EN 1870-8:2001
(Main)Safety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading
Safety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading
This European Standard sets out the requirements and/or the measures to remove the hazards and/or limit the risk on single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading, hereinafter referred to as "machines", designed to cut solid wood, chipboard, fibreboard and plywood.
This European Standard covers the hazards relevant to these machines as stated in clause 4.
For Computer Numerically Controlled (CNC) machines this European Standard does not cover hazards related to Electro-Magnetic Compatibility (EMC).
This European Standard applies to machines where the workpiece is stationary, the vertical and horizontal movements of the saw unit are power driven, and where the machine is provided with workpiece clamping the workpiece may or may not be clamped during cutting.
This European Standard does not apply to machines :
¾ where the workpiece is fed to the sawblade during cutting;
¾ designed specifically for cutting veneers;
¾ provided with a device situated behind the line of cut, which moves in a direction parallel to the line of cut, for automatically unloading the workpiece during the return of the saw unit to the rest position.
This European Standard is primarily directed at machines which are manufactured after the date of issue of this European Standard.
Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 8: Einblattbesäum- und Leistenkreissägemaschinen mit kraftbetätigtem Sägeaggregat und Handbeschickung und/oder Handentnahme
Diese Norm legt die Anforderungen und/oder Maßnahmen zur Beseitigung der Gefährdungen und/oder zur Begrenzung des Risikos fest an Besäum- und Leistenkreissägemaschinen mit kraftbetriebenem Sägeaggregat (im folgenden als "Maschinen" bezeichnet), die bestimmt sind zum Schneiden von Massivholz und/oder ähnlichen Werkstoffen wie Spanplatten, Faserplatten oder Sperrholz, sowie diesen Werkstoofen wenn sie kunstoff-beschichtet sind oder mit Kunststoffkanten versehen sind.
Sécurité des machines pour le travail du bois - Machines à scier circulaires - Partie 8: Déligneuses monolames à déplacement mécanisé du groupe de sciage et à chargement manuel et/ou déchargement manuel
La présente Norme européenne spécifie les prescriptions et/ou les mesures qui doivent être prises pour éliminer les phénomènes dangereux et/ou limiter les risques sur les déligneuses monolames à déplacement mécanisé du groupe de sciage à chargement et/ou déchargement manuel (ci-après désignées sous le terme "machines"), conçues pour la coupe de bois massif, de panneaux de particules, de fibres et de contreplaqué.
La présente Norme européenne couvre tous les phénomènes dangereux applicables à ces machines dont une liste est donnée à l'article 4.
Pour les machines à commande numérique, la présente norme européenne ne traite pas des phénomènes dangereux liés à la compatibilité électromagnétique (CEM).
La présente Norme européenne s'applique aux machines sur lesquelles la pièce à travailler est fixe et où les déplacements verticaux et horizontaux de la scie sont mécanisés. Lorsque ces machines sont munies d'un dispositif de bridage des pièces, la pièce peut ou non être bridée durant la coupe.
La présente Norme européenne ne s'applique pas aux machines
¾ sur lesquelles la pièce est poussée vers la lame durant la coupe ;
¾ conçues spécifiquement pour la coupe des feuilles de placage ;
¾ équipées d'un dispositif situé derrière la ligne de coupe, se déplaçant parallèlement à la ligne de coupe pour le déchargement automatique de pièces pendant le retour du groupe de sciage à sa position de repos.
La présente Norme européenne est applicable aux machines fabriquées après la date de publication de la présente Norme européenne.
Varnost lesnoobdelovalnih strojev - Krožne žage - 8. del: Enolistne obrezovalne krožne žage s pogonsko enoto in ročnim podajanjem in/ali odvzemom
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 8: Einblattbesäum- und Leistenkreissägemaschinen mit kraftbetätigtem Sägeaggregat und Handbeschickung und/oder HandentnahmeSécurité des machines pour le travail du bois - Machines a scier circulaires - Partie 8: Déligneuses monolames a déplacement mécanisé du groupe de sciage et a chargement manuel et/ou déchargement manuelSafety of woodworking machines - Circular sawing machines - Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading79.120.10Lesnoobdelovalni strojiWoodworking machines25.080.60Strojne žageSawing machinesICS:Ta slovenski standard je istoveten z:EN 1870-8:2001SIST EN 1870-8:2002en01-november-2002SIST EN 1870-8:2002SLOVENSKI
STANDARD
SIST EN 1870-8:2002
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1870-8October 2001ICS 79.120.10English versionSafety of woodworking machines - Circular sawing machines -Part 8: Single blade edging circular rip sawing machines withpower driven saw unit and manual loading and/or unloadingSécurité des machines pour le travail du bois - Machines àscier circulaires - Partie 8: Déligneuses monolames àdéplacement mécanisé du groupe de sciage et àchargement manuel et/ou déchargement manuelSicherheit von Holzbearbeitungsmaschinen -Kreissägemaschinen - Teil 8: Einblattbesäum- undLeistenkreissägemaschinen mit kraftbetätigtemSägeaggregat und Handbeschickung und/oderHandentnahmeThis European Standard was approved by CEN on 30 September 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1870-8:2001 ESIST EN 1870-8:2002
EN 1870-8:2001 (E)2ContentsForeword.40Introduction.51Scope.52Normative references.53Terms and definitions.73.1Terms.73.2Definitions.84List of hazards.115Safety requirements and/or measures.135.1Controls.135.1.1Safety and reliability of control systems.135.1.2Position of controls.145.1.3Starting.155.1.4Normal stopping.155.1.5Emergency stop.165.1.6Integrated feed.165.1.7Sawblade changing.165.1.8Speed changing.175.1.9Control duplication.175.1.10Failure of the power supply.175.1.11Movement of the fence.175.2Protection against mechanical hazards.185.2.1Stability.185.2.2Risk of break-up during operation.185.2.3Tool holder
and tool design.185.2.4Braking.195.2.5Devices to minimise the possibility or the effect of ejection.205.2.6Workpiece supports and guides.255.2.7Prevention of access to moving parts.265.2.8Workpiece clamping.285.2.9Safety appliances.295.3Protection against non-mechanical hazards.295.3.1Fire and explosion.295.3.2Noise.305.3.3Emission of chips, dust and gases.305.3.4Electricity.315.3.5Ergonomics and handling.315.3.6Lighting.315.3.7Pneumatic.315.3.8Hydraulic.315.3.9Heat.315.3.10Substances.315.3.11Vibration.315.3.12Radiation.315.3.13Laser.325.3.14Static electricity.325.3.15Errors of fitting.325.3.16Isolation.325.3.17Maintenance.32SIST EN 1870-8:2002
EN 1870-8:2001 (E)36Information for use.326.1Warning devices.326.2Marking.336.2.1Marking of riving knives.336.2.2Marking of machine.336.3Instruction handbook.33Annex A (normative)
Saw spindle dimensional tolerances.35Annex B (normative)
Riving knife mounting strength test.36Annex C (normative)
Lateral stability riving knife test.37Annex D (normative)
Sectional safety curtain material rigidity test.38Annex E (normative)
Operating conditions for noise emission measurement.39E.1General.39E.2Noise measurements.39E.3General data sheet.40Annex F (informative)
Safe working practice.43Annex ZA (informative)
Relationship of this document with EC Directives.45Bibliography.46SIST EN 1870-8:2002
EN 1870-8:2001 (E)4ForewordThis European Standard has been prepared by CEN /TC 142 "Woodworking machines - Safety", the secretariat ofwhich is held by BSI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by April 2002, and conflicting national standards shall be withdrawn at the latest byApril 2002.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EC Directive(s).For relationship with EC Directive(s), see informative annex ZA, which is an integral part of this document.Organisations contributing to the preparation of this European Standard include European Committee ofWoodworking Machinery Manufacturers Association "EUMABOIS".The annexes A, B, C, D and E are normative and annexes F and ZA are informative.This standard includes a Bibliography.The European Standards produced by CEN/TC 142 are particular to woodworking machines and complement therelevant A and B Standards on the subject of general safety (see introduction of EN 292-1 : 1991 for a descriptionof A, B and C standards).According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.SIST EN 1870-8:2002
EN 1870-8:2001 (E)50IntroductionThis European Standard has been prepared to be a harmonised standard to provide one means of conforming tothe essential safety requirements of the Machinery Directive, and associated EFTA regulations. This EuropeanStandard is a type “C” standard as defined in EN 292-1 : 1991.The extent to which hazards are covered is indicated in the scope of this European Standard.The requirements of this European Standard concern designers, manufacturers, suppliers and importers of singleblade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading.This European Standard also includes information to be provided by the manufacturer to the user.Common requirements for tooling are given in EN 847-1 : 1997.1 ScopeThis European Standard sets out the requirements and/or the measures to remove the hazards and/or limit the riskon single blade edging circular rip sawing machines with power driven saw unit and manual loading and/orunloading, hereinafter referred to as “machines”, designed to cut solid wood, chipboard, fibreboard and plywood.This European Standard covers the hazards relevant to these machines as stated in clause 4.For Computer Numerically Controlled (CNC) machines this European Standard does not cover hazards related toElectro-Magnetic Compatibility (EMC).This European Standard applies to machines where the workpiece is stationary, the vertical and horizontalmovements of the saw unit are power driven, and where the machine is provided with workpiece clamping theworkpiece may or may not be clamped during cutting.This European Standard does not apply to machines : where the workpiece is fed to the sawblade during cutting; designed specifically for cutting veneers; provided with a device situated behind the line of cut, which moves in a direction parallel to the line of cut,for automatically unloading the workpiece during the return of the saw unit to the rest position.This European Standard is primarily directed at machines which are manufactured after the date of issue of thisEuropean Standard.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 292 - 1 : 1991Safety of machinery - Basic concepts, general principles for design - Part 1:
Basicterminology and methodology.EN 292 – 2 : 1991EN 292-2/A1 : 1995Safety of machinery – Basic concepts, general principles for design - Part 2 :Technical principles and specifications.SIST EN 1870-8:2002
EN 1870-8:2001 (E)6EN 294 : 1992Safety of machinery - Safety distances to prevent danger zones being reached bythe upper limbs.EN 349 : 1993Safety of machinery –Minimum distances to avoid crushing of parts of the humanbody.EN 418 : 1992Safety of machinery – Emergency stop equipment – Functional aspects –Principles for design.EN 847-1 : 1997Tools for woodworking - Safety requirements - Part 1 : Milling tools, Circularsawblades.EN 954-1 : 1996Safety of machinery - Safety related parts of control systems - Part 1 : Generalprinciples for design.EN 982 : 1996Safety of machinery – Safety requirements for fluid power systems andcomponents – Hydraulics.EN 983 : 1996Safety of machinery - Safety requirements for fluid power systems andcomponents – Pneumatics.EN 1088 : 1995Safety of machinery – Interlocking devices associated with guards – Principles fordesign and selection.EN 60204-1 : 1992Safety of machinery - Electrical equipment of Machines - Part 1 : Generalrequirements (IEC 204-1 : 1992, modified).EN 60529 : 1991Degrees of protection provided by enclosures (IP Code) (IEC 60529 : 1989).EN 60825-1 : 1994Safety of lasers products – Equipment classification, requirements and user’sguide (IEC 60825-1 : 1993).EN 60947-4-1 : 1992Low voltage switchgear and control gear - Part 4 :
Electromechanical contactorsand motor starters – Section 1 : Electromechanical contactors and motor starters(IEC 60947-4-1 : 1990).EN 60947-5-1 : 1997Low voltage switchgear and control gear - Part 5 : Control circuit devices andswitching elements – Section 1 :
Electromechanical control circuit devices(IEC 60947-5-1 : 1990).EN ISO 3743-1 : 1995Acoustics – Determination of sound power levels of noise sources using soundpressure – Engineering methods for small, moveable sources in reverberant fields– Part 1 :
Comparison method for hard walled test rooms. (ISO 3743-1 : 1994).EN ISO 3743-2 : 1996Acoustics – Determination of sound power levels of noise sources – Engineeringmethods for small, moveable sources in reverberant fields - Part 2 : Method forspecial reverberation test rooms (ISO 3743-2 : 1994).EN ISO 3744 : 1995Acoustics – Determination of sound power levels of noise sources using soundpressure – Engineering method in an essentially free field over a reflecting plane(ISO 3744 : 1994).EN ISO 3746 : 1995Acoustics – Determination of sound power levels of noise sources using soundpressure – Survey method using an enveloping measurement surface over areflecting plane (ISO 3746 : 1995).EN ISO 4871 : 1996Acoustics – Determination and verification of noise emission values of machineryand equipment (ISO 4871 : 1996).EN ISO 9614-1 : 1995Acoustics - Determination of sound power levels of noise sources using soundintensity - Part 1 : Measurement at discrete points. (ISO 9614-1 : 1993).SIST EN 1870-8:2002
EN 1870-8:2001 (E)7EN ISO 11202 : 1995Acoustics - Noise emitted by machinery and equipment - Survey method for themeasurement of emission sound pressure levels at the workstation and at otherspecified positions - Survey method in situ
(ISO 11202 : 1995).EN ISO 11204 : 1995Acoustics - Noise emitted by machinery and equipment – Measurement ofemission sound pressure levels at the workstation and at other specified positions– Method requiring environmental corrections (ISO 11204 : 1995).EN ISO 11688-1 : 1998Acoustics - Recommended practice for the design of low noise machinery andequipment - Part 1 : Planning (ISO/TR 11688-1 : 1995).ISO 286-2 : 1988ISO system of limits and fits – Part 2 : Tables of standard tolerance grades andlimit deviations for holes and shafts.ISO 3745 : 1977Acoustics – Determination of sound power levels of noise sources - Precisionmethods for anechoic and semi-anechoic rooms.HD 21.1 S3 : 1997Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V– Part 1 : General requirements.HD 22.1 S3 : 1997Rubber insulated cables of rated voltages up to and including 450/750V - Part 1 :General requirements.3 Terms and definitionsFor the purpose of this European Standard the following terms and definitions apply.3.1 TermsThe main parts of manually loaded and/or unloaded single blade edging circular rip sawing machines with powerdriven saw unit and their terminology are illustrated in Figure 1.SIST EN 1870-8:2002
EN 1870-8:2001 (E)8Key1Sectional safety curtain2Sawblade in rest position3Riving knife4Foot-pedal5Workpiece end stop6Workpiece7Extraction outlet8Sectional safety curtain support9Front deterring/impeding device (on machines with raising andlowering of the saw unit at alternative positions)10Workpiece clamping device (pressure beam) (optional)Figure 1 — Terminology3.2 Definitions3.2.1single blade edging circular rip sawing machines with power driven saw unit and manual loading and/orunloadingmachine where the workpiece is supported in the horizontal plane during cutting. The saw unit is mounted belowthe workpiece and the cutting stroke is power driven. The sawblade is automatically raised through the slot in theworktable and is retracted from the workpiece for the return stroke. The machine is designed to cut against the feedin a single straight line only (see Figure 1).The machine may have any of the following features :a) adjustment of the height of the saw unit;b) the facility to tilt the sawblade for angled cutting;c) limitation of the cutting stroke length;d) workpiece clamping;e) the facility to vary the feed speed;f) powered movement of the fence;SIST EN 1870-8:2002
EN 1870-8:2001 (E)9g) the facility to allow raising and lowering of the saw unit at alternative positions;h) the facility for multiple cutting.3.2.2workpiece end stopadjustable end stop to hold the workpiece in the direction of the line of cut (see Figure 1)3.2.3saw unit rest positionposition to which the saw unit returns at the end of each cutting cycle (see Figure 1)3.2.4sectional safety curtaindevice to prevent inadvertent access to the sawblade during the cutting stroke (see Figure 1)3.2.5workpiece clamping deviceoptional device which extends over the full cutting length of the machine. Clamping can be achieved either by apressure beam between the sectional safety curtains (see Figure 1) or the sectional safety curtain support isdesigned to also be the clamping device.3.2.6multiple cuttingwhere the fence position is under numeric control to allow several cutting strokes for the same workpiece3.2.7machine actuatorpower mechanism used to effect motion of the machine3.2.8integrated feedfeed mechanism for the workpiece or tool which is integrated with the machine and where the workpiece ormachine element with incorporated tool are held and controlled mechanically during the machining operation3.2.9safety applianceadditional device which is not an integral part of the machine but which assists the operator in the safe feeding ofthe workpiece e.g. see Figure 2Figure 2a) — Example of push stickSIST EN 1870-8:2002
EN 1870-8:2001 (E)10Figure 2b) — Example of push blockFigure 2 — Examples of a push stick and push block3.2.10ejectionunexpected movement of the workpiece or parts of it or part of the machine from the machine during processing3.2.11run-up timetime elapsed from the actuation of the start control device until the spindle reaches the intended speed3.2.12run-down timetime elapsed from the actuation of the stop control device up to spindle standstill3.2.13manual loading of edging circular rip sawsoperation, where the operator positions the workpiece on the workpiece support at the cutting position i.e. there isno intermediate loading device to receive and transfer the workpiece from the operator to the cutting position3.2.14manual unloading of edging circular rip sawsoperation, where the operator removes the workpiece from the workpiece support at the cutting position, i.e. thereis no intermediate unloading device to transfer the workpiece from the cutting position to the operator3.2.15speed rangespeeds within which the saw spindle or integrated feed are designed to operate3.2.16confirmationstatements, sales literature, leaflets or other documents where the manufacturer (or supplier) declares either thecharacteristics or the compliance of the material or product to a relevant standardSIST EN 1870-8:2002
EN 1870-8:2001 (E)114 List of hazardsThis European Standard deals with all hazards listed and relevant to the machines as defined in the scope : for significant hazards by defining safety requirements and/or measures or by reference to relevant type Bstandards; for hazards which are not significant e.g. general, minor or secondary hazards by reference to relevant typeA standards, especially EN 292-1 : 1991 and EN 292-2 : 1991/A1 : 1995.These hazards are listed in Table 1 in accordance with annex A of EN 292-2 : 1991/A1 : 1995.SIST EN 1870-8:2002
EN 1870-8:2001 (E)12Table 1 — List of hazardsNumberHazardRelevant sub-clauses of thisEuropean Standard1Mechanical hazards caused for example by :-shape;-relative location;-mass and stability (potential energy of elements);-mass and velocity (kinetic energy of elements);-inadequacy of the mechanical strength.Accumulation of potential energy by :-elastic elements (springs); or-liquids or gases under pressure; or-vacuumof the machine parts or workpieces.1.1Crushing hazard5.1.8, 5.1.11, 5.2.7, 5.2.81.2Shearing hazard5.2.71.3Cutting or severing hazard5.2.4, 5.2.7, 5.2.8, 5.2.91.4Entanglement hazard5.2.71.5Drawing-in or trapping hazard5.2.7, 5.2.91.6Impact hazardNot relevant1.7Stabbing or puncture hazardNot relevant1.8Friction or abrasion hazardNot relevant1.9High pressure fluid ejection hazard5.3.7, 5.3.81.10Ejection of parts (of machinery and processedmaterials/workpieces)5.2.2, 5.2.3, 5.2.5, 5.2.61.11Loss of stability of machinery and machine parts5.2.11.12Slip, trip and fall hazards in relationship with machinery(because of their mechanical nature)Not relevant2Electrical hazards caused for example by :2.1Electrical contact (direct or indirect)5.3.4, 5.3.162.2Electrostatic phenomenaNot relevant2.3Thermal radiation or other phenomena such as ejection ofmolten particles and chemical effects from short circuits,overloads etc.Not relevant2.4External influences on electrical equipment5.1.1, 5.3.4, 5.3.123Thermal hazards resulting in :3.1Burns and scalds, by a possible contact of persons, byflames or explosion and also by the radiation of heatsourcesNot relevant3.2Health damaging effects by hot or cold work environmentNot relevant4Hazards generated by noise resulting in :4.1Hearing losses (deafness), or other physiologicaldisorders (e.g. loss of balance, loss of awareness)5.3.24.2Interference with speech communication, acoustic signalsetc.5.3.25Hazards generated by vibration (resulting in a varietyof neurological and vascular disorders)Not relevant6Hazards generated by radiation, especially by :6.1Electric arcsNot relevant6.2Lasers5.3.136.3Ionising radiation sourcesNot relevant6.4Machines making use of high frequency electrical fieldsNot relevant(continued)SIST EN 1870-8:2002
EN 1870-8:2001 (E)13Table 1 - List of hazards (concluded)NumberHazardRelevant sub-clauses of thisEuropean Standard7Hazards generated by materials and substancesprocessed, used or exhausted by machinery for example :7.1Hazards resulting from contact with or inhalation ofharmful fluids, gases, mists, fumes and dust5.3.37.2Fire or explosion hazard5.3.1, Annex F7.3Biological and microbiological (viral or bacterial hazards)Not relevant8Hazards generated by neglecting ergonomic principles inmachine design (mismatch of machinery with humancharacteristics and abilities) caused for example by :8.1Unhealthy postures or excessive efforts5.1.28.2Inadequate consideration of human hand-arm or foot-leganatomyNot relevant8.3Neglect of use of personal protection equipment6.38.4Inadequate area lightingAnnex F8.5Mental overload or underload, stress, etc.Not relevant8.6Human error6.39Hazard combinationsNot relevant10Hazards caused by failure of energy supply breakingdown of machinery parts and other functional disorders,for example :10.1Failure of energy supply (of energy and/or control circuits)5.1.10, 5.1.1110.2Unexpected ejection of machine parts or fluids5.2.2, 5.2.3, 5.3.810.3Failure, malfunction of control systems (unexpected startup, u
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