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1、BRITISH STANDARD BS EN 12779:2004 Safety of woodworking machines Chip and dust extraction systems with fixed installation Safety related performances and safety requirements The European Standard EN 12779:2004 has the status of a British Standard ICS 79.120.10 ? Licensed Copy: sheffieldun sheffieldu
2、n, na, Sat Oct 28 08:57:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12779:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 19 January 2005 BSI 19 January 2005 ISBN 0 580 45262 X National foreword This British Standard is the offic
3、ial English language version of EN 12779:2004. The UK participation in its preparation was entrusted to Technical Committee MTE/23, Woodworking machines Safety, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-r
4、eferences The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of Bri
5、tish Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; prese
6、nt to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an i
7、nside front cover, the EN title page, pages 2 to 63 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:26 GMT+00:00 2
8、006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12779 December 2004 ICS 79.120.10 English version Safety of woodworking machines - Chip and dust extraction systems with fixed installation - Safety related performances and safety requirements Machines pour le trav
9、ail du bois - Installations fixes dextraction de copeaux et de poussires - Performances relatives la scurit et prescriptions de scurit Sicherheit von Holzbearbeitungsmaschinen - Ortsfeste Absauganlagen fr Holzstaub und Spne - Sicherheitstechniche Anforderungen und Leistungen This European Standard w
10、as approved by CEN on 20 October 2004. CEN 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
11、national standards may be obtained on application to the Central Secretariat or to any CEN 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 CEN member into its own language an
12、d notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, N
13、etherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in a
14、ny form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12779:2004: E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12779:2004 (E) 2 Contents page Foreword4 Introduction.5 1 Scope 6 2 Normative references7 3 Te
15、rms, definitions, terminology and symbols9 3.1 Terms and definitions .9 3.2 Terminology .12 3.3 Symbols and units.12 4 List of significant hazards 13 5 Safety requirements and/or measures 14 5.1 General14 5.2 Controls 14 5.2.1 General14 5.2.2 Safety and reliability of control systems.15 5.2.3 Positi
16、on of and other requirements to controls .16 5.2.4 Mode selection.17 5.2.5 Speed changing.17 5.2.6 Failure of the power supply18 5.2.7 Failure of control circuits18 5.3 Protection against mechanical hazards18 5.3.1 Stability of supports18 5.3.2 Risk of break up during operation.18 5.3.3 Tool holder
17、and tool design18 5.3.4 Braking systems18 5.3.5 Ejection.18 5.3.6 Work-piece support and guides.19 5.3.7 Prevention of access to moving parts.19 5.3.8 Automation and mechanisation.19 5.3.9 Clamping devices 19 5.3.10 Multi-station machines19 5.3.11 Safety appliances.19 5.4 Protection against non-mech
18、anical hazards 19 5.4.1 Fire and explosion.19 5.4.2 Noise .33 5.4.3 Emission of chips, dust and gases36 5.5 Electricity42 5.6 Ergonomics and handling.42 5.6.1 Electrical controls42 5.6.2 Mechanical controls 42 5.7 Lighting.42 5.8 Pneumatics.42 5.9 Hydraulics.42 5.10 Vibration .43 5.11 Laser .43 5.12
19、 Static electricity .43 5.13 Errors of fitting.43 5.14 Isolation 43 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12779:2004 (E) 3 5.15 Maintenance.44 6 Information for use44 6.1 General .44 6.2 Warning 44 6.2.1 Warning devices44 6.2.2
20、Warning signs44 6.3 Marking.45 6.4 Instruction handbook45 6.4.1 General .45 6.4.2 Performance.46 6.4.3 Explosion protection and safety systems 46 6.4.4 Information for use47 6.4.5 Maintenance practice47 6.4.6 Noise declaration.48 Annex A (informative) Table with corresponding terms in English, Frenc
21、h and German49 Annex B (informative) Relationship between airflow, vacuum, air velocity and power consumption53 Annex C (informative) Verification of performance measurement.56 Annex D (normative) Noise reduction at the design stage58 Annex E (informative) Air velocity and extraction hood design60 A
22、nnex ZA (informative) Clauses of this document addressing essential requirements or other provisions of EU Directives62 Bibliography63 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12779:2004 (E) 4 Foreword This document (EN 12779:2004)
23、 has been prepared by Technical Committee CEN/TC 142 “Woodworking machines - Safety”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2005 and conflic
24、ting national standards shall be withdrawn at the latest by June 2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see i
25、nformative Annex ZA, which is an integral part of this document. The European Standards produced by CEN/TC 142 are particular to woodworking machines and compliment the relevant “A” and “B” standards on the subject of general safety (see introduction of EN ISO 12100-1:2003 for a description of A, B
26、and C standards). This standard for Chip and dust extraction systems with fixed installation will be followed by a separate standard for Semi-stationary chip and dust extraction machines. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countri
27、es are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerlan
28、d and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12779:2004 (E) 5 Introduction This standard has been prepared to be a harmonized standard to provide one means of conforming to the Essential Health and Safety Requirem
29、ents of the Machinery Directive and associated EFTA Regulations. This document is a type “C” standard as defined in EN ISO 12100-1:2003. The machinery concerned and the extent to which hazards, hazardous situations and events covered are indicated in the scope of this document. When provisions of th
30、is type C standard are different from those, which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of other standards, for machines that have been designed and built in accordance with the provisions of this type C standard. The require
31、ments of this document are directed to manufacturers and their authorised representatives of chip and dust extraction systems. It is also useful for designers. This document also includes information, which can be provided by the manufacturer to the user. Licensed Copy: sheffieldun sheffieldun, na,
32、Sat Oct 28 08:57:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12779:2004 (E) 6 1 Scope This document sets out the safety related performance requirements and specifies the methods for elimination of hazards or the measures that shall be taken to minimise hazards, which cannot be eliminated, on c
33、hip and dust extraction systems with fixed installation as defined in 3.1.1 and 3.1.2, for the purpose of this standard, hereinafter referred to as extraction system, connected to woodworking machines, designed to process solid wood, chipboard, fibreboard, plywood and also these materials where thes
34、e are covered with plastic laminate or edgings. The extraction and conveying system operates pneumatically by vacuum and/or pressure between 0,3 bar. This standard does not: a) apply to fixed installations with an air flow capacity below 6 000 m3h-1 installed indoors; b) apply to moveable units with
35、 an air flow capacity below 6 000 m3h-1; c) apply to extraction equipment (e.g. extraction hoods, ducts) within a woodworking machine i.e. up to and including the outlet to which the extraction system is coupled; d) apply to extraction systems connected to machines processing non-wood materials, suc
36、h as plastic, plastic laminates, metals, glass or stone; e) deal with the hazards from contact with or inhalation of dusts from wood coated with lacquer, plastic, aluminium and material with high additive contents or similar; f) deal with shop fresh air supply; g) apply to chip and dust extraction s
37、ystems designed for Kst values above 200 bar ms-1; h) apply to the silo discharge system; i) cover the hazards related to Electromagnetic Compatibility (EMC) as required by the EMC Directive 89/336/EEC dated 3-5-89. This document deals with the interaction with the silo discharge system if any. This
38、 document covers the hazards relevant to these machines as stated in Clause 4. document Directive 94/9/EC concerning equipment and protective systems intended for use in potentially explosive atmospheres can be applicable to the type of machine or equipment covered by this document. The present stan
39、dard is not intended to provide means of complying with the Essential Health and Safety Requirements (EHSR) of Directive 94/9/EC. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12779:2004 (E) 7 2 Normative references The following refere
40、nced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 294:1992, Safety of machinery - Safety distances to prevent danger
41、 zones being reached by the upper limbs EN 418:1992, Safety of machinery - Emergency stop equipment, functional aspects - Principles for design EN 953:1997, Safety of machinery - Guards - General requirements for the design and construction of fixed and movable guards EN 954-1:1996, Safety of machin
42、ery - Safety related parts of control systems - Part 1: General principles for design EN 982:1996, Safety of machinery - Safety requirements for fluid power systems and their components Hydraulics EN 983:1996, Safety of machinery - Safety requirements for fluid power systems and their components Pne
43、umatics EN 1127-1:1997, Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology EN 1366-1:1999, Fire resistance tests on service installations - Part 1: Ducts EN 1366-2:1999, Fire resistance tests for service installations - Part 2: Fire dampers EN 13284-
44、1:2001, Stationary source emissions - Determination of low range mass concentration of dust - Part 1: Manual gravimetric method EN 60204-1:1997, Safety of machinery - Electrical equipment of machines - Part 1: General requirements (IEC 60204-1:1997) EN 60529:1991, Degrees of protection provided by e
45、nclosures (IP Code) (IEC 60529:1989) EN 60947-4-1:2001, Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters (IEC 60947-4-1:2000). EN 60947-5-1:2004, Low-voltage switchgear and controlgear - Part 5-1: Control circuit devic
46、es and switching elements - Electromechanical control circuit devices (IEC 60947-5-1:2003). EN ISO 11202:1995, Acoustics - Noise emitted by machinery and equipment - Measurement of emission sound pressure levels at a work station and at other specified positions - Survey method in situ (ISO 11202:19
47、95) EN ISO 11688-1:1998, Acoustics - Recommended practice for the design of low-noise machinery and equipment - Part 1: Planning (ISO/TR 11688-1:1995) EN ISO 12100-1:2003, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology and methodology (ISO 12100-1:200
48、3) EN ISO 12100-2:2003, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications (ISO 12100-2:2003) EN ISO 14122-2:2001, Safety of machinery - Safety means of permanent access to machinery - Part 2: Working platforms and gangways (ISO 1412
49、2-2:2001) EN ISO 14122-3:2001, Safety of machinery - Permanent means of access to machinery - Part 3: Stairs, stepladders and guard rails (ISO 14122-3:2001) Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12779:2004 (E) 8 EN ISO 14122-4:2004, Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders (ISO 14122-4:2004) ISO 7000:2004, Graphical symbols for use on equipment - Index and synopsis ISO
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