
Stripwound Insulation with TUFR
TuFR™ is IPT's fire resistant mineral insulation paper for UL Class 200°C (N). Based on the successfull composition of the TUFQUIN it demonstrates the same mechanical and dielectrical performance such as the high mechanical strength of organic fibres with the excellent thermal and dielectric characteristics of mineral papers. Due to the high tensile strength of TuFR™ this material is often used for interlayer insulation in transformers.
Key Features
- UL System Recognition per UL 1446 ad IEC 61857 for Class 200(N)
- V0 for thickness >= 2,5mils (0,06mm)
- High resin absorption
- High thermal conductivity
- Cost Effective
Technical Data
| Nominal Thickness | [mils] | 2 | 3 | 5 | 7 | 10 |
| Nominal Thickness | [mm] | 0,05 | 0,08 | 0,13 | 0,18 | 0,25 |
| Basis Weight | [g/m2] | 57 | 100 | 146 | 217 | 320 |
| Dielectric Strength | [kV] | 0,4 | 0,6 | 0,7 | 1,0 | 1,5 |
| Tensil Strength MD | [kN/M] | 2,3 | 4 | 4,9 | 9,1 | 9,6 |
| Tensil Strength CD | [kN/m] | 0,7 | 1,4 | 2,3 | 3,9 | 4,9 |
| Elongation MD | [%] | 15 | 22 | 18 | 21 | 22 |
| Elongation CD | [%] | 11 | 11 | 11 | 18 | 20 |
| Elmendorf Tear Strength MD | [g] | 48 | 70 | 228 | 420 | 560 |
| Elmendorf Tear Strength CD | [g] | 120 | 180 | 480 | 656 | 2016 |
| Moisture Content | [%] | 1 | 1 | 1 | 1 | 1 |
Major Applications
- Layer insulation for resin-encapsulated coils
- Wire-wrap for dry-type and liquid-immersed units
Technical Documents
- » TUFR DATA SHEET 2mils [13 KB]
- » TUFR DATA SHEET 3mils [13 KB]
- » TUFR DATA SHEET 5mils [13 KB]
- » TUFR DATA SHEET 7mils [13 KB]
- » TUFR DATA SHEET 10mils [13 KB]
- » TUFR DATA SHEET [16 KB]
- » TUFR V0 Certificate [31 KB]
- » TUFR YELLOW CARD [17 KB]
- » TUFR Certificate ROHS [78 KB]
Selection of applicable UL systems
- » UL System 155°C - DV-155J Table6 [23 KB]
- » UL System 155°C - QT-155 PLUS [31 KB]
- » UL System 155°C - QT155TQ [681 KB]
- » UL System 180°C - QT180Plus [7 KB]
- » UL System 180°C - QT180T [694 KB]
- » UL System 180°C - QTR180B [23 KB]
- » UL System 200°C - QT200 [752 KB]
- » UL System 220°C - IPT-220 Table1 [8 KB]
- » UL System 220°C - IPT-220 Table2 [28 KB]
Last Modification Freitag, 7. Mai 2010 at 22:30:35