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

Status
Published
Publication Date
14-Oct-2007
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-Oct-2007
Due Date
10-Dec-2007
Completion Date
15-Oct-2007

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SLOVENSKI STANDARD
SIST EN 60745-2-5:2007
01-november-2007
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SIST EN 60745-2-5:2003
SIST EN 60745-2-5:2003/OprA2:2004

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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
---------------------- Page: 2 ----------------------
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.

---------------------- Page: 3 ----------------------
- 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.
__________
---------------------- Page: 4 ----------------------
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.

---------------------- Page: 5 ----------------------
- 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

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
---------------------- Page: 6 ----------------------
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.

---------------------- Page: 7 ----------------------
- 7 - EN 60745-2-5:2007
Add the following new figure:
Figure Z101 – Positions of transducers for circular saws
---------------------- Page: 8 ----------------------
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.
---------------------- Page: 9 ----------------------
- 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.
_______
---------------------- Page: 10 ----------------------
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

utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including

électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from

microfilms, sans l'accord écrit de l'éditeur. the publisher.

International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland

Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch

CODE PRIX
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МеждународнаяЭлектротехническаяКомиссия
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

---------------------- Page: 12 ----------------------
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

---------------------- Page: 13 ----------------------
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.
---------------------- Page: 15 ----------------------
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
---------------------- Page: 16 ----------------------
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
...

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