Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 3-7: Particular requirements for transportable wall saws

This standard applies to transportable wall saws guided by a track guiding system intended for dry cutting or to be connected to a liquid system for cutting concrete, stone or similar material by means of a diamond wheel. The rated speed of the diamond wheel does not exceed a peripheral speed of 100 m/s at rated capacity.

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Elektromotorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost - 3-7. del: Posebne zahteve za premične stenske žage - Dopolnilo AA

General Information

Status
Published
Current Stage
6060 - Document made available
Due Date
21-May-2021
Completion Date
21-May-2021

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FprEN IEC 62841-3-7:2020/oprAA:2020
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SLOVENSKI STANDARD
kSIST FprEN IEC 62841-3-7:2020/oprAA:2020
01-oktober-2020

Elektromotorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost - 3-

7. del: Posebne zahteve za premične stenske žage - Dopolnilo AA
Electric motor-operated hand-held tools, transportable tools and lawn and garden

machinery - Safety - Part 3-7: Particular requirements for transportable wall saws

Ta slovenski standard je istoveten z: FprEN IEC 62841-3-7:2020/prAA
ICS:
25.080.60 Strojne žage Sawing machines
25.140.20 Električna orodja Electric tools
kSIST FprEN IEC 62841-3- en
7:2020/oprAA:2020

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

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kSIST FprEN IEC 62841-3-7:2020/oprAA:2020
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kSIST FprEN IEC 62841-3-7:2020/oprAA:2020
EUROPEAN STANDARD DRAFT
FprEN IEC 62841-3-7:2020
NORME EUROPÉENNE
EUROPÄISCHE NORM
prAA
August 2020
ICS
English Version
Electric motor-operated hand-held tools, transportable tools and
lawn and garden machinery - Safety - Part 3-7: Particular
requirements for transportable wall saws
To be completed To be completed

This draft amendment prAA, if approved, will modify the European Standard FprEN IEC 62841-3-7:2020; it is submitted to CENELEC

members for enquiry.
Deadline for CENELEC: 2020-11-06.
It has been drawn up by CLC/TC 116.

If this draft becomes an amendment, 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.

This draft amendment was established by CENELEC 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
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

© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 70327 Ref. No. FprEN IEC 62841-3-7:2020/prAA E
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kSIST FprEN IEC 62841-3-7:2020/oprAA:2020
FprEN 62841-3-7:2020/prAA:2020 (E)
1 European foreword

2 This document (FprEN 62841-3-7:2020/prAA:2020) was prepared by CLC/TC 116 “Safety and

3 environmental aspects of motor-operated electric tools”.
4 This document is currently submitted to the Enquiry.
5 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 48 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)

6 This document modifies by common modifications FprEN 62841-3-7:2020, which consists of the text of

7 116/455/FDIS (future IEC 62841-3-7, Ed. 1) prepared by IEC/TC 116 “Safety of motor-operated electric

8 tools”.

9 If approved, this draft amendment will be published as EN 62841-3-7:202X/A11:202X.

10 This series is divided into four parts:

11 Part 1: General requirements which are common to most hand-held electric motor operated tools (for the

12 purpose of this standard referred to simply as tools) which could come within the scope of this standard;

13 Part 2, 3 or 4: Requirements for particular types of tools which either supplement or modify the

14 requirements given in Part 1 to account for the particular hazards and characteristics of these specific

15 tools.
16 This Part 3-7 is to be used in conjunction with EN 62841-1:2015.

17 This Part 3-7 supplements or modifies the corresponding clauses in EN 62841-1:2015, so as to convert it

18 into the European Standard: Particular requirements for transportable wall saws.

19 Where a particular subclause of Part 1 is not mentioned in this Part 3-7, that subclause applies as far as

20 relevant. When this standard states “addition”, “modification” or “replacement”, the relevant text in Part 1

21 is to be adapted accordingly.
22 The following print types are used:
23 — requirements; in roman type
24 — test specifications: in italic type;
25 — notes: in smaller roman type.
26 The terms defined in Clause 3 are printed in bold typeface.

27 Subclauses, notes, tables and figures which are additional to those in Part 1 are numbered starting

28 from 101.

29 Clauses, subclauses, notes, tables, figures and annexes which are additional to those in

30 IEC 62841-3-7:202X are prefixed “Z”.
31 This document follows the overall requirements of EN ISO 12100.
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kSIST FprEN IEC 62841-3-7:2020/oprAA:2020
FprEN 62841-3-7:2020/prAA:2020 (E)

32 This document has been prepared under a mandate given to CENELEC by the European Commission

33 and the European Free Trade Association and supports essential requirements of EU Directive(s).

34 For the relationship with EU Directive(s), see informative Annex ZZ, which is an integral part of this

35 document.

36 Compliance with the clauses of Part 1 together with this Part 3-7 provides one means of conforming with

37 the essential health and safety requirements of the Directive concerned.
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kSIST FprEN IEC 62841-3-7:2020/oprAA:2020
FprEN 62841-3-7:2020/prAA:2020 (E)
38 1 Modification to Clause 1, “Scope”
39 Replace the existing text of Clause 1 with the following:
40 “This clause of Part 1 is applicable, except as follows:
41 Replacement of the third paragraph:

42 The rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for three-phase

43 a.c. tools.
44 Addition:

45 This document applies to transportable wall saws guided by a track guiding system intended for dry

46 cutting or to be connected to a liquid system for cutting concrete, stone or similar material by means of a

47 diamond wheel. The rated speed of the diamond wheel does not exceed a peripheral speed of 100 m/s

48 at rated capacity.

49 This document does not apply to transportable wall saws with a design that allows an automatic change

50 of the cutting direction without user intervention before any change of the cutting direction.

51 This document does not apply to transportable wall saws that employ hydraulic systems.

52 This document does not apply to hand-held cut-off machines.

53 NOTE 101 Hand-held cut-off machines will be covered by a future part of IEC 62841-2.

54 This document covers all significant hazards, hazardous situations or hazardous events relevant for tools

55 covered by this standard.

56 NOTE Z101 Essential requirements not mentioned in Table ZZ.1 are deemed to be not applicable, because the

57 corresponding hazards are either not relevant for tools covered by this standard or do not require specific action by

58 the designer.”
59 2 Modification to Clause 3, “Terms and definitions”
60 Replace the existing 3.106 with the following:
61 "3.106
62 saw unit

63 unit on which the diamond wheel, the wheel guard, the saw unit feed motor, if any, and the interface to

64 connect it to the track guiding system are mounted"
65 3 Modifications to Clause 8, “Marking and instructions”
66 Add the following additional safety warning to 8.14.1.101:

67 "f) Never leave the wall saw unattended during operation. This reduces the risk of jamming the

68 diamond wheel which could cause loss of control or damage to the wall saw.

69 NOTE This warning is omitted, if the wall saw is equipped with a momentary power switch without a provision

70 to lock it in the on position."
71 Replace the text and NOTE after 8.14.2 c) 101) with the following:
72 “8.14.2 Za) Replacement:
73 Emissions
74 1) The noise emission, measured in accordance with I.2, as follows:

75 — A-weighted emission sound pressure level L and its uncertainty K , where L exceeds

pA pA pA
76 70 dB(A).
77 Where L does not exceed 70 dB(A), this fact shall be indicated;
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kSIST FprEN IEC 62841-3-7:2020/oprAA:2020
FprEN 62841-3-7:2020/prAA:2020 (E)

78 — A-weighted sound power level L and its uncertainty K , where the A-weighted emission

WA WA
79 sound pressure level L exceeds 80 dB(A);

80 — C-weighted peak emission sound pressure level L , where this exceeds 63 Pa (130 dB in

pCpeak
81 relation to 20 µPa).
82 2) Recommendation for the operator to wear hearing protection.
83 3) The following information:

84 — that the declared noise emission value(s) have been measured in accordance with a standard

85 test method and may be used for comparing one tool with another;

86 — that the declared noise emission value(s) may also be used in a preliminary assessment of

87 exposure.
88 4) A warning:

89 — that the noise emissions during actual use of the power tool can differ by up to 10 dB compared

90 to the declared values, depending on the diamond wheel and working conditions, which should

91 be taken into account when selecting hearing protection; and

92 — of the need to identify safety measures to protect the operator that are based on an estimation of

93 exposure in the actual conditions of use (taking account of all parts of the operating cycle such

94 as the times when the tool is switched off and when it is running idle in addition to the trigger

95 time).”
96 4 Addition to Clause 19, “Mechanical hazards”
97 Add the following new subclause 19.4:
98 “19.4 Addition:

99 Wall saws with manual feed shall have at least one handle or grasping surface to ensure safe handling

100 during use.”
101 5 Modifications to Clause 20, “Mechanical strength”
102 Add the following new subclause 20.3:
103 “20.3 Addition:

104 If a wall saw includes any hand-held unit(s) such as a remote control, only 20.3.1 applies for these

105 hand-held unit(s).”
106 Replace the first paragraph of subclause 20.5 with the following:

107 “Wall saw handles and grasping surfaces for safe handling during use as required by 19.4 shall have

108 adequate mechanical strength in order t
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