SIST EN 62841-4-2:2019/A1:2022
(Amendment)Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 4-2: Particular requirements for hedge trimmers
Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 4-2: Particular requirements for hedge trimmers
No scope available
Elektrische motorbetriebene handgeführte Werkzeuge, transportable Werkzeuge und Rasen- und Gartenmaschinen - Sicherheit - Teil 4-2: Besondere Anforderungen für Heckenscheren
Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses - Sécurité - Partie 4-2: Exigences particulières pour les taille-haies
Električna motorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost - 4-2. del: Posebne zahteve za škarje za živo mejo - Dopolnilo A1
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 62841-4-2:2019/A1:2022
01-september-2022
Električna motorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost
- 4-2. del: Posebne zahteve za škarje za živo mejo - Dopolnilo A1
Electric motor-operated hand-held tools, transportable tools and lawn and garden
machinery - Safety - Part 4-2: Particular requirements for hedge trimmers
Elektrische motorbetriebene handgeführte Werkzeuge, transportable Werkzeuge und
Rasen- und Gartenmaschinen - Sicherheit - Teil 4-2: Besondere Anforderungen für
Heckenscheren
Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses -
Sécurité - Partie 4-2: Exigences particulières pour les taille-haies
Ta slovenski standard je istoveten z: EN 62841-4-2:2019/A1:2022
ICS:
25.140.20 Električna orodja Electric tools
65.060.70 Vrtnarska oprema Horticultural equipment
SIST EN 62841-4-2:2019/A1:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 62841-4-2:2019/A1:2022
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SIST EN 62841-4-2:2019/A1:2022
EUROPEAN STANDARD EN 62841-4-2:2019/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2022
ICS 25.140.20
English Version
Electric motor-operated hand-held tools, transportable tools and
lawn and garden machinery - Safety - Part 4-2: Particular
requirements for hedge trimmers
(IEC 62841-4-2:2017/AMD1:2022)
Outils électroportatifs à moteur, outils portables et machines Elektrische motorbetriebene handgeführte Werkzeuge,
pour jardins et pelouses - Sécurité - Partie 4-2: Exigences transportable Werkzeuge und Rasen- und
particulières pour les taille-haies Gartenmaschinen - Sicherheit - Teil 4-2: Besondere
(IEC 62841-4-2:2017/AMD1:2022) Anforderungen für Heckenscheren
(IEC 62841-4-2:2017/AMD1:2022)
This amendment A1 modifies the European Standard EN 62841-4-2:2019; it was approved by CENELEC on 2022-06-15. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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,
Turkey 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 62841-4-2:2019/A1:2022 E
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SIST EN 62841-4-2:2019/A1:2022
EN 62841-4-2:2019/A1:2022 (E)
European foreword
The text of document 116/578/FDIS, future IEC 62841-4-2/AMD1, 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 62841-4-2:2019/A1:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-05-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-05-30
document have to be withdrawn
EN 62841-4-2:2019/A1:2022 introduces various clarifications and corrections to different clauses, in
particular for the moisture resistance of hedge trimmers. In addition, corrections to the noise test code
are made.
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 62841-4-2:2019/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 62841-4-2:2017/AMD1:2022 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 62841-4-5 NOTE Harmonized as EN IEC 62841-4-5
2
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SIST EN 62841-4-2:2019/A1:2022
IEC 62841-4-2
®
Edition 1.0 2022-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 4-2: Particular requirements for hedge trimmers
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 4-2: Exigences particulières pour les taille-haies
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-0170-1
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
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– 2 – IEC 62841-4-2:2017/AMD1:2022
© IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS,
TRANSPORTABLE TOOLS AND LAWN
AND GARDEN MACHINERY – SAFETY –
Part 4-2: Particular requirements for hedge trimmers
AMENDMENT 1
FOREWORD
1) The Interational 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 document may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 62841-4-2:2017 has been prepared by IEC technical committee 116:
Safety of motor-operated electric tools.
The text of this Amendment is based on the following documents:
Draft Report on voting
116/578/FDIS 116/586/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 Amendment is English.
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© IEC 2022
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.
___________
INTRODUCTION
Add the following new Introduction:
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 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.
1 Scope
Replace the existing text of NOTE 102 with the following new text:
NOTE 102 Scissors type grass shears are covered by IEC 60335-2-94 or IEC 62841-4-5.
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2 Normative references
Add the following new normative references:
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
3 Terms and definitions
Replace the existing text of 3.111 with the following new text:
3.111
maximum speed
highest steady-state cutting device speed attainable under all conditions of normal use,
including no-load, when adjusted in accordance with the manufacturer’s specifications and/or
instructions
Note 101 to entry: The steady-state cutting device speed excludes transients such as overshoot that may occur
before attaining a steady-state condition.
5 General conditions for the tests
Add the following new subclause:
5.103 For machines that do not attain maximum speed under no load conditions, the
manufacturer shall provide samples with special hardware and/or software in order to perform
the required tests.
8 Marking and instructions
8.2 Replace the first three dashes with the following:
– "Wear ear protection", a relevant safety sign of ISO 7010 or the safety sign specified in
Figure AA.7. This marking may be omitted if the measured emission sound pressure level
at the operator’s ear in accordance with Annex I does not exceed 85 dB(A); and
– " DANGER – Keep hands away from blade" or the safety sign specified in Figure AA.1 or
the safety sign specified in Figure AA.2.
Replace the fourth to seventh dashes with the following:
– " WARNING – Do not expose to rain" or the safety sign specified in Figure AA.3.
– " WARNING – Remove plug from the mains immediately if the cable is damaged or cut"
or the safety sign specified in Figure AA.4.
Replace the ninth dash with the following:
– " DANGER – Keep sufficient distance away from electrical power lines" or symbol C.2.30
of ISO 11684;
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© IEC 2022
Add the following new subclause:
8.14.1.1 Addition to item 2) c):
For machines classified at least IPX4, the warning may be replaced as specified below.
c) Do not operate the machine in rain or wet conditions. Water entering the machine may
increase the risk of electric shock or malfunction that could result in personal injury.
Replace the existing text of 8.14.1.101 with the following new text:
8.14.1.101 Safety instructions for hedge trimmers
For Category 1 hedge trimmers that can be converted to a grass shear, the term "hedge
trimmer" may be replaced by alternate wording (e.g. "grass shear/hedge trimmer" or "grass
shear/shrub shear"). For this case, the verbatim warnings below need not be repeated for the
two configurations.
Hedge trimmer safety warnings:
a) Do not use the hedge trimmer in bad weather conditions, especially when there is a
risk of lightning. This decreases the risk of being struck by lightning.
b) Keep all power cords and cables away from cutting area. Power cords or cables may be
hidden in hedges or bushes and can be accidentally cut by the blade.
c) Wear ear protection. Adequate protective equipment will reduce the risk of hearing loss.
NOTE 101 This warning can be omitted if the measured emission sound pressure level at the operator’s ear in
accordance with Annex I does not exceed 85 dB(A).
d) Hold the hedge trimmer by insulated gripping surfaces only, because the blade may
contact hidden wiring or its own cord. Blades contacting a "live" wire may make exposed
metal parts of the hedge trimmer "live" and could give the operator an electric shock.
e) Keep all parts of the body away from the blade. Do not remove cut material or hold
material to be cut when blades are moving. Blades continue to move after the switch is
turned off. A moment of inattention while operating the hedge trimmer may result in serious
personal injury.
f) When clearing jammed material or servicing the hedge trimmer, make sure all power
switches are off and the power cord is disconnected. Unexpected actuation of the hedge
trimmer while clearing jammed material or servicing may result in serious personal injury.
g) Carry the hedge trimmer by the handle with the blade stopped and taking care not to
operate any power switch. Proper carrying of the hedge trimmer will decrease the risk of
inadvertent starting and resultant personal injury from the blades.
h) When transporting or storing the hedge trimmer, always use the blade cover. Proper
handling of the hedge trimmer will decrease the risk of personal injury from the blades.
Replace the existing text of 8.14.1.102 with the following new text:
8.14.1.102 Additional safety instructions for extended-reach hedge trimmers
Extended-reach hedge trimmer safety warnings:
a) Always use head protection when operating the extended-reach hedge trimmer
overhead. Falling debris can result in serious personal injury.
NOTE 101 Alternate wording for "extended-reach" is possible, e.g. "pole" or "long reach".
b) Always use two hands when operating the extended-reach hedge trimmer. Hold the
extended-reach hedge trimmer with both hands to avoid loss of control.
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c) To reduce the risk of electrocution, never use the extended-reach hedge trimmer near
any electrical power lines. Contact with or use near power lines may cause serious injury
or electric shock resulting in death.
8.14.2 Add the following new text after the existing text of 8.14.2 c):
Replacement of the NOTE:
NOTE In Europe (EN IEC 62841-4-2), the following additional requirements apply:
Emissions
1) The noise emission, measured in accordance with Clause I.2, as follows:
– A-weighted emission sound pressure level L and its uncertainty K , where L exceeds 70 dB(A).
pA pA pA
Where L does not exceed 70 dB(A), this fact shall be indicated;
pA
– the A-weighted measured and guaranteed sound power levels L ;
WA
2) Recommendation for the operator to wear hearing protection.
3) The vibration total value and its uncertainty measured in accordance with Clause I.3. When the vibration
2 2
total value does not exceed 2,5 m/s , this shall be stated. When the vibration total value exceeds 2,5 m/s ,
its value shall be given in the instructions.
4) The following information:
– that the declared vibration total value(s) and the declared noise emission value(s) has been measured
in accordance with a standard test method and may be used for comparing one machine with another;
– that the declared vibration total value(s) and the declared noise emission value(s) may also be used in
a preliminary assessment of exposure.
5) A warning:
– that the vibration during actual use of the machine can differ from the declared total value depending
on the ways in which the machine is used; and
– of the need to identify safety measures to protect the operator that are based on an estimation of
exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the
times when the machine is switched off and when it is running idle in addition to the trigger time).
14 Moisture resistance
Replace the existing text of 14.2.1 with the following new text:
14.2.1 Replacement:
The machine is not connected to the supply.
The machine is placed in its normal rest position on a perforated turntable. The turntable is then
turned continuously at (1 ± 0,1) r /min during the test.
Detachable parts are removed and subjected, if necessary, to the relevant treatment with the
main part. Movable covers that are non-detachable parts and are not self-restoring are placed
in the most unfavourable position.
NOTE Examples of self-restoring covers include those that are spring loaded or close by gravity.
Replace the existing text of 14.2.2 with the following new text:
14.2.2 Add the following new text:
Replacement of the last paragraph:
Immediately after the appropriate treatment, the machine shall withstand the electric strength
test of Annex D between live parts and accessible parts, the test voltage being 2 500 V. Then
the machine is connected to the supply. It shall not start with the power switch in the "off" position.
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© IEC 2022
Afterwards, inspection shall show that there is no trace of water on insulation which could result
in a reduction of creepage distances between bare conductors of different potential below the
values specified in 28.1. For all instances where creepage distances could be reduced below
the values specified in 28.1, a short circuit is introduced between adjacent conductors. The
machine is then evaluated for
– the risk of fire in accordance with item a) of 18.6.1; and
– the loss of any SCF, unless the machine is rendered into a safe state.
17 Endurance
17.2 Add the following new paragraph:
Care shall be taken to avoid overheating the cutting device by operating continuously and
therefore appropriate interruptions for cooling and lubrication may be introduced.
19 Mechanical hazards
Replace the existing text of 19.1 with the following new text:
19.1 Replacement of the first paragraph:
All power-driven hazardous parts (e.g. gears), other than those moving parts (e.g. cutting
device), barriers and covers which are separately covered by 19.102, 19.103, 19.105 and
19.106, shall be so positioned or enclosed to provide adequate protection. The requirements of
this subclause apply to all operating configurations as described in 8.14.2.
Replace the existing text of the third paragraph of 19.101.1.1 with the following new text:
The handles shall be designed in such a way that each one can be grasped with one hand.
Handles shall be suitably shaped to be grasped securely and have a perimeter P between
63 mm and 170 mm as illustrated in Figure 105 a), 105 b) or 105 c). The perimeter is
determined by a chain measurement with the blade control, if any, fully depressed. The
gripping length of the handle(s) required in Table 101 shall be at least 100 mm.
Replace the existing text of the first paragraph of 19.101.1.2 with the following new text:
On bail or closed handles (U-shaped handles) the gripping length is related to the inner length
of the gripping surface. There shall be a minimum radial clearance of 25 mm around the gripping
length. In addition, for a handle incorporating a blade control, there shall be a minimum radial
clearance of 25 mm around the blade control actuator with the blade control not depressed.
Add, after the first paragraph of 19.101.1.3, the following new paragraph:
In addition, for a handle incorporating a blade control, there shall be a minimum radial
clearance of 25 mm around the blade control actuator with the blade control not depressed.
Replace the existing text of the fourth paragraph of 19.101.2.1 with the following new text:
The handles shall be designed in such a way that each one can be grasped with one hand.
Handles shall be suitably shaped to be grasped securely and have a perimeter P between
63 mm and 170 mm as illustrated in Figure 105 a), 105 b) or 105 c). The perimeter P is
determined by a chain measurement with the blade control, if any, fully depressed. The
gripping length of the front handle and the rear handle shall be at least 100 mm long. In
addition, for a handle incorporating a blade control, there shall be a minimum radial clearance
of 25 mm around the blade control actuator with the blade control not depressed.
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Replace the existing text of the first paragraph of 19.101.2.2 with the following new text:
On bail or closed handles (U-shaped handles), the gripping length is related to the inner length
of the gripping surface. There shall be a minimum radial clearance of 25 mm around the gripping
length. In addition, for a handle incorporating a blade control, there shall be a minimum radial
clearance of 25 mm around the blade control actuator with the blade control not depressed.
Add, after the first paragraph of 19.101.2.3, the following new paragraph:
In addition, for a handle incorporating a blade control, there shall be a minimum radial
clearance of 25 mm around the blade control actuator with the blade control not depressed.
19.101.3.2 Replace the first paragraph with the following:
Any adjustable handle shall have a defined centre position. The handle shall have a locking
detent at the centre position and at any other intended handle adjustment position of operation
as described in 8.14.2. These other operating positions shall not locate the handle further than
95° from the centre position about their axis of rotation. See Figures 106 and 107. The handle
movement, when locked by the detent and subjected to a torque of (2 ± 0,1) Nm, shall be limited
to 5° rotation. The handle shall have a handle release control as required in 19.101.3.3 that
releases the handle from the detent position.
19.102.2.1 Replace the existing text with the following:
The front handle shall be located so that the distance from the nearest cutting edge of the
cutter blade to the furthest side of any handle, except for Category 1, is not less than 120 mm
as shown in Figure 108 a) and Figure 108 b).
For Category 1, the shortest distance between the front of the handle grip and the nearest blade
tooth shall be at least 120 mm (see Figure 111). The distances shall be measured along the
shortest path from the front of the handle grip to the nearest cutting edge of the cutter blade.
For all categories in Table 101, if there is a front hand barrier, then the x and x distances in
1 2
Figure 108 a) and Figure 108 b) shall be measured along the shortest path from the furthest
side of the handle, via the edge of the front hand barrier, to the nearest cutting edge of the
cutter blade. The front hand barrier shall not have any openings with a minor dimension larger
than 10 mm.
Additionally, for category 3a hedge trimmers, the front hand barrier shall have a minimum
shape described by:
– a height y of 90 mm measured perpendicularly from the cutting plane; and
1
– a width y of 50 mm on either side of the centreline of the cutting device.
2
Both the y and y measurements are made with the cutting device in the 0˚ position, if axially
1 2
rotatable. See Figure 109.
Compliance is checked by inspection and by measurement.
19.103.2.4 Hedge trimmer category 4 (see Figure 116)
Add the following new paragraph before the compliance paragraph
Blunt extensions are not required for category 4 hedge trimmers with a blade configuration
where there are only two handles and the front handle is a stick-type handle that is permanently
fixed to the smooth side of a single sided cutting device (see Figure 104 b)).
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© IEC 2022
19.103.3.4 Replace the existing text of the first paragraph with the following new text:
An adjustable cutting device shall be provided with a momentary cutting device release
control to disengage the cutting device from a locked position. A handle in accordance with
8.14.2 b) 108) shall be provided for adjusting the position of the cutting device such that
contact with the cutting device is not required. The requirements of 21.30 shall not apply to
the cutting device adjusting handle.
19.103.3.6 Replace the existing text of the third paragraph with the following new text:
The cutting device release control is actuated in accordance with 8.14.2 b) 108) a total of
2 000 times, engaging all locking detent positions over the full range of travel of the adjustable
cutting device, in both directions.
19.104.2 Replace the existing text of the first paragraph with the following new text:
The hedge trimmer shall be mounted and instrumented in such a manner that the results of
the test are not affected.
20 Mechanical strength
Replace the existing text of the fourth paragraph of 20.3.1 with the following new text:
Each drop shall be conducted on a separate sample, unless a single sample can be subjected
to multiple drops without failure. If a sample has been subjected to multiple drops and fails,
then the drop in the orientation that resulted in the failure is repeated using a new sample. If
the new sample passes the test for the drop in that orientation, then the requirements for the
drop in that orientation are considered to be fulfilled. The test is co
...
SLOVENSKI STANDARD
SIST EN 62841-4-2:2019/oprA1:2021
01-julij-2021
Elektromotorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost - 4-
2. del: Posebne zahteve za škarje za živo mejo - Dopolnilo A1
Electric motor-operated hand-held tools, transportable tools and lawn and garden
machinery - Safety - Part 4-2: Particular requirements for hedge trimmers
Elektrische motorbetriebene handgeführte Werkzeuge, transportable Werkzeuge und
Rasen- und Gartenmaschinen - Sicherheit - Teil 4-2: Besondere Anforderungen für
Heckenscheren
Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses -
Sécurité - Partie 4-2: Exigences particulières pour les taille-haies
Ta slovenski standard je istoveten z: EN 62841-4-2:2019/prA1
ICS:
25.140.20 Električna orodja Electric tools
65.060.70 Vrtnarska oprema Horticultural equipment
SIST EN 62841-4-2:2019/oprA1:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 62841-4-2:2019/oprA1:2021
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SIST EN 62841-4-2:2019/oprA1:2021
116/499/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62841-4-2/AMD1 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-04-30 2021-07-23
SUPERSEDES DOCUMENTS:
116/498/RR
IEC TC 116 : SAFETY OF MOTOR-OPERATED ELECTRIC TOOLS
SECRETARIAT: SECRETARY:
United States of America Mr Joseph Harding
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
TITLE:
Amendment 1 - Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery - Safety - Part 4-2: Particular requirements for hedge trimmers
PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
Copyright © 2021 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.
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1 FOREWORD
2 This amendment has been prepared by IEC technical committee 116: Safety of motor-
3 operated electric tools.
4 The text of this amendment is based on the following documents:
FDIS Report on voting
116/XXX/FDIS 116/XXX/RVD
5
6 Full information on the voting for the approval of this amendment can be found in the report
7 on voting indicated in the above table.
8 The committee has decided that the contents of this amendment and the base publication will
9 remain unchanged until the stability date indicated on the IEC website under
10 "http://webstore.iec.ch" in the data related to the specific publication. At this date, the
11 publication will be
12 • reconfirmed,
13 • withdrawn,
14 • replaced by a revised edition, or
15 • amended.
16 NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
17 organizations may need a transitional period following publication of a new, amended or revised IEC publication in
18 which to make products in accordance with the new requirements and to equip themselves for conducting new or
19 revised tests.
20 It is the recommendation of the committee that the content of this publication be adopted for implementation
21 nationally not earlier than 36 months from the date of publication.
22 _____________
23 Foreword
24 Delete item 9) of the Foreword.
25 Introduction
26 Add the following new Introduction:
27 INTRODUCTION
28 The International Electrotechnical Commission (IEC) draws attention to the fact that it is
29 claimed that compliance with this document may involve the use of patents concerning
30 prevention of inadvertent starting given in subclause 21.18.102.
31 IEC takes no position concerning the evidence, validity and scope of this patent right.
32 The holders of these patent rights have assured the IEC that they are willing to negotiate
33 licences under reasonable and non-discriminatory terms and conditions with applicants
34 throughout the world. In this respect, the statements of the holders of these patent rights are
35 registered with IEC. Information may be obtained from:
36
37 Andreas Stihl AG & Co. KG
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38 Stuttgarter Strasse 80
39 71332 Waiblingen, Germany
40
41 Husqvarna AB
42 SE-561 82 Huskvarna
43 Sweden
44
45 Robert Bosch GmbH
46 Postfach 30 02 20
47 D-70442 Stuttgart, Germany
48
49 Attention is drawn to the possibility that some of the elements of this document may be the
50 subject of patent rights other than those identified above. IEC shall not be held responsible
51 for identifying any or all such patent rights.
52 ISO (www.iso.org/patents) and IEC (http://patents.iec.ch) maintain on-line data bases of
53 patents relevant to their standards. Users are encouraged to consult the data bases for the
54 most up to date information concerning patents.
55 2 Normative references
56 Add the following new normative references:
57 IEC 60664-3, Insulation coordination for equipment within low-voltage systems - Part 3: Use
58 of coating, potting or moulding for protection against pollution
59 IEC 60664-4, Insulation coordination for equipment within low-voltage systems - Part 4:
60 Consideration of high-frequency voltage stress
61 5 General conditions for the tests
62 Add the following new subclause:
63 5.103 For machines that do not attain maximum speed under no load conditions, the
64 manufacturer shall provide samples with special hardware and/or software in order to perform
65 the required tests.
66 8 Marking and instructions
67 Replace the existing text of 8.2 with the following new text:
68 8.2 Addition:
69 Hedge trimmers shall be marked with the following safety information which shall be written
70 in one of the official languages of the country in which the machine is to be sold or marked
71 with the appropriate symbol.
72 For all hedge trimmers:
73 – “Wear ear protection”, a relevant safety sign of ISO 7010 or the safety sign specified in
74 Figure AA.7. This marking may be omitted if the measured emission sound pressure level
75 at the operator’s ear in accordance with Annex I does not exceed 85 dB(A); and
76 – “ DANGER – Keep hands away from blade” or the safety sign specified in Figure AA.1 or
77 the safety sign specified in Figure AA.2.
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78 The DANGER marking or symbol shall be readily visible to the user and shall not be located
79 on the underside of the machine.
80 For all hedge trimmers with a degree of protection of less than IPX4:
81 – “ WARNING – Do not expose to rain” or the safety sign specified in Figure AA.3.
82 For mains supplied machines:
83 – “ WARNING – Remove plug from the mains immediately if the cable is damaged or cut”;
84 or the safety sign specified in Figure AA.4.
85 For all hedge trimmers except for Category 1 in Table 101:
86 – “Wear eye protection” or a relevant safety sign of ISO 7010 or one of the safety signs
87 specified in Figure AA.5.
88 Additionally, for extended-reach hedge trimmers:
89 – “ DANGER – Keep sufficient distance away from electrical power lines” or symbol
90 C.2.30 of ISO 11684.
91 – “Wear head protection” or a relevant safety sign of ISO 7010.
92 A combination of ISO safety signs, such as eye and head protection, is allowed. In addition, a
93 combination of safety signs as specified in Figure AA.6 is allowed.
94 Add the following new subclause:
95 8.14.1.1 Addition for item 2) c):
96 For machines classified at least IPX4, the warning may be replaced as specified below.
97 c) Do not operate the machine in rain or wet conditions. Water entering the machine may
98 increase the risk of electric shock or malfunction that could result in personal injury.
99 Replace the existing text of 8.14.1.101 with the following new text:
100 8.14.1.101 Safety instructions for hedge trimmers
101 For Category 1 hedge trimmers that can be converted to a grass shear, the term “hedge
102 trimmer” may be replaced by alternate wording (e.g. “grass shear/hedge trimmer” or “grass
103 shear/shrub shear”). For this case, the verbatim warnings below need not be repeated for the
104 two configurations.
105 Hedge trimmer safety warnings:
106 a) Do not use the hedge trimmer in bad weather conditions, especially when there is a
107 risk of lightning. This decreases the risk of being struck by lightning.
108 b) Keep all power cords and cables away from cutting area. Power cords or cables may
109 be hidden in hedges or bushes and can be accidentally cut by the blade.
110 c) Wear ear protection. Adequate protective equipment will reduce the risk of hearing loss.
111 NOTE 101 This warning can be omitted if the measured emission sound pressure level at the operator’s ear
112 in accordance with Annex I does not exceed 85 dB(A).
113 d) Hold the hedge trimmer by insulated gripping surfaces only, because the blade may
114 contact hidden wiring or its own cord. Blades contacting a "live" wire may make
115 exposed metal parts of the hedge trimmer "live" and could give the operator an electric
116 shock.
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117 e) Keep all parts of the body away from the blade. Do not remove cut material or hold
118 material to be cut when blades are moving. Blades continue to move after the switch is
119 turned off. A moment of inattention while operating the hedge trimmer may result in
120 serious personal injury.
121 f) When clearing jammed material or servicing the hedge trimmer, make sure all power
122 switches are off and the power cord is disconnected. Unexpected actuation of the
123 hedge trimmer while clearing jammed material or servicing may result in serious personal
124 injury.
125 g) Carry the hedge trimmer by the handle with the blade stopped and taking care not to
126 operate any power switch. Proper carrying of the hedge trimmer will decrease the risk of
127 inadvertent starting and resultant personal injury from the blades.
128 h) When transporting or storing the hedge trimmer, always use the blade cover. Proper
129 handling of the hedge trimmer will decrease the risk of personal injury from the blades.
130 Replace the existing text of 8.14.1.102 with the following new text:
131 8.14.1.102 Additional safety instructions for extended-reach hedge trimmers
132 Extended-reach hedge trimmer safety warnings:
133 a) Always use head protection when operating the extended-reach hedge trimmer
134 overhead. Falling debris can result in serious personal injury.
135 NOTE 101 Alternate wording for "extended-reach" is possible, e.g. “pole” or “long reach”.
136 b) Always use two hands when operating the extended-reach hedge trimmer. Hold the
137 extended-reach hedge trimmer with both hands to avoid loss of control.
138 c) To reduce the risk of electrocution, never use the extended-reach hedge trimmer
139 near any electrical power lines. Contact with or use near power lines may cause serious
140 injury or electric shock resulting in death.
141 14 Moisture resistance
142 Replace the existing text of 14.2.1 with the following new text:
143 14.2.1 Replacement:
144 The machine is not connected to the supply.
145 The machine is placed in its normal rest position on a perforated turntable. The turntable is
146 then turned continuously at (1 ± 0,1) /min during the test.
147
148 Detachable parts are removed and subjected, if necessary, to the relevant treatment with the
149 main part. Movable covers that are non-detachable parts and are not self-restoring are
150 placed in the most unfavourable position.
151 NOTE Examples of self-restoring covers include those that are spring loaded or close by gravity.
152 Replace the existing text of 14.2.2 with the following new text:
153 14.2.2 Addition:
154 Alternatively, extended-reach hedge trimmers may be subjected to the test described in
155 14.2.3 b) or 14.2.4 b) of IEC 60529:2013, as applicable.
156 Replacement of the last paragraph:
157 Immediately after the appropriate treatment, the machine shall withstand the electric strength
158 test of Annex D between live parts and accessible parts, the test voltage being 2 500 V.
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159 Then the machine is connected to the supply. It shall not start with the power switch in the
160 “off” position.
161 Afterwards, inspection shall show that there is no trace of water on insulation which could result
162 in a reduction of creepage distances between bare conductors of different potential below the
163 values specified in 28.1. For all instances where creepage distances could be reduced below
164 the values specified in 28.1, a short circuit is introduced between adjacent conductors
165 simultaneously. The machine is then evaluated for
166 – the risk of fire in accordance with item a) of 18.6.1; and
167 – the loss of any SCF, unless the machine is rendered into a safe state.
168 17 Endurance
169 Replace the existing text of 17.2 with the following new text:
170 17.2 Modification:
171 This subclause of Part 1 is applicable as for hand-held tools.
172 Addition:
173 The machine is operated in its most unfavourable configuration in accordance with
174 8.14.2 b) 108).
175 Care shall be taken to avoid overheating the cutting device by operating continuously and
176 therefore appropriate interruptions for cooling and lubrication may be introduced.
177 19 Mechanical hazards
178 Replace the existing text of 19.1 with the following new text:
179 19.1 Replacement of the first paragraph:
180 All power-driven hazardous parts (e.g. gears), other than those moving parts (e.g. cutting
181 device), barriers and covers which are separately covered by 19.102, 19.103, 19.105 and
182 19.106, shall be so positioned or enclosed to provide adequate protection. The requirements
183 of this subclause apply to all operating configurations as described in 8.14.2.
184 Replace the existing text of the third paragraph of 19.101.1.1 with the following new text:
185 The handles shall be designed in such a way that each one can be grasped with one hand.
186 Handles shall be suitably shaped to be grasped securely and have a perimeter between
187 65 mm and 170 mm as illustrated in Figure 105 a), 105 b) or 105 c). The perimeter is
188 determined by a chain measurement with the blade control, if any, fully depressed. The
189 gripping length of the handle(s) shall be at least 100 mm, except for handle(s) on a Category
190 1 hedge trimmer that do not incorporate a blade control.
191 Replace the existing text of the first paragraph of 19.101.1.2 with the following new text:
192 On bail or closed handles (U-shaped handles) the gripping length is related to the inner length
193 of the gripping surface. There shall be a minimum radial clearance of 25 mm around the
194 gripping length. In addition, for a handle incorporating a blade control, there shall be a
195 minimum radial clearance of 25 mm around the blade control actuator with the blade control
196 not depressed.
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197 Add, after the first paragraph of 19.101.1.3, the following new paragraph:
198 In addition, for a handle incorporating a blade control, there shall be a minimum radial
199 clearance of 25 mm around the blade control actuator with the blade control not depressed.
200 Replace the existing text of the fourth paragraph of 19.101.2.1 with the following new text:
201 The handles shall be designed in such a way that each one can be grasped with one hand.
202 Handles shall be suitably shaped to be grasped securely and have a perimeter P between
203 65 mm and 170 mm as illustrated in Figure 105 a), 105 b) or 105 c). The perimeter P is
204 determined by a chain measurement with the blade control, if any, fully depressed. The
205 gripping length of the front handle and the rear handle shall be at least 100 mm long. In
206 addition, for a handle incorporating a blade control, there shall be a minimum radial
207 clearance of 25 mm around the blade control actuator with the blade control not depressed.
208 Replace the existing text of the first paragraph of 19.101.2.2 with the following new text:
209 On bail or closed handles (U-shaped handles), the gripping length is related to the inner
210 length of the gripping surface. There shall be a minimum radial clearance of 25 mm around
211 the gripping length. In addition, for a handle incorporating a blade control, there shall be a
212 minimum radial clearance of 25 mm around the blade control actuator with the blade control
213 not depressed.
214 Add, after the first paragraph of 19.101.2.3, the following new paragraph:
215 In addition, for a handle incorporating a blade control, there shall be a minimum radial
216 clearance of 25 mm around the blade control actuator with the blade control not depressed.
217 Replace the existing text of 19.101.3.2 with the following new text:
218 19.101.3.2 Any adjustable handle shall have a defined centre position. The handle shall
219 have a locking detent at the centre position and at any other intended handle adjustment
220 position of operation as described in 8.14.2. These other operating positions shall not locate
221 the handle further than 95° from the centre position about their axis of rotation. See
222 Figures 106 and 107. The handle movement, when locked by the detent and subjected to a
223 torque of (2 ± 0,1) Nm, shall be limited to 5° rotation. The handle shall have a handle release
224 control as required in 19.101.3.3 that releases the handle from the detent position.
225 The handle shall automatically lock into each detent position when adjusting the handle,
226 unless the handle release control is operated.
227 Compliance is checked by inspection and by measurement.
228 Replace the existing text of the third paragraph of 19.101.3.6 with the following new text:
229 The handle release control is actuated in accordance with 8.14.2 b) 108) a total of
230 2 000 times, engaging all locking detent positions over the full range of travel of the
231 adjustable handle, in both directions.
232 Replace the existing text of 19.102.2.1 with the following new text:
233 19.102.2.1 The front handle shall be located so that the distance from the nearest cutting
234 edge of the cutter blade to the furthest side of any handle, except for Category 1, is not less
235 than 120 mm as shown in Figure 108 a) and Figure 108 b).
236 For Category 1, the shortest distance between the front of the handle grip and the nearest
237 blade tooth shall be at least 120 mm (see Figure 111). The distances shall be measured
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238 along the shortest path from the front of the handle grip to the nearest cutting edge of the
239 cutter blade.
240 For all categories in Table 101, if there is a front hand barrier, then the x and x distances in
1 2
241 Figure 108 a) and Figure 108 b) shall be measured along the shortest path from the furthest
242 side of the handle, via the edge of the front hand barrier, to the nearest cutting edge of the
243 cutter blade. The front hand barrier shall not have any openings with a minor dimension
244 larger than 10 mm.
245 Additionally, for category 3a hedge trimmers, the front hand barrier shall have a minimum
246 shape described by:
247 – a height y of 90 mm measured perpendicularly from the cutting plane; and
1
248 – a width y of 50 mm on either side of the centreline of the cutting device.
2
249 Both the y and y measurements are made with the cutting device in the 0˚ position, if
1 2
250 axially rotatable. See Figure 109.
251 Compliance is checked by inspection and by measurement.
252 Replace the existing text of 19.103.2.4 with the following new text:
253 19.103.2.4 Hedge trimmer category 4 (see Figure 116)
254 The minimum depth of the blunt extensions, if required in accordance with 19.103.2.1, shall
255 be no less than 8 mm as shown in Figure 116 a).
+1
256 In addition, the distance between the blade teeth and the side of a (120 ) mm test cylinder
−0
257 shall not be less than 4 mm when the test cylinder is positioned perpendicular to the plane of
258 the cutting device and between two blunt extensions as shown in Figure 116 a).
259 For machines with blunt extensions that are not an integral part of the cutting device, the
260 following additional requirement shall be met:
261 The distance between the end of the cutting plane between the cutter blades and the side of
262 the test cylinder shall not be less than 4 mm when the test cylinder is positioned as shown in
263 Figure 116 a) and then tilted around the ends of the blunt extensions up to an angle of 40°
264 as shown in Figure 116 b).
265 Blunt extensions are not required for category 4 hedge trimmers with a blade configuration
266 where there are only two handles and the front handle is permanently fixed to the smooth
267 side of a single sided cutting device.
268 Compliance is checked by inspection and by manual test.
269 Replace the existing text of 19.103.3.4 with the following new text:
270 19.103.3.4 An adjustable cutting device shall be provided with a momentary cutting device
271 release control to disengage the cutting device from a locked position. A handle in
272 accordance with 8.14.2 b) 108) shall be provided for adjusting the position of the cutting
273 device such that contact with the cutting device is not required. The requirements of 21.30
274 shall not apply to the cutting device adjusting handle.
275 Compliance is checked by inspection and by manual test.
276 Replace the existing text of the third paragraph of 19.103.3.6 with the following new text:
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277 The cutting device release control is actuated in accordance with 8.14.2 b) 108) a total of
278 2 000 times, engaging all locking detent positions over the full range of travel of the
279 adjustable cutting device, in both directions.
280 Replace the existing text of the first paragraph of 19.104.2 with the following new text:
281 19.104.2 The hedge trimmer shall be mounted and instrumented in such a manner that the
282 results of the test are not affected.
283 20 Mechanical strength
284 Replace the existing text of the fourth paragraph of 20.3.1 with the following new text:
285 Each drop shall be conducted on a separate sample, unless a single sample can be subjected
286 to multiple drops without failure. If a sample has been subjected to multiple drops and fails,
287 then the drop in the orientation that resulted in the failure is repeated using a new sample. If
288 the new sample passes the test for the drop in that orientation, then the requirements for the
289 drop in that orientation are considered to be fulfilled. The test is continued in this manner until
290 all drops in each of the four orientations are completed.
291 21 Construction
292 Add the following new subclause:
293 21.17.1 Addition:
294 This subclause of Part 1 is also applicable for an operator presence sensor whose motion is
295 mechanically obstructed and either functions as a lock-off device or is locked off as a switch.
296 Add the following new subclause:
297 21.17.1.3 Replacement of Table 7:
298 Table 7 – Switch trigger force
Trigger type Force
N
Single finger trigger
100
(trigger length < 30 mm)
Multi finger trigger
150
(trigger length ≥ 30 mm)
Operator presence sensor 100
299
300
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301 Replace the existing text of 21.18.102.3 with the following new text:
302 21.18.102.3 The hedge trimmer shall be provided with a blade control having a lock-off
303 device such that at least two separate and dissimilar actions are required before drive to the
304 cutting device is possible. It shall not be possible to achieve these actions with a single
305 grasping motion or a straight line motion within any grasping surface identified in accordance
306 with 8.14.2 b) 6).
307 Drive to the cutting device shall only be enabled when the lock-off device is operated prior to
308 the power switch.
309 It shall not be necessary to sustain the actuation of the lock-off device until the blade control
310 is activated, provided
311 – the blade control or an operator presence sensor (if any) is activated within 5 s of the
312 release of the lock-off device; and
313 – there is a visual or audible indication as soon as the lock-off actuator is released and
314 continues at least until the blade control or an operator presence sensor (if any) is
315 activated;
316 or
317 – an operator presence sensor (if any) is activated prior to the release of the actuator of
318 the lock-off device.
319 NOTE The visual or audible indication is intended to only indicate the state of the hedge trimmer.
320 The hedge trimmer shall return to the original locked state within 5 s when the blade control
321 is released (i.e. at least two separate and dissimilar actions are required before drive to the
322 cutting device is possible), unless
323 – an operator presence sensor is provided; and
324 – the hand is not released from the operator presence sensor.
325 The operator presence sensing function may be achieved by any combination of mechanical,
326 electrical or electronic means.
327 Compliance is checked by inspection, by measurement and by manual test.
328 Additionally, for lock-off devices that are actuated in a direction generally perpendicular to the
329 longitudinal vertical plane of the machine, (see Figure 124), and that are located within any
330 grasping surface of handle(s) or grasping surface(s) identified in accordance with
331 8.14.2 b) 103), in order to determine if it is possible to actuate the blade control and the lock-
332 off device with a single grasping motion or a straight line motion, compliance is checked by
333 the following test:
334 With the blade control in the "off" position, a 25 mm diameter x 75 mm long steel rod with a
335 force not exceeding 20 N is applied to the lock-off device in any direction. The steel rod shall
336 be applied such that its cylindrical surface bridges the surface of the lock-off device and any
337 surface adjacent to the lock-off device. During the test, it shall not be possible to actuate the
338 blade control with a force not exceeding 20 N.
339 Replace the existing text 21.30.101 with the following new text:
340 21.30.101 Extended-reach hedge trimmers are considered to be machines likely to cut into
341 concealed wiring or their own cord and shall meet the following requirements:
342 Handles and grasping surfaces of extended-reach hedge trimmers, as specified in 8.14.2 b)
343 6), shall be formed of insulating material or, when of metal, shall be either adequately covered
344 by insulating material having a thickness of at least 1 mm or their accessible parts shall be
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345 isolated by insulating barrier(s) from accessible metal parts that may become live by the
346 cutting device. These insulating barriers are not to be regarded as basic insulation,
347 supplementary insulation or reinforced insulation.
348 An insulated, stick type, auxiliary handle shall be provided with a flange having a height not
349 less than 12 mm above the handle and covering at least 2/3 of the periphery to provide a
350 barrier to minimize the likelihood of the hand from slipping onto surfaces that are not suitably
351 insulated or isolated.
352 A grasping surface formed by sections of the shaft of an extended-reach hed
...
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