SANS 60745-2-12-2009 Hand-held motor-operated electric tools - Safety Part 2-12 Particular requirements for concrete vibrators《手持式电动工具 安全 第2-12部分 对混凝土振动器的特殊要求》.pdf

《SANS 60745-2-12-2009 Hand-held motor-operated electric tools - Safety Part 2-12 Particular requirements for concrete vibrators《手持式电动工具 安全 第2-12部分 对混凝土振动器的特殊要求》.pdf》由会员分享，可在线阅读，更多相关《SANS 60745-2-12-2009 Hand-held motor-operated electric tools - Safety Part 2-12 Particular requirements for concrete vibrators《手持式电动工具 安全 第2-12部分 对混凝土振动器的特殊要求》.pdf（16页珍藏版）》请在麦多课文档分享上搜索。

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-23269-6 SANS 60745-2-12:2009Edition 2.1IEC 60745-2-12:2008Edition 2.1 SOUTH AFRICAN NATIONAL STANDARD Hand-held motor-operated electric to

4、ols Safety Part 2-12: Particular requirements for concrete vibrators This national standard is the identical implementation of IEC 60745-2-12:2008 and is adopted with the permission of the International Electrotechnical Commission. WARNING Can only be used in conjunction with SANS 60745-1. Published

5、 by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 60745-2-12:2009 Edition 2.1 IEC 60745-2-12:2008 Edition 2.1 Table of changes Change No. Date Scope IEC amdt 1 2008 Amended to cover the safety of

6、concrete vibrators, to change the text on concrete vibrators, moisture resistance, abnormal operation, mechanical strength, construction, supply connection and external flexible cords, and to change annexes K and L. National foreword This South African standard was approved by National Committee SAB

7、S TC 72, Safety of electrical appliances and electronic equipment, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document, by reference, forms part of the Compulsory specification for electrical and electronic apparatus,

8、as published by Government Notice No. R. 89 (Government Gazette 31844) of 6 February 2009. This SANS document was published in November 2009. This SANS document supersedes SANS 60745-2-12:2003 (edition 2). IEC 60745-2-12Edition 2.1 2008-07INTERNATIONAL STANDARD NORME INTERNATIONALEHand-held motor-op

9、erated electric tools Safety Part 2-12: Particular requirements for concrete vibrators Outils lectroportatifs moteur Scurit Partie 2-12: Rgles particulires pour les vibreurs bton INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CBICS 25.140.20 PRICE CODECODE PRIXI

10、SBN 2-8318-9868-4 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale SANS 60745-2-12:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 2 60745-2-12 IEC:2003+A

11、1:2008 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS SAFETY Part 2-12: Particular requirements for concrete vibrators FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrot

12、echnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specificati

13、ons, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International,

14、 governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decis

15、ions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for intern

16、ational use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In ord

17、er to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be cle

18、arly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability sha

19、ll attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including leg

20、al fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this pub

21、lication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60745-2-12 has been prepared by subcommittee 61F: Safe

22、ty of hand-held, motor-operated electric tools, of IEC technical committee 61: Safety of household and similar electrical appliances. Main changes include Clause 3: Definitions, moving the description for the tools covered by this standard from Clause 1:Scope to the definitions, Clause 24: Supply co

23、nnection and external flexible cords, in respect to minimum cable specifications and length. Other requirements have not substantially been changed, but partly reworded and moved to more appropriate clauses. This consolidated version of IEC 60745-2-12 consists of the second edition (2003) documents

24、61F/511/FDIS and 61F/522/RVD and its amendment 1 (2008) documents 61F/737/FDIS and 61F/757/RVD. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. SANS 60745-2-12:2009This s tandard may only be used and printed by approved s

25、ubscription and freemailing clients of the SABS .60745-2-12 IEC:2003+A1:2008 3 It bears the edition number 2.1. A vertical line in the margin shows where the base publication has been modified by amendment 1. The French version of this standard has not been voted upon. This publication has been draf

26、ted in accordance with the ISO/IEC Directives, Part 2. This Part 2-12 is to be used in conjunction with the third edition of IEC 60745-1: Safety of hand-held motor-operated electric tools Part 1: General requirements. When this standard states “addition”, “modification” or “replacement”, the relevan

27、t text in Part 1 is to be adapted accordingly. With amendment 1, this Part 2 is established on the basis of the fourth edition (2006) of IEC 60745-1, Hand-held motor-operated electric tools Safety Part 1: General requirements. Main changes include editorial modifications to match with the fourth edi

28、tion of IEC 60745-1 and clarifications in Annex K. NOTE In this standard, the following print types are used: requirements: in roman type; test specifications: in italic type; notes: in smaller roman type. Subclauses, tables and figures which are additional to those in Part 1 are numbered starting f

29、rom 101; additional annexes are lettered AA, BB, etc. IEC 60745 consists of the following parts, under the general title Hand-held motor-operated electric tools Safety: Part 1: General requirements Part 2-1: Particular requirements for drills and impact drills Part 2-2: Particular requirements for s

30、crewdrivers and impact wrenches Part 2-3: Particular requirements for grinders, polishers and disk-type sanders Part 2-4: Particular requirements for sanders and polishers other than disk type Part 2-5: Particular requirements for circular saws and circular knives Part 2-6: Particular requirements f

31、or hammers Part 2-7: Particular requirements for spray guns for non-flammable liquids Part 2-8: Particular requirements for shears and nibblers Part 2-9: Particular requirements for tappers Part 2-11: Particular requirements for reciprocating saws (jig and sabre saws) Part 2-12: Particular requireme

32、nts for concrete vibrators Part 2-13: Particular requirements for chain saws Part 2-14: Particular requirements for planers Part 2-15: Particular requirements for hedge trimmers Part 2-16: Particular requirements for tackers Part 2-17: Particular requirements for routers and trimmers Part 2-18: Part

33、icular requirements for strapping tools Part 2-19: Particular requirements for jointers Part 2-20: Particular requirements for band saws Part 2-21: Particular requirements for drain cleaners SANS 60745-2-12:2009This s tandard may only be used and printed by approved subscription and freemailing clie

34、nts of the SABS . 4 60745-2-12 IEC:2003+A1:2008 The committee has decided that the contents of the base publication and its amendments will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication.

35、At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. SANS 60745-2-12:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .60745-2-12 IEC:2003+A1:2008 5 HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS

36、 SAFETY Part 2-12: Particular requirements for concrete vibrators 1 Scope This clause of Part 1 is applicable, except as follows: Addition: This standard applies to concrete vibrators. 2 Normative references This clause of Part 1 is applicable. 3 Terms and definitions This clause of Part 1 is applic

37、able, except as follows: 3.2.9 Replacement: normal load load obtained when the tool is operated continuously, the hose and vibrator bottle being attached to the tool as for normal use. During the operation the vibrator bottle is immersed centrally in a container filled with an amount of water corres

38、ponding to at least 50 times the volume of the vibrator bottle. The dimensions of the container are such that the diameter is about 50 % of the height of the water inside the container. The height of the container is such that no water can splash out during the test. Addition: 3.101 concrete vibrato

39、r tool intended for compacting concrete. The active part (vibrator bottle) of the vibrator performs low-amplitude vibrations and is immersed into the mass of concrete to be vibrated. Concrete vibrators may be of one of the following designs: a) the motor and the vibrating mechanism are inside the vi

40、brator bottle to which the part containing the mains switch or a power converter and switch handle assembly is connected by means of a long flexible hose containing the interconnecting cable. The long flexible hose may be used as the handle (see Figure 101); b) only the vibrator mechanism is inside

41、the vibrator bottle to which a separate portable unit, comprising the motor, the handle and the mains switch, is connected by means of a long flexible hose containing a flexible shaft (see Figure 102) SANS 60745-2-12:2009This s tandard may only be used and printed by approved subscription and freema

42、iling clients of the SABS . 6 60745-2-12 IEC:2003+A1:2008 4 General requirements This clause of Part 1 is applicable. 5 General conditions for the tests This clause of Part 1 is applicable. 6 Void 7 Classification This clause of Part 1 is applicable. 8 Marking and instructions This clause of Part 1

43、is applicable. 9 Protection against access to live parts This clause of Part 1 is applicable. 10 Starting This clause of Part 1 is applicable, except as follows: 10.1 Addition: The test is made at an ambient temperature of (10 1) C after the concrete vibrator has been kept at this temperature for at

44、 least 2 h. 11 Input and current This clause of Part 1 is applicable. 12 Heating This clause of Part 1 is applicable, except as follows: 12.4 Replacement: The tool is operated at normal load for 30 min. The temperature rises are measured at the end of the 30 min. 13 Leakage current This clause of Pa

45、rt 1 is applicable. SANS 60745-2-12:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .60745-2-12 IEC:2003+A1:2008 7 14 Moisture resistance This clause of Part 1 is applicable, except as follows: 14.1 Replacement of the first paragraph: For

46、design a) as defined in 3.101, the enclosure of all parts and the cable entry shall be IPX7. During the relevant test of this subclause, the part containing the switch or the power converter and switch handle assembly is placed in the normal position of use, the hose, if any, being attached correctl

47、y to it. For design b) as defined in 3.101, the motor unit shall be IPX4. During the relevant test of this subclause, the motor unit is placed in the most unfavourable position occurring during normal use. The isolating transformer or the motor-generator shall be IPX4. 15 Electric strength This clau

48、se of Part 1 is applicable. 16 Overload protection of transformers and associated circuits This clause of Part 1 is applicable. 17 Endurance This clause of Part 1 is applicable, except as follows: 17.2 Replacement: The tool is operated under the conditions specified for normal load for two periods o

49、f 12 h at 1,1 times rated voltage and for two periods of 12 h at 0,9 times rated voltage. The resting time between each of these periods of 12 h shall be at least 2 h. The tool may be switched on and off by means of a switch other than that incorporated in the tool. During this test, replacement of the carbon brushes is allowed, and the tool is oiled and greased as in normal use. If the temperature rise of any part of the tool exceeds the temperature rise determined during the test of