1、BS EN 16652-1:2016LPG equipment and accessories Automotive LPG vehiclesworkshopsPart 1: Working areas and proceduresBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 16652-1:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of E
2、N 16652-1:2016. The UK participation in its preparation was entrusted to TechnicalCommittee PVE/19, LPG containers and their associated fittings. 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 nec
3、essary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 83537 7 ICS 43.060.40; 43.180 Compliance with a British Standard cannot confer immunity from legal obligations.This British
4、 Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 16652-1:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16652-1 May 2016 ICS 43.060.40; 43.180 English Ve
5、rsion LPG equipment and accessories - Automotive LPG vehicles workshops - Part 1: Working areas and procedures quipements GPL et leurs accessoires - Ateliers pour vhicules automobiles fonctionnant au GPL - Partie 1: Zones de travail et modes opratoires Flssiggas-Gerte und Ausrstungsteile - Werksttte
6、n fr Autogas-Nachrstsysteme - Teil 1: Arbeitsbereiche und Verfahren This European Standard was approved by CEN on 13 February 2016. 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 stan
7、dard 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 a
8、ny 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 Rep
9、ublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEA
10、N COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16652-1:2016 EBS EN
11、 16652-1:2016EN 16652-1:2016 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Working areas 7 4.1 General service working areas . 7 4.2 Dedicated LPG working areas . 7 4.2.1 General 7 4.2.2 Service pits 8 4.2.3 Equipment . 8 5
12、Procedures. 8 5.1 Procedures in case of an increased hazard 8 5.2 Prevention of overheating . 9 5.2.1 General 9 5.2.2 Treatment of an LPG vehicle in the paint booth. 9 5.3 Fuel unloading . 10 5.4 Gas-freeing 11 5.5 Work on the LPG system 11 5.6 Storage of unpurged containers . 11 5.7 LPG system deco
13、mmissioning . 12 5.8 Scrapping 12 5.9 Emergency measures 12 Annex A (informative) Dedicated LPG working area equipment 13 Annex B (informative) Fuel unloading methods 14 Annex C (informative) Container depressurising method . 20 Annex D (informative) Gas-freeing methods. 22 Annex E (informative) Eme
14、rgency measures guidelines 24 Annex F (informative) Leak detection methods . 27 Bibliography . 29 BS EN 16652-1:2016EN 16652-1:2016 (E) 3 European foreword This document (EN 16652-1:2016) has been prepared by Technical Committee CEN/TC 286 “Liquefied petroleum gas equipment and accessories”, the sec
15、retariat of which is held by NSAI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2016, and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is
16、 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the fol
17、lowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
18、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16652-1:2016EN 16652-1:2016 (E) 4 Introduction This European Standard does not purport to address all of the health and safety risks, if any, associated with its use. It is the re
19、sponsibility of the user to establish appropriate health and safety practices and to ensure compliance with any national legislative and regulatory obligations. Users should perform their own full risk assessment to address all of the health and safety risks, as required by national legislation. Tra
20、ining and competency requirements for personnel involved in the activities are not included in the scope of this standard but are planned to be addressed in a second part to this European Standard. This European Standard specifies the requirements for working areas and the procedures for the install
21、ation of LPG systems on vehicles and for the repairing and maintenance of vehicles equipped with LPG systems. This European Standard should be used for aspects not covered by the manuals provided by the manufacturers of LPG vehicles and/or retrofit systems. Protection of the environment is a key pol
22、itical issue in Europe and elsewhere, for CEN/TC 286 this is covered in CEN/TS 16765 2 LPG equipment and accessories - Environmental considerations for CEN/TC 286 standards, and this Technical Specification should be read in conjunction with this standard. It is recommended that users develop an env
23、ironmental management policy. For guidance see EN ISO 140213, EN ISO 14024 4 and EN ISO 14025 5. It has been assumed in the drafting of this European Standard that execution of its provisions is entrusted to appropriately qualified and experienced people. BS EN 16652-1:2016EN 16652-1:2016 (E) 5 1 Sc
24、ope This European Standard sets out the requirements for automotive LPG working areas and procedures, aimed at reducing the risk of fire and explosion of LPG when the following types of work or activity are carried out: a) equipping vehicles with an LPG system to use LPG for propulsion purposes; b)
25、maintenance, servicing and repairs to the LPG system; c) any other LPG vehicle maintenance, servicing or repairs not involving the LPG system. The operations described in items a) and b) above are undertaken in dedicated LPG working areas, whereas item c) is undertaken in general service working are
26、as. This Standard does not address how to equip a vehicle with an LPG retrofit system or how to repair or maintain an LPG vehicle. NOTE Such provisions are normally provided in the instruction manuals issued by the relevant manufacturers. 2 Normative references Not applicable. 3 Terms and definition
27、s For the purposes of this document, the following terms and definitions apply. 3.1 liquefied petroleum gas LPG low pressure liquefied gas composed of one or more light hydrocarbons which are assigned to UN 1011, UN 1075, UN 1965, UN 1969 or UN 1978 only and which consists mainly of propane, propene
28、, butane, butane isomers, butene with traces of other hydrocarbon gases Note 1 to entry: For automotive LPG specification, see EN 589 6. 3.2 competent person person which by combination of appropriate qualification, training, experience, and resources, is able to make objective judgments on the subj
29、ect 3.3 contents gauge device to indicate the liquid level or contents in a pressure vessel 3.4 remote-controlled service valve device that allows or interrupts the LPG supply to the vaporizer/pressure regulator 3.5 service valve valve for fluid off-take which is manually operated to provide a leak-
30、tight seal BS EN 16652-1:2016EN 16652-1:2016 (E) 6 3.6 gas-free less than 20 % of the lower explosive limit of LPG in air 3.7 disposal gas-freeing and discarding LPG pressure vessels either in the form of scrap metal or for use in non-pressure applications 3.8 purging displacing LPG with a non-flamm
31、able gas, steam or water or the reverse procedure 3.9 container pressure vessel used for the storage of automotive LPG 3.10 service container pressure vessel used for the storage within a workshop of automotive LPG unloaded from a container 3.11 LPG system installation for propulsion purposes consis
32、ting of an arrangement of container(s), safety device(s), pressure regulator(s), vaporiser(s), connection(s), valve(s), piping, tubing, hose, fitting(s) and devices intended to store, supply, monitor or control the flow of LPG excluding the engine 3.12 overfill protection device OPD device designed
33、to automatically reduce the filling rate to a minimal flow when the fill level reaches a predetermined amount Note 1 to entry: In automotive applications, the predetermined amount is 80 % of the water capacity. 3.13 hazardous area area in which an explosive atmosphere is or may be present, in a quan
34、tity such as to require special precautions for the construction and installation of equipment and use of apparatus 3.14 ignition source source of energy sufficient to ignite a flammable atmosphere Note 1 to entry: Includes naked flames, exposed incandescent material, sparks, electric welding arcs,
35、and electrical or mechanical equipment not approved for use in hazardous locations. 3.15 service pit hole in the ground providing standing access to the underside of a vehicle BS EN 16652-1:2016EN 16652-1:2016 (E) 7 3.16 electronic control unit ECU device that controls the electrical power supply to
36、 the remote-controlled service valves 3.17 on board diagnostic OBD system for emission control of the vehicle which has the capability of identifying the likely area of malfunction by means of fault codes stored in a computer memory 3.18 fixed liquid level gauge control device, such as a dip tube in
37、 combination with a vent valve to indicate when a predetermined liquid level has been reached or surpassed 4 Working areas 4.1 General service working areas This subclause applies to automotive working areas and servicing workshops which may be required to do work on any vehicle equipped with an LPG
38、 system but not on the LPG system itself (e.g. service station and lubrication bays, premises specializing in engine tuning, suspension, tyres or brakes and body repairs). The presence of a vehicle equipped with a normally operating LPG system within the workshop shall not require any special extens
39、ion of the normal ventilation, working space, and access to open space outside. 4.2 Dedicated LPG working areas 4.2.1 General 4.2.1.1 The requirements of this subclause apply to working areas where the equipping of vehicles with LPG systems, or the repairing and the maintenance of LPG systems are ca
40、rried out. The atmosphere within the working area shall be maintained within occupational exposure limits during and after the operations are completed. 4.2.1.2 Subclauses 4.2.1.3 to 4.2.1.8 apply when: the components of the LPG system involved in any of the following operations contain gas at a pre
41、ssure above atmospheric pressure; or the components of the LPG system involved in any of the following operations contain gas at a pressure less than or equal to atmospheric pressure and are not isolated from other parts of the system; or an increased hazard, as defined in 5.1.1, exists. 4.2.1.3 Whe
42、re the equipping of vehicles to operate on LPG, or the repairing and the maintenance of LPG system are carried out, a working area shall be identified through a risk assessment. The risk assessment will include hazardous zone classification in accordance with ATEX requirements and any necessary vent
43、ilation requirements. BS EN 16652-1:2016EN 16652-1:2016 (E) 8 NOTE For ATEX requirements see the relevant EU Directives (e.g. Directive 1999/92/EC 7 and 2014/34/EU 9) and their transposition in national legislation. 4.2.1.4 If the working area does not encompass the entire workshop, it is advisable
44、to clearly mark the designated working area(s) on the workshop floor. 4.2.1.5 In the working area, appropriate signage addressing the risks shall be displayed in accordance with national rules. 4.2.1.6 The floor level of the working area shall not constitute a depression in relation to the surroundi
45、ng ground contours and levels unless appropriate extraction arrangements and gas detection systems are in place. 4.2.1.7 The working area shall not include or provide access to lower areas such as depressions, sumps, basements, unventilated pits, descending stairs, ramps or openings into drainage sy
46、stems unless effectively sealed to prevent the ingress of LPG liquid or vapour. 4.2.1.8 The working area shall not be above any work space other than a properly ventilated service pit in accordance with provisions set out in 4.2.2. 4.2.2 Service pits In dedicated LPG working areas where service pits
47、 are used, the following requirements shall also apply: a) the pit shall be provided with a mechanical dilution ventilation system with the air flow sourced from the pit bottom and with the whole of the pit bottom being evenly air swept and without significant dead spots; b) the location and directi
48、on of entry and discharge of airstreams for fans and duct systems shall be selected to minimize contamination and hazard; c) the power supply to the service pit shall be configured in such a way that power is only available when the ventilation system is operational; d) electric equipment and lights
49、 used in pits shall be suitable for use in explosive atmospheres with LPG; e) the ventilation shall be suitable for use in explosive atmospheres with LPG; and f) the atmosphere at the pit bottom shall be monitored for explosive conditions and breathable air with an acoustic and visual alarm system. 4.2.3 Equipment The dedicated LPG working area should be provided with appropriate equipment, to ensure that the operators will be safe and the vehicle will be safe. A list of recommended equipment is provided in Annex A. 5 Procedures 5.1 Procedures in case
