prEN 50059:2011
(Main)Electrostatic hand-held spraying equipment - Safety requirements - Hand-held spraying equipment for non-ignitable coating materials
Electrostatic hand-held spraying equipment - Safety requirements - Hand-held spraying equipment for non-ignitable coating materials
This work item will specify the requirements for hand-held or hand-operated electrostatic spraying equipment for non-ignitable coating materials which do not generate an explosive atmosphere inside the spraying area. It will deal with all hazards significant for the electrostatic spraying of non-ignitable coating materials, which could also contain small quantities of added metal particles, if the work is carried out under conditions recommended by the manufacturer. It will not apply to: - cleaning of spraying areas, see instruction manual of the spraying booth; - fire prevention and protection [for instance fire hazards due to other sources.
Elektrostatische Handsprüheinrichtungen - Sicherheitsanforderungen - Handsprüheinrichtungen für nichtentzündbare Beschichtungsstoffe
Equipement manuel de projection électrostatique - Exigences de sécurité - Equipement manuel de projection de revêtement ininflammable
Ročna oprema za elektrostatično brizganje - Varnostne zahteve - Ročna oprema za brizganje nevnetljivih premazov
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2011
1DGRPHãþD
SIST EN 50059:2001
5RþQDRSUHPD]DHOHNWURVWDWLþQREUL]JDQMH9DUQRVWQH]DKWHYH5RþQDRSUHPD]D
EUL]JDQMHQHYQHWOMLYLKSUHPD]RY
Electrostatic hand-held spraying equipment - Safety requirements - Hand-held spraying
equipment for non-ignitable coating materials
Elektrostatische Handsprüheinrichtungen - Sicherheitsanforderungen -
Handsprüheinrichtungen für nichtentzündbare Beschichtungsstoffe
Equipement manuel de projection électrostatique - Exigences de sécurité - Equipement
manuel de projection de revêtement ininflammable
Ta slovenski standard je istoveten z: prEN 50059:2011
ICS:
87.100 Oprema za nanašanje Paint coating equipment
premazov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
prEN 50059
NORME EUROPÉENNE
May 2011
EUROPÄISCHE NORM
ICS 87.100 Will supersede EN 50059:1990
English version
Electrostatic hand-held spraying equipment -
Safety requirements -
Hand-held spraying equipment for non-ignitable coating materials
Equipement manuel de projection Elektrostatische Handsprüheinrichtungen -
électrostatique - Exigences de sécurité - Sicherheitsanforderungen -
Equipement manuel de projection Handsprüheinrichtungen für
de revêtement ininflammable nichtentzündbare Beschichtungsstoffe
This draft European Standard is submitted to CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2011-10-28.
It has been drawn up by CLC/TC 204.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CENELEC 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 Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to
change without notice and shall not be referred to as a European Standard.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Project: 22521 Ref. No. prEN 50059:2011 E
1 Foreword
2 This draft European Standard was prepared by the Technical Committee CENELEC TC 204, Safety of
3 electrostatic painting and finishing equipment. It is submitted to the CENELEC enquiry.
4 This document will supersede EN 50059:1990.
5 The significant changes with respect to EN 50059:1990 are as listed below:
6 – modification of the title of the standard;
7 – extension of introduction;
8 – extension of normative references;
9 – extension of terms and definitions;
10 – new arrangement and extension of the requirements for hand-held spraying equipment for non-ignitable
11 liquid coating materials;
12 – definition of requirements for safety functions;
13 – new arrangement and extension of tests for hand-held spraying equipment for non-ignitable liquid coating
14 materials;
15 – new arrangement and extension of the information for use;
16 – definition of requirements for repeated tests;
17 – introduction of the normative Annex A "Test of the transferred charge using a shunt and an oscilloscope“;
18 – introduction of the informative Annex B "Ignitability of water-based paints";
19 – introduction of the informative Annex ZZ "Coverage of Essential Requirements of EC directives.
21 This draft European Standard has been prepared under a mandate given to CENELEC by the European
22 Commission and the European Free Trade Association and covers essential requirements of EC Directive
23 MD (2006/42/EC). See Annex ZZ.
- 3 - prEN 50059:2011
24 Contents
25 Page
26 0 Introduction . 4
27 0.1 Process . 4
28 0.2 Fire hazards . 4
29 0.3 Electric hazards . 4
30 1 Scope . 5
31 2 Normative references . 5
32 3 Terms and definitions . 6
33 4 Requirements for hand-held spraying equipment for non-ignitable coating materials . 8
34 4.1 General requirements . 8
35 4.2 Requirements for the accessories . 9
36 5 Tests . 9
37 5.1 General . 9
38 5.2 General tests . 9
39 5.3 Conditioning test . 10
40 5.4 Tests for electrical safety . 10
41 5.5 Test of the transferred charge- - Test using a shunt and an oscilloscope. 11
42 5.6 Tests of the accessories . 11
43 6 Information for use . 12
44 6.1 General . 12
45 6.2 Instruction manual. 12
46 6.3 Marking of electrostatic hand-held spraying equipment and associated control devices . 14
47 Annex A (normative) Test of the transferred charge using a shunt and an oscilloscope . 15
48 Annex B (informative) Ignitability of water-based paints . 16
49 B.1 General . 16
50 B.2 Non-ignitable . 16
51 B.3 Hard to ignite . 16
52 B.4 Ignitable . 16
53 Annex ZZ (informative) Coverage of Essential Requirements of EC Directives. 17
54 Bibliography . 18
55 Table
56 Table 1 — Test intervals . 13
57 0 Introduction
58 0.1 Process
59 During the electrostatic coating process the non-flammable coating material is transported from a reservoir to
60 an applicator where it is atomised by mechanical forces and by the influence of an electric field. During this
61 atomising process the parts/droplets are charged by high voltage of some 10 kV and a spray cloud is
62 generated. The charged parts/droplets of the coating materials are attracted by and applied to the earthed
63 workpiece.
64 Parts/droplets of the coating material, which are not applied to the workpiece (overspray) are removed by a
65 suction device or by other means.
66 After the coating process the coated workpieces are introduced into a dryer or oven where a dry film of
67 coating material is generated.
68 0.2 Fire hazards
69 0.2.1 Fire hazards can be caused by deposits of coating materials inside the spray booth, exhaust air
70 ducts, the recovery system for coating materials, and filters. During operation, malfunctions or electrical
71 faults may cause ignition of these residues. This is especially true for spray booths where electrostatic
72 coating takes place. The fast propagation of the fire leads to hazards also in adjacent areas.
73 0.2.2 Particular attention should be paid to the prevention of electrostatic charges on different surfaces,
74 which are in the vicinity of the spray cloud. This could apply to workpieces during the coating process or the
75 reciprocating devices and the mounting parts of the spraying system, etc.
76 0.2.3 When spraying non-ignitable coating material, the formation of an explosive atmosphere is not likely
77 to occur. Electrostatic application equipment for ignitable coating materials are covered by EN 50050-1,
78 EN 50050-2, and EN 50050-3.
79 0.3 Electric hazards
80 0.3.1 Electric shock (by direct or indirect contact) can be generated, for instance, by contact with
81 – live parts, which are not insulated for operational reasons,
82 – conductive parts, which are not connected to dangerous voltage during normal operation, but only in case
83 of failure,
84 – insulated live parts with insufficient or damaged insulation due to external impact.
85 0.3.2 Inadequate earthing may occur, for instance, due to
86 – faulty connections to the protective earthing system,
87 – a too high resistance to earth (e. g. contamination by coating materials).
88 0.3.3 Hazards could occur, for instance, if hazardous malfunctions (e.g. shortcut of electronic safety
89 circuits) occur due to interferences of the electrostatic high voltage equipment and the components of the
90 control and safety systems.
91 0.3.4 Hazardous electrostatic discharges could be generated, for instance, by non-earthed conductive
92 components or by large insulating surfaces, especially if they are backed with conductive material.
- 5 - prEN 50059:2011
93 1 Scope
94 1.1 This European Standard specifies the requirements for hand-held or hand-operated electrostatic
95 spraying equipment for non-ignitable coating materials which do not generate an explosive atmosphere
96 inside the spraying area.
97 This European Standard deals with all hazards significant for the electrostatic spraying of non-ignitable
98 coating materials, which could also contain small quantities of added metal particles, if the work is carried out
99 under conditions recommended by the manufacturer.
101 This European Standard specifies the design-related and test requirements for electrostatic spraying
102 equipment of type A-NL according to Table 1 of EN 50348:2010.
104 1.2 In addition to the requirements above, the requirements of EN 1953 apply with regard to all other
105 significant hazards relevant for applicators (e.g. ejection of fluids, mechanical strength, electrical (apart from
106 the electrostatical), noise, explosion, contract with or inhalation of dangerous substances, ergonomics).
107 1.3 Additional requirements may be applicable to equipment designed for use in food and pharmaceutical
108 industry.
109 1.4 This European Standard does not apply to
110 cleaning of spraying areas, see instruction manual of the spraying booth,
111 fire prevention and protection [for instance fire hazards due to other sources; see EN 12215, EN 12981],
112 requirements for machinery for the supply and recirculation of coating material under pressure
113 [see EN 12621].
114 The requirements of EN 12621 apply for specific requirements for machinery for the supply and recirculation
115 of coating materials under pressure.
116 2 Normative references
117 The following referenced documents are indispensable for the application of this document. For dated
118 references, only the edition cited applies. For undated references, the latest edition of the referenced
119 document (including any amendments) applies.
EN 1149-5 Protective clothing – Electrostatic properties – Part 5: Performance
requirements
EN 1953 Atomising and spraying equipment for coating materials –
Safety requirements
EN 12215 Coating plants –
...
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