UL 60745-2-13 (ND)-2011 National Differences For Hand-Held Motor-Operated Electric Tools C Safety C Part 2-13 Particular Requirements for Chain Saws (First Edition Reprint with rev).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60745-2-13Hand-Held Motor-Operated Electric Tools - Safety - Part 2-13: Particular Requirements for ChainSawsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC

2、TION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60745-2-13Hand-Held Motor-Operated Electric Tools - Safety - Part 2-13: Particular Requirements for Chain SawsEdition: 1Edition Date: December 8, 2011The revisions dated May 15, 2014 are being issued to incorporate the followin

3、g changes and toreflect the latest ANSI approval date of the Standard:Please note that the national difference document incorporates all of the U.S. nationaldifferences for UL 60745-2-13 including the new national differences itemized below. UL60745-2-13 is based on IEC 60745-2-13, Edition 2.1, publ

4、ished April, 2011.1. Addition Of Annex 101.DVA As A National Difference Applicable In The U.S. Only ToSpecify Requirements For The Evaluation Of Battery Operated Top-Handle Chain Saws2. Addition Of Annex 101.DVB As A National Difference To Specify Requirements For TheEvaluation Of Battery Operated P

5、runer SawsThis document provides a single listing of the National Differences included in the UL adoption ofthe corresponding IEC standard.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical

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8、of such damage. In no event shall ULs liability for any damage ever exceed the pricepaid for this standards document, regardless of the form of the claim.Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, l

9、iability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright 2015 Underwriters Laboratories Inc.MAY 15, 2015NATIONAL DIFFERENCES FOR UL UL 60745-

10、2-132UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single listing of the technical National Differences included in the UL adoptionof the corresponding IEC standard.In its IEC-based standards, UL uses the nota

11、tions indicated below to identify national difference type, andthese types are additionally noted in this document. The standard may not use all types of thesedeviations.D1 - These are deviations which are based on basic safety principles and requirements, elimination ofwhich would compromise safety

12、 for U.S. consumers and users of products.D2 - These are deviations based on safety practices. These are deviations for IEC requirements that maybe acceptable, but adopting the IEC requirements would require considerable retesting or redesign on themanufacturers part.DC - These are deviations based

13、on the component standards and will not be deleted until a particularcomponent standard is harmonized with the IEC component standard.DE - These are deviations based on editorial comments or corrections.DR - These are deviations based on the national regulatory requirements.Each national difference

14、contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text of the national difference is to be applied to the base IECtext:Addition / Add - An addition entails adding a complete new numbered clause, subclause, table,figure, or

15、annex. Addition is not meant to include adding select words to the base IEC text.Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subclause,table, figure, or annex without any replacement text.Modification / Modify - A modification is an altering of the existing

16、 base IEC text such as theaddition, replacement or deletion of certain words or the replacement of an entire clause,subclause, table, figure, or annex of the base IEC text.MAY 15, 2015 NATIONAL DIFFERENCES FOR UL UL 60745-2-13 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRI

17、BUTION WITHOUT PERMISSION FROM ULNational Differences1DV D1 Modification: Add the following to Clause 1 of the Part 2:For Canada, this standard has been evaluated and is considered to comply with therequirements in CSA Z62.1 for Class 2C chain saws.2DV D1 Modification: Add the following reference to

18、 Clause 2 of the Part 2:CSA Z62.1-11Chain saws8.1DV D1 Modification: Replace Clause 8.1 of this Part 2 with the following:Chain saws shall be marked with the following: maximum length of the guide bar in mm; identification of the direction of rotation of the saw chain by a legible anddurable mark; a

19、 bar and chain combination that maintains compliance with the standard.In addition, chain saws shall be marked with safety recommendations and warnings of thefollowing substance which shall be written in one of the official languages of the countryin which the tool is to be sold. Wear eye protection

20、 or the sign M004 of ISO 7010 or the sign specified inAnnex AA. Wear ear protection. or the sign M003 of ISO 7010 or the sign specified inAnnex AA.The protection symbols may be modified by combining or adding other personal protectiveequipment such as head protection, dust mask, etc. Contact of the

21、 guide bar tip with any object should be avoided. The signsspecified in Annex AA may additionally be provided. Tip contact can cause the guide bar to move suddenly upward and backward,which can cause serious injury. The signs specified in Annex AA mayadditionally be provided. Always use two hands wh

22、en operating the chain saw. The signs specified inAnnex AA may additionally be provided.For chain saws with a degree of protection of less than IPX4:MAY 15, 2015NATIONAL DIFFERENCES FOR UL UL 60745-2-134UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION

23、 FROM UL Do not expose to rain. or the sign specified in Annex AA may additionally beprovided.For mains supplied tools: Remove plug from the mains immediately if the cable is damaged or cut. Thesign specified in Annex AA may additionally be provided.For Canada, the applicable chain saw classificatio

24、n marking Class 2C, in accordancewith CSA Z62.1, or equivalent, shall be additionally marked on the chain saw.8.12.2DV D1 Modification: Add the following item to Clause 8.12.2(a) of this Part 2:103A) Recommended bar and chain combination(s) that can be used and that maintainscompliance with this sta

25、ndard.19.101DV D2 Modification: Replace the third paragraph of Clause 19.101 of this Part 2with the following:Minimal clearances and sizes of the handles shall be in accordance with ISO 7914. Forchain saws with a maximum no-load speed not exceeding 8 m/s and a maximum cuttinglength not exceeding 300

26、 mm, the dimension D in Table 1 of ISO 7914 may be reduced toa minimum of 125 mm.19.108DV D2 Modification: Replace the first paragraph of Clause 19.108 of this Part 2with the following:Chain saws shall have a computed kickback angle or chain stop angle, whichever is less,not exceeding 45. A bar tip

27、guard, even if it is not removable (riveted, spot welded, etc.),shall be removed for testing.24.1DV D1 Modification: Replace Clause 24.1DV of the Part 1 with the following:The supply cable shall have a length not less than 200 mm but not greater than 500 mmlong.24.2DV DR Modification: Add the follow

28、ing to Clause 24.2 of the Part 1:The attachment plug on the supply cord shall be constructed so that, when inserted in theconnector of an extension cord, the blades will not be energized until they are inaccessibleto contact.Compliance shall be checked by the following test.The receptacle shall be c

29、onnected to the extension cord of the test assembly illustrated inFigure 101.DV with the plug inserted in the receptacle as far as possible. The plug shall bewithdrawn not more than the distance necessary to permit the test probe to be insertedbetween the plug body and the extension cord receptacle.

30、 The test probe shall be insertedwith a force of 18 N (4,1 lb) or less, until the probe contacts one blade of the plug. Whilethe probe is in contact with the blade, the electrical continuity shall be determined by anohmmeter or similar instrument between the contacts of the extension cord receptacle

31、 andMAY 15, 2015 NATIONAL DIFFERENCES FOR UL UL 60745-2-13 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULthe test probe. The test probe shall not contact any current-carrying blade of theattachment plug while the plug is conductively connec

32、ted to the connector of theextension cord. The test shall be repeated for the other blade of the attachment plug.24.4DV DR Modification: Replace Clause 24.4 of this Part 2 with the following:Supply cords shall be not lighter than type SJOW, SJTW, or the equivalent that is oil andweather resistant in

33、 accordance with the National Electrical Code, ANSI/NFPA 70, and theCanadian Electric Code, Part I, CSA C22.1.101.DV DR Add Figure 101.DV to this Part 2:This is generated text for figtxt.KDV.1 DR Modification: Add the following to Annex K of the Part 2:For a battery-operated top-handle chain saw, th

34、e requirements in this annex and in Annex101.DVA apply.KDV.2 DR Modification: Add the following to Annex K of the Part 2:For a battery-operated pruning saw, the requirements in this annex and in Annex 101.DVBapply.MAY 15, 2015NATIONAL DIFFERENCES FOR UL UL 60745-2-136UL COPYRIGHTED MATERIAL NOT AUTH

35、ORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAADV D1 Addition: Add Clauses 5 and 6 to Annex AA of this Part 2:This is generated text for figtxt.This is generated text for figtxt.MAY 15, 2015 NATIONAL DIFFERENCES FOR UL UL 60745-2-13 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED

36、 FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL101.DVA.1 DR Add a new Annex as follows:101.DVA.1.1 Apply Clause K.1 of the Part 2 and the following:This annex applies to hand-held battery tool top handle chain saws intended for use byone person and for general use applications su

37、ch as limbing, clearing, pruning, andcutting firewood and having a dry weight not greater than 5 kg with the battery installed.NOTE In various standards referenced in this Part 2, top handle chain saws are alsoreferred to as tree service saws.101.DVA.1.2 Apply Clause 2 of the Part 2 and the followin

38、g:ISO 13772:2009Forestry machinery Portable chain-saws Non-manually actuated chain brakeperformanceISO 8334: 2007Forestry machinery Portable chain saws Determination of balance and maximumholding moment6 Always use two hands when operating the chain saw.MAY 15, 2015NATIONAL DIFFERENCES FOR UL UL 607

39、45-2-138UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL101.DVA.1.3 Apply Clause 3 of the Part 2 and the following:101.DVA.1.3.1 non-manually activated chain brake: a chain brake that is actuated bykickback energy without any manual activation

40、101.DVA.1.3.2 top handle chain saw: a chain saw with a rear handle arranged over the topof the saw body (see Figure 101.DVA.1.1).101.DVA.1.3.3 guide bar nose radius: a radius that is formed continuously at the topportion of the guide bar. The radius is measured from the centerline of the bar to an

41、angle35 above the centerline (see Figure 101.DVA.1.1).101.DVA.1.4 Apply Clause 19.103 of the Part 2 and the following:This requirement may also be fulfilled by other parts of the chain saw.101.DVA.1.5 Replace Clause 19.107 of the Part 2 with the following and apply:The chain saw chain brake shall be

42、 actuated non-manually.Compliance is checked by the non-manually actuated chain brake performance of ISO13772 and shall be demonstrated to activate at the threshold levels specified in Figure 1a)of ISO 13772.101.DVA.1.6 Apply Clause 19.107.2 of the Part 2 and the following added to the firstparagrap

43、h:The release force shall be not more than 50 N and not less than 20 N for top handle chainsaws.101.DVA.1.7 Apply Clause 19.108 of the Part 2 and replace the first paragraph with thefollowing:Chain saws shall have a computed kickback angle or chain stop angle, whichever is less,not exceeding 25. A b

44、ar tip guard, even if it is not removable (riveted, spot welded, etc.),shall be removed for testing.The chain brake stopping time, which is required to calculate the chain stop angle, may bedetermined by the test of 19.107.1 or, for chain saws that do not implement the chain brakeby the front hand g

45、uard, the pendulum test is replaced by any test arrangement suitable tomeasure the time from the moment the simulated kickback is detected by the non-manuallyactivated chain brake until the saw chain has stopped.MAY 15, 2015 NATIONAL DIFFERENCES FOR UL UL 60745-2-13 9UL COPYRIGHTED MATERIAL NOT AUTH

46、ORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL101.DVA.1.8 Replace Clause 19.112 of the Part 2 with the following and apply:BalanceChain saws shall be in longitudinal balance.Compliance is checked by the following test in accordance with longitudinal balance atrear handle f

47、or chain-saws for tree service in ISO 8334.The chain saw shall be fitted with a guide bar and saw chain with the dimensionsrecommended by the manufacturer. The chain saw shall be fitted with the lightestdetachable battery pack specified in 8.12.2. The oil tank shall be half full. The spikedbumper sh

48、all be fitted.During the test, the battery pack shall be installed in the tool.The angle between the centreline of the guide bar and the horizontal plane shall notexceed 25.Lateral (Sideways) BalanceTop handle chain saws shall have lateral balance. During the test, the battery pack shall beinstalled

49、 in the tool.Compliance is checked by the lateral balance at rear handle for chain-saws for tree servicetest of ISO 8334.The balance angle between the plane of the guide bar and the vertical shall be 0 10.During the test, the battery pack shall be installed in the tool.101.DVA.1.9 Apply Clause 19.113 of the Part 2 and the following:The test can be conducted using an external power source at the supplied battery voltage.101.DVA.1.10 Apply the following:Guide bar nose radiusThe guide bar nose radius shall have a nose radius not greater t