SIST EN 60745-2-5:2007
(Main)Hand-held motor-operated electric tools - Safety -- Part 2-5: Particular requirements for circular saws
Hand-held motor-operated electric tools - Safety -- Part 2-5: Particular requirements for circular saws
This clause of Part 1 is applicable, except as follows: Addition: This standard applies to all types of circular saws. Circular saws hereinafter will be referred to as saws. This standard does not apply to saws used with abrasive wheels.
Handgeführte motorbetriebene Elektrowerkzeuge - Sicherheit -- Teil 2-5: Besondere Anforderungen für Kreissägen
Outils électroportatifs à moteur - Sécurité -- Partie 2-5: Règles particulières pour les scies circulaires
Traite de la sécurité des outils électriques portatifs à moteur ou à entraînement magnétique, exigences spécifiques pour tous les types de scies circulaires. La tension assignée n étant pas supérieure à 250 V pour les outils monophasés alimentés en courant alternatif ou pour les outils alimentés en courant continu, et 440 V pour les outils triphasés alimentés en courant alternatif. La présente norme ne s'applique pas aux scies utilisées avec des roues abrasives.
Električna ročna orodja - Varnost - 2-5. del: Posebne zahteve za krožne žage (IEC 60745-2-5:2006, spremenjen)
Uporablja se ta klavzula prvega dela, razen kot sledi: Dodatek: Ta standard velja za vse vrste krožnih žag. V nadaljevanju se krožne žage imenujejo žage. Ta standard ne velja za žage, ki se uporabljajo z brusilnimi ploščami.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60745-2-5:2007
01-november-2007
1DGRPHãþD
SIST EN 60745-2-5:2003
SIST EN 60745-2-5:2003/OprA2:2004
(OHNWULþQDURþQDRURGMD9DUQRVWGHO 3RVHEQH]DKWHYH]DNURåQHåDJH ,(&
VSUHPHQMHQ
Hand-held motor-operated electric tools - Safety -- Part 2-5: Particular requirements for
circular saws
Handgeführte motorbetriebene Elektrowerkzeuge - Sicherheit -- Teil 2-5: Besondere
Anforderungen für Kreissägen
Outils électroportatifs à moteur - Sécurité -- Partie 2-5: Règles particulières pour les
scies circulaires
Ta slovenski standard je istoveten z: EN 60745-2-5:2007
ICS:
25.080.60 Strojne žage Sawing machines
25.140.20 (OHNWULþQDRURGMD Electric tools
SIST EN 60745-2-5:2007 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN 60745-2-5
NORME EUROPÉENNE
March 2007
EUROPÄISCHE NORM
ICS 25.140.20; 25.140.30 Supersedes EN 60745-2-5:2003
English version
Hand-held motor-operated electric tools -
Safety -
Part 2-5: Particular requirements for circular saws
(IEC 60745-2-5:2006, modified)
Outils électroportatifs à moteur - Handgeführte motorbetriebene
Sécurité - Elektrowerkzeuge -
Partie 2-5: Règles particulières Sicherheit -
pour les scies circulaires Teil 2-5: Besondere Anforderungen
(CEI 60745-2-5:2006, modifiée) für Kreissägen
(IEC 60745-2-5:2006, modifiziert)
This European Standard was approved by CENELEC on 2006-11-01. 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.
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
© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60745-2-5:2007 E
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EN 60745-2-5:2007 - 2 -
Foreword
The text of document 61F/643/FDIS, future edition 4 of IEC 60745-2-5, prepared by SC 61F,
Safety of hand-held motor-operated electric tools, of IEC TC 61, Safety of household and similar
electrical appliances, was submitted to the IEC-CENELEC parallel vote.
A draft amendment, prepared by the Technical Committee CENELEC TC 61F, Safety of
hand-held and transportable motor-operated electric tools, to bring the European Standard in line
with the essential health and safety requirements of the Machinery Directive, was submitted to the
formal vote.
The combined texts were approved by CENELEC as EN 60745-2-5 on 2006-11-01.
This European Standard supersedes EN 60745-2-5:2003.
Main changes include: Clause 19: Mechanical hazards, clarifications in respect to the guarding;
editorial modifications in Annex AA, the addition of Annex M: Safety of working stands for
operation with hand-held motor-operated electric tools and editorial modifications to match with
EN 60745-1:2006.
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) 2007-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-11-01
This standard is divided into two parts:
Part 1: General requirements which are common to most hand-held electric motor operated tools
(for the purpose of this standard referred to simply as tools) which could come within the
scope of this standard;
Part 2: Requirements for particular types of tools 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 health and
safety requirements of EC Directive 98/37/EC, amended by EC Directive 98/79/EC. See
Annex ZZ.
Compliance with the clauses of Part 1 together with this Part 2 provides one means of conforming
with the essential health and safety requirements of the Directive concerned.
CEN/TC 255 is producing standards for non-electric circular saws (EN 792-12).
Warning: Other requirements and other EC Directives can be applicable to the products falling
within the scope of this standard.
This standard follows the overall requirements of EN ISO 12100-1 and EN ISO 12100-2.
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- 3 - EN 60745-2-5:2007
This Part 2-5 is to be used in conjunction with EN 60745-1:2006. When this standard states
"addition", "modification" or "replacement", the relevant text in Part 1 is to be adapted accordingly.
Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from
101; additional annexes are lettered AA, BB, etc.
Subclauses, tables and figures which are additional to those in IEC 60745-2-5:2006 are prefixed
“Z”.
Annexes ZA and ZZ have been added by CENELEC.
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.
__________
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EN 60745-2-5:2007 - 4 -
Endorsement notice
The text of the International Standard IEC 60745-2-5:2006 was approved by CENELEC as a
European Standard with agreed common modifications as given below.
COMMON MODIFICATIONS
2 Normative references
Replace the text by:
This clause of Part 1 is applicable, except as follows:
Addition:
EN 847-1:1997, Tools for woodworking - Safety requirements - Part 1: Milling tools and circular
saw blades
6 Void
Replace by:
6 Environmental requirements
This clause of Part 1 is applicable, except as follows:
6.1.2.4 Modification:
Circular saws are held and used as specified in 6.1.2.5.
6.1.2.5 Modification:
Circular saws are tested under load observing the conditions shown in Table Z101.
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- 5 - EN 60745-2-5:2007
Table Z101 – Operating conditions for circular saws
Cutting a horizontal piece of chipboard with minimum dimensions
Orientation
800 mm x 600 mm and a thickness depending on maximum cutting depth of
the circular saw
maximum cutting depth 40 mm: chipboard thickness 19 mm
maximum cutting depth > 40 mm: chipboard thickness 38 mm
The board shall be firmly fixed by screws or clamps to a test bench using
resilient material. It shall be mounted so that it does not have any significant
resonance in the frequency range that can influence the test result.
The board excess end shall be 250 mm from the clamped area and shall be
readjusted at the beginning of each series of tests.
Tool bit New blade as recommended by the manufacturer for cutting chipboard
Feed force Just sufficient to cut at a brisk pace. Equal force shall be applied to both
handles, if applicable. Excessive grip forces shall be avoided.
Test cycle One test cycle is given by cutting off one approximately 10 mm wide strip (set
by rip fence if available) across the 600 mm width of the chipboard.
The measurement starts when the blade enters the wood and finishes when
the blade leaves the wood.
6.2 Vibration
6.2.4.2 Location of measurement
Addition:
Figure Z101 shows the positions on the main handle and the auxiliary handle, if applicable.
6.2.6.3 Operating conditions
Addition:
Circular saws are tested under load observing the conditions shown in Table Z101.
6.2.7.2 Declaration of the vibration emission value
Addition:
The vibration emission value a of the handle with the highest emission and the uncertainty K
h
shall be declared.
8 Marking and instructions
8.12.2 a) Add to the addition:
Z101) Instruction on the correct use of the dust collection system
Z102) Instruction to wear a dust mask
Z103) Instruction to only use saw blades recommended
Z104) Instruction to always wear hearing protection
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EN 60745-2-5:2007 - 6 -
8.12.2 b) Add to the addition:
Z101) Maximum cutting depth
19 Mechanical hazards
Add after 19.106:
19.Z101 The saw blade(s) delivered with the tool shall comply with EN 847-1.
Compliance is checked by inspection.
21 Construction
Add:
21.Z1 Addition:
Circular saws are considered to be tools where a considerable amount of dust is produced.
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- 7 - EN 60745-2-5:2007
Add the following new figure:
Figure Z101 – Positions of transducers for circular saws
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EN 60745-2-5:2007 - 8 -
Annex M
(normative)
Safety of working stands for operation
with hand-held motor-operated electric tools
M.19.1.302.2.3 Replace the last paragraph by:
– For riving knife mounted saw blade guards, the guard shall be subjected to a load of 5 N
at the front edge of the guard as defined in Figure M.302. The maximum deflection shall
not be more than 15 mm.
– For separately from riving knife mounted saw blade guards, the guard shall be subjected
to a load of 20 N at the front edge of the guard as defined in Figure M.302. The maximum
deflection shall not be more than 8,0 mm.
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- 9 - EN 60745-2-5:2007
Add the following annexes:
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of the
referenced document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
– – Tools for woodworking - Safety EN 847-1 1997
requirements -
Part 1: Milling tools and circular saw
blades
Annex ZZ
(informative)
Coverage of Essential Requirements of EC Directives
This European Standard has been prepared under a mandate given to CENELEC by the
European Commission and the European Free Trade Association and within its scope the
standard covers all relevant essential requirements as given in Annex I EC Directive 98/37/EC
(Machinery Directive), amended by Directive 98/79/EC.
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directives concerned.
WARNING: Other requirements and other EC Directives may be applicable to the products falling
within the scope of this standard.
_______
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NORME CEI
INTERNATIONALE
IEC
60745-2-5
INTERNATIONAL
Quatrième édition
STANDARD
Fourth edition
2006-07
Outils électroportatifs à moteur –
Sécurité –
Partie 2-5:
Règles particulières pour
les scies circulaires
Hand-held motor-operated electric tools –
Safety –
Part 2-5:
Particular requirements for circular saws
IEC 2006 Droits de reproduction réservés Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
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électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
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Pour prix, voir catalogue en vigueur
For price, see current catalogue
---------------------- Page: 11 ----------------------
60745-2-5 IEC:2006 – 3 –
CONTENTS
FOREWORD.7
1 Scope.11
2 Normative references .11
3 Terms and definitions .11
4 General requirements .13
5 General conditions for the tests .13
6 Void.13
7 Classification.13
8 Marking and instructions.13
9 Protection against access to live parts.21
10 Starting .21
11 Input and current .21
12 Heating .21
13 Leakage current .21
14 Moisture resistance .21
15 Electric strength .21
16 Overload protection of transformers and associated circuits .21
17 Endurance.21
18 Abnormal operation .23
19 Mechanical hazards.23
20 Mechanical strength .33
21 Construction .33
22 Internal wiring.33
23 Components .33
24 Supply connection and external flexible cords .33
25 Terminals for external conductors.33
26 Provision for earthing .33
27 Screws and connections .35
28 Creepage distances, clearances and distances through insulation.35
29 Resistance to heat, fire and tracking.35
30 Resistance to rusting.35
31 Radiation, toxicity and similar hazards.35
Annexes .53
Annex K (normative) Battery tools and battery packs .53
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources.53
Annex M (normative) Safety of working stands for operation with hand-held motor-
)
operated electric tools .55
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60745-2-5 IEC:2006 – 5 –
Annex AA (normative) Additional requirements for saws with a riving knife .83
Annex BB (normative) Additional requirements for lower guards for saws without a
riving knife .89
Bibliography.91
Figure 101 – Circular saw with outer pendulum guard .37
Figure 102 – Circular saw with inner pendulum guard .37
Figure 103 – Circular saw with tow guard.37
Figure 104 – Plunge type saw.37
Figure 105 – Test probe 'a' .39
Figure 106 – Aperture for blade and/or riving knife in the lower guard and aperture of
the upper guard .39
Figure 107 – Distance from the gripping surface to the blade’s cutting zone .41
Figure 108a – Height of viewing aperture.43
Figure 108b – Dimension U.43
Figure 108 – Height restriction of the viewing aperture (see 19.101.2.1) .43
Figure 109 – Distance from the edge of the lateral side of the upper guard
to the guide plate .45
Figure 110 – Test probe 'b' .45
Figure 111 – Accessibility to the front cutting edge zone.47
Figure 112 – Blade exposure angle of the lower guard.49
Figure 113 – Principal dimensions of the guide plate .49
Figure 114 – Flange characteristics .51
Figure M.301 – Saw table fitted with hand-held circular saw .73
Figure M.302 – Testing the stability of the guard support .75
Figure M.303 – Saw table dimensions.77
Figure M.304 – Position of the outfeed end of the rip fence.77
Figure M.305 – Rip fence in low position.79
Figure M.306 – Examples of shapes of slot for locating cross-cut fence on saw tables.79
Figure M.307 – Examples of push stick and push blocks.81
Figure AA.101 – Riving knife stability test .87
Figure AA.102 – Riving knife adjustment.87
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60745-2-5 IEC:2006 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –
Part 2-5: Particular requirements for circular saws
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60745-2-5 has been prepared by subcommittee 61F: Safety of
hand-held motor-operated electric tools, of IEC technical committee 61: Safety of household
and similar electrical appliances.
This fourth edition cancels and replaces the third edition published in 2003, of which it
constitutes a technical revision. Main changes include: Clause 19: Mechanical hazards,
clarifications in respect to the guarding, editorial modifications in Annex AA, the addition of
Annex M: Safety of working stands for operation with hand-held motor-operated electric tools
and editorial modifications to match with the fourth edition of IEC 60745-1.
---------------------- Page: 14 ----------------------
60745-2-5 IEC:2006 – 9 –
The text of this standard is based on the following documents:
FDIS Report on voting
61F/643/FDIS 61F/644/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-5 is to be used in conjunction with the latest edition of IEC 60745-1, Hand-held
motor-operated electric tools – Safety – Part 1: General requirements. It was established on
the basis of the fourth edition (2006) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60745-1.
This part 2 supplements or modifies the corresponding clauses of IEC 60745-1, so as to
convert that publication into the IEC standard: Safety requirements for circular saws.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, items, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– additional annexes are lettered AA, BB, etc.
NOTE 3 In this standard, the following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in smaller roman type.
A list of all parts of IEC 60745 series, under the general title Hand-held motor-operated
electric tools – Safety, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
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60745-2-5 IEC:2006 – 11 –
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –
Part 2-5: Particular requirements for circular saws
1 Scope
This clause of Part 1 is applicable, except as follows:
Addition:
This standard applies to all types of circular saws. Circular saws hereinafter will be referred to
as saws. This standard does not apply to saws used with abrasive wheels.
2 Normative references
This clause of Part 1 is applicable.
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
Additional definitions:
3.101
circular saw
tool intended for cutting various materials with a rotating toothed blade
3.102
cutting edge zone
the outer 20 % of the blade’s radius
3.103
guide plate
the part of the saw resting on the material to be cut (see Figure 113)
3.104
lower guard
movable blade-covering device which, in the closed or rest position, is generally situated
below the guide plate
3.105
upper guard
fixed and/or movable cover of the blade situated above the guide plate
3.106
riving knife
metal part placed in the plane of the saw blade with the intent of preventing the workpiece
from closing on the rear part of the saw blade
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60745-2-5 IEC:2006 – 13 –
3.107
saw with outer pendulum guard
saw having a lower guard which swings outside the upper guard (see Figure 101)
3.108
saw with inner pendulum guard
saw having a lower guard which swings inside the upper guard (see Figure 102)
3.109
saw with tow guard
saw having a lower guard which slides along the upper guard (see Figure 103)
3.110
kickback
sudden reaction to a pinched, bound or misaligned saw blade, causing an uncontrolled saw to
lift up and out of the workpiece
3.111
plunge type saw
saw having only an upper guard into which the saw blade retracts when not in use (see
Figure 104)
4 General requirements
This clause of Part 1 is ap
...
SLOVENSKI SIST EN 60745-2-
5:2003/OprA1:2004
PREDSTANDARD
september 2004
Varnost električnih ročnih orodij - 2-5. del: Posebne zahteve za krožne žage
Safety of hand-held motor-operated electric tools - Part 2-5: Particular requirements
for circular saws
ICS 25.140.20 Referenčna številka
SIST EN 60745-2-
5:2003/OprA1:2004(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
---------------------- Page: 1 ----------------------
61F/567/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJET DE COMITÉ POUR VOTE (CDV)
Project number IEC 60745-2-5-A1 Ed. 3.0
Numéro de projet
IEC/TC or SC: Date of circulation Closing date for voting (Voting
SC 61F
Date de diffusion mandatory for P-members)
CEI/CE ou SC:
Date de clôture du vote (Vote
2004-06-04
obligatoire pour les membres (P))
2004-11-05
Titre du CE/SC: TC/SC Title: Safety of hand-held motor-operated
electric tools.
Secretary: Robert G. Stoll
Secrétaire:
Also of interest to the following committees Supersedes document
Intéresse également les comités suivants Remplace le document
61F/530/CD and 61F/538A/CC
Functions concerned
Fonctions concernées
Safety EMC Environment Quality assurance
Sécurité
CEM Environnement Assurance qualité
CE DOCUMENT EST TOUJOURS À L'ÉTUDE ET SUSCEPTIBLE DE THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT
MODIFICATION. IL NE PEUT SERVIR DE RÉFÉRENCE. SHOULD NOT BE USED FOR REFERENCE PURPOSES.
LES RÉCIPIENDAIRES DU PRÉSENT DOCUMENT SONT INVITÉS À RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR
PRÉSENTER, AVEC LEURS OBSERVATIONS, LA NOTIFICATION DES COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF
DROITS DE PROPRIÉTÉ DONT ILS AURAIENT ÉVENTUELLEMENT WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING
CONNAISSANCE ET À FOURNIR UNE DOCUMENTATION EXPLICATIVE. DOCUMENTATION.
Titre : Title : IEC 60745-2-5-A1 Ed 3.0: Safety of hand-
held motor-operated electric tools - Part 2-5:
Particular requirements for circular saws.
Note d'introduction Introductory note
ATTENTION ATTENTION
CDV soumis en parallèle au vote (CEI) Parallel IEC CDV/CENELEC Enquiry
et à l’enquête (CENELEC)
Copyright © 2004 International Electrotechnical Commission, IEC. All rights reserved. It is
permitted to download this electronic file, to make a copy and to print out the content for the sole
purpose of preparing National Committee positions. You may not copy or "mirror" the file or
printed version of the document, or any part of it, for any other purpose without permission in
writing from IEC.
FORM CDV (IEC)
2002-05-14
---------------------- Page: 2 ----------------------
60745-2-5 Amend 1/Ed 3.0/CDV © IEC 2
Add, after Annex L, the following new Annex M:
Annex M
(normative)
Safety of working stands for operation with hand-held motor operated electric
tools
M.1 Scope
This clause of Part 2 is applicable, except as follows:
M.1.1 Addition:
This standard applies to saw tables intended to be equipped with hand-held motor operated circular
saws with a maximum saw blade diameter of 260 mm intended for cutting wood and similar
materials.
All clauses of this Part 2 apply unless otherwise specified in this annex.
M.2 Normative references
This clause of Part 1 is applicable.
M.3 Definitions
M.3.101
saw table
working stand with which a hand-held circular saw can be used similar to a circular saw bench in a
stationary position (see Figure M.1)
M.3.102
blade guard
protection mounted above the saw table which prevents access to the saw blade
M.3.103
electrical system
mains connection and associated control systems
M.8 Marking and instructions
This clause of Part 1 is applicable except as follows:
M.8.1 Replacement:
Saw tables shall be marked with:
− rotation direction of the saw blade
− maximum cutting depth or maximum saw blade diameter
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− rated voltage and maximum rated input or current
NOTE Saw tables with electrical systems require voltage and input or current ratings.
Compliance is checked by inspection.
M.8.12.1 Addition:
The operating instruction shall contain warning statements on the following subjects:
− Not to use hand to remove loose splinters, chips and similar parts of the workpiece from the
vicinity of the moving saw blade;
− Not to use the saw table outdoor when raining;
− Not to perform any sawing operation “Freehand”, i.e. guiding the workpiece only with hand,
without rip fence or miter gauge.
Compliance is checked by inspection.
M.8.12.2 Addition:
The operating instruction shall contain the substance of the following, if applicable:
− Information how to fit the hand-held saw to the saw table;
− Information how to replace the riving knife of the hand-held saw by the blade guard support with
riving knife function and its adjustment;
− Instruction to store the push stick or push block always with the saw table when not in use;
− Proper use of the blade guard;
− Information explaining the phenomenon of kickback and instructions for cutting procedures to
avoid the kickback;
− Proper use and adjustment for the riving knife;
− Recommended operator’s body and hand positions during the operation;
− Recommended procedures for securing the saw to the saw table;
− Procedures for cross-cutting and ripping. Proper use of cross-cut fence (miter gauge) and the rip
fence;
− Alignment of the blade with the rip fence and with the cross-cut fence (miter gauge) slots;
− Recommended procedures for depth of cut and bevel angle adjustments;
− Recommendation on how to support the workpiece on the outfeed side and on the side of the
table surface;
− Recommended procedures for slotting and rabbeting;
− Proper use and basic construction guidelines for work helpers, such as push stick, push block,
auxiliary fence and featherboard;
− Procedure for changing and adjusting the table insert;
− Inappropriate applications of saw table, i.e. not to use the saw table for cutting firewood logs;
− Selection of the saw blade depending on the material to be cut.
− Inspection for a deformed or damaged saw blade;
− Connecting the circular saw to a dust collecting device when sawing.
M.19 Mechanical hazards
This clause of Part 1 is applicable except as follows:
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Additional subclauses:
M.19.1 Addition:
The saw table shall be equipped with an adequate guarding system which shall comply with the
requirements of M.19.1.101 to M.19.1.102.
M.19.1.101 Guarding below the table top
If the design of the saw table is such that the guide plate of the circular saw is not in contact with
the table plate, the cutting edge zone of the saw blade between the guide plate and the table plate
shall be guarded by a fixed guard in any position.
Compliance is checked by inspection and by the following test.
The test probe “a” shown in Figure 105 in minimum and maximum depth of cut and any inclination
of the saw blade to check accessibility of the saw blade teeth of all saws recommended by the
manufacturer in the area between guide plate and table plate.
M.19.1.102 Guarding above the table top
M.19.1.102.1 Blade guard
A blade guard shall be provided to guard that portion of the saw blade above the table top which is
not required for cutting.
Circular saw tables shall have a blade guard for the crown and the front of the saw blade that may
be an adjustable guard, a self-closing guard or a combination of these. An adjustable guard when
adjusted shall remain in any position necessary to give the required protection.
M.19.1.102.1.1 The blade guard shall be designed to prevent contact with the periphery and/or
both sides of the toothed rim of the saw blade, the riving knife being considered as a safety
measure against touching the rising part of the toothed rim. This protection shall be given at any
tilted position of the saw blade. The blade guard shall be capable of being lowered or turned down
onto the table surface in front of the saw blade.
Compliance is checked by inspection.
M.19.1.102.1.2 The blade guard shall be made of material (e.g. plastic, aluminium) which is easy
to cut by saw blades. On non-transparent blade guards, the line of the cut shall be indicated.
Compliance is checked by inspection.
M.19.1.102.1.3 The blade guard shall be fitted with an exhaust outlet.
Compliance is checked by inspection and the following test.
It shall not be possible to touch dangerous moving parts with the test probe "a" of Figure 105
through dust collection openings after the removal of the removable provisions. During the test, the
adjustable guard shall be against the table top and the circular saw with the highest intended
cutting depth shall be mounted.
M.19.1.102.1.4 The blade guard side walls shall either have a minimum thickness of 6 mm or
shall have internal ribs with a minimum thickness of 3 mm designed to bear against the body of the
saw blade in order to minimize the risk of damage to the blade guard.
Compliance is checked by inspection.
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M.19.1.102.1.5 The blade guard shall be so designed that it raises when leading in the workpiece
to be cut which has a thickness of 20 mm above the adjusted height of the blade guard.
Compliance is checked by inspection and by manual test.
M.19.1.102.2 Blade guard support
M.19.1.102.2.1 The blade guard shall be held by a blade guard support which is placed either
− in the cutting line and has the function of a riving knife at the same time, or
− outside the cutting line.
Replacing of the riving knife by a guard support, which has the function of a riving knife at the same
time, is permitted only when this is specified by the manufacturer of the circular saw.
Compliance is checked by inspection.
M.19.1.102.2.2 A blade guard support placed outside the cutting slot shall be arranged such that
it is possible to saw with the maximum cutting width which can be set by the rip fence without being
impeded by the blade guard support.
Compliance is checked by inspection.
M.19.1.102.2.3 The blade guard support shall have sufficient stability.
Compliance is checked by the following test, carried out without a saw blade fitted.
The following applies (see Figure M.2):
− Position „X“ is the part of the guard nearest to the operator on the infeed side.
− Position „Y“ is the part of the guard which is in line with the very first tooth of the saw blade
intended for maximum cutting depth.
The blade guard shall be subjected to a load of 20 N at the front edge of the blade guard (position
”X”), first in the direction „A“ and then in direction „B“. The distance between both deflections,
measured at point „Y“, shall not be more than 30 mm.
M.19.1.103 Riving knife
M.19.1.103.1 Saw tables which are ready for operation shall be equipped with a riving knife. This
requirement is met when a hand-held circular saw with its own riving knife is installed.
For mounting a circular saw without riving knife, a riving knife shall be separately installed which
allows adjustment at each cutting depth.
The riving knife shall be rigidly fixed within the cutting depth and be in alignment with the plane of
the blade and disposed to it so as to pass freely through the cutting groove; it shall not contact the
blade. The position of the riving knife shall not change as a result of operation.
Compliance is checked by inspection and by the following test.
The riving knife is adjusted to the maximum distance specified in AA.19.102. The fastening screws
of the riving knife are tightened with a torque specified by the manufacturer. At the centre of the
riving knife tip, a force of 100 N is applied for 1 min in the cutting direction and parallel to the guide
plate, as shown in Figure AA.101.
During the test, the riving knife shall not touch the blade’s cutting edge zone. After this test, the tip
of the riving knife shall not have been displaced by more than 3 mm in
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