Transformerboard
TT/X/LD and TT/X/H
| Properties | Test-Standard | Pre-Treatment | Unit | Average Value 3mm | Standard-DIN7733 | |
| Density | DIN 7734 | 23°C/50% | g/cm³ | 0.95 | 0.9-1.1 | |
| Tensile Strength | Long: Trans: |
}DIN 7734 |
23°C/50% | N/mm² | 90
60 |
|
| 50
30 |
||||||
|
Compressibility |
at 20 N/mm²: at 40 N/mm²: |
}PQN3 |
dried 48h/105°C | % | 9
15 |
- |
|
Reversible Compressibility |
at 20 N/mm²: at 40 N/mm²: |
}PQN3 |
dried 48h/105°C | % | 7
11 |
- |
| Elongation: | Long:
Trans: |
}DIN 7734 |
23°C/50% | % | 9
11 |
8
10 |
| Flexibility: | Long:
Trans: |
}DIN 53452 |
23°C/50% | N/mm² | 80
60 |
- |
| Withstand pressure: | Long:
Trans: |
}DIN 53454 |
23°C/50% | N/mm² | 30
27 |
- |
| Young's Modul: | Long:
Trans: |
}DIN 53457 |
23°C/50% | N/mm² | 0.6 x 104
0.5 x 104 |
- |
| Shrinkage | Long:
Max-trans: Thickness: |
}DIN 7734 |
23°C/50% | % | 0.7
1.0 4.5 |
1.2
- - |
| Moisture max. | DIN 53103 | as supplied | % | 8 | 8 | |
| Ash max. | DIN 7734 | 23°C/50% | % | 0.4 | 2 | |
| Conductivity of aqueous extract | DIN 53114 | as supplied | mS/m | 4 | 10 | |
| pH-values of aqueous extract | DIN 53124 | as supplied | - | 7.9 | - | |
| Oil absorption | IEC 641-2 | Moisture contents <0.1% | % | 35 | - | |
| tangens delta | DIN 53483 | oil impregnated | % | 0.3 | - | |
| Permittivity | DIN 53483 | oil impregnated | - | 3.8 | - | |
| Dielectric Strength | DIN 53481 | 23°C/50% | kV/mm | 8 | 8-9 | |
| dried 48h/105°C | kV/mm | 10 | - | |||
| Properties | Test-Standard | Pre-Treatment | Unit | Average Value 3mm | Standard-DIN 7733 | Standard-IEC 641-3 | |
| Tolerance on thickness | DIN 7734 | 23°C/50% | mm | DIN 40600 | DIN 40600 | ± 5 % | |
| Density | DIN 7734 | 23°C/50% | g/cm³ | 1.15-1.25 | 1.15-1.30 | 1.10-1.30 | |
| Tensile Strength |
Long: Trans: |
}DIN 7734 |
23°C/50% | N/mm² | 120
90 |
||
| 100
70 |
110
85 |
||||||
|
Compressibility |
at 20 N/mm²: at 40 N/mm²: |
}PQN3 |
dried 48h/105°C | % | 4.0
6.5 |
- - |
- - |
|
Reversible Compressibility |
at 20 N/mm²: at 40 N/mm²: |
}PQN3 |
dried 48h/105°C | % | 2.6
4.5 |
- - |
- - |
| Elongation: | Long:
Trans: |
}DIN 7734 |
23°C/50% | % | 3.5
4.0 |
3.0
4.0 |
3.5
4.0 |
| Flexibility: | Long:
Trans: |
}DIN 53452 |
23°C/50% | N/mm² | 120
100 |
- - |
- - |
| Withstand pressure: | Long:
Trans: |
}DIN 53454 |
23°C/50% | N/mm² | 70
65 |
- - |
- - |
| Young's Modul: | Long:
Trans: |
}DIN 53457 |
23°C/50% | N/mm² | 1.3 x 104
1.0 x 104 |
- - |
- - |
| Shrinkage | Long:
Max-trans: Thickness: |
}DIN 7734 |
23°C/50% | % | 0.4
0.6 4.0 |
0.6 - - |
0.5
0.7 4.5 |
| Moisture max. | DIN 53103 | as supplied | % | 6 | 8 | 6 | |
| Ash max. | DIN 7734 | 23°C/50% | % | 0.4 | 2 | 1 | |
| Conductivity of aqueous extract | DIN 53114 | as supplied | mS/m | 6 | 10 | 8-15 | |
| pH-values of aqueous extract | DIN 53124 | as supplied | - | 7.9 | - | 5.5-9-0 | |
| Oil absorption | IEC 641-2 | Moisture contents 0.1% | % | 12 | - | 9 | |
| tangens delta | DIN 53483 | oil impregnated | % | 0.40 | - | - | |
| Permittivity | DIN 53483 | oil impregnated | - | 4.5 | - | - | |
| Dielectric Strength | DIN 53481 | 23°C/50% | kV/mm | 11-13 | 11-12 | - | |
| IEC 641-2 | dried 48h/105°C | kV/mm | 13-15 | - | 9-12 | ||
| oil impregnated | kV/mm | 50 | - | 25-35 | |||
| Withstand voltage 1 min | DIN 53481 | oil impregnated | kV | 85 | - | 25-35 | |
