SIST EN 61029-2-11:2004
(Main)Safety of transportable motor-operated electric tools -- Part 2-11: Particular requirements for combined mitre and bench saws
Safety of transportable motor-operated electric tools -- Part 2-11: Particular requirements for combined mitre and bench saws
Applies to combined mitre-bench saws intended for cutting non-ferrous metals such as aluminium, wood or similar materials. The blade diameter does not exceed 350 mm.
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
En anglais seulement.
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
Relations
Standards Content (Sample)
SLOVENSKI SIST EN 61029-2-11:2004
STANDARD
marec 2004
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)
Safety of transportable motor-operated electric tools - Part 2-11: Particular
requirements for combined mitre and bench saws
ICS 25.080.60; 25.140.20 Referenčna številka
SIST EN 61029-2-11:2004(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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EUROPEAN STANDARD EN 61029-2-11
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2003
ICS 25.080.60; 25.140.20
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 Sicherheit transportabler
semi-fixes motorbetriebener Elektrowerkzeuge
Partie 2-11: Règles particulières pour les Teil 2-11: Besondere Anforderungen für
scies d'établi-scies à mortaiser kombinierte Tisch- und Gehrungssägen
(CEI 61029-2-11:2001, modifiée) (IEC 61029-2-11:2001, modifiziert)
This European Standard was approved by CENELEC on 2002-10-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61029-2-11:2003 E
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EN 61029-2-11:2003 - 2 -
Foreword
The text of the International Standard IEC 61029-2-11:2001, prepared by SC 61F, Safety of hand-
held motor-operated electric tools, of IEC TC 61, Safety of household and similar electrical
appliances, together with the common modifications prepared by the Technical Committee
CENELEC TC 61F, Hand-held and transportable electric motor-operated tools, was submitted to the
Unique Acceptance Procedure and was approved by CENELEC as EN 61029-2-11 on 2002-10-01.
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) 2004-04-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-10-01
In this document the common modifications to the International Standard are indicated by a vertical
line in the left margin of the text.
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 standard referred to simple as tools) which could
come within the scope of this 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 CEN/CENELEC by the
European Commission and European Free Trade Association and supports the essential health
and safety requirements of the Machinery Directive.
of the
Compliance with the relevant clauses of Part 1 together with a relevant Part 2 of this 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 standard.
For noise and vibration this 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 standard.
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CEN have prepared standards for industrial machines, which may extend transportable machines.
Although CEN and CENELEC have where appropriate used common solutions to provide uniform
levels of protection, person using this standard should check the scope of both this and CEN
standards to ensure that a correct standard is used.
EN 61029-2-11 is to be used in conjunction with EN 61029-1:2000.
EN 61029-2-11 supplements or modifies the corresponding clauses of EN 61029-1, so as to
convert it into the European Standard: Safety requirements for transportable combined mitre and
bench saws.
Where a particular subclause 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.
Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from
101.
Subclauses, 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,
-
Test specifications,
-
- Explanation matter.
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EN 61029-2-11:2003 - 4 -
Contents
1 Scope.6
2 Definitions.6
3 General requirements.7
4 General notes on test.7
5 Rating.7
6 Classification.7
7 Marking and information for use.7
8 Protection against electric shock.10
9 Starting.10
10 Input and current.10
11 Heating.11
12 Leakage current.11
13 Environmental requirements.11
14 Progress against ingress of foreign bodies and moisture resistance.12
15 Insulation resistance and electrical strength.12
16 Endurance.12
17 Abnormal operation.12
18 Stability and mechanical hazards .13
19 Mechanical strength.21
20 Construction.22
21 Internal wiring.23
22 Components.23
23 Supply connection and external flexible cables and cords.23
24 Terminals for external conductors .23
25 Provision for earthing.23
26 Screws and connections.23
27 Creepage distances, clearances and distances through insulation .24
28 Resistance to heat, fire and tracking .24
29 Resistance to rusting.24
30 Radiation.24
Figure Z101 – Combined mitre and bench saw (type A).25
Figure Z102 – Combined mitre and bench saw (type B).26
Figure Z103 – Orientation of tool and operator.27
Figure Z104 – Saw blade areas – Combined mitre and bench saw in mitre saw position (type B)28
Figure Z105 – Self-closing guard – Opening angle .29
Figure Z106 – Open guard construction.30
Figure Z107 – Dimensions test probe.31
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Figure Z108 – Riving knife mounted guard.31
Figure Z109 – Top guard side walls .32
Figure Z110a – Riving knife mounted saw blade guard – Stability test without saw blade.33
Figure Z110b – Saw blade guard mounted separately from the riving knife – Stability test .34
Figure Z111 – Guarding below the bench table – Type B machine .35
Figure Z112 – Width of the slot in the table.36
Figure Z113 – Dimensions of the bench saw table.36
Figure Z114 – Riving knife adjustment .37
Figure Z115 – Riving knife testing / strength of riving knife mounting.38
Figure Z116 – Riving knife testing / strength of riving knife .39
Figure Z117 – Two position rip fence .40
Figure Z118 – Flange characteristics .41
Figure Z119 – Example of push block and push stick .42
Table Z101 – Conditions for dust measurement.11
Table Z102 – Noise test conditions for combined mitre and bench saws .12
Table Z103 – Minimum dimensions of the saw table.17
Annex A (normative) Normative references.43
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EN 61029-2-11:2003 - 6 -
1 Scope
This clause of Part 1 is applicable except as follows:
1.1 Addition:
This standard applies to transportable combined mitre and bench saws with a saw blade diameter
not exceeding 315 mm and intended for cutting wood and analogue materials.
1.2 Addition:
This standard does not apply to transportable mitre and bench saws used to cut steel, iron, brass
or food.
Single function bench saws are covered by EN 61029-2-1.
Single function mitre saws are covered by EN 61029-2-9.
Combined mitre and bench saws other than transportable are covered by EN 1870-3.
2 Definitions
This clause of Part 1 is applicable except as follows:
2.2.21 Replacement:
2.21
normal load
the load to obtain rated input
2.101
combined mitre and bench saw
a saw that can 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 2.2.Z103 and 2.2.Z104
2.Z101
transportable combined mitre and bench saw
a mitre and bench saw designed to be used on a bench or a table similar to a bench and which is
intended to carry out work in a stationary position and is transportable by hand by one person
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2.Z102
type A saw
a 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)
2.Z103
type B saw
a combined mitre and bench saw equipped with a single table which supports and positions the
workpiece 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 requirements
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:
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EN 61029-2-11:2003 - 8 -
7.1
Addition:
Combined mitre and bench saws shall be marked with
– maximum and minimum saw blade diameter,
– rated no-load speed,
– the direction of rotation of the saw blade,
– maximum cutting depth capacity 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.
Mitre saws, which may be changed to different no-load speeds shall be marked, close to the
means of adjustment, with details of the method. This may be explained by means of drawings or
diagrams, etc.
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 or indelible.
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 be given.
c) Safety precautions
– do not use saw blades which are damaged or deformed;
– do not use the saw without the guards in position, especially after a mode change and keep
guards in good working order and properly maintained;
– replace the table insert when worn;
– use only saw blades recommended by the manufacturer and which conform to EN 847-1,
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;
– ensure that the arm is securely fixed when bevelling;
– do not use saw blades manufactured from high speed steel;
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– connect the saw to a dust collection device when sawing wood. In addition the operator
shall be informed of factors that influence exposure to dust and the precautions required i.e.
type of material to be worked and the importance of local extraction (capture at source) and
proper adjustment of hoods/baffles/chutes;
– wear suitable personal protective equipment when necessary, this could include:
– hearing protection to reduce the risk of induced hearing loss,
– respiratory protection to reduce the risk of inhalation of harmful dust,
– gloves for handling saw blades (saw blades shall be carried in a holder wherever
practicable) and rough material;
– take care that the selection of the saw blade accounts for the material to be cut;
– always put the push-stick into storage when is not in use;
d) Maintenance and servicing
– operators instructions on factors influencing exposure to noise (e.g. use of saw blades
designed to reduce the emitted noise and saw blade and machine maintenance;
– report faults in the machine, including guards or saw blades, as soon as they are
discovered;
e) Safe operation
– select the correct saw blade for the material to be cut;
– do not use the saw to cut materials other than those recommended by the manufacturer;
– lifting and transportation information, information including where to lift and support the
mitre saw and when necessary a warning not to use guards for this purpose;
– keep the floor area around the machine level, well maintained and free of loose materials
e.g. chips and cut-offs;
– provide adequate general or localized lighting;
– blade replacement procedure including prescriptions and warning for correct guard
repositioning in mitre saw and bench saw mode;
– use push-sticks or a push-block handle to avoid working with the hands close to the saw of
the machine blade when using in the bench sawing mode;
– the operator is adequately trained in the use, adjustment and operation of the machine;
– ensure that the arm is securely fixed when bevelling;
– ensure that the arm is securely fixed in the working position in the bench sawing mode;
– stop the saw when unattended;
– ensure that the bench saw table is securely fixed at the chosen height (for type A saws
only);
– use correctly sharpened saw blades. Observe the maximum speed marked on the saw
blade;
– ensure that any spacers and spindle rings used are suitable for the purpose as stated by
the manufacturer;
– when fitted with laser, no exchange with different type of laser is permitted. Repairs shall
only be carried out by laser manufacturer or authorized agent;
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EN 61029-2-11:2003 - 10 -
– ensure that the upper portion of the saw blade is completely enclosed in the mitre sawing
mode;
– blade replacement procedure including the method for repositioning and a warning that this
must be carried out correctly;
– ensure that the machine is fixed to a bench, whenever possible;
– refrain from removing any cut-offs or other parts of the workpiece from the cutting area
whilst the machine is running and the saw head is not in the rest position;
– how to support long workpieces;
– use and correct adjustment of riving knife in the bench saw mode;
– rebating or grooving should not be carried out unless suitable guarding, such as a tunnel
guard, is fitted as top guard;
– the saw shall not be used for slotting (stopped groove);
– a table giving guidance on spindle speed selection for different materials to be sawn shall
be given for variable speed machines;
– 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;
– use and correct adjustment of the lower saw guard in bench sawing mode.
The following information shall be given:
– the maximum and minimum diameters, thickness and bore diameter of saw blade which
may be used;
– maximum depth of cut;
– if double bevelling is possible, the safe method of operation;
– for type B saws: How to correctly locate the saw in either the mitre or bench sawing mode;
– description of residual risks;
– results of the dust efficiency measured as defined in 13.1.
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.
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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 the following:
13.1 Replacement:
Combined mitre and bench saws are tested under load in the bench circular saw mode, orientation
within the cabin and under the conditions as given in Table Z101.
Table Z101 - Conditions for dust measurement
Material Cutting a horizontal piece of chipboard 800 mm x 40 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 chip board
Depth of cut Blade adjusted to cut 22 mm
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
Integral collection Emptied during each 2 min rest time
(if any)
Orientation Across the width of the cabin with air flow from left to right side of operator
(see Figure Z103)
Test cycle Three cuts per min across the width of the workpiece for 10 min, followed by
2 min rest time (total 12 min)
Test period Five complete cycles (total 1 h)
13.2.1 Addition:
The most important sources of noise are
– the workpiece,
– the saw blade,
– the gear,
– the motor/fan.
For general information concerning the reduction of noise see EN ISO 11688-1.
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EN 61029-2-11:2003 - 12 -
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 Z102.
Table Z102 - 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, measurement starting 100 mm behind front edge up to end of the
workpiece
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
13.3.3 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.
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.
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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 18.1.1.1 and 18.1.1.2.
18.1.101 Blade guards
18.1.101.1 Mitre sawing mode
Mitre and bench saws shall be provided with a combination of self-closing, fixed and/or adjustable
guards (see Figure Z104).
The area 1 shall be permanently guarded with a guard which as a minimum covers the periphery of
the saw blade and both sides of the teeth down at least to the level of the base of the teeth
independent of the position of the saw unit. 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 table is
adjusted in the highest position (type A saw).
In the rest position the area 2 shall be guarded by a combination of fixed and self-closing guard
which as a minimum covers the periphery of the saw blade and both sides of the saw teeth down at
least to the level of the base of the teeth
The guard shall comply with this requirement at any mitre and bevel position in which the saw can
be used.
The self-closing saw guard in the area 2 shall be either
a) of a U-shaped construction, spring loaded to be self-closing or connected in a positive mode
with the saw unit, which encloses the teeth of the blade (see Figure Z101);
Positive mode means the opening and closing of the guard is related to the corresponding up
and down movement of the saw unit.
The guard shall be completely closed in the rest position and shall be opened either
1) on the feed side for 60° to a perpendicular line through the spindle axis by manually
actuating the release device (see Figure Z105), or
2) when the saw unit is moved down to come into contact with the workpiece.
For a saw unit provided with spring loaded guard and having a blade diameter less than
210 mm, the closing time of the self-closing guard from the fully open position or from the
position corresponding to maximum cutting depth shall not exceed 0,2 s.
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EN 61029-2-11:2003 - 14 -
For a saw unit provided with spring loaded guard and having a blade diameter of 210 mm and
above, the closing time in seconds of the self-closing guard from the fully open position to the
fully closed position shall be less than the numerical equivalent of the largest recommended
blade diameter, expressed in meters, but not more than 0,3 seconds. During the measurement,
the saw unit is set to cut at right angle.
or
b) of an open guard construction (see Figure Z101), which only covers both sides of the saw
blade teeth which extends beyond the periphery of the saw blade in accordance with the
dimensions given in Figure Z106. This self-closing guard shall open when it makes contact with
the workpiece or the fence. The guard shall lie on the workpiece or on the fence during cutting
to afford maximum protection.
In the rest position of the saw unit the self-closing guard shall be locked in a positive mode.
When set for transportation the self-closing guard shall cover the teeth of the blade to the front of
t
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