IEEE 62582-2-2011 Nuclear power plants C Instrumentation and control important to safety C Electrical equipment condition monitoring methods C Part 2 Indenter m.pdf

1、 IEC/IEEE 62582-2 Edition 1.0 2011-08 INTERNATIONAL STANDARD Nuclear power plants Instrumentation and control important to safety Electrical equipment condition monitoring methods Part 2: Indenter modulus Centrales nuclaires de puissance Instrumentation et contrle-commande importants pour la sret Mt

2、hodes de surveillance de ltat des matriels lectriques Partie 2: Module indenter IEC/IEEE 62582-2:2011NORME INTERNATIONALE THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2011 IEC, Geneva, Switzerland Copyright 2011 IEEE All rights reserved. Unless otherwise specified, no part of this publication m

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12、 1.0 2011-08 INTERNATIONAL STANDARD Nuclear power plants Instrumentation and control important to safety Electrical equipment condition monitoring methods Part 2: Indenter modulus Centrales nuclaires de puissance Instrumentation et contrle-commande importants pour la sret Mthodes de surveillance de

13、ltat des matriels lectriques Partie 2: Module indenter R ICS 27.120.20 ISBN 978-2-88912-667-5 INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE PRICE CODE CODE PRIX NORME INTERNATIONALE 2 62582-2 g148 IEC/IEEE:2011 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope and

14、 object 7 2 Terms and definitions . 7 3 Abbreviations and acronyms . 7 4 General description 8 5 Applicability, reproducibility, and complexity . 8 5.1 General . 8 5.2 Applicability . 8 5.3 Reproducibility 8 5.4 Complexity 9 6 Measurement procedure . 9 6.1 Stabilisation of the polymeric materials 9

15、6.2 Sampling and measurement locations . 9 6.3 Conditions for measurement 9 6.4 Instrumentation . 10 6.5 Calibration and tolerances . 11 6.6 Selection of measurement points . 11 6.7 Selection of probe velocity and maximum force . 11 6.8 Clamping . 11 6.9 Determination of the value of the indenter mo

16、dulus . 11 6.10 Reporting 12 Annex A (informative) Examples illustrating factors affecting the variation of the indenter modulus value . 14 Annex B (informative) Example of a measurement report for indenter measurements in laboratory . 18 Bibliography 19 Figure 1 A schematic representation of the ge

17、ometry and dimensions of the probe tip used in the indenter 10 Figure 2 Calculation of indenter modulus . 12 Figure A.1 Example of local variation of indenter modulus due to variation in equipment dimensions and construction 14 Figure A.2 Indenter values measured at different temperatures . 15 Figur

18、e A.3 Normalised indenter mean values . 16 Figure A.4 Example of change of indenter modulus value in laboratory conditions of a hygroscopic sample after removal from long-term exposure in a heat chamber 17 Figure A.5 Adaptation of a decay curve to the measured indenter modulus values in Figure A.4 .

19、 17 Figure B.1 Example of measured force vs displacement 18 62582-2 g148 IEC/IEEE:2011 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ NUCLEAR POWER PLANTS INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY ELECTRICAL EQUIPMENT CONDITION MONITORING METHODS Part 2: Indenter modulus FOREWORD 1) The Interna

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38、y. 4 62582-2 g148 IEC/IEEE:2011 International Standard IEC/IEEE 62582-2 has been prepared by subcommittee 45A: Instrumentation and control of nuclear facilities, of IEC technical committee 45: Nuclear instrumentation, in cooperation with the Nuclear Power Engineering Committee of the Power Fiis the

39、corresponding force value at displacement di.IM shall be determined by using the values F1 = 1 N and F2 = 4 N, see Figure 2. 1098765432100 0,1 0,2 0,3 0,4 0,5 0,6 F2 F1d2 d1Displacement (mm) Load (N)IEC 1962/11 Figure 2 Calculation of indenter modulus 6.10 Reporting The measurement report shall as a

40、 minimum include the following items a) Identification of the equipment measured, including the material formulation. For selection of samples from the field or measurements in the field this shall include plant and location relative to heat and radiation sources (6.2). b) Pre-history of the equipme

41、nt. This may include g120 indenter measurements on samples of new (un-aged) equipment: storage and time interval between production of the equipment sampled and start of the measurement (6.1); g120 indenter measurements on artificially aged samples: ageing conditions of the samples (6.2); g120 inden

42、ter measurements on naturally aged samples (e.g. field measurements): history of environmental conditions to which the sample has been subjected (6.2). c) Place and date of the measurement (laboratory, on-site). d) For laboratory measurement of samples subjected to artificial thermal ageing: time in

43、terval between removing the sample from the heat chamber until start of measurement (6.3). e) Ambient and surface temperature at the time of measurement (6.3). f) Other local conditions and situations encountered during measurement that may influence the results. g) Measurement instrumentation, incl

44、uding software version (6.4). h) Calibration procedure (6.5). i) Measurement points (6.6). j) Probe velocity (6.7). k) Maximum force (6.7). 62582-2 g148 IEC/IEEE:2011 13 l) Mounting of the sample and problems in clamping (6.8). m) For measurements in the field: observations on the condition of the e

45、quipment before and after indenter measurements (6.2). n) Mean value and standard deviation of indenter modulus ( after deleting the highest and lowest value), in Nmm1together with information on the force interval for which it has been determined (normally 1 N to 4 N) (6.6 and 6.9). NOTE If the ind

46、enter measurements are made at a temperature above 25 C, it is recommended that the value referenced to 20 C is also reported, calculated according to Annex A. o) Diagram showing a typical force versus displacement curve. p) Any other information of importance in interpretation of the measurement re

47、sults in relation to the purposes of the measurements. An example of a measurement report is given in Annex B. 14 62582-2 g148 IEC/IEEE:2011 Annex A (informative)Examples illustrating factors affecting the variation of the indenter modulus value A.1 Example of influence of variability in equipment d

48、imensions and construction Figure A.1 illustrates the variations due to variability in equipment dimensions and construction, showing sets of data from indenter measurements at eight points on the jacket of a 7 core cable with jacket material CSPE and insulator material EPDM. The mean values and sta

49、ndard deviations of the indenter modulus measured were 15,57 Nmm1and 0,58 Nmm1for the unaged cable jacket, 23,21 Nmm1and 1,06 Nmm1for the thermally aged cable jacket. 9 8 7 6 6 5 4 3 2 1 0 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 Load (N)Displacement (mm) Unaged 9 8 7 6 5 4 3 2 1 0 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 Load (N)Displacement (mm) Thermally aged 1 008 h at 120 C IEC 1964/11 IEC 1963/11 Figure A.1 Example of local variation of indenter modulus due to variatio