EN 50059-2018 Electrostatic hand-held spraying equipment - Safety requirements - Hand-held spraying equipment for non-ignitable coating materials.pdf

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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Electrostatic hand-held spraying equipment Safety requirements Hand-held spraying equipment for non-ignitable coating materialsBS EN 50059:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50059 July 2018 ICS 87.

2、100 Supersedes EN 50059:1990 English Version Electrostatic hand-held spraying equipment - Safety requirements - Hand-held spraying equipment for non-ignitable coating materials quipement manuel de projection lectrostatique - Exigences de scurit - quipement manuel de projection de revtement ininflamm

3、able Elektrostatische Handsprheinrichtungen - Sicherheitsanforderungen - Handsprheinrichtungen fr nichtentzndbare Beschichtungsstoffe This European Standard was approved by CENELEC on 2018-01-02. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit

4、ions 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 CENELEC member. This European Standard exi

5、sts 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 notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the nat

6、ional electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Po

7、rtugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Sc

8、ience 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50059:2018 E National forewordThis British Standard is the UK implementation of EN 50059:2018. It supersedes BS EN 50059:1991, which is withdrawn.The UK

9、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. Users

10、are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 93523 7ICS 87.100Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the S

11、tandards Policy and Strategy Committee on 31 July 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 50059:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50059 July 2018 ICS 87.100 Supersedes EN 50059:1990 English Version Electrostatic hand-held spra

12、ying equipment - Safety requirements - Hand-held spraying equipment for non-ignitable coating materials quipement manuel de projection lectrostatique - Exigences de scurit - quipement manuel de projection de revtement ininflammable Elektrostatische Handsprheinrichtungen - Sicherheitsanforderungen -

13、Handsprheinrichtungen fr nichtentzndbare Beschichtungsstoffe This European Standard was approved by CENELEC on 2018-01-02. 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

14、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 CENELEC member. This European Standard exists in three official versions (English, French, German). A version in an

15、y other language made by translation under the responsibility of a CENELEC member into its own language and notified 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,

16、 Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

17、Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any

18、form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50059:2018 E BS EN 50059:2018EN 50059:2018 (E) 2 Contents Page European foreword 4 0 Introduction 6 1 Scope 8 2 Normative references 8 3 Terms, definitions and symbols 9 3.1 Terms and definitions . 9 3.2 Symbols 11 4 Requireme

19、nts for hand-held spraying equipment for non-ignitable liquid coating materials . 12 4.1 General requirements . 12 4.2 Requirements for the accessories . 14 5 Tests . 15 5.1 General . 15 5.2 General tests 15 5.2.1 Test of earth connections 15 5.2.2 Resistance test 15 5.2.3 Test of contact surface ar

20、ea 15 5.2.4 Test of OFF-position . 15 5.3 Conditioning test 15 5.3.1 Cable pull test and hose pull test 15 5.3.2 Impact test . 15 5.3.3 Drop test 16 5.4 Tests for electrical safety . 16 5.4.1 Measurement of the parameters high voltage and short-circuit current 16 5.4.2 Voltage test 16 5.4.3 Test of

21、the degree of protection of applicators . 16 5.5 Test of the peak current values of discharges IC (p) with their associated pulse durations ti . 16 5.6 Tests of the accessories . 17 5.6.1 Test of the degree of protection 17 5.6.2 Test of the coating material supply system . 17 6 Information for use

22、17 6.1 General . 17 6.2 Instruction manual. 17 6.2.1 General . 17 6.2.2 Cleaning, maintenance and repair 18 6.2.3 Test intervals of repeated tests . 18 6.2.4 Additional information . 18 6.3 Marking of electrostatic hand-held spraying equipment and associated control devices . 19 BS EN 50059:2018EN 5

23、0059:2018 (E) 3 6.3.1 Marking of applicators . 19 6.3.2 Marking of the associated control devices 19 6.3.3 Reduced marking 20 Annex A (normative) Test of a discharge with the peak current value IC (p) and the pulse duration ti (type test) . 21 Annex B (informative) Example for discharge test . 24 An

24、nex C (informative) Ignitability of water-based paints . 26 Annex D (informative) Quality assurance systems for electrostatic spraying equipment . 28 Annex ZZ (informative) Relationship between this European standard and the essential requirements of Directive 2006/42/EC aimed to be covered . 30 Bib

25、liography . 31 Tables Table 1 Test intervals 18 Table ZZ.1 Correspondence between this European Standard and Annex I of Directive 2006/42/EC 30 Figures Figure 1 Pulse duration - body current, ventricular fibrillation risk 12 Figure A.1 Equivalent circuit diagram . 22 Figure A.2 Schematic discharge c

26、urve . 23 Figure B.1 Discharge plot . 24 BS EN 50059:2018EN 50059:2018 (E) 4 European foreword This document (EN 50059:2018) has been prepared by Technical Committee CEN-CENELEC/TC 204 “Safety of electrostatic painting and finishing equipment”. The following dates are fixed: latest date by which thi

27、s document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2019-01-27 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2021-07-27 This document supersedes EN 50059:1990. EN 50059:201

28、8 includes the following significant technical changes with respect to EN 50059:1990: modification of the title of the standard; extension of introduction; extension of normative references; extension of terms and definitions; new arrangement, amendment and complement of the requirements for hand-he

29、ld spraying equipment for non-ignitable liquid coating materials; definition of requirements for safety functions; new arrangement, amendment and complement of tests for hand-held spraying equipment for non-ignitable liquid coating materials; new arrangement and extension of the information for use;

30、 definition of requirements for repeated tests; introduction of the normative Annex A “Test of a discharge with the peak current value IC (p) and the pulse duration ti (type test)“; introduction of the informative Annex B “Example for discharge test”; introduction of the informative Annex C “Ignitab

31、ility of water-based paints”; introduction of the informative Annex D “Quality assurance systems for electrostatic spraying equipment”; introduction of the informative Annex ZZ “Relationship between this European standard and the essential requirements of Directive 2006/42/EC aimed to be covered“. A

32、ttention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. BS EN 50059:2018EN 50059:2018 (E) 5 This document has been prepared under a mandate given to CENEL

33、EC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this document. BS EN 50059:2018EN 50059:2018 (E) 6 0 Introduction 0.1 Proces

34、s During the electrostatic coating process the non-ignitable liquid coating material is transported from a reservoir to an applicator where it is atomised by mechanical forces and by the influence of an electric field. The coating material is charged by high voltage of some 10 kV and a spray cloud i

35、s generated. The charged droplets of the coating materials are attracted by and applied to the earthed workpiece. Droplets of the coating material, which are not applied to the workpiece (overspray) are removed by a suction device or by other means. After the coating process the coated workpieces ar

36、e introduced into a dryer or oven where a dry film of coating material is generated. 0.2 Fire hazards 0.2.1 Fire hazards can be caused by deposits of coating materials inside the spray booth, exhaust air ducts, the recovery system for coating materials, and filters. During operation, malfunctions or

37、 electrical faults may cause ignition of these residues. The propagation of the fire leads to hazards also in adjacent areas. 0.2.2 Particular attention should be paid to the prevention of electrostatic charges on different surfaces, which are in the vicinity of the spray cloud. This could apply bot

38、h to workpieces during the coating process or the reciprocating devices and the mounting parts of the spraying system, etc. 0.2.3 When spraying non-ignitable coating material, the formation of an explosive atmosphere is not likely to occur. Electrostatic application equipment for ignitable coating m

39、aterials are covered by EN 50050-1, EN 50050-2 and EN 50050-3. 0.3 Electric hazards 0.3.1 Electric shock (by direct or indirect contact) can be generated, for instance, by contact with live parts, which are not insulated for operational reasons, conductive parts, which are not connected to dangerous

40、 voltage during normal operation, but only in case of failure, insulated live parts with insufficient or damaged insulation due to external impact, charged passive parts with inadequate earthing. 0.3.2 Inadequate earthing may occur, for instance, due to faulty connections to the protective earthing

41、system, a too high resistance to earth (e.g. contamination by coating materials). 0.3.3 Hazards could occur, for instance, if hazardous malfunctions (e.g. shortcut of electronic safety circuits) occur due to interferences of the electrostatic high voltage equipment and the components of the control

42、and safety systems. 0.3.4 Hazardous electrostatic discharges could be generated, for instance, by non-earthed conductive components or by large insulating surfaces, especially if they are backed with conductive material. BS EN 50059:2018EN 50059:2018 (E) 7 0.3.5 Ventricular fibrillation is the prima

43、ry risk of electric shock. The undercut of the current/time limit and the fibrillation limit are proven by current and time measurement. In this standard, I(t) is used as a measure for falling below the current/time limit and the fibrillation limit. It is comparable to the amount of current It or th

44、e specific fibrillation energy 2 Itin accordance with IEC/TS 60479-1 and IEC TS 60479-2. A power limit as given in the standards EN 50176, EN 50177, EN 50223 and EN 50348 is not applicable in this standard due to the characteristics of the equipment and the resulting hazard of electric current. BS E

45、N 50059:2018EN 50059:2018 (E) 8 1 Scope 1.1 This European Standard specifies the requirements for hand-held or hand-operated electrostatic spraying equipment for non-ignitable liquid coating materials which do not generate an explosive atmosphere inside the spraying area; are used to process materia

46、ls with a conductivity of less than 2 000 S/cm; operate with direct current having a sinusoidal ripple of not more than 10 % of the rms value. This European Standard deals with all electrical hazards significant for the electrostatic spraying of non-ignitable liquid coating materials, which could al

47、so contain small quantities of added metal particles, if the work is carried out under conditions recommended by the manufacturer. This European Standard specifies the design-related and test requirements for electrostatic spraying equipment of type A-NL according to Table 1 of EN 50348:2010. 1.2 Wi

48、th regard to all other significant hazards relevant for applicators (e.g. ejection of fluids, mechanical strength, electrical - apart from electrostatic - hazards, noise, contact with or inhalation of dangerous substances, ergonomics) the requirements of EN 1953 apply. 1.3 This European Standard als

49、o gives details regarding quality assurance systems for electrostatic spraying equipment, see Annex D. 1.4 For electrostatic spraying equipment used in food and pharmaceutical industry, additional requirements may apply. 1.5 This document is not applicable to electrostatic hand-held spraying equipment for non-ignitable coating materials which are manufactured before the date of its publication as EN, cleaning of spraying areas, see instruction manual of the spraying booth, fi