensors may be used: BS EN 13922:2011EN 13922:2011 (E) 10 NTC th
49、ermistor, two-wire optic or other compatible device; five-wire optic or other compatible device; sensor circuit. 6.2.2 NTC thermistor, two-wire optic or other compatible sensor Thermistor sensors shall have a negative temperature coefficient (NTC) and shall work at any temperature in the range from 20 C to + 50 C. Thermistor sensors have a warm-up time which shall not exceed 75 s with the thermistor sensor at an ambient temperature of 20 C. NOTE Optic sensors have a negligible warm-up ti
