1、Hand-held motor-operated electric tools Safety Part 2-3: Particular requirements for grinders, polishers and disk-type sanders Amendment 1:2013 (MOD) and Amendment 2:2013 (MOD) to National Standard of Canada CAN/CSA-C22.2 No. 60745-2-3-07 (IEC 60745-2-3:2006, MOD) IEC 2010, 2012. CSA Group 2013. All
2、 rights reserved. Unauthorized reproduction is strictly prohibited.Standards Update Service Amendment 1:2013 and Amendment 2:2013 to CAN/CSA-C22.2 No. 60745-2-3-07 September 2013 Title: Hand-held motor-operated electric tools Safety Part 2-3: Particular requirements for grinders, polishers and disk-
3、type sanders Pagination: 24 pages (iv preliminary and 20 text) To register for e-mail notification about any updates to this publication g o t o shop.csa.ca c l i c k o n CSA Update Service The List ID that you will need to register for updates to this publication is 2422477. If you require assistan
4、ce, please e-mail techsupportcsagroup.org or call 416-747-2233. Visit CSA Groups policy on privacy at csagroup.org/legal to find out how we protect your personal information.Approved by CSA Group Amendment 1:2013 (MOD) and Amendment 2:2013 (MOD) to National Standard of Canada CAN/CSA-C22.2 No. 60745
5、-2-3-07 Second Edition (IEC 60745-2-3:2006, MOD) Underwriters Laboratories Inc. UL 60745-2-3 Second Edition ICS 25.140.20 Amendment 1 and Amendment 2 Hand-Held Motor-Operated Electric Tools Safety Part 2-3: Particular Requirements for Grinders, Polishers and Disk-Type Sanders Amendment publication d
6、ate: SEPTEMBER 20, 2013 This amendment is an adoption of IEC Amendment 1 (2010) and IEC Amendment 2 (2012) to publication IEC 60745-2-3, Second Edition (2006). ANSI/UL 60745-2-3-2013 2013 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the
7、prior permission of the publisher. Amendment 1:2010 and Amendment 2:2012 to International Standard IEC 60745-2-3:2006 have been adopted with National Differences (MOD) as Amendment 1:2013 and Amendment 2:2013 to CAN/CSA-C22.2 No. 60745-2-3-07. These Amendments were reviewed by the CSA Subcommittee o
8、n Safety of Hand-Held Motor-Operated Electric Tools, under the jurisdiction of the CSA Technical Committee on Consumer and Commercial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and have been formally approved by the CSA Technical Committee. To purchase C
9、SA Group Standards and related publications, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2013 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be alte
10、red in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the Second Edition including revisions through September 20, 2013. The most recent designation of
11、 ANSI/UL 60745-2-3 as an American National Standard (ANSI) occurred on September 20, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. The National Difference Page and IEC Foreword are also excluded from the ANSI appro
12、val of IEC-based standards. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. To purchase UL Standards, visit Comm 2000 a
13、t http:/m- how_to_order.aspx or call toll-free 1-888-853-3503.SEPTEMBER 20, 2013 Amendments 1 and 2:2013 to CAN/CSA-C22.2 No. 60745-2-3-07 UL 60745-2-3 iii Canadian/US National Differences 101DV DE Modification: Add the following to Note 2 of the IEC Foreword of the Part 2: The numbering system in t
14、he standard uses a space instead of a comma to indicate thousands and uses a comma instead of a period to indicate a decimal point. For example, 1 000 means 1,000 and 1,01 means 1.01. 102DV DE Modification: Replace the paragraph after Note 3 of the IEC Foreword of the Part 2 with the following: Word
15、s in SMALL ROMAN CAPS in the text are defined in Clause 3. In the CSA Group publication of this Standard, Clause 102DV is not applicable. 3.103.6DV D2 Addition: Add the following definition to Clause 3 of the Part 2: adaptor backing flange: backing flange which contacts and supports in the hub area
16、and extends past the raised portion to reduce the flexing of the wheel periphery 8.1DV D1 Modification: Replace this National Difference in the Part 2 with the following: “WARNING To reduce the risk of injury, use only accessories rated at least equal to the maximum speed marked on the tool.” All gr
17、inders required to have a guard by Clause 19.101 shall be marked with the following warning: “WARNING To reduce the risk of injury, always use proper guards when grinding.” If the above cautionary markings are included as part of a list of cautionary markings, the words “WARNING To reduce the risk o
18、f injury” need not be repeated. 19.101DV D2 Modification: Replace the first item of paragraph 3 of Clause 19.101 of the Part 2 with the following: be designed so that, in case of a wheel burst, the guard reduces the risk of injury to the operator and complies with the test of 20.101; 19.104.3DV D2 A
19、ddition: Add Clause 19.104.3DV to the Part 2: An adaptor backing flange may be used in place of the backing flange to mount wheel types 27, 28 and 29 with a diameter greater than 155 mm. The adaptor backing adaptor backing flange shall extend beyond the central hub, or raised portion, of the wheel.
20、The adaptors are exempt from the flange strength test specified in 19.105. 19.107DV D1 Deletion: Delete this National Difference in the Part 2. 20.5DV D2 Deletion: Delete Clause 20.5 of the Part 2: This clause is not applicable. 20.101.1DV D2 Modification: Delete the last two paragraphs of Clause 20
21、.101.1 of the Part 2: The requirements in the last two paragraphs do not apply. 20.101.2DV D2 Modification: Replace Clause 20.101.2 of the Part 2 with the following: The maximum thickness grinding wheel recommended by the manufacturer with a diameter equal to the rated capacity of the grinder shall
22、be notched into four equal segments (quadrants). The width of each notch shall not exceed 2,5 mm. For wheel types 1, 27, 28, 29, 41 and 42, the cut is directed from the outer edge radially towards the centre (see Figure 107). For wheel types 6 and Type 11, the cut starts across the working surface t
23、owards the mounting end (see Figure 108).iv Amendments 1 and 2:2013 to CAN/CSA-C22.2 No. 60745-2-3-07 UL 60745-2-3 SEPTEMBER 20, 2013 The notched grinding wheel is mounted to the spindle with any mounting means that will allow for the centrifugal forces to cause the wheel to disintegrate. The mounti
24、ng means shall position the wheel at the same location relative to the guard as would occur with the flange recommended in accordance with the instructions in 8.12.2 b). 20.101.4DV D2 Modification: Replace Clause 20.101.4 of the Part 2 with the following: While monitoring the wheel speed with a tach
25、ometer, the voltage to the tool is gradually increased until the higher of the speeds established in 19.6 or 90 % of the rated speed of the grinder is achieved. If the wheel does not disintegrate at this specified speed, at the manufacturers option: either continue further increasing the speed; or s
26、top the grinder, increase the length of the pre-cuts and repeat the test above until the wheel bursts at or above the speed specified in this clause. 20.101.5DV D2 Modification: Replace Clause 20.101.5 of the Part 2 with the following: The wheel guard has met the requirements of 20.101 if the follow
27、ing results have been achieved: a) the wheel burst speed was at or higher than required by first paragraph of 20.101.4; b) the guard and the fasteners or the guards mounting hardware shall remain in place. Deformation, hairline cracks or scratches and gouges to the guard and mounting hardware are ac
28、ceptable; c) the guard shall not have rotated in the direction of the wheel rotation by more than 90 (see Figures 106a and 106b). If the guard covers 360 of the wheels periphery, the 90 limitation on the guards rotation is not applicable; d) the impression of the impact in the clay wall from the maj
29、or segments shall be within the fragment zone. There shall be no major fragments or impressions of fragments outside the fragment zone (the operator zone). The fragment zone is defined by extending a straight line through the midpoints of the two side handles onto the clay wall facing the unguarded
30、wheel in the position of the grinder just prior to the wheel bursting (see Figure 110a). After the wheels disintegration, most of the four major wheel segments will be captured by the clay wall. If any of the major segments rebound from the clay, the segments impression must be identified. Dust, min
31、or fragments and segments remaining in the guard are ignored. If the wheel guard has failed any of the b) d) requirements at the wheel burst speed that was above the speed specified by the first paragraph of 20.101.4, the test shall be repeated with the increased length of segment pre-cuts. K12.4DV
32、D1 Deletion: Delete this National Difference in the Part 2. K24.4DV D1 Deletion: Delete this National Difference in the Part 2. 103DV DE Modification: Replace Footnote 1) in the Bibliography of IEC Amendment 1 with the following: IEC 60745-2-22, Edition 1, was published in March 2011. The harmonized
33、 UL and CSA version of IEC 60745-2-22, Edition 1, has also been published and includes North American national differences. 104DV DE Modification: Replace Footnote 1) in the Bibliography of IEC Amendment 2 with the following: IEC 60745-2-23, Edition 1, was published in December 2012. The harmonized
34、UL and CSA version of IEC 60745-2-23, Edition 1, has also been published and includes North American national differences. IEC 60745-2-3 Edition 2.0 2010-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Hand-held motor-operated electric tools Safety Part 2-3: Particular requirements for grinders, poli
35、shers and disk-type sanders Outils lectroportatifs moteur Scurit Partie 2-3: Rgles particulires pour les meuleuses, lustreuses et ponceuses du type disque IEC 60745-2-3:2006/A1:2010 AMENDMENT 1 AMENDEMENT 1 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights re
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48、ia: www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 20 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechnique Internation
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