BS EN 60674-2:2017:2018 Edition
$189.07
Specification for plastic films for electrical purposes – Methods of test
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 48 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 7 | CONTENTS |
| 11 | FOREWORD |
| 13 | INTRODUCTION |
| 14 | 1 Scope 2 Normative references |
| 15 | 3 General notes on tests 4 Thickness 4.1 General 4.2 Determination of thickness by mechanical scanning 4.2.1 General |
| 16 | 4.2.2 Measurement by a single sheet 4.3 Determination of thickness by gravimetric method 4.3.1 Measurement by a sample 4.3.2 Measurement by a roll 4.4 Crosswise thickness profile and lengthwise variation in thickness |
| 17 | 5 Density 6 Width 7 Windability (bias/camber and sag) 7.1 Principle 7.2 General 7.3 Method A 7.3.1 Principle 7.3.2 Measurement of bias/camber |
| 18 | 7.3.3 Measurement of sag |
| 19 | 7.4 Method B 7.4.1 Principle 7.4.2 Apparatus |
| 20 | 7.4.3 Test specimens 7.4.4 Procedure 7.4.5 Result 8 Surface roughness 9 Space factor |
| 21 | 10 Coefficient of friction 11 Wetting tension (polyolefine films) 11.1 Test principle and introductory remarks 11.2 Apparatus 11.3 Reagents |
| 22 | 11.4 Test specimens 11.5 Conditioning 11.6 Procedure Tables Table 1 – Concentrations of ethylene-glycol-monoethyl-ether, formamide mixtures used in measuring wetting tension of polyethylene and polypropylene films |
| 23 | 11.7 Evaluation 11.8 Report 12 Tensile properties 12.1 General 12.2 Test specimens 12.3 Speed of testing 12.4 Result |
| 24 | 13 Edge tearing resistance 13.1 General 13.2 Principle 14 Tear resistance 15 Stiffness of film 16 Surface resistivity 17 Volume resistivity 17.1 Method 1: Electrode method 17.2 Method 2: Method for wound capacitor dielectric films or films too thin for Method 1 17.2.1 Principle |
| 25 | 17.2.2 Test specimens 17.2.3 Procedure 17.2.4 Result 18 Dissipation factor and permittivity 18.1 General 18.2 Method 1 18.2.1 General |
| 26 | 18.2.2 Sample and specimen handling 18.2.3 Sample conditioning prior to measurement 18.2.4 Measurements with contacting electrodes |
| 28 | 18.2.5 Measurements with non-contacting electrodes 18.2.6 Test procedure 18.2.7 Report 18.3 Method 2 18.3.1 General |
| 29 | 18.3.2 Dissipation factor at or above 5 × 10–4 18.3.3 Dissipation factor below 5 × 10–4 19 Dissipation factor under impregnated conditions 20 Electric strength 20.1 AC and DC tests of film sheet sandwiched by metal electrodes 20.2 DC test using a wound capacitor 21 Electrical weak spots 21.1 General |
| 30 | 21.2 Method A: Testing narrow strips of film in long lengths 21.2.1 Test equipment 21.2.2 Procedure 21.2.3 Results 21.3 Method B: Testing wide strips of film 21.3.1 General 21.3.2 Test equipment |
| 31 | 21.3.3 Procedure 21.3.4 Results 21.4 Method C: Testing of film in rolls 21.4.1 General 21.4.2 Unreeling system |
| 32 | 21.4.3 Fault counter 21.4.4 Procedure 21.4.5 Results |
| 33 | 22 Resistance to breakdown by surface discharges 23 Electrolytic corrosion 24 Melting point 25 Dimensional change 25.1 Test specimens 25.2 Procedure 25.3 Results |
| 34 | 26 Dimensional stability under tension with rising temperature 26.1 Test specimens 26.2 Procedure 26.3 Results 27 Dimensional stability under pressure with rising temperature 27.1 Test equipment 27.2 Test specimens 27.3 Procedure |
| 35 | 27.4 Results 28 Resistance to penetration at elevated temperature 28.1 General 28.2 Principle 29 Volatile content (loss of mass on heating) 29.1 Test specimens 29.2 Procedure 29.3 Result 30 Thermal endurance |
| 36 | 31 Burning characteristics 31.1 Principle 31.2 Apparatus 31.3 Test specimens 31.4 Conditioning |
| 37 | 31.5 Procedure 31.6 Interpretation of results |
| 38 | 32 Water absorption in a damp atmosphere 32.1 Apparatus 32.2 Test specimens 32.3 Procedure 32.3.1 Water absorption of material as-received 32.3.2 Water absorption of dry material Table 2 – Classification of materials regarding self-extinguishing properties |
| 39 | 32.4 Results 33 Absorption of liquid 33.1 Principle 33.2 Apparatus 33.3 Test specimens 33.4 Procedure |
| 40 | 33.5 Calculations 33.6 Result 34 Ionic impurities 35 Effect of insulating varnishes 35.1 Procedure 35.2 Results |
| 41 | 36 Effect of polymerisable resinous compounds in a liquid state 36.1 Procedure 36.2 Results Figures Figure 1 – Windability of film – Measurement of bias/camber – Method A |
| 42 | Figure 2 – Windability of film – Apparatus for measurement of sag – Method A Figure 3 – Windability of film –Measurement of sag – Method A |
| 43 | Figure 4 – Three-terminal electrode system for low frequencies (up to 50 kHz) Figure 5 – Two-electrode system for high frequencies (above 50 kHz) |
| 44 | Figure 6 – Equipment for testing for electrical weak spots by Method A |
| 45 | Figure 7 – Equipment for testing for electrical weak spots by Method B Figure 8 – Equipment for testing for electrical weak spots by Method C1 |
| 46 | Figure 9 – Equipment for testing for electrical weak spots by Method C2 Figure 10 – Equipment for testing for electrical weak spots by Method C3 |
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BS EN 60674-2:2017+A1:2019
Specification for plastic films for electrical purposes – Methods of test Published By Publication Date…
