SIST EN 60745-2-22:2011/oprAC:2013

Hand-held motor-operated electric tools - Safety - Part 2-22: Particular requirements for cut-off machines

2012-10-04 - Enquiry editing allocated to [e-mail]
D140/C009: NWI approved * ENQ + FV track * In hands of newly set up WG 4

Handgeführte motorbetriebene Elektrowerkzeuge - Sicherheit - Teil 2-22: Besondere Anforderungen für Trennschleifmaschinen

Outils électroportatifs à moteur - Sécurité - Partie 2-22: Règles particulières pour les tronçonneuses à disques

Električna ročna orodja - Varnost - 2-22. del: Posebne zahteve za rezalnike

General Information

• Status: Not Published
• Public Enquiry End Date: 24-Feb-2013
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 10-Jan-2020
• Due Date: 15-Jan-2020
• Completion Date: 10-Jan-2020
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN 60745-2-22:2011/prAC:2012 - Hand-held motor-operated electric tools - Safety - Part 2-22: Particular requirements for cut-off machines

Relations

• Amends: SIST EN 60745-2-22:2011 - Hand-held motor-operated electric tools - Safety - Part 2-22: Particular requirements for cut-off machines
• Effective Date: 04-Oct-2011

Overview

EN 60745-2-22:2011/prAC:2012 is a CENELEC draft amendment to the European standard for the safety of hand-held motor-operated electric tools - specifically Part 2-22: particular requirements for cut-off machines. This amendment (prepared by CLC/TC 116) adds normative requirements for the measurement of inhalable and respirable dust emitted by cut-off machines and wall chasers and supplements the existing Part 1 and IEC/EN 60745 series with new clauses prefixed “Z”.

Key topics and technical requirements

• Scope of amendment: Introduces Annex ZC (normative) specifying dust measurement requirements for cut-off machines and wall chasers.
• Dust measurement focus: Defines procedures to measure concentrations of inhalable dust and respirable dust, and requires reporting of mean respirable dust concentration.
• Test procedure and operating conditions: Adds detailed operating conditions (Tables ZC.101 and ZC.102) including:
  • Concrete slab test pieces: typical dimensions 400×400 mm up to 600×600 mm, thickness (50 ± 5) mm, stored dry for ≥ 3 weeks (six weeks storage total).
  • Slot depths: rated capacity ≤ 180 mm → 20 mm; > 180 mm → 40 mm.
  • Minimum cutting lengths per test: tools ≤ 180 mm → 18.4 m total (8 cuts); tools > 180 mm → 13.8 m total (6 cuts).
  • Feed force target: set to achieve average power consumption of 70 %–90 % of rated input during the test.
  • Wall chasers: use calcium silicate blocks (density ~1 800–2 000 kg/m³), specified storage and orientation, total slot lengths (e.g., 40 m for max depth ≤ 30 mm).
• Tool setup: Tests use new or re-sharpened diamond wheels as specified by the manufacturer; speed setting and feed settings adjusted to manufacturer recommendations.
• Reporting and instructions: Test reports must include mean respirable dust concentration; additional instructions mirror Part 1 with the respirable dust mean requirement added.

Practical applications and users

• Manufacturers of cut-off machines and wall chasers - to design, validate and document dust-emission performance and to meet EU safety directives.
• Test laboratories and certification bodies - for standardized test setups, repeatable measurement procedures, and reporting requirements.
• Product compliance engineers and safety officers - to assess worker exposure risk and to demonstrate conformity with electrotechnical safety standards.
• Regulators and procurement teams - to specify performance and safety criteria for powered cutting equipment.

Related standards

• EN 60745 series (Part 1 and Part 2-22:2011)
• IEC 60745-2-22 (as referenced)
• CENELEC / CLC/TC 116 documents on motor-operated tool safety

Keywords: EN 60745-2-22, cut-off machines, dust measurement, respirable dust, inhalable dust, wall chasers, hand-held power tools, CENELEC, safety standard, test procedure.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2013
(OHNWULþQDURþQDRURGMD9DUQRVWGHO3RVHEQH]DKWHYH]DUH]DOQLNH
Hand-held motor-operated electric tools - Safety - Part 2-22: Particular requirements for
cut-off machines
Handgeführte motorbetriebene Elektrowerkzeuge - Sicherheit - Teil 2-22: Besondere
Anforderungen für Trennschleifmaschinen
Outils électroportatifs à moteur - Sécurité - Partie 2-22: Règles particulières pour les
tronçonneuses à disques
Ta slovenski standard je istoveten z: EN 60745-2-22:2011/prAC:2012
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 60745-2-22
prAC
NORME EUROPÉENNE
December 2012
EUROPÄISCHE NORM
ICS
English version
Hand-held motor-operated electric tools -
Safety -
Part 2-22: Particular requirements for cut-off machines

Outils électroportatifs à moteur -  Handgeführte motorbetriebene
Sécurité - Elektrowerkzeuge -
Partie 2-22: Règles particulières pour les Sicherheit -
tronçonneuses à disques Teil 2-22: Besondere Anforderungen für
Trennschleifmaschinen
This draft amendment prAC, if approved, will modify the European Standard EN 60745-2-22:2011; it is submitted to
CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2013-05-10.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal,
Romania, 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.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Project: 23763 Ref. No. EN 60745-2-22:2011/prAC:2012 E

1 Foreword
2 This document [EN 60745-2-22:2011/prAC:2012] has been prepared by CLC/TC 116 "Safety of motor-
3 operated electric tools".
4 This document is currently submitted to the Enquiry.
5 This document has been prepared under a mandate given to CENELEC by the European Commission
6 and the European Free Trade Association, and supports essential requirements of EU Directive(s).
7 This amendment was developed to set out requirements for the measurement of the concentration for
8 inhalable and respirable dust emitted by cut-off machines and wall chasers.
9 Clauses, subclauses, notes, tables and figures which are additional to those in IEC 60745-2-22 are
10 prefixed “Z”.
11 Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101;
12 additional annexes are lettered AA, BB, etc.

- 3 - EN 60745-2-22:2011/prAC:2012
13 Text of prAC to EN 60745-2-22:2011
14 Annexes
15 Add the following new Annex:
16 Annex ZC
17 (normative)
19 Dust measurement
20 ZC.1 Scope
21 This clause of Part 1 is applicable except as follows:
22 Addition:
23 Annex ZC applies to the measurement of the concentration for inhalable and respirable dust emitted by
24 cut-off machines and wall chasers.
25 ZC.4 Test procedure
26 This clause of Part 1 is applicable except as follows:
27 ZC.4.3 Operating conditions
28 Addition:
29 Cut-off machines intended to cut materials such as concrete, brick and masonry are tested under load
30 observing the conditions shown in Table ZC.101.

31 Table ZC.101 — Operating conditions for cut-off machines
Material and set-up Concrete slabs with minimum dimensions of 400 mm x 400 mm, maximum dimensions of
600 mm x 600 mm and a thickness of (50 ± 5) mm according to EN 1339. The concrete
slabs shall be stored for at least six weeks with the last three weeks under dry conditions.
During storing, the distance between the slabs shall be at least one slab thickness. The
slabs shall have the following specifications in accordance with the following clauses of
EN 1339:2003:
Class 3 (5.3.3.2), Class 4 (5.3.4.2),
Class 70 (5.3.6.2) for 400 mm x 400 mm,
Class 45 (5.3.6.2) for 400 mm x 600 mm and 600 mm x 600 mm.
1)
NOTE Typical material are concrete slabs made by Lithonplus, Germany.
Concrete slabs are placed horizontally on a table with
...