SANS 61482-1-1-2009 Live working - Protective clothing against the thermal hazards of an electric arc Part 1-1 Test methods - Method 1 Determination of the arc rating (ATPV or EBT5带.pdf

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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 978-0-626-23200-9 SANS 61482-1-1:2009Edition 1IEC 61482-1-1:2009Edition 1SOUTH AFRICAN NATIONAL STANDARD Live working Protective clothing against th

4、e thermal hazards of an electric arc Part 1-1: Test methods Method 1: Determination of the arc rating (ATPV or EBT50) of flame resistant materials for clothing This national standard is the identical implementation of IEC 61482-1-1:2009 and is adopted with the permission of the International Electro

5、technical Commission. Published 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 61482-1-1:2009 Edition 1 IEC 61482-1-1:2009 Edition 1 Table of changes Change No. Date Scope National foreword This

6、 South African standard was approved by National Committee SABS SC 67E, Electricity distribution systems and components Electricity distribution, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in Aug

7、ust 2009. IEC 61482-1-1Edition 1.0 2009-05INTERNATIONAL STANDARD NORME INTERNATIONALELive working Protective clothing against the thermal hazards of an electric arc Part 1-1: Test methods Method 1: Determination of the arc rating (ATPV or EBT50) of flame resistant materials for clothing Travaux sous

8、 tension Vtements de protection contre les dangers thermiques dun arc lectrique Partie 1-1: Mthodes dessai Mthode 1: Dtermination de la caractristique darc (ATPV ou EBT50) de matriaux rsistant la flamme pour vtements INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONAL

9、E XICS 13.220.40; 29.260 PRICE CODECODE PRIXISBN 2-8318-1042-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale SANS 61482-1-1:2009This s tandard may only be used and printed by approved subscription and freemailing c

10、lients of the SABS . 2 61482-1-1 IEC:2009 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references .6 3 Terms, definitions and symbols 7 3.1 Terms and definitions 7 3.2 Symbols and units .11 4 Principle of the test methods 11 4.1 Test method A.11 4.2 Test method B.12 5 Significance and use of the test m

11、ethods12 6 Test apparatus .12 6.1 General .12 6.2 Method A Arrangement of the two-sensor panels13 6.3 Method A Panel construction 14 6.4 Method B Arrangement of the mannequins .15 6.5 Method B Mannequin construction17 6.6 Sensor response .18 6.7 Calorimeter construction18 6.8 Supply bus and electrod

12、es 20 6.8.1 General .20 6.8.2 Electrodes .21 6.8.3 Fuse wire 22 6.9 Electric supply.22 6.10 Test-circuit control.22 6.11 Data acquisition system.22 7 Precautions 22 8 Specimen preparation.23 8.1 Test specimens .23 8.1.1 Test specimens for method A: two-sensor panel test .23 8.1.2 Test specimens for

13、method B: four-sensor mannequin.23 8.2 Laundry conditioning of test specimens .23 9 Calibration23 9.1 Data acquisition system precalibration 23 9.2 Calorimeter calibration check 23 9.3 Arc exposure and apparatus calibration for the two-sensor panels and the monitoring sensors 24 9.3.1 Test apparatus

14、 24 9.3.2 Positioning of the two-sensor panels, mannequins and monitoring sensors .24 9.3.3 Apparatus calibration for the two-sensor panels and monitoring sensors .24 9.4 Confirmation of test apparatus setting .24 10 Test apparatus care and maintenance 25 10.1 Surface reconditioning.25 10.2 Care of

15、sensor panels and mannequins.25 10.3 Care of electrodes.25 SANS 61482-1-1:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61482-1-1 IEC:2009 3 11 Test procedures .25 11.1 Test parameters 25 11.2 Sequence of tests .25 11.2.1 Panels .25 11.

16、2.2 Mannequins.25 11.2.3 Test criteria .25 11.3 Initial temperature .26 11.4 Specimen mounting.26 11.4.1 Method A panels26 11.4.2 Method B mannequins .27 11.5 Specimen characteristics.27 11.6 Test protocol .28 12 Interpretation of results 28 12.1 Heat transfer .28 12.1.1 Determining time zero .28 12

17、.1.2 Plotting sensor response .28 12.1.3 Sensor response versus Stoll curve.30 12.1.4 Determination of heat attenuation factor (HAF)32 12.2 Determination of breakopen threshold energy, EBT50.33 12.3 Arc rating 33 12.4 Visual inspection .33 13 Test report34 Annex A (normative) Measurement of char len

18、gth36 Annex B (informative) Logistic regression technique 37 Annex C (informative) Heat attenuation factor39 Bibliography40 Figure 1 Method A Arrangement of three two-sensor panels with monitoring sensors (plan view).13 Figure 2 Method A Two-sensor panel (face view) with monitoring sensors 14 Figure

19、 3 Method A Sliding two-sensor panel .15 Figure 4 Supply bus and arc electrodes showing the position of mannequin(s) and monitoring sensors .16 Figure 5 Positioning of electrodes and monitoring sensors.17 Figure 6 Four-sensor mannequin, front view 18 Figure 7 Calorimeter and thermocouple details 19

20、Figure 8 Typical installation of the copper sensor mounted in the panel and the calorimeter mounted in the monitoring sensor.20 Figure 9 Example of supply bus and arc electrodes for panels .21 Figure 10 Typical material clamping assembly .27 Figure 11 Typical sensor temperature-rise curve with time

21、scale and baseline correction .29 Table 1 Human tissue tolerance to heat, second-degree burn 1 .31 Table A.1 Total tearing load.36 SANS 61482-1-1:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 4 61482-1-1 IEC:2009 INTERNATIONAL ELECTROT

22、ECHNICAL COMMISSION _ LIVE WORKING PROTECTIVE CLOTHING AGAINST THE THERMAL HAZARDS OF AN ELECTRIC ARC Part 1-1: Test methods Method 1: Determination of the arc rating (ATPV or EBT50) of flame resistant materials for clothing FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldw

23、ide organization for standardization comprising all national electrotechnical 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 act

24、ivities, IEC publishes International Standards, Technical Specifications, 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 subjec

25、t dealt with may participate in this preparatory work. International, 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 deter

26、mined by agreement between the two organizations. 2) The formal decisions 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 Commit

27、tees. 3) IEC Publications have the form of recommendations for international 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

28、they are used or for any misinterpretation by any end user. 4) In order 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 Publicatio

29、n and the corresponding national or regional publication shall be clearly 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

30、they have the latest edition of this publication. 7) No liability shall 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 natur

31、e whatsoever, whether direct or indirect, or for costs (including legal 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

32、publications is indispensable for the correct application of this publication. 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. Internationa

33、l Standard IEC 61482-1-1 has been prepared by IEC technical committee 78: Live working. This standard cancels and replaces IEC 61482-1:2002. It constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61482-1: addition of a detailed anal

34、ysis of the sensor response. SANS 61482-1-1:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61482-1-1 IEC:2009 5 The text of this standard is based on the following documents: FDIS Report on voting 78/793/FDIS 78/805/RVD Full information

35、on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 61482 series can be found, under the general title Live working Prote

36、ctive clothing against the thermal hazards of an electric arc, on the IEC website. The committee has decided that the contents of this publication 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 p

37、ublication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition; or amended. SANS 61482-1-1:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 6 61482-1-1 IEC:2009 LIVE WORKING PROTECTIVE CLOTHING AGA

38、INST THE THERMAL HAZARDS OF AN ELECTRIC ARC Part 1-1: Test methods Method 1: Determination of the arc rating (ATPV or EBT50) of flame resistant materials for clothing 1 Scope This part of IEC 61482 specifies test methods to measure the arc thermal performance value of materials intended for use in h

39、eat- and flame-resistant clothing for workers exposed to the thermal effects of electric arcs and the function of garments using these materials. These test methods measure the arc thermal performance value of materials which meet the following requirements: less than 100 mm char length and less tha

40、n 2 s afterflame after removal from flame, when tested in accordance with ISO 15025, procedure B (bottom-edge ignition) on the outer material, and the char length measured using a modified ISO method as described in Annex A. These methods are used to measure and describe the properties of materials,

41、 products, assemblies or garments, in response to convective and radiant energy generated by an electric arc in open air under controlled laboratory conditions. The materials used in these methods are in the form of flat specimens for method A and garments for method B. Method A is used to determine

42、 the arc rating of materials and material assemblies when tested in a flat configuration. Method B is used to measure garment response, not arc rating, to an arc exposure including all the garment findings, sewing thread, fastenings, fabrics and other accessories when tested on a male mannequin tors

43、o. Method B is also used for accident replication. It is the responsibility of the user of this part of IEC 61482 to establish appropriate safety and health practices prior to use. For specific precautions, see Clause 7. The test methods in this part of IEC 61482 are not directed to classify by prot

44、ection classes. Methods determining protection classes are prescribed in IEC 61482-1-2. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition o

45、f the referenced document (including any amendments) applies. ISO 3175-2, Textiles Professional care, drycleaning and wetcleaning of fabrics and garments Part 2: Procedure for testing performance when cleaning and finishing using tetrachloroethene ISO 6330, Textiles Domestic washing and drying proce

46、dures for textile testing SANS 61482-1-1:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61482-1-1 IEC:2009 7 ISO 9151, Protective clothing against heat and flame Determination of heat transmission on exposure to flame ISO 15025:2000, Pro

47、tective clothing Protection against heat and flame Method of test for limited flame spread 3 Terms, definitions and symbols For the purposes of this document, the following terms, definitions and symbols apply. NOTE For definitions of other textile terms related to the topic, see ASTM D-123 71). 3.1

48、 Terms and definitions 3.1.1 arc duration time duration of the arc NOTE Arc duration is expressed in s. 3.1.2 arc energy Warcelectrical energy supplied to the arc and converted in the arc; sum of the instantaneous arc voltage values multiplied by the instantaneous arc current values multiplied by th

49、e incremental time values during the arc duration NOTE Arc energy is expressed in kJ or kWs. 3.1.3 arc gap distance between the arc electrodes NOTE Arc gap is expressed in mm. 3.1.4 arc rating value attributed to materials or material systems that describes their performance to exposure to an electrical arc discharge NOTE The arc rating is expressed in kWs/m2 or optionally in cal/cm2 and is derived from the determined value of