Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 4-7: Particular requirements for pedestrian controlled walk-behind lawn scarifiers and aerators

IEC 62841-4-7:2022 clause 1 of IEC 62841-1:2014, is applicable, except as follows: Addition: This document applies to pedestrian controlled walk-behind lawn scarifiers and lawn aerators which are designed for regenerating lawns by combing out materials such as grass, thatch and moss or cutting vertically into the lawn face using  metallic tines; and/or rigid non-metallic tines  which rotate about a horizontal axis. This document does not apply to  pedestrian controlled walk-behind lawnmowers; towed/semi-mounted lawn scarifiers and lawn aerators; ride-on machines; non-powered lawn scarifiers and lawn aerators; combustion engine powered lawn scarifiers and lawn aerators; plug aerators (corers); hybrid and fuel cell powered machines and associated charging systems; and garden tractors or their attachments.

Elektrische motorbetriebene handgeführte Werkzeuge, transportable Werkzeuge und Rasen- und Gartenmaschinen - Sicherheit - Teil 4-7: Besondere Anforderungen für personengeführte Rasenvertikutierer und Rasenbelüfter

Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses - Sécurité - Partie 4-7: Exigences particulières pour les scarificateurs à gazon et les aérateurs de gazon à conducteur à pied

IEC 62841-4-7:2022, La clause 1 de la IEC 62841-1:2014 est applicable, sauf dans les cas suivants : Addition: Le présent document s’applique aux scarificateurs et aux aérateurs de pelouse contrôlés par les piétons qui sont conçus pour régénérer les pelouses en peignant des matériaux tels que l’herbe, le chaume et la mousse ou en coupant verticalement dans la taille de la pelouse à l’aide de  tiges métalliques; et/ou tiges rigides non métalliques qui tournent autour d’un axe horizontal. Le présent document ne s’applique pas aux tondeuses à gazon à marche contrôlées par les piétons; scarificateurs de pelouse et aérateurs de pelouse remorqués/semi-montés; machines autoportées; scarificateurs de pelouse et aérateurs de pelouse non motorisés; scarificateurs de pelouse et aérateurs de pelouse alimentés par moteur à combustion; aérateurs de bouchon (corers); les machines hybrides et à pile à combustible et les systèmes de charge associés; et tracteurs de jardin ou leurs accessoires.

Elektromotorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost - 4-7. del: Posebne zahteve za ročno upravljane rahljalnike in prezračevalnike travne ruše

Uporablja se 1. točka standarda IEC 62841-1:2014, razen kot sledi: Dodatek: Ta dokument se uporablja za ročno upravljane rahljalnike in prezračevalnike travne ruše, ki so zasnovani za obnavljanje trate z izčesavanjem materialov, kot so trava, slama in mah, ali navpičnim rezanjem v površino trate z uporabo: – kovinskih zobcev; in/ali – togih nekovinskih zobcev, ki se vrtijo okoli vodoravne osi. Ta dokument se ne uporablja za: – ročno upravljane kosilnice; – vlečene/polpriklopne rahljalnike in prezračevalnike travne ruše; – stroje s sedežem; – nenapajane rahljalnike in prezračevalnike travne ruše; – motorne rahljalnike in prezračevalnike travne ruše; – električne prezračevalnike (naprave za čiščenje trate); – hibridne stroje in stroje z gorivnimi celicami ter povezane sisteme za polnjenje; in – vrtne traktorje ali njihove priključke. OPOMBA 101: Ročno upravljane kosilnice so zajete v standardu IEC 62841-4-3.

General Information

Status
Published
Publication Date
29-Sep-2022
Current Stage
6060 - Document made available - Publishing
Start Date
30-Sep-2022
Completion Date
30-Sep-2022

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SLOVENSKI STANDARD
SIST EN IEC 62841-4-7:2022
01-november-2022

Elektromotorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost - 4-

7. del: Posebne zahteve za ročno upravljane rahljalnike in prezračevalnike travne

ruše
Electric motor-operated hand-held tools, transportable tools and lawn and garden

machinery - Safety - Part 4-7: Particular requirements for pedestrian controlled walk-

behind lawn scarifiers and aerators
Elektrische motorbetriebene handgeführte Werkzeuge, transportable Werkzeuge und
Rasen- und Gartenmaschinen - Sicherheit - Teil 4-7: Besondere Anforderungen für
personengeführte Rasenvertikutierer und Rasenbelüfter

Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses -

Sécurité - Partie 4-7: Exigences particulières pour les scarificateurs à gazon et les

aérateurs de gazon à conducteur à pied
Ta slovenski standard je istoveten z: EN IEC 62841-4-7:2022
ICS:
25.140.20 Električna orodja Electric tools
65.060.70 Vrtnarska oprema Horticultural equipment
SIST EN IEC 62841-4-7:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 62841-4-7:2022
---------------------- Page: 2 ----------------------
SIST EN IEC 62841-4-7:2022
EUROPEAN STANDARD EN IEC 62841-4-7
NORME EUROPÉENNE
EUROPÄISCHE NORM September 2022
ICS 25.140.30
English Version
Electric motor-operated hand-held tools, transportable tools and
lawn and garden machinery - Safety - Part 4-7: Particular
requirements for pedestrian controlled walk-behind lawn
scarifiers and aerators
(IEC 62841-4-7:2022)

Outils électroportatifs à moteur, outils portables et machines Elektrische motorbetriebene handgeführte Werkzeuge,

pour jardins et pelouses - Sécurité - Partie 4-7: Exigences transportable Werkzeuge und Rasen- und

particulières pour les scarificateurs à gazon et les aérateurs Gartenmaschinen - Sicherheit - Teil 4-7: Besondere

de gazon à conducteur à pied Anforderungen für personengeführte Rasenvertikutierer und

(IEC 62841-4-7:2022) Rasenbelüfter
(IEC 62841-4-7:2022)

This European Standard was approved by CENELEC on 2022-08-24. 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 CEN-CENELEC

Management Centre 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 CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 62841-4-7:2022 E
---------------------- Page: 3 ----------------------
SIST EN IEC 62841-4-7:2022
EN IEC 62841-4-7:2022 (E)
European foreword

The text of document 116/589/FDIS, future edition 1 of IEC 62841-4-7, prepared by IEC/TC 116

"Safety of motor-operated electric tools" was submitted to the IEC-CENELEC parallel vote and

approved by CENELEC as EN IEC 62841-4-7:2022.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2023-08-08

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2026-08-08

document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

This document has been prepared under a Standardization Request given to CENELEC by the

European Commission and the European Free Trade Association, and supports essential

requirements of EU Directive(s) / Regulation(s).

For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZZ, which is an

integral part of EN IEC 62841-4-7:2022/A11:2022.

Any feedback and questions on this document should be directed to the users’ national committee. A

complete listing of these bodies can be found on the CENELEC website.
Endorsement notice

The text of the International Standard IEC 62841-4-7:2022 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following note has to be added for the standard indicated:

IEC 62841-4-3 NOTE Harmonized as EN IEC 62841-4-3
---------------------- Page: 4 ----------------------
SIST EN IEC 62841-4-7:2022
IEC 62841-4-7
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 4-7: Particular requirements for pedestrian controlled walk-behind lawn
scarifiers and aerators
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 4-7: Exigences particulières pour les scarificateurs à gazon et les
aérateurs de gazon à conducteur à pied
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.30 ISBN 978-2-8322-3961-2

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 5 ----------------------
SIST EN IEC 62841-4-7:2022
– 2 – IEC 62841-4-7:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms and definitions ...................................................................................................... 9

4 General requirements .................................................................................................... 12

5 General conditions for the tests ..................................................................................... 12

6 Radiation, toxicity and similar hazards ........................................................................... 12

7 Classification ................................................................................................................. 12

8 Marking and instructions ................................................................................................ 13

9 Protection against access to live parts ........................................................................... 16

10 Starting ......................................................................................................................... 16

11 Input and current ........................................................................................................... 17

12 Heating .......................................................................................................................... 17

13 Resistance to heat and fire ............................................................................................ 17

14 Moisture resistance ....................................................................................................... 17

15 Resistance to rusting ..................................................................................................... 18

16 Overload protection of transformers and associated circuits .......................................... 19

17 Endurance ..................................................................................................................... 19

18 Abnormal operation ....................................................................................................... 19

19 Mechanical hazards ....................................................................................................... 20

20 Mechanical strength ...................................................................................................... 33

21 Construction .................................................................................................................. 34

22 Internal wiring ................................................................................................................ 38

23 Components .................................................................................................................. 38

24 Supply connection and external flexible cords ............................................................... 40

25 Terminals for external conductors .................................................................................. 42

26 Provision for earthing .................................................................................................... 42

27 Screws and connections ................................................................................................ 42

28 Creepage distances, clearances and distances through insulation ................................. 42

Annexes ............................................................................................................................... 47

Annex I (informative) Measurement of noise and vibration emissions ................................... 47

Annex K (normative) Battery tools and battery packs ........................................................... 56

Annex L (normative) Battery tools and battery packs provided with mains connection

or non-isolated sources ......................................................................................................... 71

Annex AA (normative) Product safety labels ........................................................................ 75

Annex BB (normative) Test surface ...................................................................................... 80

Annex CC (normative) Lawn scarifier and lawn aerator foot protection test .......................... 82

Annex DD (normative) Lawn scarifier and lawn aerator tines stopping time test ................... 85

Annex EE (informative) Example of a material and construction for fulfilling the

requirements for an artificial surface ..................................................................................... 87

Bibliography .......................................................................................................................... 89

---------------------- Page: 6 ----------------------
SIST EN IEC 62841-4-7:2022
IEC 62841-4-7:2022 © IEC 2022 – 3 –

Figure 101 – Example of a lawn scarifier or a lawn aerator ................................................... 11

Figure 102 – Operator control zones ..................................................................................... 23

Figure 103 – Safety distances – single-axle machines .......................................................... 25

Figure 104 – Handle distance – machines with more than one axle ....................................... 26

Figure 105 – Guarding of lawn scarifier and lawn aerator tines, general ................................ 27

Figure 106 – Guarding of lawn scarifier and lawn aerator tines, side coverage ...................... 28

Figure 107 – Guarding of lawn scarifier and lawn aerator tines, rear discharge ..................... 29

Figure 108 – Guarding of lawn scarifier and lawn aerator tines, front discharge .................... 30

Figure 109 – Thrown object test rig for rear discharge lawn scarifiers and lawn aerators ...... 32

Figure 110 – Strength of tines assembly ............................................................................... 34

Figure 111 – Impact test fixture for handle insulation ............................................................ 36

Figure 112 – Test assembly for accessibility of attachment plug blades ................................ 41

Figure I.101 – Microphone positions on the hemisphere (see Table I.101) ............................ 47

Figure I.102 – Examples of positions of transducers for lawn scarifiers and lawn

aerators ................................................................................................................................ 54

Figure K.301 – Examples of separable battery pack connection points and direction of

applied force ......................................................................................................................... 65

Figure AA.1 – Product safety labels illustrating – "WARNING – Beware of thrown

objects – keep bystanders away" .......................................................................................... 75

Figure AA.2 – Product safety label illustrating – "WARNING – Keep hands and feet

away from the tines" ............................................................................................................. 76

Figure AA.3 – Product safety labels illustrating – "WARNING – Remove plug from

mains before maintenance or if cord is damaged" ................................................................. 76

Figure AA.4 – Product safety label illustrating – "WARNING – Keep the supply cord

away from the tines" ............................................................................................................. 77

Figure AA.5 – Product safety labels illustrating – "WARNING – Disconnect battery

before maintenance" ............................................................................................................. 77

Figure AA.6 – Product safety labels illustrating – "WARNING – Remove the disabling

device before maintenance" .................................................................................................. 78

Figure AA.7 – Product safety labels illustrating – "WARNING – Activate the disabling

device before maintenance" .................................................................................................. 79

Figure BB.1 – Test surface detail .......................................................................................... 80

Figure BB.2 – Example of test surface, nail plan ................................................................... 81

Figure CC.1 – Foot probe ..................................................................................................... 82

Figure CC.2 – Area to be probed for lawn scarifiers and lawn aerators ................................. 84

Figure EE.1 – Sketch of the measurement surface covered with an artificial surface ............. 88

Table 4 – Required performance levels ................................................................................. 20

Table 9 – Pull and torque value ............................................................................................ 42

Table 12 – Minimum creepage distances and clearances ...................................................... 44

Table I.101 – Co-ordinates of microphone positions .............................................................. 50

Table I.102 – Values of the constant a .................................................................................. 50

Table I.103 – Absorption coefficients .................................................................................... 50

Table 4 – Required performance levels ................................................................................. 61

Table K.301 – Pull and torque value ..................................................................................... 67

---------------------- Page: 7 ----------------------
SIST EN IEC 62841-4-7:2022
– 4 – IEC 62841-4-7:2022 © IEC 2022
Table K.1 – Minimum creepage distances and clearances between parts of different

potential ................................................................................................................................ 69

Table K.2 – Minimum total sum of creepage distances and clearances to accessible

surfaces ................................................................................................................................ 70

---------------------- Page: 8 ----------------------
SIST EN IEC 62841-4-7:2022
IEC 62841-4-7:2022 © IEC 2022 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS,
TRANSPORTABLE TOOLS AND LAWN AND GARDEN
MACHINERY – SAFETY –
Part 4-7: Particular requirements for pedestrian controlled
walk-behind lawn scarifiers and aerators
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

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.

IEC 62841-4-7 has been prepared by IEC technical committee 116: Safety of motor-operated

electric tools. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
116/589/FDIS 116/621/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.
---------------------- Page: 9 ----------------------
SIST EN IEC 62841-4-7:2022
– 6 – IEC 62841-4-7:2022 © IEC 2022

This document is to be used in conjunction with the first edition of IEC 62841-1 (2014).

This document supplements or modifies the corresponding clauses in IEC 62841-1, so as to

convert it into the IEC Standard: Particular requirements for pedestrian controlled walk-behind

lawn scarifiers and aerators.

Where a particular subclause of IEC 62841-1 is not mentioned in this document, that subclause

applies as far as reasonable. Where this document states "addition", "modification" or

"replacement", the relevant text in IEC 62841-1 is to be adapted accordingly.
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
The terms defined in Clause 3 are printed in bold typeface.

Subclauses, notes, tables and figures which are additional to those in IEC 62841-1 are

numbered starting from 101.

Subclauses, notes, tables and figures in Annex K and Annex L which are additional to those in

the main body of this document are numbered starting from 301.

A list of all parts in the IEC 62841 series, published under the general title Electric motor-

operated hand-held tools, transportable tools and lawn and garden machinery – Safety, can be

found on the IEC website.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under webstore.iec.ch in the data related to the

specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing

organizations may need a transitional period following publication of a new, amended or revised IEC publication in

which to make products in accordance with the new requirements and to equip themselves for conducting new or

revised tests.

It is the recommendation of the committee that the content of this publication be adopted for implementation nationally

not earlier than 36 months from the date of publication.
---------------------- Page: 10 ----------------------
SIST EN IEC 62841-4-7:2022
IEC 62841-4-7:2022 © IEC 2022 – 7 –
INTRODUCTION

The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed

that compliance with this document may involve the use of a patent. IEC takes no position

concerning the evidence, validity, and scope of this patent right.

The holder of this patent right has assured IEC that s/he is willing to negotiate licences under

reasonable and non-discriminatory terms and conditions with applicants throughout the world.

In this respect, the statement of the holder of this patent right is registered with IEC. Information

may be obtained from the patent database available at http://patents.iec.ch.

Attention is drawn to the possibility that some of the elements of this document may be the

subject of patent rights other than those in the patent database. IEC shall not be held

responsible for identifying any or all such patent rights.
---------------------- Page: 11 ----------------------
SIST EN IEC 62841-4-7:2022
– 8 – IEC 62841-4-7:2022 © IEC 2022
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS,
TRANSPORTABLE TOOLS AND LAWN AND GARDEN
MACHINERY – SAFETY –
Part 4-7: Particular requirements for pedestrian controlled
walk-behind lawn scarifiers and aerators
1 Scope
IEC 62841-1:2014, Clause 1 is applicable, except as follows:
Addition:

This document applies to pedestrian controlled walk-behind lawn scarifiers and lawn aerators

which are designed for regenerating lawns by combing out materials such as grass, thatch and

moss or cutting vertically into the lawn face using
– metallic tines; and/or
– rigid non-metallic tines
which rotate about a horizontal axis.
This document does not apply to
– pedestrian controlled walk-behind lawnmowers;
– towed/semi-mounted lawn scarifiers and lawn aerators;
– ride-on machines;
– non-powered lawn scarifiers and lawn aerators;
– combustion engine powered lawn scarifiers and lawn aerators;
– plug aerators (corers);
– hybrid and fuel cell powered machines and associated charging systems; and
– garden tractors or their attachments.

NOTE 101 Pedestrian controlled walk-behind lawnmowers are covered by IEC 62841-4-3.

2 Normative references
IEC 62841-1:2014, Clause 2 is applicable, except as follows:
Addition:

IEC 60664-3:2016, Insulation coordination for equipment within low-voltage systems – Part 3:

Use of coating, potting or moulding for protection against pollution

IEC 60664-4:2005, Insulation coordination for equipment within low-voltage systems – Part 4:

Consideration of high-frequency voltage stress

IEC 61058-2-6:2018, Switches for appliances – Part 2-6: Particular requirements for switches

used in electric motor-operated hand-held tools, transportable tools and lawn and garden

machinery
---------------------- Page: 12 ----------------------
SIST EN IEC 62841-4-7:2022
IEC 62841-4-7:2022 © IEC 2022 – 9 –
IEC 61672-1:2013, Electroacoustics – Sound level meters – Part 1: Specifications

IEC 62841-1:2014, Electric motor-operated hand-held tools, transportable tools and lawn and

garden machinery – Safety – Part 1: General requirements

ISO 354:2003, Acoustics – Measurement of sound absorption in a reverberation room

ISO 2758:2014, Paper – Determination of bursting strength

ISO 13857:2019, Safety of machinery – Safety distances to prevent hazard zones being

reached by upper and lower limbs
Replacement:
IEC 61058-1:2016, Switches for appliances – Part 1: General requirements

ISO 3744:2010, Acoustics – Determination of sound power levels and sound energy levels of

noise sources using sound pressure – Engineering methods for an essentially free field over a

reflecting plane

ISO 11201:2010, Acoustics – Noise emitted by machinery and equipment – Determination of

emission sound pressure levels at a work station and at other specified positions in an

essentially free field over a reflecting plane with negligible environmental corrections

3 Terms and definitions
IEC 62841-1:2014, Clause 3 is applicable, except as follows:
Addition:
3.101
catcher

part or combination of parts, intended to be used with the lawn scarifier or lawn aerator, which

provides a means for collecting material such as grass, thatch, moss or other debris

3.102
cutting width

total width of scarification/aeration measured across the tines at 90° to the direction of travel

3.103
discharge chute

extension of the tines enclosure from the discharge opening, generally used to control the

discharge of material from the tines
3.104
discharge opening

gap or opening in the tines enclosure through which grass, thatch, moss and other debris may

be discharged
3.104.1
front discharge

discharge opening for throwing out grass, thatch and moss so that they will be collected in a

catcher which is located in front of the tines
---------------------- Page: 13 ----------------------
SIST EN IEC 62841-4-7:2022
– 10 – IEC 62841-4-7:2022 © IEC 2022
3.104.2
rear discharge

discharge opening for throwing out grass, thatch and moss so that they will be collected in a

catcher which is located behind the tines
3.105
lawn aerator

machine equipped with a tines assembly which uses the ground to determine the depth of cut,

designed for penetrating the lawn surface
Note 101 to entry: See Figure 101.

Note 102 to entry: Lawn aerators that are designed to only make shallow cuts or slices in the soil are also known

as verticutters.
3.106
lawn scarifier
machine equipped with a tines assembly designed to scra
...

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