IEC 62841-4-4:2020
(Main)Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 4-4: Particular requirements for lawn trimmers, lawn edge trimmers, grass trimmers, brush cutters and brush saws
Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 4-4: Particular requirements for lawn trimmers, lawn edge trimmers, grass trimmers, brush cutters and brush saws
IEC 62841-4-4:2020 This document applies to hand-held and walk-behind lawn trimmers and lawn edge trimmers, used by a standing operator for cutting grass, weeds or similar soft vegetation, and grass trimmers, brush cutters and brush saws used by a standing operator for cutting grass, weeds, brush, bushes, saplings and similar vegetation.
This document does not apply to
– hand-held machines having a mass of 18 kg or greater;
– self-propelled lawn trimmers or lawn edge trimmers;
– scissors type lawn trimmers and lawn edge trimmers;
– machines equipped with metallic cutting accessories consisting of more than one piece, e.g. pivoting chains or flail blades;
– edgers with rigid and/or metallic cutting devices.
Annex EE provides an informative summary of characteristics for lawn trimmers, lawn edge trimmers, grass trimmers, brush cutters and brush saws.
Brush cutters and brush saws covered by this document are designed only to be operated with the machine to the right of the operator.
Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses - Sécurité - Partie 4-4: Exigences particulières pour les taille-gazon, les coupe-bordures, les coupe-herbes, les débroussailleuses et les débroussailleuses à lame de scie
IEC 62841-4-4:2020 Le présent document s’applique aux taille-gazon et coupe-bordures actionnés par un opérateur debout pour couper l’herbe, les mauvaises herbes ou une végétation tendre similaire, et aux coupe-herbes, débroussailleuses et débroussailleuses à lame de scie utilisés par un opérateur debout pour couper l’herbe, les mauvaises herbes, les broussailles, les buissons, les jeunes arbres et la végétation similaire.
Le présent document ne s’applique pas
– aux machines portatives d’une masse supérieure ou égale à 18 kg;
– aux taille-gazon ou coupe-bordures autopropulsés;
– aux taille-gazon ou coupe-bordures de type ciseaux;
– aux machines équipées d’accessoires de coupe métalliques composés de plusieurs éléments (chaînes pivotantes ou lames de fléau, par exemple);
– aux coupe-bordures à dispositif de coupe rigide et/ou métallique.
L’Annexe EE donne un récapitulatif informatif des caractéristiques des taille-gazon, des coupe-bordures, des coupe-herbes, des débroussailleuses et des débroussailleuses à lame de scie.
Les débroussailleuses et débroussailleuses à lame de scie couvertes par le présent document sont uniquement conçues pour être utilisées à la droite de l’opérateur.
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IEC 62841-4-4 ®
Edition 1.1 2024-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 4-4: Particular requirements for lawn trimmers, lawn edge trimmers, grass
trimmers, brush cutters and brush saws
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 62841-4-4 ®
Edition 1.1 2024-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 4-4: Particular requirements for lawn trimmers, lawn edge trimmers, grass
trimmers, brush cutters and brush saws
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.140.20 ISBN 978-2-8322-9919-7
REDLINE VERSION – 2 – IEC 62841-4-4:2020+AMD1:2024 CSV
© IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 General requirements . 18
5 General conditions for the tests . 18
6 Radiation, toxicity and similar hazards . 18
7 Classification . 18
8 Marking and instructions . 19
9 Protection against access to live parts . 26
10 Starting . 26
11 Input and current . 26
12 Heating . 27
13 Resistance to heat and fire . 28
14 Moisture resistance . 28
15 Resistance to rusting . 29
16 Overload protection of transformers and associated circuits . 29
17 Endurance . 29
18 Abnormal operation . 30
19 Mechanical hazards . 32
20 Mechanical strength . 46
21 Construction . 54
22 Internal wiring . 64
23 Components . 64
24 Supply connection and external flexible cords . 65
25 Terminals for external conductors . 67
26 Provision for earthing . 67
27 Screws and connections . 67
28 Creepage distances, clearances and distances through insulation . 67
Annexes . 72
Annex I (informative) Measurement of noise and vibration emissions . 72
Annex K (normative) Battery tools and battery packs . 81
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources . 95
Annex AA (normative) Safety signs which may be used on machines . 100
Annex BB (normative) Thrown objects test for grass trimmers, brush cutters and brush
saws . 111
Annex CC (normative) Impact test for brush cutter and brush saw cutting accessories
and grass trimmer cutting means . 115
Annex DD (informative) Example of a material and construction fulfilling the
requirements for an artificial surface . 116
© IEC 2024
Annex EE (informative) Summary of characteristics for lawn trimmers, lawn edge
trimmers, grass trimmers, brush cutters and brush saws . 118
Bibliography . 120
Figure 101 – Example of a brush cutter . 12
Figure 102 – Example of a brush saw . 13
Figure 103 – Examples of grass trimmers . 14
Figure 104 – Example of a lawn edge trimmer . 15
Figure 105 – Example of a lawn trimmer . 16
Figure 106 – Example of a walk-behind trimmer . 17
Figure 107 – Minimum guard coverage, lawn trimmer (see 19.101.1) . 34
Figure 108 – Cross-sectional view of lawn edge trimmer cutting means guard . 36
Figure 109 – Shaft angle measurement . 37
Figure 110 – Lawn edge trimmer guarding when θ < 45° . 38
Figure 111 – Lawn edge trimmer guarding when θ ≥ 45° . 39
Figure 112 – Measurement of handle gripping length . 41
Figure 113 – Measurement of distance between handles for grass trimmers, brush
cutters and brush saws . 42
Figure 114 – Examples of brush cutters and brush saws with different handle and
barrier configurations: Measurement of distance to cutting accessory . 44
Figure 115 – Impact test apparatus for handle insulation . 49
Figure 116 – Cutting means guard drop test . 50
Figure 117 – Cutting head strength test . 51
Figure 118 – Cutting accessory guard test . 53
Figure 122 – Application of steel rod when rotated around the handle . 57
Figure 123 – Application of steel rod when applied in the direction perpendicular to the
handle axis . 57
Figure 119 – Example of an operator presence sensor. 58
Figure 120 – Lawn trimmer and lawn edge trimmer cutting means measurement . 60
Figure 121 – Test assembly for accessibility of attachment plug blades . 66
Figure I.101 – Microphone positions on the hemisphere (see Table I.101) . 72
Figure I.102 – Examples of positions of transducers (hand-held machines) .
Figure I.103 – Examples of positions of transducers (walk-behind machines) . 79
Figure AA.1 – Optional safety sign illustrating – "Wear eye and ear protection" . 100
Figure AA.2 – Optional safety sign illustrating – "Wear eye and head protection" . 100
Figure AA.3 – Optional safety sign illustrating – "Wear eye, ear and head protection" . 101
Figure AA.4 – Safety signs illustrating – "Wear eye protection" . 102
Figure AA.5 – Safety sign illustrating – "Wear ear protection" . 103
Figure AA.6 – Safety sign illustrating – "Do not expose to rain" . 103
Figure AA.7 – Safety signs illustrating – "WARNING – Keep bystanders away" . 104
Figure AA.8 – Safety signs illustrating – "WARNING – The distance between the
machine and bystanders shall be at least 15 m (50 ft)" .
Figure AA.9 – Safety sign illustrating – "WARNING – Beware of thrown objects" . 105
Figure AA.10 – Safety sign illustrating – "Wear head protection where there is a risk of
falling objects " . 106
REDLINE VERSION – 4 – IEC 62841-4-4:2020+AMD1:2024 CSV
© IEC 2024
Figure AA.11 – Safety sign illustrating – "Wear hand protection" . 106
Figure AA.12 – Safety sign illustrating – "Wear slip-resistant footwear" . 106
Figure AA.13 – Safety signs illustrating – "WARNING – Beware of blade thrust" . 107
Figure AA.14 – Alternative safety signs illustrating – "WARNING – Beware of blade
thrust" . 108
Figure AA.15 – Safety sign illustrating – "Do not use metal blades" . 108
Figure AA.16 – Safety sign illustrating – "WARNING – Remove plug from the mains
immediately if the power cord or cable is damaged or cut" . 109
Figure AA.17 – Safety sign illustrating – "WARNING – Disconnect battery before
maintenance" .
...
IEC 62841-4-4 ®
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 4-4: Particular requirements for lawn trimmers, lawn edge trimmers, grass
trimmers, brush cutters and brush saws
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 4-4: Exigences particulières pour les taille-gazon, les coupe-bordures,
les coupe-herbes, les débroussailleuses et les débroussailleuses à lame de scie
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International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
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IEC 62841-4-4 ®
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 4-4: Particular requirements for lawn trimmers, lawn edge trimmers, grass
trimmers, brush cutters and brush saws
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 4-4: Exigences particulières pour les taille-gazon, les coupe-bordures,
les coupe-herbes, les débroussailleuses et les débroussailleuses à lame de scie
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-8897-9
– 2 – IEC 62841-4-4:2020 © IEC 2020
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General requirements . 17
5 General conditions for the tests . 17
6 Radiation, toxicity and similar hazards . 17
7 Classification . 17
8 Marking and instructions . 18
9 Protection against access to live parts . 25
10 Starting . 25
11 Input and current . 25
12 Heating . 26
13 Resistance to heat and fire . 26
14 Moisture resistance . 27
15 Resistance to rusting . 27
16 Overload protection of transformers and associated circuits . 27
17 Endurance . 28
18 Abnormal operation . 28
19 Mechanical hazards . 31
20 Mechanical strength . 45
21 Construction . 53
22 Internal wiring . 60
23 Components . 61
24 Supply connection and external flexible cords . 62
25 Terminals for external conductors . 63
26 Provision for earthing . 64
27 Screws and connections . 64
28 Creepage distances, clearances and distances through insulation . 64
Annexes . 69
Annex I (informative) Measurement of noise and vibration emissions . 69
Annex K (normative) Battery tools and battery packs . 78
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources . 91
Annex AA (normative) Safety signs which may be used on machines . 96
Annex BB (normative) Thrown objects test for grass trimmers, brush cutters and brush
saws . 105
Annex CC (normative) Impact test for brush cutter and brush saw cutting accessories
and grass trimmer cutting means . 109
Annex DD (informative) Example of a material and construction fulfilling the
requirements for an artificial surface . 110
Annex EE (informative) Summary of characteristics for lawn trimmers, lawn edge
trimmers, grass trimmers, brush cutters and brush saws . 112
Bibliography . 114
Figure 101 – Example of a brush cutter . 11
Figure 102 – Example of a brush saw . 12
Figure 103 – Examples of grass trimmers . 13
Figure 104 – Example of a lawn edge trimmer . 14
Figure 105 – Example of a lawn trimmer . 15
Figure 106 – Example of a walk-behind trimmer . 16
Figure 107 – Minimum guard coverage, lawn trimmer (see 19.101.1) . 33
Figure 108 – Cross-sectional view of lawn edge trimmer cutting means guard . 35
Figure 109 – Shaft angle measurement . 36
Figure 110 – Lawn edge trimmer guarding when θ < 45° . 37
Figure 111 – Lawn edge trimmer guarding when θ ≥ 45° . 38
Figure 112 – Measurement of handle gripping length . 40
Figure 113 – Measurement of distance between handles for grass trimmers, brush
cutters and brush saws . 41
Figure 114 – Examples of brush cutters and brush saws with different handle and
barrier configurations: Measurement of distance to cutting accessory . 43
Figure 115 – Impact test apparatus for handle insulation . 48
Figure 116 – Cutting means guard drop test . 49
Figure 117 – Cutting head strength test . 50
Figure 118 – Cutting accessory guard test . 52
Figure 119 – Example of an operator presence sensor. 55
Figure 120 – Lawn trimmer and lawn edge trimmer cutting means measurement . 57
Figure 121 – Test assembly for accessibility of att
...
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