1、CAN/CSA-C22.2 No. 745-2-31-95A National Standard of Canada(reaffirmed 2014)Safety of portable electric tools Part 2: Particular requirements for diamond core drillsLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards dev
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18、ponsibility for approving standards as National Standards of Canada rests with theStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaCette Norme nationale du Canada est offerte en anglais et en franais.Although the intended primary application of this Standard is st
19、ated in its Scope, it is importantto note that it remains the responsibility of the users to judge its suitability for their particular purpose.TMA trade-mark of the Canadian Standards Association, operating as “CSA Group”Canadian Standards Association CAN/CSA-C22.2 No. 745-2-31 First Edition Underw
20、riters Laboratories Inc. UL 745-2-31 First Edition Particular Requirements for Diamond Core Drills March 23, 1995 Approved by Standards Council of Canada Commitment for Amendments This Standard is issued jointly by Canadian Standards Association and Underwriters Laboratories Incorporated. Amendments
21、 to this Standard will be made only after processing according to the Standards writing procedures by both Canadian Standards Association and Underwriters Laboratories Incorporated. ISSN 0317-5669 ISBN 1-55989-777-5 Copyright 1995 Canadian Standards Copyright 1995 Underwriters Association Laboratori
22、es Incorporated Inc. All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior permission of the publisher. March 23, 1995 CSA-C22.2 No. 745-2-31 UL 745-2-31 3 Contents Preface 5 Foreword (CSA) 7 Foreword (UL) 9
23、11 2 Definitions 11 3. General requirement 11 4. General notes on tests 11 5 Rating 11 8:c.ESlfkatk . .M.atk.frS 8 9:EStfr9 iOD1IIIWa1d.cUfrreInt 1:1HEitii19 16. .EidUranc 17. Abnormal operation 18. Mectianilhzard 1tMhiaL strength 20. Construction 21. Internal wirIng 22. bmpohents 11 12 12 12 12 12
24、12 12 12 12 12 12 12 13 13 13 13 4 CSA-C22.2 No. 745-2-31 UL 745231 March 23, 1995 fl. Supply connection and external flexible cbleS.and cords 13 24. Terminals for external conductors 13 25. Provision for earthing 13 26:Screws and connections 13 27. creepaeda es,.i:deara IQS and disti4ces through in
25、sUlation 13 28. Resistance to heM, fire indfrbking 13 29. ResiStince to rusting. 13 3O.Tests by Manufacturers 14 31.: instructions 14 Appendix A Thermal cut.outs and overload releases 15 Apndix: B Electronic circuits 15 AppendfrlC Construction of safety isolating transformers 15 Appendix:D t:Measure
26、ment of creepage distances and cf earances 15 Appendix.E Rfernce. standards 15 Appendix F Attachments and accessones 15 Appendix C Seq ueh.l4i.tests 15 Appendix 11 Translations 15 March 23, 1995 CSA-C22.2 No. 745-2-31 UL 745-2-31 5 Preface This is the common CSA and UL Standard for portable electric
27、 diamond core drills. It is the first edition of CSA Standard CANICSA-C22.2 No. 745-2-31, Safety of portable electric tools Part 2: Particular requirements for diamond core drills and UL 745-2-31, Safety of portable electric tools Part. 2: Particular requirements for diamond core drills. It is writt
28、en in SI (metric) units. It will coexist with the CSA Standard CANICSA-C22.2 No. 71.1 for the period given in CSA Certification Notice Electrical Tools No. 6. This Standard was prepared by the Canadian Standards Association and Underwriters Laboratories Inc. It contains particular requirements and i
29、s intended to be used in conjunction with the general Standard CAN/CSA-C22.2 No. 745-1/UL 745-1. Where a clause of the general Standard (CAN/CSA-C22.2 No. 745-1/UL 745-1) is not mentioned in this Standard, the clause applies as far as is reasonable. Where this particular Standard states addition, mo
30、dification, or replacement, the relevant requirement, test specification, or explanatory matter in the general Standard (CAN/CSA-C22.2 No. 745-1/UL 745-1) should be adapted accordingly. If the functions of a tool are covered by dferent particular Standards, the relevant particular Standard is applie
31、d to each function separately, so far as is reasonable. If applicable, the influence of one function on the other is taken into account. This Standard was reviewed by the CSA Subcommittee on Portable Electric Tools of the Technical Committee on Consumer and Commercial Products under the jurisdiction
32、 of the Standards Steering Committee on the Canadian Electrical Code, Part Il, and was formally approved by these Committees. This Standard was processed and reviewed in accordance with the method of development, revision, and implementation of UL Standards for safety. This Standard has been approve
33、d by the Standards Council of Canada as a National Standard of Canada and it will be submitted to the American National Standards Institute (ANSI) for publication as an American National Standard. March 23, 1995 UL Effective Date As of June 1, 2007, all products Listed or Recognized by UL must compl
34、y with the requirements in this Standard. Between June 1, 2002 and June 1, 2007, new product submittals to UL must be evaluated under all requirements in this standard. Between March 23, 1995 and June 1, 2002, new product submittals to UL may be evaluated under all requirements in this Standard or,
35、it requested in writing, evaluated under presently effective requirements only. The presently effective requirements are contained in the seventh edition of UL 45. CSA Effective Date The effective date for CSA will be announced through CSA Certification Notice Electrical Tools No. 6. Note: Although
36、the intended primaly application of this Standard is stated in its Scope, ft is important to note that ft remains the responsibility of the users of the Standard to judge its suitability for their particular purpose. 6 CSA-C22.2 No. 745-2-31 UL 745-2-31 March 23, 1995 March 23, 1995 CSA-C22.2 No. 74
37、5-2-31 IJL 745-2-31 7 Foreword (CSA) Certification organizations, as accredited by the Standards Council of Canada, have their own criteria procedures for certification services. The following paragraphs define CSA Certification policies. The Canadian Standards Association provides certification ser
38、vices for manufacturers who, under license from CSA, wish to use the appropriate registered CSA Marks on certain products of their manufacture to indicate conformity with CSA Standards. CSA Certification for a number of products is provided in the interest of maintaining agreed-upon standards of qua
39、lity, performance, interchangeability and/or safety, as appropriate. Where applicable, certification may form the basis for acceptance by inspection authorities responsible for enforcement of regulations. Where feasible, programs will be developed for additional products for which certification is d
40、esired by producers, consumers or other interests. In performing its functions in accordance with its objectives, CSA does not assume or undertake to discharge any responsibility of the manufacturer or any other party. The opinions and findings of the Association represent its professional judgement
41、 given with due consideration to the necessity limitations of practical operation and state of the art at the time the Standard is processed. Products in substantial accord with this Standard but which exhibit a minor difference or a new feature may be deemed to meet the Standard providing the featu
42、re or difference is found acceptable utilizing appropriate CSA Certification Division Operating Procedures. Products which comply with this Standard shall not be certified if they are found to have additional features which are inconsistent with the intent of this Standard. Products shall not be cer
43、tifiable if they are discovered to contravene applicable Federal laws or regulations. Testing techniques, test procedures and instrumentation frequently must be prescribed by the CSA Certification Division in addition to the technical requirements contained in Standards of CSA. In addition to markin
44、gs specified in the Standard the CSA Certification and Testing Division may require special cautions, markings and instructions that are not specified by the Standard. Some tests required by CSA Standards may be inherently hazardous. The Association neither assumes nor accepts any responsibility for
45、 any injury or damage that may occur during or as the result of tests, wherever performed, whether performed in whole or in part by the manufacturer or the Association, and whether or not any equipment, facility or personnel for in connection with the test is furnished by the manufacturer or the Ass
46、ociation. Manufacturers should note that, in the event of the failure of the CSA Certification and Testing Division to resolve an issue arising from the interpretation of requirements, there is an appeal procedure: the complainant should submit the matter, in writing, to the Secretary of the Canadia
47、n Standards Association. If this Standard is to be used in obtaining CSA Certification please remember, when making application for certification, to request all current Amendments, Bulletins, Notices and Technical Information Letters that may be applicable and for which there may be a nominal charg
48、e. For such information or for further information concerning details about CSA Certification please address your inquiry to the Applications and Records Section, Canadian Standards Association, 178 Rexdale Boulevard, Rexdale (Toronto), Ontario M9W 1R3. March 23, 1995 CSA-C22.2 No. 745-2-31 UL 745-2
49、-31 9 Foreword (UL) A. This Standard contains basic requirements for products covered by Underwriters Laboratories Inc. (UL) under its Follow-Up Service for this category within the limitations given below and in the Scope section of this Standard. These requirements are based upon sound engineering principles, research, records of tests and field experience, a
