EN 1870-15:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LQDOLRGY]HPRPSicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 15: Mehrfachablängkreissägemaschinen mit mechanischem Vorschub für das Werkstück und Handbeschickung und/oder HandentnahmeSécurité des machines pour le travail du bois - Machines a scier circulaires - Partie 15: Tronçonnueses miltilames a avance mécanisée de la piece et a chargement et/ou déchargement manuelsSafety of woodworking machines - Circular sawing machines - Part 15: Multiblade cross-cut sawing machines with integrated feed of the workpiece and manual loading and/or unloading79.120.10Lesnoobdelovalni strojiWoodworking machines25.080.60Strojne žageSawing machinesICS:Ta slovenski standard je istoveten z:EN 1870-15:2004SIST EN 1870-15:2005en01-april-2005SIST EN 1870-15:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1870-15December 2004ICS 79.120.10English versionSafety of woodworking machines - Circular sawing machines -Part 15: Multiblade cross-cut sawing machines with integratedfeed of the workpiece and manual loading and/or unloadingSécurité des machines pour le travail du bois - Machines àscier circulaires - Partie 15: Machines à scier multilamespour tronçonnage à avance mécanisée de la pièce et àchargement et/ou déchargement manuelsSicherheit von Holzbearbeitungsmaschinen -Kreissägemaschinen - Teil 15:Mehrfachablängkreissägemaschinen mit mechanischemVorschub für das Werkstück und Handbeschickungund/oder HandentnahmeThis European Standard was 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 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 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1870-15:2004: ESIST EN 1870-15:2005

Saw spindle dimensional tolerances.34 Annex B (normative)
Stability test for the deterring/impeding device required in 5.3.7.1.2.35 Annex C (normative)
Operating conditions for noise emission measurement.36 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 98/37.38 Bibliography.41
Basic concepts, general principles for design - Part 1: Basic terminology and methodology (ISO 12100-1:2003). EN ISO 12100-2:2003, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles (ISO 12100-2:2003). ISO 7960:1995, Airborne noise emitted by machine tools – Operating conditions for woodworking machines. SIST EN 1870-15:2005

Figure 1 — Example of multi-blade cross-cut sawing machine with integrated feed of the work-piece and manual loading and/or unloading (guards are not represented for clarity) 3.2 top pressure device device located above each saw-blade which holds the work-piece against the chains e.g. by belts or rollers 3.3 saw unit part(s) of the machine incorporating the saw spindle with its drive motor, the top pressure device and a chain/chains for the feed of the work-piece. The saw spindle may be fixed or retractable manually or under power to a non-cutting position 3.4 integrated feed of multi-blade cross-cut sawing machines feed mechanism for the work-piece or tool which is integrated with the machine and where the work-piece or machine element with incorporated tool is held and controlled mechanically during the machining operation 3.5 stationary machine machine designed to be located on or fixed to the floor or other parts of the structure of the premises and to be stationary during use SIST EN 1870-15:2005

equipped with devices, such as wheels, which allows it to be moved between locations 3.7 cutting area of the saw-blade area of the saw-blade which is covered by the work-piece during the cutting process (see Figure 2) 3.8 non-cutting area of the saw-blade area of the saw-blade which is not covered by the work-piece during the cutting process (see Figure 2)
Key 1 Cutting area of the saw-blade 2 Non-cutting area of the saw-blade 3 Direction of saw-blade rotation 4 Feed direction 5 Work-piece Figure 2 — Cutting/non-cutting area of the saw-blade 3.9 non-cutting position of the saw spindle position of a saw unit with its saw spindle outside the maximum cutting width for which the machine is designed or where the saw-spindle is retracted to a position such that the saw-blade with the maximum saw-blade diameter for which the machine is designed does not protrude over the work-piece support 3.10 climb cutting event where the rotation of the saw-blade and the movement of the work-piece are in the same direction (see Figure 3)
Key 1 Direction of saw-blade rotation 2 Work-piece feed Figure 3 — Climb cutting SIST EN 1870-15:2005

No
Hazards
EN ISO 12100 Relevant clause of this document
Part 1: 2003 Part 2: 2003
Hazards, hazardous situations and hazardous events 1 Mechanical hazards due to:
- machine parts or work-pieces, e.g.: 4.2, 4.10 4.2.1, 4.2.2, 5
a) shape;
5.3.2, 5.3.7
b) relative location;
5.3.2, 5.3.3, 5.3.7, Annex A
c) mass and stability (potential energy of elements which may move under the effect of gravity);
5.3.1, Annex B
d) mass and velocity (kinetic energy of elements in controlled or uncontrolled motion);
5.3.3, 5.3.5, 5.3.7, 6.2
e) inadequacy of mechanical strength.
5.3.2, 5.3.3, Annex B
- accumulation of energy inside the machinery e.g.: 4.2 4.10, 5.5.4
f) elastic elements (springs);
g) liquids and gases under pressure;
5.4.7, 5.4.8 1.1 Crushing hazard 5.3.3, 5.3.7 1.2 Shearing hazard 5.3.3, 5.3.7 1.3 Cutting or severing hazard 5.3.3, 5.3.4, 5.3.7 1.4 Entanglement hazard 5.3.7 1.5 Drawing-in or trapping hazard 5.3.7 1.6 Impact hazard 5.3.5, 6.2 a) 1.8 Friction or abrasion hazard 4.2.1
5.3.4 2 Electrical hazards due to: 2.1 Contact of persons with live parts (direct contact) 4.3 4.9, 5.5.4 5.4.4, 5.4.13 2.2 Contact of persons with parts which have become live under faulty conditions (indirect contact) 4.3 4.9 5.4.4, 5.4.13 2.3 Approach to live parts under high voltage 4.3 4.9, 5.5.4 5.4.4, 6.4 2.4 Electrostatic phenomena 4.3 4.9 5.4.11 4 Hazards generated by noise, resulting in: 4.1 Hearing loss (deafness), other physiological disorders (e.g. loss of balance, loss of awareness) 4.5 4.2.2, 5 5.4.2 4.2 Interference with speech communication, acoustic signals, etc.
5.4.2 (to be continued) SIST EN 1870-15:2005

No
Hazards
EN ISO 12100 Relevant clause of this document
Part 1: 2003 Part 2: 2003
6 Hazards generated by radiation 6.5 Lasers 4.7
5.4.10 7 Hazards generated by materials and substances (and their constituent elements) processed or used by the machinery 7.1 Hazards from contact with or inhalation of harmful fluids, gases, mists, fumes, and dusts 4.8 4.3 b), 4.4 5.4.3 7.2 Fire hazard 4.8 4.4 5.4.1, 5.4.3 8 Hazards generated by neglecting ergonomic principles in machinery design as, e.g. hazards from: 8.1 Unhealthy postures or excessive effort 4.9 4.7, 4.8.2, 4.11.12, 5.5.5, 5.5.6 5.2.2, 5.4.5 8.2 Inadequate consideration of hand-arm or foot-leg anatomy 4.9 4.8.3 5.2.2, 5.4.5 8.4 Inadequate local lighting
4.8.6 5.4.6, 6.4 8.6 Human error, human behaviour 4.9 4.8, 4.11.8, 4.11.10, 5.5.2, 6 5.2.4, 5.2.7, 5.3.3, 6.4 8.7 Inadequate design, location or identification of manual controls
4.8.7, 4.11.8 5.2.2, 5.2.5, 5.3.7.3, 5.4.5 8.8 Inadequate design or location of visual display units
4.8.8, 6.2 5.4.5 9 Combination of hazards 4.11
5.2.7, 5.4.3,
10 Unexpected start-up, unexpected overrun/over speed (or any similar malfunction) from: 10.1 Failure/disorder of the control system
4.11, 5.5.4 5.2.1, 5.2.3, 5.4.14 10.2 Restoration of energy supply after an interruption
4.11.4 5.2.8, 5.4.14 10.3 External influences on electrical equipment
4.11.11 5.4.9 10.5 Errors in the software
4.11.7 5.2.1 10.6 Errors made by the operator (due to mismatch of machinery with human characteristics and abilities, see 8.6) 4.9 4.8, 4.11.8, 4.11.10, 5.5.2, 6 5.2.4, 5.2.7, 5.3.3, 6.3, 6.4 11 Impossibility of stopping the machine in the best possible conditions
4.11.1, 4.11.3, 5.5.2 5.2.4, 5.2.5, 5.2.8, 5.2.9, 5.4.13, 6.4 l) (to be continued) SIST EN 1870-15:2005

No
Hazards
EN ISO 12100 Relevant clause of this document
Part 1: 2003 Part 2: 2003
13 Failure of the power supply
4.11.1, 4.11.4 5.2.8 14 Failure of the control circuit
4.11, 5.5.4 5.2.1, 5.2.9 15 Errors of fitting 4.9 4.7, 6.5 5.3.3, 5.4.12, 6.2, 6.3, 6.4 16 Break-up during operation 4.2.2 4.3 5.2.6, 5.3.2, 5.3.3, 6.4 17 Falling or ejected objects or fluids 4.2.1 4.2.2 4.3, 4.10 5.2.6, 5.3.2, 5.3.5, 5.3.6, 5.4.7, 5.4.8, 6.2 18 Loss of stability / overturning of machinery 4.2.2 5.2.6 5.3.1 5 Safety requirements and/or measures 5.1 General The machine shall comply with the safety requirements and/or protective measures of this clause. In addition, the machine shall be designed according to the principles of EN ISO 12100-1:2003 for hazards relevant but not significant, which are not dealt with by this document (e.g. sharp edges of the machine frame). For guidance in connection with risk reduction by design, see Clause 4 of EN 12100-2:2003 and for safeguarding measures, see Clause 5 of EN ISO 12100-2:2003. 5.2 Controls 5.2.1 Safety and reliability of control systems For the purposes of this document a safety related part of control system is one from and including the initial manual control or position detector to the point of input to the final actuator or element e.g. motor. The safety related parts of control system of this machine are those for the following functions:  starting and restarting of the saw-blade(s) rotation, the movements of the saw unit(s), the work-piece feed mechanism: Category 1 (see 5.2.3, 5.2.6);  normal stopping: Category 1 (see 5.2.4);  emergency stop: Category 1 or 3 (see 5.2.5);  interlocking: Category 1 (see 5.3.7);  interlocking between the feed chain motor with the position of the saw spindles: Category 1 (see 5.2.7);  interlocking with guard locking: Category 1 (see 5.3.7);  prevention unexpected start-up after failure of the power supply: Category 1 (see 5.3.8);  hold-to run control : Category 1 (see 5.3.7.3); SIST EN 1870-15:2005

EN 60204-1:1997; c) mechanically actuated position detectors for guards if they are actuated in the positive mode and their arrangement/fastening and the cam design/ mounting comply with the requirements of 5.2 and 5.3 of EN 1088:1995; d) interlocking devices with guard locking if they are at least an interlocking device with guard locking with manually operated delay device in accordance with the requirements in Annex N of EN 1088:1995; e) pneumatic and hydraulic components and systems if they comply with EN 983:1996 and EN 982:1996 respectively. Time delay devices used in hardwired safety related control circuits may be of Category B in accordance with the requirements of EN 954-1:1996 if the time delay device is designed for at least one million actuation. NOTE Also see EN ISO 13849-2:2003 for information about assessment of well-tried components, possible exclusion of faults etc. Electronic safety related control systems shall be in accordance with 9.4.2.2 (i.e. redundancy with cross-monitoring) or 9.4.2.3 (i.e. diversity) of EN 60204-1:1997. Verification: By checking the relevant drawings and/or circuit diagrams and inspection of the machine. For electrical components by requiring confirmation from the manufacturer of any component which declares conformity with the relevant standard. 5.2.2 Position of controls The main control devices for starting the saw spindles and integrated feed, normal stopping shall be located together and situated at a position from which the loading position can be seen. Where controls are located on a separate movable control console it shall be of the type with cable connection to the machine and its position relative to the machine shall be indicated in the instruction handbook (see 6.4). For positions of emergency stop see 5.2.5 and for the position of the hold-to-run control devices see 5.3.7.3. SIST EN 1870-15:2005

For the category of the normal stop function see 5.2.1. Verification: By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testing on the machine. SIST EN 1870-15:2005

± 1 mm. The clamping surface shall be at least 3 mm in width and recessed to the centre (see Figure 4). Precautions shall be taken to ensure that the saw-blade does not come loose during start up, running, run-down or braking, e.g. by using a positive connection between the spindle and saw-blade, or by using a positive connection between the front saw flange and the saw spindle. Verification: By checking the relevant drawings, measurement, inspection and relevant functional testing on the machine.
Figure 4 — Saw flange detail (clamping surface) SIST EN 1870-15:2005
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