EN 1870-3:2001
(Main)Safety of woodworking machines - Circular sawing machines - Part 3: Down cutting cross-cut saws and dual purpose down cutting cross-cut saws/circular saw benches
Safety of woodworking machines - Circular sawing machines - Part 3: Down cutting cross-cut saws and dual purpose down cutting cross-cut saws/circular saw benches
This European Standard sets out the requirements and/or measures to remove the hazards and limit the risk on down cutting cross-cut saws and dual purpose down cutting cross -cut saws/circular saw benches as defined in 3.2, 3.3 and 3.4, herein after referred to as ¿machines", designed to cut solid wood, chipboard, fibreboard, plywood and also these materials where they are covered with plastic edging and/or plastic/light alloy laminates.
This European Standard does not apply to :
- machines for cross cutting logs;
- hand held woodworking machines or any adaptation permitting their use in a different mode i.e. bench mounting;
- machines set up on a bench or a table similar to a bench, which are intended to carry out work in a stationary position, capable of being lifted by one person by hand.
This European Standard covers the significant hazards relevant to this machine 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 is primarily directed at machines which are manufactured after the date of issue of this European Standard.
Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 3: Von oben schneidende Kappsägemaschinen und kombinierte Kapp- und Tischkreissägemaschinen
Diese Europäische Norm legt die Anforderungen und/oder Maßnahmen für die Beseitigung von Gefähr-dungen und zur Begrenzung der Risiken an den wie in 3.2, 3.3 und 3.4 definierten von oben schneidenden Kappsägemaschinen und kombinierten Kapp- und Tischkreissägemaschinen fest - im folgenden als "Maschinen" bezeichnet -, die konstruiert sind zum Schneiden von Massivholz, Spanplatten, Faserplatten oder Sperrholz, sowie diesen Werkstoffen, wenn sie mit Kunststoffkanten versehen und/oder kunststoff/aluminium-beschichtet sind.
Diese Europäische Norm gilt nicht für :
- Maschinen zum Kappen von Rundholz;
- handgeführte Holzbearbeitungsmaschinen einschließlich solcher Einrichtungen, die ihre Verwendung in einer anderen Weise z.B. in einer Stationäreinrichtung ermöglichen;
- Maschinen, die auf ein Gestell oder auf einen Tisch, der einem Gestell ähnlich ist, aufgesetzt sind und die vorgesehen sind, während des Betriebs stationär verwendet zu werden und die von Hand von einer Person angehoben werden können.
Diese Europäische Norm behandelt die von der Maschine ausgehenden signifikanten Gefährdungen, wie sie in 4 aufgelistet sind.
Diese Europäische Norm behandelt bei CNC-Maschinen nicht die Gefährdungen im Zusammenhang mit der elektromagnetischen Verträglichkeit (EMV).
Diese Europäische Norm ist in erster Linie auf Maschinen anzuwenden, die nach dem Datum der Herausgabe dieser Europäischen Norm hergestellt werden.
Sécurité des machines pour le travail du bois - Machines à scier circulaires - Partie 3: Tronçonneuses à coupe descendante et tronçonneuses mixtes à coupe descendante et à scie à table
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 tronçonneuses à coupe descendante et les tronçonneuses mixtes à coupe descendante et scie à table comme défini en 3.2, 3.3 et 3.4, ci-après désignées 'machines', conçues pour la coupe de bois massif, de panneaux de particules, et de fibres, de contre-plaqué, ainsi que ces matériaux lorsque leurs surfaces ou leurs chants sont recouverts de matière plastique et/ou de plastique/alliage léger stratifié.
La présente Norme européenne ne s'applique pas aux :
- machines conçues pour le tronçonnage de grumes;
- machines à bois portatives ou toute adaptation permettant leur utilisation de manière différente, c'est-à-dire fixées sur un établi;
- machines installée sur un établi ou une table similaire à un établi, destinées à exécuter des travaux dans une position fixe, pouvant être soulevées à la main par une personne.
La présente Norme européenne couvre les phénomènes dangereux signicatifs 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 est applicable avant tout aux machines fabriquées après la date de publication de la présente norme européenne.
Safety of woodworking machines - Circular sawing machines - Part 3: Down cutting cross-cut saws and dual purpose down cutting cross-cut saws/circular saw benches
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Safety of woodworking machines - Circular sawing machines - Part 3: Down cutting cross-cut saws and dual purpose down cutting cross-cut saws/circular saw benchesSicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 3: Von oben schneidende Kappsägemaschinen und kombinierte Kapp- und TischkreissägemaschinenSécurité des machines pour le travail du bois - Machines a scier circulaires - Partie 3: Tronçonneuses a coupe descendante et tronçonneuses mixtes a coupe descendante et a scie a tableSafety of woodworking machines - Circular sawing machines - Part 3: Down cutting cross-cut saws and dual purpose down cutting cross-cut saws/circular saw benches79.120.10Lesnoobdelovalni strojiWoodworking machines25.080.60Strojne žageSawing machinesICS:Ta slovenski standard je istoveten z:EN 1870-3:2001SIST EN 1870-3:2002en01-januar-2002SIST EN 1870-3:2002SLOVENSKI
STANDARD
SIST EN 1870-3:2002
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1870-3October 2001ICS 79.120.10English versionSafety of woodworking machines - Circular sawing machines -Part 3: Down cutting cross-cut saws and dual purpose downcutting cross-cut saws/circular saw benchesSécurité des machines pour le travail du bois - Machines àscier circulaires - Partie 3: Tronçonneuses à coupedescendante et tronçonneuses mixtes à coupedescendante et à scie à tableSicherheit von Holzbearbeitungsmaschinen -Kreissägemaschinen - Teil 3: Von oben schneidendeKappsägemaschinen und kombinierte Kapp- undTischkreissägemaschinenThis European Standard was approved by CEN on 29 June 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 1870-3:2001 ESIST EN 1870-3:2002
EN 1870-3:2001 (E)2ContentsForeword.30Introduction.41Scope.42Normative References.43Terms and definitions.64List of hazards.105Safety requirements and/or protective measures.125.1Controls.125.2Protection against mechanical hazards.165.3Protection against non-mechanical hazards.356Information for use.386.1Signals and warning devices.386.2Marking.386.3Instruction handbook.38Annex A (normative)
Dimensional tolerances of saw spindles.40Annex B (normative)
Riving knife mounting strength test.41Annex C (normative)
Riving knife lateral stability test.42Annex D (informative)
Safe working practice.43Annex ZA (informative)
Clauses of this European standard addressing essential requirements or otherprovisions of EU directives.45Bibliography.46SIST EN 1870-3:2002
EN 1870-3:2001 (E)3ForewordThis European Standard 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 orby endorsement, at the latest by April 2002, and conflicting national standards shall be withdrawn at the latest byApril 2002.This European Standard has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.Organisations contributing to the preparation of this European Standard include the European Committee ofWoodworking Machinery Manufacturers Association "EUMABOIS".Annexes A, B and C are normative, the annexes D, E and ZA are informative.The European Standards produced by CEN/TC142 are particular to woodworking machines and complement therelevant type A and type B Standards on the subject of general safety (see introduction of EN 292-1:1991 for adescription of type A, type B and type C standards).According to the CEN/CENELEC Internal Regulations, the national standards organisations 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 1870-3:2002
EN 1870-3:2001 (E)40IntroductionThis 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 downcutting cross-cut saws and dual purpose down cutting cross -cut saws/circular saw benches.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.Electrically driven machines excluded by the scope of this European Standard are covered by the requirements ofEN 61029-1:1996, prEN 61029-2-9 and prEN 61029-2-11.1 ScopeThis European Standard sets out the requirements and/or measures to remove the hazards and limit the risk ondown cutting cross-cut saws and dual purpose down cutting cross -cut saws/circular saw benches as defined in3.2, 3.3 and 3.4, herein after referred to as „machines“, designed to cut solid wood, chipboard, fibreboard, plywoodand also these materials where they are covered with plastic edging and/or plastic/light alloy laminates.This European Standard does not apply to : machines for cross cutting logs; hand held woodworking machines or any adaptation permitting their use in a different mode i.e. benchmounting; machines set up on a bench or a table similar to a bench, which are intended to carry out work in astationary position, capable of being lifted by one person by hand.This European Standard covers the significant hazards relevant to this machine 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 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:Basic terminology, methodologyEN 292-2:1991Safety of machinery - Basic concepts, general principles for design - Part 2:Technical principles and specificationsSIST EN 1870-3:2002
EN 1870-3:2001 (E)5EN 292-2/A1:1995Safety of machinery - Basic concepts, general principles for design - Part 2:Technical principles and specificationsEN 294:1992Safety of machinery - Safety distances to prevent danger zones beingreached by the upper limbsEN 418:1992Safety of machinery - Emergency stop equipment, functional aspects -Principles for designEN 574:1996Safety of machinery - Two hand control devices - Functional aspects,principles for designEN 847-1:1997Tools for woodworking - Safety requirements - Part 1: Milling tools andcircular saw bladesEN 954-1:1996Safety of machinery - Safety-related parts of control systems - Part 1:General principles for designEN 983:1996Safety of machinery - Safety requirements for fluid power systems and theircomponents - PneumaticsEN 1070:1998Safety of machinery - TerminologyEN 1088:1995Safety of machinery - Interlocking devices associated with guards - Principlesfor design and selectionEN 1760-1:1997Safety of machinery - Pressure sensitive protective devices - Part 1: Generalprinciples for the design and testing of pressure sensitive mats and pressuresensitive floorsEN 1760-2:2000Safety of machinery - Pressure sensitive protective devices - Part 2: Generalprinciples for the design and testing of pressure sensitive edges and pressuresensitive barsEN 1870-1:1999Safety of woodworking machines - Circular sawing machines - Part 1:Circular saw benches (with and without sliding table) and dimension sawsEN 60204-1:1992Safety of machinery - Electrical equipment of machines - Part 1: Generalrequirements (IEC 60204-1:1992, modified)EN 60529:1991Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)EN 60825-1:1994Safety of laser products - Part 1: Equipment classification, requirements anduser's guide (IEC 60825-1:1993)EN 60947-4-1:1992Low voltage switchgear and controlgear - Part 4:
Electromechanicalcontactors and motor starters - Section 1: Electromechanical contactors andmotor starters (IEC 60947-4-1:1990)EN 60947-5-1:1997Low-voltage switchgear and controlgear - Part
5-1: Control circuit devicesand switching elements - Electromechanical control circuit devices (IEC60947-5-1:1997)EN 61029-1:1996Safety of transportable motor operated electric tools - Part 1: Generalrequirements (IEC 1029-1:1990, modified)prEN 61029-2-9Safety of transportable motor operated electric tools - Part 2-9: Particularrequirements for mitre saws (IEC 1029-2-9:1995, modified)prEN 61029-2-11Safety of transportable motor operated electric tools - Part 2-11: Particularrequirements for combined mitre/bench sawsSIST EN 1870-3:2002
EN 1870-3:2001 (E)6prEN 61496-2Safety of machinery - Electro-sensitive protective equipment - Part 2:Particular requirements for equipment using active opto-electronic protectivedevices (IEC 60496-2:1997)EN ISO 3743-1:1995Acoustics – Determination of sound power levels of noise sources usingsound pressure – Engineering methods for small, moveable sources inreverberant 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 usingsound pressure – Engineering methods for small, moveable sources inreverberant fields - Part 2: Method for special reverberation test rooms (ISO3743-2 : 1994)EN ISO 3744:1995Acoustics – Determination of sound power levels of noise sources usingsound pressure - Engineering method in an essentially free field over areflecting plane (ISO 3744 : 1994)EN ISO 3746:1995Acoustics - Determination of sound power levels of noise sources usingsound pressure - Survey method using an enveloping measurement surfaceover a reflecting plane (ISO 3746 : 1995)EN ISO 4871:1996Acoustics – Declaration and verification of noise emission values ofmachinery and equipment (ISO 4871 : 1996)EN ISO 9614-1:1995Acoustics - Determination of sound power levels of noise sources usingsound intensity - Part 1: Measurement at discrete points (ISO 9614-1 : 1993)EN ISO 11202:1995Acoustics - Noise emitted by machinery and equipment - Measurement ofemission sound pressure levels at a workstation and at other specifiedpositions - Survey method in situ (ISO 11202 : 1995)EN ISO 11204:1995Acoustics - Noise emitted by machinery and equipment – Measurement ofemission sound pressure levels at a workstation and at other specifiedpositions - Method requiring environmental corrections (ISO 11204 : 1995)EN ISO 11688-1:1998Acoustics - Recommended practice for the design of low noise machineryand equipment - Part 1: Planning (ISO/TR 11688-1 : 1995)ISO 3745:1977Acoustics - Determination of sound power levels of noise sources - Precisionmethods for anechoic and semi-anechoic roomsISO 7960:1995Airborne noise emitted by machine tools - Operating conditions forwoodworking machinesHD 21.1 S3:1997Polyvinyl chloride insulated cables of rated voltages up to and including450/750V - Part 1: General requirementsHD 22.1 S3:1997Rubber insulated cables of rated voltages up to and including 450/750V -Part 1: General requirementsHD 22.4 S3:1995Rubber insulated cables of rated voltages up to and including 450/750V -Part 4: Cords and flexible cables (IEC 60245-4:1994, modified)3 Terms and definitionsIn addition to the terms and definitions of EN 1070:1998 for the purposes of this European Standard, the followingdefinitions apply:3.1cross-cuttingoperation of cutting across the grain of a wooden workpieceSIST EN 1870-3:2002
EN 1870-3:2001 (E)73.2down cutting cross-cut sawmachine where the sawblade spindle is situated above the workpiece when the sawblade is in its rest position. Thesawblade moves down through the workpiece during the cut. (see Figure 1)Figure 1 — Example of a down cutting cross-cut saw3.3down cutting and horizontal cutting cross-cut sawmachine where the saw unit is fed by hand and the workpiece is manually loaded and/or unloaded. The machinecan be used in two modes :a) as a down cutting cross cut saw (see 3.2);b) as a down cutting cross cut saw with an additional horizontal cutting stroke where the saw unit is pulledforward through wide work (see Figure 2)Key1Down cutting stroke2Horizontal cutting stroke3Operators sideFigure 2 — Diagrammatic illustration of a down cutting and horizontal cutting cross-cut saw(guarding not shown)SIST EN 1870-3:2002
EN 1870-3:2001 (E)83.4dual purpose down cutting cross-cut saw/circular saw benchmachine which may be used in the following modes (see Figure 3):a) as a down cutting cross cut saw;b) as a circular saw bench (see 3.1.1 of EN 1870-1:1999)Key1Table for use when saw unit is lowered intothe circular saw bench modeFigure 3 — Example of a dual purpose down cutting cross-cut saw/circular saw bench3.5manual cross-cut sawmachine where the saw unit is fed by hand and the workpiece is manually positioned for cutting to length.NOTEThis type of machine is not covered by annex IV of the Machinery Directive3.6semi-automatic cross-cut sawmachine where the saw unit has integrated feed which is initiated manually and the workpiece is positionedmanually or by means of a positioning mechanism for cutting to length.NOTEThis type of machine is covered by annex IV of the Machinery Directive3.7automatic cross-cut sawmachine where the saw unit has integrated feed, the workpiece is manually loaded and/or unloaded, automaticallypositioned for cutting to pre-selected lengths and where the integrated feed of the saw unit is initiatedautomatically.NOTEThis type of machine is not covered by annex IV of the Machinery Directive3.8transportable machinemachine which is located on the floor, stationary during use and equipped with a device, normally wheels, whichallow it to be moved between locations3.9machine actuatorpower mechanism used to effect motion of the machineSIST EN 1870-3:2002
EN 1870-3:2001 (E)93.10hand feedmanual holding and/or guiding of the workpiece or of a machine element incorporating a tool (hand feed includesthe use of a hand operated carriage on which the workpiece is placed manually or clamped and the use of a de-mountable power feed unit)NOTEThe words in brackets are not applicable to this machine.3.11integrated 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 operation3.12cutting area of the sawbladearea where the sawblade can be involved in the cutting process3.13non-cutting area of the sawbladearea of the sawblade where the sawblade is not involved in the cutting process3.14ejectionunexpected movement of the workpiece or parts of it or part of the machine from the machine during processing3.15kickbacka particular form of ejection and is describing the unexpected movement of the workpiece or parts of it or parts ofthe machine opposite to the direction of feed during processing3.16anti kick-back devicedevice which either reduces the possibility of kickback or arrests the motion during kickback of the workpiece orparts of it or parts of the machine3.17safety applianceadditional device which is not an integral part of the machine but which assists the operator in the safe feeding ofthe workpiece, e.g. as illustrated in Figure 4Figure 4b) : Example of push blockSIST EN 1870-3:2002
EN 1870-3:2001 (E)10Figure 4a) : Example of push stickFigure 4 — Example of push stick and push block (for dual purpose down cutting cross-cut saws/circularsaw benches in the saw bench mode)3.18run-down timetime elapsed from the actuation of the stop control device up to spindle standstill3.19manual loading of power fed machinesoperation, where the workpiece is presented by the operator directly to the machine integrated feed, e.g. rotatingfeed rollers, travelling table or reciprocating carriage; i.e. for which there is no intermediate loading device toreceive and transfer the workpiece from the operator to the integrated feed3.20manual unloading of power fed machinesoperation, where the workpiece is removed by the operator directly from the machine out-feed; i.e. for which thereis no intermediate unloading device to receive and transfer the workpiece from the machine out-feed to theoperator3.21confirmationstatements, 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 standard4 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 or B 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 1870-3:2002
EN 1870-3:2001 (E)11Table 1 — List of significant hazardsNumberSignificant hazardRelevant clauses of thisstandard1Mechanical 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
. liquid or gases under pressure, or
. vacuumof the machine parts or workpieces1.1Crushing hazard5.2.7, 5.2.81.2Shearing hazard5.2.7, 5.2.81.3Cutting or severing hazard5.2.2, 5.2.3, 5.2.4, 5.2.71.4Entanglement hazard5.2.71.5Drawing-in or trapping hazard5.2.71.6Impact hazardNot present1.7Stabbing or puncture hazardNot present1.8Friction or abrasion hazardNot present1.9High pressure fluid injection hazard5.3.71.10Ejection of parts (of machinery and processedmaterial/workpieces)5.2.2, 5.2.3, 5.2.5, 5.2.6,5.2.81.11Loss of stability (of machinery and machine parts)5.2.11.12Slip, trip and fall hazards in relationship with machinery(because of their mechanical nature)Not present2Electrical hazards, caused for example by :2.1Electrical contact (direct or indirect)5.3.4, 5.3.162.2Electrostatic phenomenaNot present2.3Thermal radiation or other phenomena such as ejection ofmolten particles, and chemical effects from short circuits,overloads etc.Not present2.4External 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 explosions and also by the radiation of heatsourcesNot present3.2Health damaging effects by hot or cold work environmentNot present4Hazards generated by noise resulting in :4.1Hearing loss (deafness) other physiological disorders(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 variety ofneurological and vascular disorders)Not present6Hazards generated by radiation, especially by :6.1Electric arcsNot present6.2Lasers5.3.136.3Ionising radiation sourcesNot present6.4Machines making use of high frequency electrical fieldsNot present(continued)SIST EN 1870-3:2002
EN 1870-3:2001 (E)12Table 1 — List of significant hazards (concluded)NumberSignificant hazardRelevant clauses of thisstandard7Hazards 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, 5.3.37.3Biological and microbiological (viral or bacterial hazards)Not present8Hazards generated by neglecting ergonomic principles inmachine design (mismatch of machinery with humancharacteristics and abilities) caused for example by :8.1Unhealthy posture or excessive efforts5.1.28.2Inadequate consideration of human hand-arm or foot-leganatomy5.1.28.3Neglected use of personal protective equipment6.3, Annex D8.4Inadequate area lightingAnnex D8.5Mental overload or underload, stress etc.Not present8.6Human error6.39Hazard combinations5.1.710Hazards 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)5.1.810.2Unexpected ejection of machine parts or fluids5.2.510.3Failure, malfunction of control system (unexpected startup, unexpected overrun)5.1.110.4Errors of fitting5.2.310.5Overturn, unexpected loss of machine stability5.2.111Hazards caused by (temporary) missing and/or incorrectlypositioned safety related measures/means, for example :11.1All kinds of guard5.2.711.2All kinds of safety related protection devices5.1.1, 5.2.711.3Starting and stopping devices5.1.2, 5.1.3, 5.1.4, 5.1.511.4Safety signs and signals6.211.5All kinds of information and warning devices6.2, 6.311.6Energy supply disconnecting devices5.3.1611.7Emergency devices5.1.511.8Feeding/removal means of workpieces5.2.611.9Essential equipment and accessories for safe adjustingand/or maintaining5.3.1711.10Equipment evacuating gases, etc.5.3.35 Safety requirements and/or protective measuresFor guidance in connection with risk reduction by design, see clause 3 of EN 292-2:1991 and in addition :5.1 Controls5.1.1 Safety and reliability of control systemsFor the purpose of this European Standard a safety related control system is one from and including the initialmanual control or position detector to the point of input to the final actuator or element e.g. motor. The safetyrelated parts (see EN 954-1:1996) of the control systems of this machine are those for : starting (see 5.1.3); normal stopping (see 5.1.4); emergency stopping (see 5.1.5);SIST EN 1870-3:2002
EN 1870-3:2001 (E)13 interlocking (see 5.1.3, 5.2.7.4, 5.2.7.4.2, 5.2.7.6); interlocking with guard locking (see 5.2.7.3, 5.2.7.4, 5.2.7.6); clamping (see 5.2.8); braking system (see 5.2.4); two hand control (see 5.2.7.2); the interlocking of the positioning of the workpiece or of the integrated feed of the saw unit (see 5.1.3); pressure sensitive mats (see 5.2.7.4); active opto-electronic protective devices (see 5.2.7.4); mechanically actuated trip device (trip bar) (see 5.2.7.4).These control systems shall, as a minimum, be designed and constructed using “well tried components andprinciples”.For the purposes of this European Standard "well tried components and principles" means :a) electrical components if they comply with relevant standards including the following as :i)clause 3 of EN 60947-5-1:1997 for control switches with positive opening operation used asmechanically actuated position detectors for interlocking guards and for relays used in auxiliary circuits;ii)EN 60947-4-1:1992 for electromechanical contactors and motor-starters used in main circuits;iii)HD 22.1 S3:1997 for rubber-insulated cables;iv)HD 21.1 S3:1997 for polyvinyl chloride cable if this cable is additionally protected against mechanicaldamage by positioning (e.g. inside frames);b) electrical principles if they comply with the first four measures listed in 9.4.2.1 of EN 60204-1:1992. Thecircuits shall be either “hardwired”, or if electronic components are used in safety related control systems “welltried” is fulfilled if they are in accordance with9.4.2.2 of EN 60204-1:1992 (i.e. redundancy with cross-monitoring) or 9.4.2.3 (i.e. diversity);c) mechanical components if, for example they operate in the positive mode in accordance with thedescription given in 3.5 of EN 292-2:1991/A1:1995;d) mechanically actuated position detectors for guards if they are actuated in the positive mode and theirarrangement/fastening and cam design/mounting comply with the requirements of
5.2 and 5.3 of EN1088:1995;e) interlocking devices with guard locking if they have, as a minimum, unconditional unlocking in accordancewith the requirements of Table 1 and Annex N of EN 1088:1995;f) pneumatic components and systems if they comply with the requirements of EN 983:1996;g) two-hand controls if they are as minimum type IIIB in accordance with the requirements of EN 574:1996;h) pressure sensitive mats if they are as minimum in accordance with type 2 of EN 1760-1:1997 and if theyare tested together with their associated control circuits at least at each starting of the machine;i) active opto-electronic protective devices if they comply as minimum with type 2 of prEN 61496-2 and if theyare tested together with
the associated control circuits at least at each starting of the machine;j) trip bars if they are as minimum in accordance with type 2 of EN 1760-2:2000 and if they are testedtogether with their associated control circuits at least at each starting of the machine.Time delay devices used in hardwired safety related control circuits may be of category B in accordance with EN954-1:1996 if the time delay device is designed for at least one million actuations.Verification : By checking relevant drawings and/or circuit diagrams, inspection of the machine; for electricalcomponents by requiring a confirmation from the component manufacturer that the component complies with therelevant standards.SIST EN 1870-3:2002
EN 1870-3:2001 (E)145.1.2 Position of controls5.1.2.1GeneralAccording to the size of the machine emergency stops required by 5.1.5 shall be positioned :a) within 1,0 m of the loading position;b) within 1,0 m of the unloading position;c) at the main control panel;d) within 500 mm of the two hand control (where provided);e) within 3,0 m of the saw unit.NOTEA single emergency s
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