BS EN 60674-2:2017+A1:2019
$189.07
Specification for plastic films for electrical purposes – Methods of test
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 50 |
This part of IEC 60674 is applicable to plastic films used for electrical purposes. This part of IEC 60674 gives methods of test.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword |
| 5 | Foreword to amendment A1 Foreword to amendment A1 |
| 6 | Annex ZA (normative) Normative references to international publications with their corresponding European publications |
| 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 4.2.2 Measurement by a single sheet |
| 16 | 4.2.3 Measurement by a multi-layer of sheets 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 5 Density 6 Width 7 Windability (bias/camber and sag) 7.1 Principle |
| 17 | 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 7.4.3 Test specimens 7.4.4 Procedure |
| 20 | 7.4.5 Result 8 Surface roughness 9 Space factor 10 Coefficient of friction 11 Wetting tension (polyolefine films) 11.1 Test principle and introductory remarks |
| 21 | 11.2 Apparatus 11.3 Reagents |
| 22 | 11.4 Test specimens 11.5 Conditioning 11.6 Procedure 11.7 Evaluation 11.8 Report |
| 23 | 12 Tensile properties 12.1 General 12.2 Test specimens 12.3 Speed of testing 12.4 Result 13 Edge tearing resistance 13.1 General 13.2 Principle 14 Tear resistance 15 Stiffness of film |
| 24 | 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 17.2.2 Test specimens 17.2.3 Procedure |
| 25 | 17.2.4 Result 18 Dissipation factor and permittivity 18.1 General 18.2 Method 1 18.2.1 General 18.2.2 Sample and specimen handling 18.2.3 Sample conditioning prior to measurement |
| 26 | 18.2.4 Measurements with contacting electrodes |
| 27 | 18.2.5 Measurements with non-contacting electrodes 18.2.6 Test procedure |
| 28 | 18.2.7 Report 18.3 Method 2 18.3.1 General 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 |
| 29 | 20 Electric strength 20.1 AC and DC tests of film sheet sandwiched by metal electrodes 20.2 DC test using a wound capacitor 20.3 DC test for film thinner than or equal to 6 μm |
| 30 | 21 Electrical weak spots 21.1 General 21.2 Method A: Testing narrow strips of film in long lengths 21.2.1 Test equipment |
| 31 | 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 21.3.3 Procedure |
| 32 | 21.3.4 Results 21.4 Method C: Testing of film in rolls 21.4.1 General 21.4.2 Unreeling system |
| 33 | 21.4.3 Fault counter 21.4.4 Procedure 21.4.5 Results 22 Resistance to breakdown by surface discharges 23 Electrolytic corrosion 24 Melting point 25 Dimensional change 25.1 Test specimens |
| 34 | 25.2 Procedure 25.3 Results 26 Dimensional stability under tension with rising temperature 26.1 Test specimens 26.2 Procedure |
| 35 | 26.3 Results 27 Dimensional stability under pressure with rising temperature 27.1 Test equipment 27.2 Test specimens 27.3 Procedure 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 |
| 36 | 29.2 Procedure 29.3 Result 30 Thermal endurance 31 Burning characteristics 31.1 Principle 31.2 Apparatus |
| 37 | 31.3 Test specimens 31.4 Conditioning 31.5 Procedure |
| 38 | 31.6 Interpretation of results 32 Water absorption in a damp atmosphere 32.1 Apparatus 32.2 Test specimens |
| 39 | 32.3 Procedure 32.3.1 Water absorption of material as-received 32.3.2 Water absorption of dry material 32.4 Results 33 Absorption of liquid 33.1 Principle 33.2 Apparatus |
| 40 | 33.3 Test specimens 33.4 Procedure 33.5 Calculations 33.6 Result 34 Ionic impurities |
| 41 | 35 Effect of insulating varnishes 35.1 Procedure 35.2 Results 36 Effect of polymerisable resinous compounds in a liquid state 36.1 Procedure 36.2 Results |
