BS EN 50144-2-13-2002 Safety of hand-held electric motor operated tools - Particular requirements for chain saws《手持电动工具的安全性 链锯的特殊要求》.pdf

1、Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003, Uncontrolled Copy, (c) BSIBRITISH STANDARD BS EN 50144-2-13: 2002 Safety of hand-held electric motor operated tools Part 2-13: Particular requirements for chain saws The European Standard EN 50144-2-13:2002 has

2、the status of a British Standard ICS 25.140.20; 91.080.40 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003, Uncontrolled Copy, (c) BSIBS EN 50144-2-13:2002 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and

3、 Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 17 December 2002 BSI 17 December 2002 ISBN 0 580 40959 7 National foreword This British Standard is the official English language version of EN 50144-2-13:2002. It supersedes BS 2769-2-12:1991 wh

4、ich will be withdrawn on 2004-01-01. The UK participation in its preparation was entrusted by Technical Committee CPL/61, Safety of household and similar electrical appliances, to Subcommittee CPL/61/6, Portable motor-operated tools, which has the responsibility to: A list of organizations represent

5、ed on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”,

6、 or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer

7、immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate

8、them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 28, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication A

9、md. No. Date Comments Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 50144-2-13 NORME EUROPENNE EUROPISCHE NORM September 2002 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Nor

10、malisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50144-2-13:2002 E ICS 25.140.20; 91.080.4

11、0 Supersedes HD 400.3L S2:1988 English version Safety of hand-held electric motor operated tools Part 2-13: Particular requirements for chain saws Scurit des outils lectroportatifs moteur Partie 2-13: Rgles particulires pour les scies chanes Sicherheit handgefhrter motorbetriebener Elektrowerkzeuge

12、Teil 2-13: Besondere Anforderungen fr Kettensgen This European Standard was approved by CENELEC on 2001-01-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any

13、alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made

14、by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany,

15、 Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003, Uncontrolled Copy, (c) BSIEN 50144-2-13:2002 - 2 - Foreword T

16、his European Standard has been prepared by Technical Committee TC 61F, Hand-held and transportable electric motor operated tools. A first draft was submitted to the Unique Acceptance Procedure (UAP) in August 1996. A second draft was submitted to the formal vote in September 2000 and was approved by

17、 CENELEC as EN 50144-2-13 on 2001-01-01. This European Standard supersedes HD 400.3L S2:1988. The following dates were fixed: - latest date by which the EN has to be implemented at a national level by publication of an identical national standard or by endorsement (dop) 2003-04-01 - latest date by w

18、hich the national standards conflicting with the EN have to be withdrawn (dow) 2004-01-01 This standard is divided into two parts: Part 1: General requirements which are common to most hand-held electric motor operated tools (for the purpose of this standard referred to simply as tools). Part 2: Req

19、uirements for particular types of tool which either supplement or modify the requirements given in Part 1 to account for the particular hazards and characteristics of these specific tools. This European Standard has been prepared under a mandate given to CEN/CENELEC by the European Commission and th

20、e European Free Trade Association and supports the essential health and safety requirements of the Machinery Directive. Compliance with the clauses of Part 1 together with this part 2 provides one means of conforming with the essential health and safety requirements of the Directive. As with any sta

21、ndard, technical progress will be kept under review so that any developments can be taken into account. CEN/TC 114 is producing standards for petrol engined chain saws (EN 608). Warning: Other requirements and other EC Directives can be applicable to the products falling within the scope of this sta

22、ndard. This standard follows the overall requirements of EN 292-1 and EN 292-2. Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101. NOTE In this standard the following print types are used: - Requirements proper; - Test specifications; - Explanatory

23、 matter. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003, Uncontrolled Copy, (c) BSI- 3 - EN 50144-2-13:2002 Contents 1 Scope 4 2 Definitions4 3 General requirements.5 4 General conditions for the tests 5 5 Rating5 6 Classification .5 7 Marking and information

24、 for use.6 8 Protection against electric shock 7 9 Starting .8 10 Input and current8 11 Heating 8 12 Leakage current .8 13 Environmental requirements.8 14 Moisture resistance. 9 15 Insulation resistance and electric strength . 9 16 Endurance 9 17 Abnormal operation. 9 18 Mechanical hazards .10 19 Me

25、chanical strength .14 20 Construction.15 21 Components 16 22 Internal wiring 16 23 Supply connection and external flexible cables and cords .16 24 Terminals for external conductors.16 25 Provision for earthing .16 26 Screws and connections.16 27 Creepage distances, clearances and distances through i

26、nsulation 16 28 Resistance to heat, fire and tracking.16 29 Resistance to rusting16 30 Radiation .16 Annexes28 Figure 101 Usable cutting length 17 Figure 102 Description of felling: undercutting .17 Figure 103 Description of felling: escape routes18 Figure 104 Impact test apparatus 18 Figure 105 Cle

27、arance at and below switch actuator 19 Figure 106 Clearance behind switch actuator 19 Figure 107 Handle clearances and dimension requirements .20 Figure 108 Front handle clearance and distance between front and rear handle .21 Figure 109 Dimensions and clearances of front hand guard .22 Figure 110 T

28、est probe .22 Figure 111 Chain catcher 23 Figure 112 Dynamic test of chain catcher 23 Figure 113 Chain brake test and dynamic test of front hand guard .24 Figure 114 Handle gripping area .25 Figure 115 Application of loads for handle strength test25 Figure 116 Dynamic test of rear hand guard: princi

29、ple26 Figure 117 Dynamic test of rear hand guard: impact point .26 Figure 118 Accelerometer positions .27 Table 101 Test conditions for chain saws .9 Table 102 Clearance dimensions of handles 10 Table 103 Dimensions and clearances in Figure 109 .11 Table 104 Handle strength test loads 14 Licensed Co

30、py: Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003, Uncontrolled Copy, (c) BSIEN 50144-2-13:2002 - 4 - 1 Scope This clause of Part 1 is applicable except as follows: 1.1 Addition: This standard applies to chain saws but does not apply to chain saws operated by two persons a

31、nd to pole cutters and pruners. This standard does not give requirements for the design of the tool to reduce the risks arising from noise and vibration. 2 Definitions This clause of Part 1 is applicable except as follows: 2.2.18 Replacement: 2.2.18 normal load load obtained when the chain saw is op

32、erated continuously, the load being such that the input, in watts, is equal to rated input and will be measured using the rated voltage or on the upper limit of the rated voltage range Additional definitions: 2.101 chain saw electric tool which is intended for cutting wood by means of the saw chain

33、supported by a guide bar 2.102 chain brake device for stopping or locking the saw chain operated manually or automatically when kick-back occurs 2.103 drive sprocket the toothed part that drives the saw chain 2.104 front handle support handle located at or towards the front of the motor housing 2.10

34、5 guide bar the part that supports and guides the saw chain 2.106 kickback upward and/or backward motion of the guide bar that may occur when the nose of the saw chain, unexpectedly contacts an object 2.107 rear handle the support handle located at or toward the rear of the chain saw Licensed Copy:

35、Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003, Uncontrolled Copy, (c) BSI- 5 - EN 50144-2-13:2002 2.108 saw chain loop of chain having cutting teeth that is driven by the motor and is supported by the guide bar 2.109 spiked bumper part fixed to the casing, parallel to the

36、guide-bar used as a pivot whilst sawing 2.110 usable cutting length the distance measured along the guide bar axis from the root of the spiked bumper to the tip of the nose with the chain tension adjuster set at mid position. In the case of the chain saw fitted with a nose guard, measured from the r

37、oot of the spiked bumper to the rear edge of the nose guard (see Figure 101) 2.111 chain catcher device for restraining the saw chain if it breaks or derails 2.112 run down time the elapsed time from the release of the main switch until the saw chain stops 3 General requirements This clause of Part

38、1 is applicable. 4 General conditions for the tests This clause of Part 1 is applicable except as follows: 4.2 Addition: For the tests of Clauses 13 and 18 additional samples may be provided. 4.10 Addition: For tests carried out at normal load, the chain and bar may be removed and the driving wheel

39、of the saw chain loaded by means of a brake. 5R a t i n g This clause of Part 1 is applicable. 6 Classification This clause of Part 1 is applicable except as follows: Modification: Class I tools are not allowed. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003,

40、 Uncontrolled Copy, (c) BSIEN 50144-2-13:2002 - 6 - 7 Marking and information of use This clause of Part 1 is applicable except as follows: 7.1 Addition: Chain saw shall be marked with: - maximum cutting length, in millimetres as shown in Figure 107; - indication of direction of rotation of the saw

41、chain; this shall be clearly indicated by an arrow, raised or sunk, or by any other means no less visible and indelible. In addition, chain saws shall be marked with a warning of the following substance or symbols: They shall be written in one of the official language(s) of the country in which the

42、chain saw is to be sold. - Read the instructions - Do not expose to rain For splash-proof or watertight chain saws this warning need not be marked on the electric tool itself. - Remove plug from the mains immediately if cable is damaged or cut 7.13.1 Addition: - adjustment and correct operation of a

43、utomatic and manual chain oilers; - adjustment of chain tension and chain brake functioning; - instructions on chain sharpening; - kickback causes, effects and safety precaution; - holding the saw in use, stance, access to work, cutting height; - advice not to use the chain saw above shoulder height

44、; - advice on the need to hold the chain saw with both hands; Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 20 March 2003, Uncontrolled Copy, (c) BSI- 7 - EN 50144-2-13:2002 - cutting branches, logging, supporting the log, effect of sloping ground; - avoidance of cutting

45、into ground, wire fences, cutting saplings, cutting prepared timber; - felling: a short description with illustrations of safe procedures: felling within the capabilities of the saw, undercutting to control direction of fall (see Figure 102), preparation and use of escape routes (see Figure 103), re

46、striction of access to danger zones, use of wedges, reference to weather and onlookers and to local by-laws; - advice on appropriate personal protective equipment (e.g. for head, eyes, ears, body, hands, legs, feet). 7.13.2 Addition: - a recommendation that the first time user should have practical

47、instruction in the use of the chainsaw and the protective equipment from an experienced operator and that the initial practice should be cutting logs on a saw horse or cradle; - recommendation for the use of a residual current device. 8 Protection against electric shock This clause of Part 1 is appl

48、icable except as follows: 8.101 Addition: For chain saws other than those of class III, handles shall be either of insulating material or of metal having a fixed insulated covering complying with the requirements of 15.3 for supplementary insulation. The handles shall be so designed that, when held

49、as in normal use, the risk of any part of a users hand coming into contact with metal parts which are in electrical contact with the saw chain is obviated. Compliance is checked by inspection and by the tests of 15.3, applied to the handles and carried out after the test specified in 19.3. Moreover the covering of insulation material of metal handles shall comply with the following test: A sample of the covered part is conditioned at a tempera