BS IEC 61942-2002 Live working - Gloves and mitts with mechanical protection《带电作业 机械防护手套》.pdf

1、BRITISH STANDARD BS IEC 61942:1997 Live working Gloves and mitts with mechanical protection ICS 13.260; 29.260.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS IEC 61942:1997 This British Standard, having been prepared under the direction of the Electrotechnical Sector Pol

2、icy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 25 April 2002 BSI 25 April 2002 ISBN 0 580 39438 7 National foreword This British Standard reproduces verbatim IEC 61942:1997 including Corrigendum No. 1:2000 and implements it as the UK n

3、ational standard. The UK participation in its preparation was entrusted to Technical Committee PEL/78, Tools for live working, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications

4、 have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implemen

5、t international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport

6、to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internationa

7、l/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 them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the IEC title p

8、age, pages 2 to 49 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsNORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 61942 Premiredition Firstedition 199708 Travauxsoustension

9、 Gantsetmouflesavecprotectionmcanique Liveworking Glovesandmittswithmechanicalprotection Numroderfrence Referencenumber CEI/IEC61942:1997BS IEC 61942:1997 2 BSI 25 April 2002 CONTENTS Page FOREWORD. 4 INTRODUCTION . 5 Clause 1 Scope. 6 1.1 Classes of gloves 6 1.2 Categories of gloves 6 2 Normative r

10、eferences . 6 3 Definitions 7 3.1 Terms defined in accordance with IEC 60050(121), IEC 60050(151), IEC 60050(601) and ISO 472 7 3.2 Definitions of special terms used in this standard . 8 4 Composition . 8 5 Classification 9 6 Physical requirements. 9 6.1 Shape 9 6.2 Dimensions 9 6.3 Thickness 10 6.4

11、 Workmanship and finish. 10 6.5 Marking . 10 6.6 Packaging . 11 7 Tests on gloves 11 7.1 General . 11 7.2 Visual inspection and measurements . 12 7.3 Mechanical tests 13 7.4 Dielectric tests. 17 7.5 Ageing tests. 21 7.6 Thermal tests 21 8 Tests on gloves with special properties . 22 8.1 General . 22

12、 8.2 Category A Acid resistance . 22 8.3 Category H Oil resistance . 23 8.4 Category Z Ozone resistance 23 8.5 Category P Acid, oil and ozone 23 8.6 Category C Extreme low temperature 24BS IEC 61942:1997 BSI 25 April 2002 3 9 Quality assurance plan and acceptance test 24 9.1 General . 24 9.2 Categor

13、ies of test 24 9.3 Sampling procedure. 25 9.4 Acceptance tests . 25 Annexes A List and classification of tests . 39 B Oil for tests on gloves of category H Oil resistance. 40 C Sampling procedure 41 D Guidelines for the selection of the class of gloves in relation to nominal voltage of a system. 43

14、E Recommendations for in-service care . 44 F Typical glove dimensions 46 G Cotton canvas additional characteristics . 47 H Acceptance tests 49BS IEC 61942:1997 4 BSI 25 April 2002 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LIVE WORKING GLOVES AND MITTS WITH MECHANICAL PROTECTION FOREWORD 1) The IEC

15、 (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and

16、 electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmenta

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

18、agreements of the 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 National Committees. 3) The documents produced have the form of recommendations for internat

19、ional use and are published in the form of standards, technical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum exte

20、nt possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equ

21、ipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Sta

22、ndard IEC 61942 has been prepared by IEC technical committee 78: Live working. The text of this standard is based on the following documents: FDIS Report on voting 78/220+220A/FDIS 78/227/RVD Full information on the voting for the approval of this standard can be found in the report on voting indica

23、ted in the above table. Annexes A, B and C form an integral part of this standard. Annexes D, E, F, G and H are for information only.BS IEC 61942:1997 BSI 25 April 2002 5 INTRODUCTION This International Standard was established on the basis of IEC 60903 on insulating gloves. The same quality level o

24、f insulation was required as basic principle. The purpose was to combine in one unique glove the insulating properties of elastomer gloves and the mechanical properties of leather gloves which are commonly used to protect the insulating gloves. For the time being, only three classes of gloves are co

25、vered due to the lack of data and practice for high voltages. Some difficulties were observed when combining electrical and mechanical properties. It seems to be difficult to obtain flexible gloves providing adequate mechanical protection.BS IEC 61942:1997 6 BSI 25 April 2002 LIVE WORKING GLOVES AND

26、 MITTS WITH MECHANICAL PROTECTION 1 Scope This International Standard is applicable to insulating gloves and mitts made of plastic or elastomer with appropriate mechanical protection for use without over-gloves. Unless otherwise stated, the use of the term glove only includes gloves and mitts. The g

27、loves are intended to be used for working live or close to live parts at nominal voltages up to 7 500 V a.c. or 11 250 V d.c. For other voltages information is not yet available. 1.1 Classes of gloves Three classes of gloves, differing in electrical characteristics, are provided and are designated c

28、lass 00, class 0, class 1 (see annex D). For other classes such as class 2, class 3 and class 4 additional data will be necessary. 1.2 Categories of gloves Five categories of gloves, differing in properties related to acid, oil, ozone and a combination of all are provided and designated categories A

29、, H, Z and P respectively, and also extreme low temperature designated as category C. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indi

30、cated were valid. All normative documents are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative documents indicated below. Members of IEC and ISO maintain registers of

31、 currently valid International Standards. IEC 60050(121):1978, International Electrotechnical Vocabulary (IEV) Chapter 121: Electro- magnetism IEC 60050(151):1978, International Electrotechnical Vocabulary (IEV) Chapter 151: Electrical and magnetic devices IEC 60050(601):1985, International Electrot

32、echnical Vocabulary (IEV) Chapter 601: Generation, transmission and distribution of electricity General IEC 60060-1:1989, High-voltage test techniques Part 1: General definitions and test requirementsBS IEC 61942:1997 BSI 25 April 2002 7 IEC 60060-2:1994, High-voltage test techniques Part 2: Measuri

33、ng systems IEC 60212:1971, Standard conditions for use prior to and during the testing of solid electrical insulating materials IEC 60903:1988, Specifications for gloves and mitts of insulating material for live working IEC 61318:1994, Live working Guidelines for quality assurance plans ISO 37: 1994

34、, Rubber-vulcanized or thermoplastic Determination of tensile stress-strain properties ISO 2859-1:1999, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection ISO 472: 1988, Plastics Vocabulary ISO 2592: 1973, Pet

35、roleum products Determination of flash and fire points Cleveland open cup method ISO 2977: 1989, Petroleum products and hydrocarbon solvents Determination of aniline point and mixed aniline point ISO 3104: 1994, Petroleum products Transparent and opaque liquids Determination of kinematic viscosity a

36、nd calculation of dynamic viscosity ISO 9000-1: 1994, Quality management and quality assurance standards Part 1: Guidelines for selection and use 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 Terms defined in accordance with IEC 60050(121), IEC 6

37、0050(151), IEC 60050(601) and ISO 472 3.1.1 electrical puncture: A disruptive breakdown through a solid insulant. IEV 121-03-13 modified 3.1.2 flashover: An arc by-passing an insulating body and occurring between electrodes and over or around, but not through, the equipment being tested. IEV 121-03-

38、14 modified 3.1.3 type test: A test on one or more devices made to a certain design to show that the design meets certain specifications. IEV 151-04-15 3.1.4 routine test: A test to which each individual device is subjected during or after manufacture to ascertain whether it complies with certain cr

39、iteria. IEV 151-04-16 3.1.5 sampling test: A test on a number of devices taken at random from a batch. IEV 151-04-17 3.1.6 acceptance test: A contractual test to prove to the customer that the device meets certain conditions of its specification. IEV 151-04-20BS IEC 61942:1997 8 BSI 25 April 2002 3.

40、1.7 nominal voltage: A suitable approximate value of voltage used to identify a system. IEV 601-01-21 3.1.8 plastic: A material which contains as an essential ingredient a high polymer and which at some stage in its processing into finished products can be shaped by flow. ISO 472-1-2-22 3.2 Definiti

41、ons of special terms used in this standard 3.2.1 palm: Part of glove covering the face of the central inside hand. 3.2.2 wrist: The narrowest part of the glove above the cuff. 3.2.3 contour glove: A glove shaped at the upper part of the cuff in such a way as to facilitate the bending of the arm. 3.2

42、.4 fork: Part of glove at the junction of two fingers, or finger and thumb. 3.2.5 curved glove: A glove on which the fingers are slightly bent in a position corresponding to the position the hand forms while holding an object. 3.2.6 lined glove: A glove with an inside lining of textile attached to t

43、he plastic or to the elastomer. 3.2.7 composite glove: A glove composed of several attached or superimposed layers of different colours. 3.2.8 mitt: A glove which has less than four fingers enclosed. 3.2.9 cuff: Part of a glove from the wrist to the open part of the glove. 3.2.10 cuff roll: The roll

44、 or reinforced edge of a glove at the cuff. 3.2.11 elastomer: A generic term that includes rubbers, latex and elastomeric compounds that may be natural or synthetic or a mixture or a combination of both. 3.2.12 proof test voltage: The specified voltage that is applied to a device for the time define

45、d under specified conditions to assure that the electrical strength of the insulation is above a specified value. 3.2.13 withstand test voltage: The voltage that the device shall withstand without flashover, disruptive discharge, puncture or other electric failure when voltage is applied under speci

46、fied conditions. 4 Composition The gloves shall be manufactured of plastic or elastomer. They may be lined or unlined, uncovered or have an exterior covering for protection against mechanical wear, chemical attack, and the effects of ozone. The gloves shall be provided with a cuff.BS IEC 61942:1997

47、BSI 25 April 2002 9 5 Classification The gloves covered under this standard shall be designated as follows: by class as class 00, class 0, class 1; by special properties by the addition of a suffix as shown in table 1. Guidance as to use in relation to nominal voltage of a system is given in annex D

48、. Guidance as to temperature range at which gloves can be used is given in annex E. Table 1 Special properties Category Resistant to AA c i d HO i l Z Ozone P Acid, oil, ozone C Extreme low temperature NOTES 1 Category P combines the characteristics of categories A, H, and Z. 2 Any combination of ca

49、tegories may be used. 6 Physical requirements 6.1 Shape 6.1.1 The shape of a glove is indicated in figure 1. The letter “h“ in figure 1 represents the curve of the finger in curved gloves. The shape of a mitt is indicated in figure 2. 6.1.2 Gloves may be manufactured with or without cuff roll. 6.2 Dimensions 6.2.1 Length Class 00: standard lengths are 280 mm and 360 mm. Class 0: standard lengths are 280 mm, 360 mm, 410 mm and 460 mm. Class 1: standard le