BS EN 12779:2015
$198.66
Safety of woodworking machines. Chip and dust extraction systems with fixed installation. Safety requirements
Published By | Publication Date | Number of Pages |
BSI | 2015 | 62 |
This European Standard deals with the significant hazards, hazardous situations and events relevant for chip and dust extraction systems for fixed installation and for connection with machines for working on solid wood (including hard wood), wood-based materials and wood-like materials, when they are used as intended and under the conditions foreseen by the manufacturer, including reasonably foreseeable misuse.
This European Standard deals also with the technical requirements to minimize the hazards in connection with the temporary storage of wood dust, chips and shavings in a silo, bin or container including charging and discharge systems.
This European standard does not apply to:
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chip and dust extraction systems with filters installed indoors (covered by prEN 16770 );
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extraction equipment (e.g. extraction hoods, ducts) within a woodworking machine including the outlet to which the extraction system is connected;
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chip and dust extraction systems designed for K ST values above 200 bar ms− 1;
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mechanical conveying systems between filter and storage facility;
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extraction systems and conveying systems with underpressure below 0,3 bar or overpressure above 0,3 bar;
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storage devices for pressed wood products (e.g. pellets) and humid shavings.
Requirements for containers are not dealt with in this standard.
This European Standard is not applicable to machines which are manufactured before the date of its publication as EN.
PDF Catalog
PDF Pages | PDF Title |
---|---|
4 | Contents Page |
9 | 1 Scope 2 Normative references |
11 | 3 Terms, definitions, terminology, symbols and units 3.1 Terms and definitions |
14 | 3.2 Terminology 3.3 Symbols and units 4 List of significant hazards |
16 | 5 Safety requirements and/or measures 5.1 General 5.2 Control systems 5.2.1 Safety and reliability of control systems 5.2.2 Emergency stop |
17 | 5.2.3 Failure of the power supply 5.3 Protection against mechanical hazards 5.3.1 Stability of structural parts 5.3.2 Shearing, crushing, drawing-in |
18 | 5.3.3 Access to machinery 5.3.4 Pneumatics 5.4 Protection against fire and explosion 5.4.1 Hazards of fire and explosion 5.4.1.1 General |
19 | 5.4.1.2 Parameters for fire and explosion 5.4.1.3 Avoidance of chip and dust accumulation in ducting |
20 | 5.4.2 Fire protection and prevention 5.4.2.1 General 5.4.2.2 Measures against fire spreading 5.4.2.3 Measures against fire damage |
21 | 5.4.3 Explosion 5.4.3.1 Ignition sources |
22 | 5.4.3.2 Prevention of hazards due to ignition sources |
24 | 5.4.3.3 Constructive measures against impact of explosions |
27 | 5.5 Protection against noise 5.6 Protection against hazardous substances 5.6.1 Dust emissions |
28 | 5.6.2 Performance requirements |
29 | 5.6.3 Performance indication 5.6.4 Reintroduction of dust 5.6.4.1 Recirculation air 5.6.4.2 Monitoring devices |
30 | 5.7 Protection against electrical hazards 5.8 Additional requirements for silos 5.8.1 Requirements for design and construction |
31 | 5.8.2 Discharge system 5.8.3 Openings for silos |
33 | 6 Information for use 6.1 General 6.2 Marking |
34 | 6.3 Instruction handbook 6.3.1 General |
35 | 6.3.2 Information related to installation 6.3.3 Information related to operation |
36 | 6.3.4 Information related to maintenance 6.3.5 Information related to silos |
37 | 6.3.6 Fire fighting 6.3.7 Noise declaration |
39 | Annex A (informative)Examples of extraction systems A.1 Explanation to figures |
45 | A.2 Interface to woodworking machinery |
46 | Annex B (informative)Table with corresponding terms in English, French and German |
50 | Annex C (informative)Classification of places where explosive atmospheres may occur (according to Directive 1999/92/EC) |
52 | Annex D (informative) Noise reduction at the design stage D.1 Noise sources D.2 Measures to reduce noise |
53 | D.3 Impact from chips and dust |
54 | Annex E (normative)Silos with a cross section up to 45 m2 |
56 | Annex F (informative)Measurement of residual dust content |
57 | Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC |