EN 50223-2015 en Stationary electrostatic application equipment for ignitable flock material - Safety requirements.pdf

1、BSI Standards PublicationBS EN 50223:2015Stationary electrostaticapplication equipment forignitable flock material Safety requirementsBS EN 50223:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50223:2015. It supersedes BS EN 50223:2010 which is withdrawn.T

2、he UK participation in its preparation was entrusted to Technical Committee EXL/31/-/1, Electrostatic spray guns.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.

3、Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 83329 8 ICS 29.260.20; 87.100 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the

4、 authority of the Standards Policy and Strategy Committee on 31 July 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 50223 May 2015 ICS 29.260.20; 87.100 Supersedes EN 50223:2010 English Version Stationary electrostatic

5、 application equipment for ignitable flockmaterial - Safety requirements Matriel fixe de projection lectrostatique de flock inflammable - Exigences de scurit Stationre elektrostatische Flockanlagen fr entzndbaren Flock - Sicherheitsanforderungen This European Standard was approved by CENELEC on 2015

6、-04-13. CENELEC 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 o

7、btained on application to the CEN-CENELEC Management Centre or to any CENELEC 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 CENELEC member into its own language and notifie

8、d to the CEN-CENELEC Management Centre has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Gree

9、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electro

10、techniqueEuropisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50223:2015 E BS EN 50223:2015Contents Page Foreword . 4

11、Introduction . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 8 4 List of significant hazards 15 4.1 General . 15 4.2 Mechanical hazards . 15 4.3 Electrical hazards 16 4.4 Hazards generated by noise . 16 4.5 Hazards resulting from dangerous substances . 17 4.6 Fire hazards 17 4.7 Exp

12、losion hazards . 17 4.8 Hazards by malfunctions of the control system 18 4.9 Hazards by failure of energy supply 18 5 Safety requirements and/or measures 18 5.1 General requirements for electrostatic flock application systems 18 5.2 Categorisation of electrostatic flock application systems 18 5.3 Eq

13、uipment requirements for flock application systems of category 3 19 5.4 Requirements for the high voltage supply . 22 5.5 Requirements for the flock application booth 22 6 Testing 31 6.1 Type test of the high voltage cables 31 6.2 Routine tests of the stationary equipment . 31 6.3 Testing of the req

14、uirements for the flock application booth 33 7 Information for use 35 7.1 General . 35 7.2 Instruction manual. 35 7.3 Marking of the flock application system . 40 7.4 Marking of the flock application booth 41 Annex A (normative) Determination of the concentration of ignitable flock material in terms

15、 of LEL 42 A.1 Calculation . 42 A.2 Examples of calculation Determination of concentration of ignitable flock material . 43 Annex B (normative) Determination of concentration of organic solvents . 45 B.1 Calculation . 45 B.2 Example for calculation - Determination of minimum exhaust volume flow base

16、d on a design concentration value 46 Annex C (informative) Classification of areas with potential explosion hazard . 47 Annex D (informative) Example of marking 48 Annex ZY (informative) Significant changes between this European Standard and EN 50223:2010 49 Annex ZZA (informative) Coverage of Essen

17、tial Requirements of EU Directive 2006/42/EC 51 EN 50223:2015 (E)BS EN 50223:2015Annex ZZB (informative) Coverage of Essential Requirements of EU Directive 94/9/EC 52 Bibliography 53 Figure Figure C.1 Flock application booth with closed flock recovery system . 47 Tables Table 1 Electrostatic flock a

18、pplication systems for ignitable flock Overview 19 Table 2 Requirements for electrostatic flock application systems of category 3 for ignitable flock . 20 Table 3 Required minimum ignition protection categories inside and within the vicinity of flock systems 28 Table 4 Survey of tests 32 Table 5 Tes

19、t intervals . 39 Table ZY.1 Significant changes between this European Standard and EN 50223:2010 49 EN 50223:2015 (E)BS EN 50223:2015Foreword This document (EN 50223:2015) has been prepared by CLC/SC 31-8 “Electrostatic painting and finishing equipment“ from CLC/TC 31 “Electrical apparatus for poten

20、tially explosive atmospheres“. This document supersedes EN 50223:2010. The following dates are proposed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-04-13 latest date by which the national st

21、andards conflicting with this document have to be withdrawn (dow) 2018-04-13 The State of the Art is included in Annex ZY “Significant changes between this European Standard and EN 50223:2010“. Attention is drawn to the possibility that some of the elements of this document may be the subject of pat

22、ent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For

23、 the relationship with EU Directives 94/9/EC and 2006/42/EC, see informative Annexes ZZA and ZZB, which are an integral part of this document. EN 50223:2015 (E)BS EN 50223:2015Introduction In the process of electrostatic flock application, the flock is transported from a reservoir through an electri

24、cal field either by gravitational forces or an air stream or electrostatic forces. As the flock particles disperse due to the flock application device and/or the electric field, they are electrostatically charged by means of high voltage of some tens of kilovolts aligned and, in the form of a cloud,

25、 encased by and deposited on the grounded workpiece. They stick to those workpieces, which are covered with an adhesive layer. The adhesive is set at room temperature or by heating. Flock particles not deposited on the workpiece (overspray) are upcast or removed by the exhaust ventilation system, by

26、 brushes or other devices into the flock recovery system. EN 50223:2015 (E)BS EN 50223:20151 Scope 1.1 This European Standard specifies requirements for stationary electrostatic flock application equipment which is designed for applying ignitable flock which may form explosive atmospheres in the flo

27、ck application area. For stationary electrostatic application devices for ignitable flock of type B-F, EN 50050-3 is applicable in addition to this standard. This European Standard also specifies the constructional requirements for a safe operation of the stationary equipment of flock application bo

28、oths, including the electrical installations and the accessories. This European Standard deals with all significant hazards, hazardous situations and events relevant to flock application booths, when they are used as intended and under conditions which are foreseeable as malfunction by the manufactu

29、rer (see Clause 4). 1.2 This European Standard considers three types of electrostatic flock systems. For more details, see Table 1. 1.3 This European Standard deals with those hazards occurring during stationary automatic electrostatic flocking. Among these hazards are, above all, ignition hazards o

30、f the generated explosive atmosphere and hazard to persons. 1.4 The stationary equipment dealt with in this European Standard is considered to be equipment of group II, category 3D for the use in areas with potential explosion hazards of zone 22. 1.5 This European Standard is not applicable for floc

31、k systems in which mixtures of solvent vapours in air occur with a concentration of 20 % of the LEL, flock systems operated with AC high voltage, hand-held spraying equipment for ignitable flock (see EN 50050-3), the application system for liquid or pasty substances (e.g. adhesives, primer), the cle

32、aning of flock application booths, the storage and handling of ignitable substances outside the coating plant. 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 ed

33、ition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 953, Safety of machinery - Guards - General requirements for the design and construction of fixed and movable guards EN 981, Safety of machinery - System of auditory and

34、visual danger and information signals EN 1037, Safety of machinery - Prevention of unexpected start-up EN 1081, Resilient floor coverings - Determination of the electrical resistance EN 1149-5, Protective clothing - Electrostatic properties - Part 5: Material performance and design requirements EN 5

35、0223:2015 (E)BS EN 50223:2015EN 13463-1:2009, Non-electrical equipment for use in potentially explosive atmospheres - Part 1: Basic method and requirements EN 13478, Safety of machinery - Fire prevention and protection EN 13501-1, Fire classification of construction products and building elements -

36、Part 1: Classification using data from reaction to fire tests EN 14373, Explosion suppression systems EN 14460, Explosion resistant equipment EN 14462, Surface treatment equipment - Noise test code for surface treatment equipment including its ancillary handling equipment - Accuracy grades 2 and 3 E

37、N 14491, Dust explosion venting protective systems EN 14797, Explosion venting devices EN 14986, Design of fans working in potentially explosive atmospheres EN 15089, Explosion isolation systems EN 50050-3, Electrostatic hand-held spraying equipment - Safety requirements - Part 3: Hand-held spraying

38、 equipment for ignitable flock EN 60079-0, Explosive atmospheres - Part 0: Equipment - General requirements (IEC 60079-0) EN 60204-1, Safety of machinery - Electrical equipment of machines - Part 1: General requirements (IEC 60204-1) EN 60529, Degrees of protection provided by enclosures (IP code) (

39、IEC 60529) EN 61340-4-1, Electrostatics - Part 4-1: Standard test methods for specific applications - Electrical resistance of floor coverings and installed floors (IEC 61340-4-1) EN 61508-3, Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3: Software

40、 requirements (IEC 61508-3) EN 62061:2005, Safety of machinery - Functional safety of safety-related electrical, electronic and programmable electronic control systems (IEC 62061:2005) EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12

41、100:2010) EN ISO 13856 (all parts), Safety of machinery - Pressure-sensitive protective devices (ISO 13856) EN ISO 13857, Safety of machinery - Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857) EN ISO 13849-1, Safety of machinery - Safety-related parts of co

42、ntrol systems - Part 1: General principles for design (ISO 13849-1) EN ISO 14122-2, Safety of machinery - Permanent means of access to machinery - Part 2: Working platforms and walkways (ISO 14122-2) EN 50223:2015 (E)BS EN 50223:2015EN ISO 14122-3, Safety of machinery - Permanent means of access to

43、machinery - Part 3: Stairs, stepladders and guard-rails (ISO 14122-3) EN ISO 14122-4, Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders (ISO 14122-4) EN ISO 20344, Personal protective equipment - Test methods for footwear (ISO 20344) 3 Terms and definitions For the

44、 purposes of this document, the following terms and definitions apply. 3.1 stationary electrostatic application device for ignitable flock flock application booths or flock application areas, in which the electrostatic application equipment is either fixed stationary (e.g. on supports) and is operat

45、ed automatically or is guided by reciprocators (e.g. robots). In general, the equipment comprises the following units: flock application booth; flock application area; flock application system; flock recovery system; fixtures for workpieces; conveyors; grounding devices; forced ventilation; fire pre

46、vention and protection equipment; explosion protection equipment 3.2 flock application system devices for application of flock by means of electrostatic charge. In general, the flock application system comprises the following units: device for the transport of flock; high voltage electrode; high vol

47、tage supply system; dosing device EN 50223:2015 (E)BS EN 50223:20153.3 high voltage supply system system comprising the following: low voltage section with devices for switching on and off the unit and for adjustment, control, regulation, limitation and monitoring of current and voltage, as well as

48、the required connecting cables; high voltage generator; high voltage switching device; high voltage cable; high voltage plug-and-socket connector 3.4 flock application area area, closed or not, in which the flock is applied to the workpieces by the electrostatic flock application system 3.5 flock ap

49、plication booth assembly of linked parts and devices like e.g.: forced ventilation by one or several fan(s); ducts of the forced ventilation; transport device for the flock; air filter and flock recovery system; measuring and control devices (e.g. interlocking of forced ventilation and flock application system); fire detection system and interlocking devices; explosion protection system; automatic cleaning system; air conditioning system; warning devices; electrical apparatus, j