BS EN 50050-3:2013:2014 Edition
$142.49
Electrostatic hand-held spraying equipment. Safety requirements – Hand-held spraying equipment for ignitable flock
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 28 |
1.1 This European Standard specifies the requirements for hand-held or hand-operated electrostatic spraying equipment for ignitable flock within a temperature range from 5 °C to 40 °C to be used in explosive atmospheres generated by their own spray cloud.
This European Standard deals with all electrical hazards significant for the electrostatic spraying of flock, which could also contain small quantities of added metal particles, if the work is carried out under conditions recommended by the manufacturer. In particular, this includes ignition hazards resulting from the generated explosive atmosphere. This European Standard specifies the design-related and test requirements for electrostatic spraying equipment of type A-F and type B-F according to Table 1 of EN 50223:2010.
1.2 Electrostatic applicators are considered to be equipment of group II, category 3D for use in potentially explosive areas of zone 22. All other parts of hand-held electrostatic spraying equipment are considered to be equipment of category 3D if they are installed or used in potentially explosive areas of zone 22.
NOTE 1 Solvent vapours which could be evaporated by workpieces coated with adhesives do not lead to a zone 2 in the flocking area.
1.3 In addition to the requirements above, the requirements of EN 1953 applies with regard to all other significant hazards relevant for applicators (e.g. health hazards, inadequate ergonomics).
1.4 This European Standard does not apply to
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zone classification of the areas in and around spray booths [see EN 50223],
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zone classification of other areas with potentially explosive atmosphere [see EN 60079-10-2],
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selection, erection and application of other electrical and non-electrical equipment in areas with explosion hazard [see EN 60079-14 and EN 50223],
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cleaning of spraying areas, see instruction manual of the spray booth,
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fire prevention and protection, for instance fire hazards due to other sources [see EN 50223],
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explosion protection systems [see EN 50223],
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dust hazards [see EN 12981].
NOTE 2 Noise is not considered to be a significant hazard for hand-held spraying equipment for ignitable flock.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | Foreword |
| 6 | 0 Introduction |
| 8 | 1 Scope |
| 9 | 2 Normative references |
| 10 | 3 Terms and definitions |
| 12 | 4 Requirements for hand-held spraying equipment for ignitable flock 4.1 General requirements |
| 13 | 4.2 Requirements for the accessories |
| 14 | 5 Tests 5.1 General 5.2 General tests 5.2.1 Test of earth connections 5.2.2 Resistance to earth test 5.2.3 Test of contact surface area 5.2.4 Test of OFF-position 5.3 Conditioning test 5.3.1 Cable pull test 5.3.2 Impact test |
| 15 | 5.3.3 Drop test 5.4 Tests for electrical safety 5.4.1 Measurement of the parameters high voltage, spraying current, short-circuit current 5.4.1.1 Measurement of maximum output high voltage 5.4.1.2 Measurement of maximum spraying current 5.4.1.3 Measurement of maximum short-circuit current 5.4.1.4 Measurement of the capacitance of the high-voltage electrode and the high-voltage cable 5.4.2 Voltage test 5.4.2.1 Test of parts at high voltage |
| 16 | 5.4.2.2 Test of the high voltage cable 5.4.3 Test of the degree of protection of applicators 5.5 Test of the maximum discharge energy and the maximum transferred charge 5.5.1 Test of the maximum discharge energy 5.5.2 Test of the maximum transferred charge 5.6 Tests of the accessories 5.6.1 Test of the degree of protection 5.6.2 Test of the flock supply system 6 Information for use 6.1 General 6.2 Instruction manual 6.2.1 General |
| 17 | 6.2.2 Cleaning, maintenance and repair 6.2.2.1 General 6.2.2.2 Characteristics of the cleaning liquid |
| 18 | 6.2.2.3 Earthing of the jigs for workpieces 6.2.3 Test intervals of repeated tests 6.2.4 Additional information 6.3 Marking of electrostatic hand-held spraying equipment and associated control devices 6.3.1 Marking of applicators |
| 19 | 6.3.2 Marking of the associated control devices |
| 21 | Annex A (normative) Test for ignition protection using a shunt and an oscilloscope |
| 22 | Annex B (informative) Quality assurance systems for electrostatic spraying equipment B.1 General B.2 Electrical assembly |
| 23 | B.3 Mechanical assembly B.4 Tests |
| 24 | Annex ZY (informative) Significant changes between this European Standard and EN 50050:2006 |
| 25 | Annex ZZ (informative) Coverage of Essential Requirements of EU Directives |
