BS IEC/IEEE 62582-4:2022 – TC 2023
$217.84
Tracked Changes. Nuclear power plants. Instrumentation and control important to safety. Electrical equipment condition monitoring methods – Oxidation induction techniques
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 76 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 44 | undefined |
| 46 | Blank Page |
| 47 | English CONTENTS |
| 49 | FOREWORD |
| 52 | INTRODUCTION |
| 54 | 1 Scope 2 Normative references 3 Terms and definitions |
| 55 | 4 Abbreviated terms and acronyms 5 General description 6 Applicability and reproducibility |
| 56 | 7 Measurement procedure 7.1 Stabilisation of the polymeric materials 7.2 Sampling 7.2.1 General 7.2.2 Sample requirements 7.2.3 Precautions |
| 57 | 7.3 Sample preparation 7.4 Instrumentation 7.5 Calibration 7.6 OIT measurement method 7.6.1 Measurement procedure |
| 58 | 7.6.2 Temperature profile Figure 1 – OIT measurement – Schematic of temperature and gas profile and corresponding heat flow |
| 59 | 7.6.3 Gas flow 7.6.4 Determining the value of oxidation onset Figures Figure 2 – Schematic showing the types of baselines (flat, sloping, endothermic dip, melting endotherm) observed for OIT and OITP measurements |
| 60 | 7.6.5 Reporting Figure 3 – Schematic showing definition of onset value for OIT and OITP measurements |
| 61 | 7.7 OITP measurement method 7.7.1 Measurement procedure 7.7.2 Temperature profile 7.7.3 Gas flow Figure 4 – Schematic of the temperature for OITP measurements and the corresponding heat flow |
| 62 | 7.7.4 Determining the value of oxidation onset 7.7.5 Reporting |
| 64 | Annex A (informative) Interpretation of thermogram A.1 Interpretation of OIT thermograms Figure A.1 – Example of an OIT plot with clear baseline and onset |
| 65 | Figure A.2 – Example of OIT plot with multiple onsets |
| 66 | Figure A.3 – Example of OIT plot where the baseline is difficult to define Figure A.4 – Example of OIT plot where heat flow is too lowto use standard 0,1 W∙g–1 threshold |
| 67 | A.2 Interpretation of OITP thermograms Figure A.5 – Example of an OITP plot with a well-defined baseline and onset |
| 68 | Figure A.6 – Example of an OITP plot for a semi-crystalline material showing a melting endotherm prior to the oxidation onset Figure A.7 – Example of an OITP plot showing an endothermic dip immediately prior to the oxidation onset |
| 69 | Annex B (informative) Example of a measurement report from OITP and OIT B.1 OITP measurements Tables Table B.1 – Example of a measurement report from OITP |
| 70 | Figure B.1 – Example of OITP test plot |
| 71 | B.2 OIT measurements Table B.2 – Example of a measurement report from OIT |
| 72 | Figure B.2 – Example of OIT test plot |
| 73 | Annex C (informative) Influence of set temperature on the OIT value Figure C.1 – Example of the influence of set temperature on the OIT value |
| 74 | Bibliography |
Related products
-
BS IEC/IEEE 62582-2:2022 – TC
Tracked Changes. Nuclear power plants. Instrumentation and control important to safety. Electrical equipment condition monitoring…
