Safety of transportable motor-operated electric tools -- Part 2-11: Particular requirements for combined mitre and bench saws

This European Standard applies to transportable combined mitre and bench saws with a saw blade
diameter not exceeding 315 mm and intended for cutting wood and analogous materials. This European Standard does not apply to transportable mitre and bench saws intended to be used to cut steel, iron, brass or food. This standard does not apply to
– single function bench saws;
– single function mitre saws;
– combined mitre and bench saws other than transportable.
NOTE Z101 Transportable single function bench saws are covered by EN 61029-2-1.
NOTE Z102 Transportable single function mitre saws are covered by EN 61029-2-9.
NOTE Z103 EN 1870-3 gives requirements for combined mitre and bench saws for cutting wood other than transportable.

Sicherheit transportabler motorbetriebener Elektrowerkzeuge -- Teil 2-11: Besondere Anforderungen für kombinierte Tisch- und Gehrungssägen

Sécurité des machines-outils électriques semi-fixes -- Partie 2-11: Règles particulières pour les scies d'établi-scies à mortaiser

Varnost premičnih električnih orodij - 2-11. del: Posebne zahteve za kombinirane krožne žage z delovno mizo in za zajeralne žage (IEC 61029-2-11:2001, spremenjen)

General Information

Status
Published
Publication Date
18-Nov-2009
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
23-Oct-2009
Due Date
28-Dec-2009
Completion Date
19-Nov-2009

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VSUHPHQMHQSicherheit transportabler motorbetriebener Elektrowerkzeuge -- Teil 2-11: Besondere Anforderungen für kombinierte Tisch- und GehrungssägenSécurité des machines-outils électriques semi-fixes -- Partie 2-11: Règles particulières pour les scies d'établi-scies à mortaiserSafety of transportable motor-operated electric tools -- Part 2-11: Particular requirements for combined mitre and bench saws25.140.20Electric tools25.080.60Strojne žageSawing machinesICS:Ta slovenski standard je istoveten z:EN 61029-2-11:2009SIST EN 61029-2-11:2009en,fr01-december-2009SIST EN 61029-2-11:2009SLOVENSKI

STANDARDSIST EN 61029-2-11:20041DGRPHãþD
SIST EN 61029-2-11:2009
EUROPEAN STANDARD EN 61029-2-11 NORME EUROPÉENNE
EUROPÄISCHE NORM October 2009

CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2009 CENELEC -

All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61029-2-11:2009 E
English version
Safety of transportable motor-operated electric tools -
Part 2-11: Particular requirements
for combined mitre and bench saws (IEC 61029-2-11:2001, modified)
Sécurité des machines-outils
électriques semi-fixes -
Partie 2-11: Règles particulières
pour les scies d'établi-scies à mortaiser(CEI 61029-2-11:2001, modifiée)
Sicherheit transportabler motorbetriebener Elektrowerkzeuge -

Teil 2-11: Besondere Anforderungen für kombinierte Tisch- und Gehrungssägen(IEC 61029-2-11:2001, modifiziert)

This European Standard was approved by CENELEC on 2009-06-01. CENELEC 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 national standards may be obtained on application to the Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

ICS 25.080.60; 25.140.20 Supersedes EN 61029-2-11:2003SIST EN 61029-2-11:2009

EN 61029-2-11:2009 - 2 - Foreword The text of the International Standard IEC 61029-2-11:2001, prepared by SC 61F (transformed into IEC TC 116, Safety of hand-held motor-operated electric tools), together with the common modifications prepared by the Technical Committee CENELEC TC 116, former TC 61F, Safety of hand-held motor-operated electric tools, was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 61029-2-11 on 2009-06-01. This European Standard supersedes EN 61029-2-11:2003. This revised version has been prepared to take into account the comments received from the MD consultant and the authority of the Netherlands. The following dates were fixed: – latest date by which the EN has to be implemented

at national level by publication of an identical
national standard or by endorsement
(dop) 2010-06-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn

(dow) 2012-06-01 This European Standard is divided into two parts: Part 1 General requirements, which are common to most transportable motor, operated tools (for the purpose of this European Standard referred to simply as tools) which could come within the scope of this European Standard. Part 2 Requirements for particular types of tool which either supplement or modify the requirements given in Part 1 to account for the particular hazards and characteristics of these specific tools. This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directives 98/37/EC (amended by Directive 98/79/EC) and 2006/42/EC. See Annexes ZZA and ZZB. Compliance with the relevant clauses of Part 1 together with a relevant Part 2 of this European Standard provides one means of confirming with the specified essential requirements of the Directive. The requirements defined in EN 1050 are also dealt with in this European Standard. The standard follows the overall requirements of EN ISO 12100-1 and EN ISO 12100-2. For noise and vibration this European Standard covers the requirements for their measurement, the provisions of information arising from these measurements and the provision of information about the Personal Protective Equipment required. Specific requirements for the reduction of the risk arising from noise and vibration through the design of the tool are not given as this reflects the current state of art. Warning: Other requirements arising from other European Directives can be applicable to the products falling within the scope of this European Standard. CEN has prepared standards for industrial machines, which may extend to transportable machines. Although CEN and CENELEC have where appropriate used common solutions to provide uniform levels of protection, persons using this European Standard should check the scope of both this and CEN standards to ensure that a correct standard is used. SIST EN 61029-2-11:2009

- 3 - EN 61029-2-11:2009 This Part 2-11 is to be used in conjunction with EN 61029-1:2009. This Part 2-11 supplements or modifies the corresponding clauses of EN 61029-1, so as to convert it into the European Standard: “Particular requirements for combined mitre and bench saws”. Where a particular subclause of Part 1 is not mentioned in this Part 2-11, that subclause applies as far as reasonable. Where this Part 2-11 states "addition" "modification" or "replacement", the relevant text of Part 1 is to be adapted accordingly. Clauses, subclauses, notes, tables and figures which are additional to those in Part 1 are numbered starting from 101. Clauses, subclauses, notes, tables and figures which are additional to those in IEC 61029-2-11 are prefixed "Z". NOTE In this standard the following print types are used: - requirements proper: in roman type;

- test specifications: in italic type;
- explanatory matter: in smaller roman type. SIST EN 61029-2-11:2009

EN 61029-2-11:2009 - 4 - Contents 1 Scope ................................................................................................................................................4 2 Definitions ..........................................................................................................................................6 3 General requirements ........................................................................................................................7 4 General notes on tests ......................................................................................................................7 5 Rating ................................................................................................................................................7 6 Classification .....................................................................................................................................7 7 Marking and information for use ........................................................................................................7 8 Protection against electric shock .......................................................................................................9 9 Starting ..............................................................................................................................................9 10 Input and current ...............................................................................................................................9 11 Heating ............................................................................................................................................10 12 Leakage current...............................................................................................................................10 13 Environmental requirements ...........................................................................................................10 14 Protection against ingress of foreign bodies and moisture resistance ............................................10 15 Insulation resistance and electric strength ......................................................................................10 16 Endurance .......................................................................................................................................11 17 Abnormal operation .........................................................................................................................11 18 Stability and mechanical hazards ....................................................................................................11 19 Mechanical strength ........................................................................................................................19 20 Construction ....................................................................................................................................20 21 Internal wiring ..................................................................................................................................22 22 Components ....................................................................................................................................22 23 Supply connection and external flexible cables and cords ..............................................................22 24 Terminals for external conductors ...................................................................................................22 25 Provision for earthing .......................................................................................................................22 26 Screws and connections ..................................................................................................................22 27 Creepage distances, clearances and distance through insulation ..................................................22 28 Resistance to heat, fire and tracking ...............................................................................................22 29 Resistance to rusting .......................................................................................................................22 30 Radiation .........................................................................................................................................22 Annex A (normative)

Normative references ..........................................................................................41 Annex ZD (informative)

Dust measurement ..........................................................................................40 Annex ZZA (informative)

Coverage of Essential Requirements of Directive 98/37/EC .........................41 Annex ZZB (informative)

Coverage of Essential Requirements of Directive 2006/42/EC .....................41 Figures Figure Z101 - Combined mitre and bench saw (Type “A”) .....................................................................23 Figure Z102 - Combined mitre and bench saw (Type “B”) .....................................................................24 Figure Z103 - Orientation of tool and operator .......................................................................................25 Figure Z104 - Saw blade areas - Combined mitre and bench saw in mitre saw position (Type “B”)......26 Figure Z105 - Self-closing guard - Opening angle ..................................................................................27 Figure Z106 - Open guard construction ..................................................................................................28 Figure Z107 - Guarding of saw blade relative to mitre saw table position (Type “A” machine) ..............28 SIST EN 61029-2-11:2009

- 5 - EN 61029-2-11:2009 Figure Z108 - Dimensions of test probe .................................................................................................29 Figure Z109 - Riving knife mounted guard .............................................................................................29 Figure Z110 - Top guard side walls ........................................................................................................30 Figure Z111 - Saw blade guard - Stability test ........................................................................................32 Figure Z112 - Guarding below the bench table (Type “B” machine) ......................................................33 Figure Z113 - Width of the slot in the table .............................................................................................33 Figure Z114 - Dimensions of the bench saw table .................................................................................34 Figure Z115 - Riving knife adjustment ....................................................................................................35 Figure Z116 - Riving knife testing - Strength of riving knife mounting ....................................................36 Figure Z117 - Riving knife testing - Strength of riving knife ....................................................................37 Figure Z118 - Two position rip fence ......................................................................................................38 Figure Z119 - Flange characteristics ......................................................................................................39 Figure Z120 - Example of push block and push stick .............................................................................40 Tables Table Z101 - Noise test conditions for combined mitre and bench saws ...............................................10 Table ZD.101 - Conditions for dust measurement .................................................................................42 SIST EN 61029-2-11:2009

EN 61029-2-11:2009 - 6 -

1 Scope This clause of Part 1 is applicable except as follows: 1.1 Addition: This European Standard applies to transportable combined mitre and bench saws with a saw blade diameter not exceeding 315 mm and intended for cutting wood and analogous materials. 1.2 Addition: This European Standard does not apply to transportable mitre and bench saws intended to be used to cut steel, iron, brass or food. This standard does not apply to

– single function bench saws; – single function mitre saws; – combined mitre and bench saws other than transportable. NOTE Z101

Transportable single function bench saws are covered by EN 61029-2-1. NOTE Z102
Transportable single function mitre saws are covered by EN 61029-2-9. NOTE Z103

EN 1870-3 gives requirements for combined mitre and bench saws for cutting wood other than transportable. 2 Definitions This clause of Part 1 is applicable except as follows: 2.21 Replacement: 2.21 normal load load to obtain rated input Addition: 2.101 combined mitre and bench saw saw intended to be used: a) as a down-cutting cross cut saw; b) as a circular bench saw. The saw may be of type “A” or type “B” as defined in 2.Z101 and 2.Z102 2.Z101 type “A” saw combined mitre and bench saw equipped with two tables: a mitre saw table having a fence to support the material to be cut as the saw blade is brought down and a bench table which supports the material to be cut as it is fed by hand towards to the saw blade. In mitre mode the saw blade is suspended over the mitre saw table from an arm, normally from a point located at the table or on a part of the frame of the machine. A sliding cutting movement may follow a downward cutting action or vice-versa. In bench mode the saw blade projects through a slot in the bench saw table (see Figure Z101) SIST EN 61029-2-11:2009

- 7 - EN 61029-2-11:2009 2.Z102 type “B” saw combined mitre and bench saw equipped with a single table which supports and positions the work piece during mitre and bench sawing operations. The saw blade is capable of being located either above or below the table. In the bench mode the saw blade projects through a slot in the table. In the mitre mode the saw blade is suspended over the table from an arm, normally from a point located at the table or on a part of the frame of the machine. In some cases a sliding movement follows a downward cutting action or vice-versa (see Figure Z102) 3 General requirement This clause of Part 1 is applicable. 4 General notes on tests This clause of Part 1 is applicable. 5 Rating This clause of Part 1 is applicable. 6 Classification This clause of Part 1 is applicable. 7 Marking and information for use This clause of Part 1 is applicable except as follows: 7.1 Addition: Combined mitre and bench saws shall be marked with – maximum and minimum saw blade diameter; – rated no-load speed; – indication of direction of rotation of the saw blade; – the maximum cutting depth for bench sawing operation; – saw blade bore diameter; – thickness of riving knife. If the top guard in bench mode is made of non-transparent material, an indication of the cutting line in alignment with the plane of the saw blade shall be marked on the top guard. 7.6 Addition: The direction of rotation of the blade shall be indicated on a fixed part of the saw in the vicinity of the spindle axis by an arrow raised or sunk, which is visible when changing the blade, or by any other means not less visible and indelible. SIST EN 61029-2-11:2009

EN 61029-2-11:2009 - 8 - Where the machine is designed to operate at more than one spindle speed, the following requirements shall apply: – on machines where a speed change is achieved by changing the position of the drive belts on the drive pulleys, the selected speed shall be indicated on the same side of the machine as the start control by a diagram showing the relevant speed selected for each combination of pulleys; – on machines where a speed change is achieved by an electronic control circuit, the selected speed shall be indicated on the machine at the selecting device (e.g. variable speed control dial provided with numerical speed settings). 7.13 Addition: The substance of the following instructions shall also be given. c) Safety precautions – warning to not use saw blades which are damaged or deformed; – warning to not use the saw without the guards in position, especially after a mode change, and instruction to keep guards in good working order and properly maintained;

– instruction to replace the table insert when worn;

– instruction to use only saw blades specified by the manufacturer, with a warning that the riving knife shall not be thicker than the width of the groove cut by the saw blade and not thinner than the body of the blade;

– instruction to ensure that the arm is securely fixed when bevelling; – warning to not use saw blades manufactured from high speed steel; – instruction to wear suitable personal protective equipment, this could include:

– hearing protection to reduce the risk of induced hearing loss;
– eye protection;
– respiratory protection to reduce the risk of inhalation of harmful dust;

– gloves for handling saw blades and rough material; (recommendation that saw blades should be carried in a holder wherever practicable); – instruction to always put the push-stick into storage when is not in use. e) Safe operation – lifting and transportation information: Information shall include where to lift and support the saw and when necessary a warning not to use guards for this purpose; – instruction to keep the floor area free of loose material e.g. chips and cut-offs; – instruction how to correctly replace and reposition the blade, including details for correct guard repositioning in mitre saw and bench saw mode; – instruction to use push-sticks or a push-block handle to avoid working with the hands close to the saw blade when using in the bench sawing mode; – recommendation that the operator shall be adequately trained in the use, adjustment and operation of the machine; – instruction to ensure that the arm is securely fixed when bevelling; – instruction to ensure that the arm is securely fixed in the working position in the bench sawing mode; – instruction to stop the saw when unattended; – instruction to ensure that the bench saw table is securely fixed at the chosen height (for type “A” saws only); – instruction to use sharp saw blades; – instruction to ensure the speed marked on the saw blade is at least equal to the speed marked on the saw; SIST EN 61029-2-11:2009

- 9 - EN 61029-2-11:2009 – instruction to ensure that any spacers and spindle rings used are suitable for the purpose as stated by the manufacturer; – when fitted with a laser: warning to not exchange the laser with a different type. Instruction that repairs shall only be carried out by laser manufacturer or an authorized agent; – instruction to ensure that the upper portion of the saw blade is completely enclosed in the mitre sawing mode;

– warning to refrain from removing any cut-offs or other parts of the work piece from the cutting area whilst the machine is running and the saw head is not in the rest position; – instruction how to use and correct adjustment of riving knife in the bench saw mode; – in bench saw mode, instruction whether and how rebating or grooving should be carried out, e.g. guarding requirements; – warning that the saw shall not be used for slotting (stopped groove); – information: a table giving guidance on spindle speed selection for different materials to be sawn shall be given for variable speed machines; – instruction that during transportation the upper part of the saw blade shall be covered, for example by the top guard or the saw blade is adjusted to the lowest position;

– instruction how to use and correct adjustment of the lower saw guard in bench sawing mode; – instruction how to perform cuts correctly and safely:

- in mitre saw mode, always to clamp work pieces to the saw table;
- to ensure before each cut that the machine is stable;
- if needed, to fix the machine to a work bench or the like;

- if needed, to support long work pieces with appropriate additional supports; – instruction how to clamp work pieces to the mitre table; – instruction how to support long work pieces; – instruction how to fix the machine to a workbench or the like; – information about the minimum size of the work piece; – information about the maximum cross-section size of the work piece for cross-cutting. The following information shall also be given: – the maximum and minimum diameters, thickness and bore diameter of saw blade which may be used; – maximum cutting depth; – about the types of cuts that can be performed by the machine and how to perform them; – for Type “B” saws: How to correctly locate the saw in either the mitre or bench sawing mode. NOTE

Sketches may be used to illustrate the modes of operation. 8 Protection against electric shock This clause of Part 1 is applicable. 9 Starting This clause of Part 1 is applicable. 10 Input and current This clause of Part 1 is applicable. SIST EN 61029-2-11:2009

EN 61029-2-11:2009 - 10 - 11 Heating This clause of Part 1 is applicable. 12 Leakage current This clause of Part 1 is applicable. 13 Environmental requirements This clause of Part 1 is applicable except as follows: 13.2.1 Addition: The most important sources of noise are – the work piece, – the saw blade, – the gear, – the motor/fan. NOTE

For general information concerning the reduction of noise see EN ISO 11688-1. 13.2.4 Replacement of Paragraphs 1, 2 and 3: Combined mitre and bench saws are tested in the bench mode under the conditions shown in Table Z101. Table Z101 - Noise test conditions for combined mitre and bench saws Material Cutting a horizontal piece of chipboard 800 mm x 400 mm x 19 mm Feed speed (3 ± 1) m/min Width of cut-off Approximately 10 mm wide strips (set by rip fence) across the 400 mm width of the chipboard Depth of cut

Blade adjusted to cut 22 mm Test time Five cuts quickly following each other, measurement starting 100 mm behind front edge up to end of the work piece. The sound pressure is averaged over the test work cycle. Tool bit New blade at the start of the test, tungsten carbide tipped for crosscutting and having the maximum diameter as recommended by the manufacturer Test position To be used on a bench above reflecting plane as shown in Figure 12 of Part 1

13.3.6.3 Replacement: Combined mitre and bench saws are tested at no-load in the mitre saw mode. 14 Protection against ingress of foreign bodies and moisture resistance This clause of Part 1 is applicable. 15 Insulation resistance and electric strength This clause of Part 1 is applicable. SIST EN 61029-2-11:2009

- 11 - EN 61029-2-11:2009 16 Endurance This clause of Part 1 is applicable. 17 Abnormal operation This clause of Part 1 is applicable except as follows: 17.1 Addition: Combined mitre and bench saws are considered to be saws in which moving parts are liable to be jammed, if equipped with an induction motor. 18 Stability and mechanical hazards This clause of Part 1 is applicable except as follows: 18.1 Addition: Combined mitre and bench saws shall be equipped with an adequate guarding system, which cannot be removed without the aid of a tool, except for the top guard. The guarding system shall comply with the requirements of 18.1.101, 18.1.102 and 18.1.103. 18.1.101 Blade guards 18.1.101.1 Mitre sawing mode Combined mitre and bench saws shall be provided with a combination of fixed and self-closing guards (see Figure Z104). The areas 1 and 2 of the machine are as shown in Figure Z104. The machine shall have a fixed guard to guard the area 1. This guard shall, as a minimum, cover the periphery of the saw blade within the area 1 and both sides of the saw blade within area 1 at least down to the root of the teeth, irrespective of the position of the saw unit. When the flange / clamping nut is not circular it shall be covered by a fixed guard. The top guard of bench saw mode shall be lockable in the mitre saw mode, or the bench saw table shall completely protect the blade when the top table is adjusted in the highest position (type “A” saw). In the rest position the machine shall have a combination of fixed and self-closing guards which guard the area 2. These guards shall, as a minimum, cover the periphery of the saw blade within the area 2 and both sides of the saw blade within area 2 at least down to the root of the teeth. See Figure Z104 for illustration. The guard shall comply with this requirement at any mitre and bevel position which is possible. The self-closing saw guard shall comply with either a) or b): a) The guard shall be of a U-shaped construction (see Figure Z101a), spring-loaded and/or connected by positive mode to the saw unit. The guard shall enclose the teeth of the blade. “Positive mode” means that the opening and closing of the guard is related to the corresponding up and down movement of the saw unit. SIST EN 61029-2-11:2009

EN 61029-2-11:2009 - 12 - Compliance is checked by inspection and the following test. The saw unit in the rest position at 90° to the table is subjected to a load of 100 N vertically downwards at the highest point of the operating handle. When applying the test probe of Figure Z108 in all positions, it shall not be possible to touch the teeth of the blade, taking into account any free movement of the guard. After manually actuating the release device the guard shall open either

– by further pressing the release device for an angle of maximum 60° to a perpendicular line through the spindle axis, see Figure Z105, or – by moving the saw unit down to come into contact with the work piece. Compliance is checked by inspection and by manual test. b) The guard shall be of an open guard construction (see Figure Z101b) which covers both sides of the saw blade teeth as shown in Figure Z106 and which opens when it makes contact with the work piece or the fence. The guard shall lie on the work piece or on the fence during cutting to afford maximum protection.

Compliance is checked by inspection and by measurement. The guard shall be locked in all rest positions. Compliance is checked by inspection and the following test. The saw unit in the rest position at 90° to the table is subjected to a load of 100 N vertically downwards at the highest point of the operating handle. The guard shall not give access to saw blade teeth when applying the test probe of Figure Z108. It shall be possible for an operator to unlock the guard without releasing the grip on the handle. Compliance is checked by manual test. 18.1.101.2 In cutting mode the front of the saw blade shall be guarded against inadvertent contact. Compliance is checked while the saw unit is at its lowest vertical position, its maximum extended horizontal position and no work piece present. A test rod with 12 mm diameter and 50 mm length is applied at all bevel and mitre angles. The longitudinal axis of the test probe shall be parallel to the table surface and be perpendicular to the cutting line. The test probe shall be equally shared about the cutting line. When the test probe is moved towards the saw blade, it shall not be able to touch its toothed rim. 18.1.101.3 For saws in mitre mode provided with

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